System.Data.SQLite

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Overview
Comment:Major cleanup and refactoring of the ISQLiteManagedModule interface. Fix a small memory leak in DeclareVirtualTable. Add the ability to persist SQLiteValue values beyond the duration of the method call in progress. Add SQLiteVirtualTable base class. Update SQLiteVirtualTableCursor base class to be IDisposable and to support storing the filtering parameters. Make parameter naming in the ISQLiteManagedModule interface consistent with other managed code. Add SQLiteVirtualTable parameter to the ISQLiteManagedModule interface methods where necessary. Remove incorrect SQLiteIndex object creation from the IndexToIntPtr method. Keep track of all managed table and cursor object instances associated with their native pointers. Zero out the native sqlite3_vtab object right after allocation. Correct declarations for the sqlite3_vtab and sqlite3_vtab_cursor structures. Add SQLiteModuleEnumerable and SQLiteVirtualTableCursorEnumerable classes to allow an IEnumerable to provide the data for a virtual table.
Downloads: Tarball | ZIP archive
Timelines: family | ancestors | descendants | both | virtualTables
Files: files | file ages | folders
SHA1: d3ac8fc2c3d3b2b373e179ffe66e8eee05ba80e5
User & Date: mistachkin 2013-06-21 03:11:57.009
Context
2013-06-21
05:14
Fix memory leak in the SQLiteModuleBase class. Add support for optionally tracking memory usage of the SQLiteMarshal class. Make sure sqlite3_*_interop() functions are only used when SQLITE_STANDARD is not defined. check-in: 4aab5f9721 user: mistachkin tags: virtualTables
03:11
Major cleanup and refactoring of the ISQLiteManagedModule interface. Fix a small memory leak in DeclareVirtualTable. Add the ability to persist SQLiteValue values beyond the duration of the method call in progress. Add SQLiteVirtualTable base class. Update SQLiteVirtualTableCursor base class to be IDisposable and to support storing the filtering parameters. Make parameter naming in the ISQLiteManagedModule interface consistent with other managed code. Add SQLiteVirtualTable parameter to the ISQLiteManagedModule interface methods where necessary. Remove incorrect SQLiteIndex object creation from the IndexToIntPtr method. Keep track of all managed table and cursor object instances associated with their native pointers. Zero out the native sqlite3_vtab object right after allocation. Correct declarations for the sqlite3_vtab and sqlite3_vtab_cursor structures. Add SQLiteModuleEnumerable and SQLiteVirtualTableCursorEnumerable classes to allow an IEnumerable to provide the data for a virtual table. check-in: d3ac8fc2c3 user: mistachkin tags: virtualTables
2013-06-20
03:08
Fix handling of copied connection handles when calling Create and Connect virtual methods. Get initial test passing. check-in: e1bef414b7 user: mistachkin tags: virtualTables
Changes
Unified Diff Ignore Whitespace Patch
Changes to System.Data.SQLite/SQLite3.cs.
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    {
        if (_sql == null)
        {
            error = "connection has an invalid handle";
            return SQLiteErrorCode.Error;
        }







        SQLiteErrorCode n = UnsafeNativeMethods.sqlite3_declare_vtab(
            _sql, SQLiteMarshal.Utf8IntPtrFromString(strSql));

        if ((n == SQLiteErrorCode.Ok) && (module != null))
            module.Declared = true;

        if (n != SQLiteErrorCode.Ok) error = GetLastError();

        return n;









    }

    /// <summary>
    /// Enables or disabled extension loading by SQLite.
    /// </summary>
    /// <param name="bOnOff">
    /// True to enable loading of extensions, false to disable.







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    {
        if (_sql == null)
        {
            error = "connection has an invalid handle";
            return SQLiteErrorCode.Error;
        }

        IntPtr pSql = IntPtr.Zero;

        try
        {
            pSql = SQLiteMarshal.Utf8IntPtrFromString(strSql);

            SQLiteErrorCode n = UnsafeNativeMethods.sqlite3_declare_vtab(
                _sql, pSql);

            if ((n == SQLiteErrorCode.Ok) && (module != null))
                module.Declared = true;

            if (n != SQLiteErrorCode.Ok) error = GetLastError();

            return n;
        }
        finally
        {
            if (pSql != IntPtr.Zero)
            {
                SQLiteMarshal.Free(pSql);
                pSql = IntPtr.Zero;
            }
        }
    }

    /// <summary>
    /// Enables or disabled extension loading by SQLite.
    /// </summary>
    /// <param name="bOnOff">
    /// True to enable loading of extensions, false to disable.
Changes to System.Data.SQLite/SQLiteConvert.cs.
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    /// </summary>
    Null = 5,
    /// <summary>
    /// Used internally by this provider
    /// </summary>
    DateTime = 10,
    /// <summary>
    /// Used internally
    /// </summary>
    None = 11,
  }

  /// <summary>
  /// These are the event types associated with the
  /// <see cref="SQLiteConnectionEventHandler" />







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    /// </summary>
    Null = 5,
    /// <summary>
    /// Used internally by this provider
    /// </summary>
    DateTime = 10,
    /// <summary>
    /// Used internally by this provider
    /// </summary>
    None = 11,
  }

  /// <summary>
  /// These are the event types associated with the
  /// <see cref="SQLiteConnectionEventHandler" />
Changes to System.Data.SQLite/SQLiteModuleBase.cs.
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/********************************************************
 * ADO.NET 2.0 Data Provider for SQLite Version 3.X
 * Written by Joe Mistachkin (joe@mistachkin.com)
 *
 * Released to the public domain, use at your own risk!
 ********************************************************/


using System.Globalization;
using System.Runtime.InteropServices;
using System.Security;

#if !NET_40
using System.Security.Permissions;
#endif

using System.Text;

namespace System.Data.SQLite
{
    #region SQLite Context Helper Class
    public sealed class SQLiteContext
    {







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/********************************************************
 * ADO.NET 2.0 Data Provider for SQLite Version 3.X
 * Written by Joe Mistachkin (joe@mistachkin.com)
 *
 * Released to the public domain, use at your own risk!
 ********************************************************/

using System.Collections.Generic;
using System.Globalization;
using System.Runtime.InteropServices;






using System.Text;

namespace System.Data.SQLite
{
    #region SQLite Context Helper Class
    public sealed class SQLiteContext
    {
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        {
            this.pValue = pValue;
        }
        #endregion

        ///////////////////////////////////////////////////////////////////////





































        #region Public Methods
        public TypeAffinity GetTypeAffinity()
        {
            if (pValue == IntPtr.Zero) return TypeAffinity.None;
            return UnsafeNativeMethods.sqlite3_value_type(pValue);
        }








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        {
            this.pValue = pValue;
        }
        #endregion

        ///////////////////////////////////////////////////////////////////////

        #region Private Methods
        private void PreventNativeAccess()
        {
            pValue = IntPtr.Zero;
        }
        #endregion

        ///////////////////////////////////////////////////////////////////////

        #region Public Properties
        private bool persisted;
        public bool Persisted
        {
            get { return persisted; }
        }

        ///////////////////////////////////////////////////////////////////////

        private object value;
        public object Value
        {
            get
            {
                if (!persisted)
                {
                    throw new InvalidOperationException(
                        "value was not persisted");
                }

                return value;
            }
        }
        #endregion

        ///////////////////////////////////////////////////////////////////////

        #region Public Methods
        public TypeAffinity GetTypeAffinity()
        {
            if (pValue == IntPtr.Zero) return TypeAffinity.None;
            return UnsafeNativeMethods.sqlite3_value_type(pValue);
        }

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        ///////////////////////////////////////////////////////////////////////

        public byte[] GetBlob()
        {
            if (pValue == IntPtr.Zero) return null;
            return SQLiteMarshal.BytesFromIntPtr(pValue, GetBytes());
        }

















































        #endregion
    }
    #endregion

    ///////////////////////////////////////////////////////////////////////////

    #region SQLiteIndexConstraintOp Enumeration







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        ///////////////////////////////////////////////////////////////////////

        public byte[] GetBlob()
        {
            if (pValue == IntPtr.Zero) return null;
            return SQLiteMarshal.BytesFromIntPtr(pValue, GetBytes());
        }

        ///////////////////////////////////////////////////////////////////////

        public bool Persist()
        {
            switch (GetTypeAffinity())
            {
                case TypeAffinity.Uninitialized:
                    {
                        value = null;
                        PreventNativeAccess();
                        return (persisted = true);
                    }
                case TypeAffinity.Int64:
                    {
                        value = GetInt64();
                        PreventNativeAccess();
                        return (persisted = true);
                    }
                case TypeAffinity.Double:
                    {
                        value = GetDouble();
                        PreventNativeAccess();
                        return (persisted = true);
                    }
                case TypeAffinity.Text:
                    {
                        value = GetString();
                        PreventNativeAccess();
                        return (persisted = true);
                    }
                case TypeAffinity.Blob:
                    {
                        value = GetBytes();
                        PreventNativeAccess();
                        return (persisted = true);
                    }
                case TypeAffinity.Null:
                    {
                        value = DBNull.Value;
                        PreventNativeAccess();
                        return (persisted = true);
                    }
                default:
                    {
                        return false;
                    }
            }
        }
        #endregion
    }
    #endregion

    ///////////////////////////////////////////////////////////////////////////

    #region SQLiteIndexConstraintOp Enumeration
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        public SQLiteIndexConstraintUsage[] ConstraintUsages
        {
            get { return constraintUsages; }
        }

        ///////////////////////////////////////////////////////////////////////

        private int idxNum;
        public int IdxNum
        {
            get { return idxNum; }
            set { idxNum = value; }
        }

        ///////////////////////////////////////////////////////////////////////

        private string idxStr;
        public string IdxStr
        {
            get { return idxStr; }
            set { idxStr = value; }
        }

        ///////////////////////////////////////////////////////////////////////

        private int needToFreeIdxStr;
        public int NeedToFreeIdxStr
        {
            get { return needToFreeIdxStr; }
            set { needToFreeIdxStr = value; }
        }

        ///////////////////////////////////////////////////////////////////////

        private int orderByConsumed;
        public int OrderByConsumed
        {







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        public SQLiteIndexConstraintUsage[] ConstraintUsages
        {
            get { return constraintUsages; }
        }

        ///////////////////////////////////////////////////////////////////////

        private int indexNumber;
        public int IndexNumber
        {
            get { return indexNumber; }
            set { indexNumber = value; }
        }

        ///////////////////////////////////////////////////////////////////////

        private string indexString;
        public string IndexString
        {
            get { return indexString; }
            set { indexString = value; }
        }

        ///////////////////////////////////////////////////////////////////////

        private int needToFreeIndexString;
        public int NeedToFreeIndexString
        {
            get { return needToFreeIndexString; }
            set { needToFreeIndexString = value; }
        }

        ///////////////////////////////////////////////////////////////////////

        private int orderByConsumed;
        public int OrderByConsumed
        {
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    ///////////////////////////////////////////////////////////////////////////

    #region SQLiteIndex Class
    public sealed class SQLiteIndex
    {
        #region Internal Constructors
        internal SQLiteIndex(int nConstraint, int nOrderBy)



        {
            inputs = new SQLiteIndexInputs(nConstraint, nOrderBy);
            outputs = new SQLiteIndexOutputs(nConstraint);
        }
        #endregion

        ///////////////////////////////////////////////////////////////////////







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    ///////////////////////////////////////////////////////////////////////////

    #region SQLiteIndex Class
    public sealed class SQLiteIndex
    {
        #region Internal Constructors
        internal SQLiteIndex(
            int nConstraint,
            int nOrderBy
            )
        {
            inputs = new SQLiteIndexInputs(nConstraint, nOrderBy);
            outputs = new SQLiteIndexOutputs(nConstraint);
        }
        #endregion

        ///////////////////////////////////////////////////////////////////////
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        }
        #endregion
    }
    #endregion

    ///////////////////////////////////////////////////////////////////////////




















































































































































































    #region SQLiteVirtualTableCursor Class

    public class SQLiteVirtualTableCursor : ISQLiteNativeHandle
    {
        #region Public Constructors
        public SQLiteVirtualTableCursor(






            IntPtr nativeHandle

            )



        {


            this.nativeHandle = nativeHandle;







































































        }
        #endregion

        ///////////////////////////////////////////////////////////////////////

        #region ISQLiteNativeHandle Members
        private IntPtr nativeHandle;
        public IntPtr NativeHandle
        {
            get { return nativeHandle; }

























































        }
        #endregion
    }
    #endregion

    ///////////////////////////////////////////////////////////////////////////








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        }
        #endregion
    }
    #endregion

    ///////////////////////////////////////////////////////////////////////////

    #region SQLiteVirtualTable Class
    /* NOT SEALED */
    public class SQLiteVirtualTable : ISQLiteNativeHandle, IDisposable
    {
        #region Private Constants
        private const int ModuleNameIndex = 0;
        private const int DatabaseNameIndex = 1;
        private const int TableNameIndex = 2;
        #endregion

        ///////////////////////////////////////////////////////////////////////

        #region Public Constructors
        public SQLiteVirtualTable(
            string[] arguments
            )
        {
            this.arguments = arguments;
        }
        #endregion

        ///////////////////////////////////////////////////////////////////////

        #region Public Properties
        private string[] arguments;
        public virtual string[] Arguments
        {
            get { CheckDisposed(); return arguments; }
        }

        ///////////////////////////////////////////////////////////////////////

        public virtual string ModuleName
        {
            get
            {
                CheckDisposed();

                string[] arguments = Arguments;

                if ((arguments != null) &&
                    (arguments.Length > ModuleNameIndex))
                {
                    return arguments[ModuleNameIndex];
                }
                else
                {
                    return null;
                }
            }
        }

        ///////////////////////////////////////////////////////////////////////

        public virtual string DatabaseName
        {
            get
            {
                CheckDisposed();

                string[] arguments = Arguments;

                if ((arguments != null) &&
                    (arguments.Length > DatabaseNameIndex))
                {
                    return arguments[DatabaseNameIndex];
                }
                else
                {
                    return null;
                }
            }
        }

        ///////////////////////////////////////////////////////////////////////

        public virtual string TableName
        {
            get
            {
                CheckDisposed();

                string[] arguments = Arguments;

                if ((arguments != null) &&
                    (arguments.Length > TableNameIndex))
                {
                    return arguments[TableNameIndex];
                }
                else
                {
                    return null;
                }
            }
        }
        #endregion

        ///////////////////////////////////////////////////////////////////////

        #region Public Methods
        public virtual bool Rename(
            string name
            )
        {
            CheckDisposed();

            if ((arguments != null) &&
                (arguments.Length > TableNameIndex))
            {
                arguments[TableNameIndex] = name;
                return true;
            }

            return false;
        }
        #endregion

        ///////////////////////////////////////////////////////////////////////

        #region ISQLiteNativeHandle Members
        private IntPtr nativeHandle;
        public virtual IntPtr NativeHandle
        {
            get { CheckDisposed(); return nativeHandle; }
            internal set { nativeHandle = value; }
        }
        #endregion

        ///////////////////////////////////////////////////////////////////////

        #region IDisposable Members
        public void Dispose()
        {
            Dispose(true);
            GC.SuppressFinalize(this);
        }
        #endregion

        ///////////////////////////////////////////////////////////////////////

        #region IDisposable "Pattern" Members
        private bool disposed;
        private void CheckDisposed() /* throw */
        {
#if THROW_ON_DISPOSED
            if (disposed)
            {
                throw new ObjectDisposedException(
                    typeof(SQLiteVirtualTable).Name);
            }
#endif
        }

        ///////////////////////////////////////////////////////////////////////

        protected virtual void Dispose(bool disposing)
        {
            if (!disposed)
            {
                //if (disposing)
                //{
                //    ////////////////////////////////////
                //    // dispose managed resources here...
                //    ////////////////////////////////////
                //}

                //////////////////////////////////////
                // release unmanaged resources here...
                //////////////////////////////////////

                disposed = true;
            }
        }
        #endregion
    }
    #endregion

    ///////////////////////////////////////////////////////////////////////////

    #region SQLiteVirtualTableCursor Class
    /* NOT SEALED */
    public class SQLiteVirtualTableCursor : ISQLiteNativeHandle, IDisposable
    {
        #region Public Constructors
        public SQLiteVirtualTableCursor(
            SQLiteVirtualTable table
            )
        {
            this.table = table;
        }
        #endregion

        ///////////////////////////////////////////////////////////////////////

        #region Public Properties
        private SQLiteVirtualTable table;
        public virtual SQLiteVirtualTable Table
        {
            get { CheckDisposed(); return table; }
        }

        ///////////////////////////////////////////////////////////////////////

        private int indexNumber;
        public virtual int IndexNumber
        {
            get { CheckDisposed(); return indexNumber; }
        }

        ///////////////////////////////////////////////////////////////////////

        private string indexString;
        public virtual string IndexString
        {
            get { CheckDisposed(); return indexString; }
        }

        ///////////////////////////////////////////////////////////////////////

        private SQLiteValue[] values;
        public virtual SQLiteValue[] Values
        {
            get { CheckDisposed(); return values; }
        }
        #endregion

        ///////////////////////////////////////////////////////////////////////

        #region Protected Methods
        protected virtual int TryPersistValues(
            SQLiteValue[] values
            )
        {
            int result = 0;

            if (values != null)
            {
                foreach (SQLiteValue value in values)
                {
                    if (value == null)
                        continue;

                    if (value.Persist())
                        result++;
                }
            }

            return result;
        }
        #endregion

        ///////////////////////////////////////////////////////////////////////

        #region Public Methods
        public virtual void Filter(
            int indexNumber,
            string indexString,
            SQLiteValue[] values
            )
        {
            CheckDisposed();

            if ((values != null) &&
                (TryPersistValues(values) != values.Length))
            {
                throw new SQLiteException(SQLiteErrorCode.Error,
                    "failed to persist one or more values");
            }

            this.indexNumber = indexNumber;
            this.indexString = indexString;
            this.values = values;
        }
        #endregion

        ///////////////////////////////////////////////////////////////////////

        #region ISQLiteNativeHandle Members
        private IntPtr nativeHandle;
        public virtual IntPtr NativeHandle
        {
            get { CheckDisposed(); return nativeHandle; }
            internal set { nativeHandle = value; }
        }
        #endregion

        ///////////////////////////////////////////////////////////////////////

        #region IDisposable Members
        public void Dispose()
        {
            Dispose(true);
            GC.SuppressFinalize(this);
        }
        #endregion

        ///////////////////////////////////////////////////////////////////////

        #region IDisposable "Pattern" Members
        private bool disposed;
        private void CheckDisposed() /* throw */
        {
#if THROW_ON_DISPOSED
            if (disposed)
            {
                throw new ObjectDisposedException(
                    typeof(SQLiteVirtualTableCursor).Name);
            }
#endif
        }

        ///////////////////////////////////////////////////////////////////////

        protected virtual void Dispose(bool disposing)
        {
            if (!disposed)
            {
                //if (disposing)
                //{
                //    ////////////////////////////////////
                //    // dispose managed resources here...
                //    ////////////////////////////////////
                //}

                //////////////////////////////////////
                // release unmanaged resources here...
                //////////////////////////////////////

                disposed = true;
            }
        }
        #endregion

        ///////////////////////////////////////////////////////////////////////

        #region Destructor
        ~SQLiteVirtualTableCursor()
        {
            Dispose(false);
        }
        #endregion
    }
    #endregion

    ///////////////////////////////////////////////////////////////////////////

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    {
        bool Declared { get; }
        string Name { get; }

        ///////////////////////////////////////////////////////////////////////

        SQLiteErrorCode Create(
            SQLiteConnection connection, /* in */
            IntPtr pClientData,          /* in */
            string[] argv,               /* in */

            ref string error             /* out */
            );

        ///////////////////////////////////////////////////////////////////////

        SQLiteErrorCode Connect(
            SQLiteConnection connection, /* in */
            IntPtr pClientData,          /* in */
            string[] argv,               /* in */

            ref string error             /* out */
            );

        ///////////////////////////////////////////////////////////////////////

        SQLiteErrorCode BestIndex(

            SQLiteIndex index /* in, out */






            );

        ///////////////////////////////////////////////////////////////////////

        SQLiteErrorCode Disconnect();

        ///////////////////////////////////////////////////////////////////////

        SQLiteErrorCode Destroy();

        ///////////////////////////////////////////////////////////////////////

        SQLiteErrorCode Open(

            ref SQLiteVirtualTableCursor cursor /* out */
            );

        ///////////////////////////////////////////////////////////////////////

        SQLiteErrorCode Close(
            SQLiteVirtualTableCursor cursor /* in */
            );

        ///////////////////////////////////////////////////////////////////////

        SQLiteErrorCode Filter(
            SQLiteVirtualTableCursor cursor, /* in */
            int idxNum,                      /* in */
            string idxStr,                   /* in */
            SQLiteValue[] argv               /* in */
            );

        ///////////////////////////////////////////////////////////////////////

        SQLiteErrorCode Next(
            SQLiteVirtualTableCursor cursor /* in */
            );







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    {
        bool Declared { get; }
        string Name { get; }

        ///////////////////////////////////////////////////////////////////////

        SQLiteErrorCode Create(
            SQLiteConnection connection,  /* in */
            IntPtr pClientData,           /* in */
            string[] arguments,           /* in */
            ref SQLiteVirtualTable table, /* out */
            ref string error              /* out */
            );

        ///////////////////////////////////////////////////////////////////////

        SQLiteErrorCode Connect(
            SQLiteConnection connection,  /* in */
            IntPtr pClientData,           /* in */
            string[] arguments,           /* in */
            ref SQLiteVirtualTable table, /* out */
            ref string error              /* out */
            );

        ///////////////////////////////////////////////////////////////////////

        SQLiteErrorCode BestIndex(
            SQLiteVirtualTable table, /* in */
            SQLiteIndex index         /* in, out */
            );

        ///////////////////////////////////////////////////////////////////////

        SQLiteErrorCode Disconnect(
            SQLiteVirtualTable table /* in */
            );

        ///////////////////////////////////////////////////////////////////////

        SQLiteErrorCode Destroy(
            SQLiteVirtualTable table /* in */

            );


        ///////////////////////////////////////////////////////////////////////

        SQLiteErrorCode Open(
            SQLiteVirtualTable table,           /* in */
            ref SQLiteVirtualTableCursor cursor /* out */
            );

        ///////////////////////////////////////////////////////////////////////

        SQLiteErrorCode Close(
            SQLiteVirtualTableCursor cursor /* in */
            );

        ///////////////////////////////////////////////////////////////////////

        SQLiteErrorCode Filter(
            SQLiteVirtualTableCursor cursor, /* in */
            int indexNumber,                 /* in */
            string indexString,              /* in */
            SQLiteValue[] values             /* in */
            );

        ///////////////////////////////////////////////////////////////////////

        SQLiteErrorCode Next(
            SQLiteVirtualTableCursor cursor /* in */
            );
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            SQLiteVirtualTableCursor cursor, /* in */
            ref long rowId                   /* out */
            );

        ///////////////////////////////////////////////////////////////////////

        SQLiteErrorCode Update(

            SQLiteValue[] values, /* in */
            ref long rowId        /* in, out */
            );

        ///////////////////////////////////////////////////////////////////////

        SQLiteErrorCode Begin();



        ///////////////////////////////////////////////////////////////////////

        SQLiteErrorCode Sync();



        ///////////////////////////////////////////////////////////////////////

        SQLiteErrorCode Commit();



        ///////////////////////////////////////////////////////////////////////

        SQLiteErrorCode Rollback();



        ///////////////////////////////////////////////////////////////////////

        bool FindFunction(

            int nArg,                    /* in */
            string zName,                /* in */
            ref SQLiteFunction function, /* out */
            ref IntPtr pClientData       /* out */
            );

        ///////////////////////////////////////////////////////////////////////

        SQLiteErrorCode Rename(
            string zNew /* in */

            );

        ///////////////////////////////////////////////////////////////////////

        SQLiteErrorCode Savepoint(

            int iSavepoint /* in */
            );

        ///////////////////////////////////////////////////////////////////////

        SQLiteErrorCode Release(

            int iSavepoint /* in */
            );

        ///////////////////////////////////////////////////////////////////////

        SQLiteErrorCode RollbackTo(

            int iSavepoint /* in */
            );
    }
    #endregion

    ///////////////////////////////////////////////////////////////////////////

    #region SQLiteMarshal Class







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            SQLiteVirtualTableCursor cursor, /* in */
            ref long rowId                   /* out */
            );

        ///////////////////////////////////////////////////////////////////////

        SQLiteErrorCode Update(
            SQLiteVirtualTable table, /* in */
            SQLiteValue[] values,     /* in */
            ref long rowId            /* in, out */
            );

        ///////////////////////////////////////////////////////////////////////

        SQLiteErrorCode Begin(
            SQLiteVirtualTable table /* in */
            );

        ///////////////////////////////////////////////////////////////////////

        SQLiteErrorCode Sync(
            SQLiteVirtualTable table /* in */
            );

        ///////////////////////////////////////////////////////////////////////

        SQLiteErrorCode Commit(
            SQLiteVirtualTable table /* in */
            );

        ///////////////////////////////////////////////////////////////////////

        SQLiteErrorCode Rollback(
            SQLiteVirtualTable table /* in */
            );

        ///////////////////////////////////////////////////////////////////////

        bool FindFunction(
            SQLiteVirtualTable table,    /* in */
            int argumentCount,           /* in */
            string name,                 /* in */
            ref SQLiteFunction function, /* out */
            ref IntPtr pClientData       /* out */
            );

        ///////////////////////////////////////////////////////////////////////

        SQLiteErrorCode Rename(
            SQLiteVirtualTable table, /* in */
            string newName            /* in */
            );

        ///////////////////////////////////////////////////////////////////////

        SQLiteErrorCode Savepoint(
            SQLiteVirtualTable table, /* in */
            int savepoint             /* in */
            );

        ///////////////////////////////////////////////////////////////////////

        SQLiteErrorCode Release(
            SQLiteVirtualTable table, /* in */
            int savepoint             /* in */
            );

        ///////////////////////////////////////////////////////////////////////

        SQLiteErrorCode RollbackTo(
            SQLiteVirtualTable table, /* in */
            int savepoint             /* in */
            );
    }
    #endregion

    ///////////////////////////////////////////////////////////////////////////

    #region SQLiteMarshal Class
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            offset += IntPtr.Size;

            IntPtr pConstraintUsage = ReadIntPtr(pIndex, offset);

            offset += IntPtr.Size;

            index.Outputs.IdxNum = ReadInt32(pIndex, offset);

            offset += sizeof(int);

            index.Outputs.IdxStr = StringFromUtf8IntPtr(IntPtrForOffset(
                pIndex, offset));

            offset += IntPtr.Size;

            index.Outputs.NeedToFreeIdxStr = ReadInt32(pIndex, offset);

            offset += sizeof(int);

            index.Outputs.OrderByConsumed = ReadInt32(pIndex, offset);

            offset += sizeof(int);








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            offset += IntPtr.Size;

            IntPtr pConstraintUsage = ReadIntPtr(pIndex, offset);

            offset += IntPtr.Size;

            index.Outputs.IndexNumber = ReadInt32(pIndex, offset);

            offset += sizeof(int);

            index.Outputs.IndexString = StringFromUtf8IntPtr(IntPtrForOffset(
                pIndex, offset));

            offset += IntPtr.Size;

            index.Outputs.NeedToFreeIndexString = ReadInt32(pIndex, offset);

            offset += sizeof(int);

            index.Outputs.OrderByConsumed = ReadInt32(pIndex, offset);

            offset += sizeof(int);

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            IntPtr pConstraint = ReadIntPtr(pIndex, offset);

            offset += IntPtr.Size;

            int nOrderBy = ReadInt32(pIndex, offset);

            index = new SQLiteIndex(nConstraint, nOrderBy);

            offset += sizeof(int);

            IntPtr pOrderBy = ReadIntPtr(pIndex, offset);

            offset += IntPtr.Size;

            IntPtr pConstraintUsage = ReadIntPtr(pIndex, offset);







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            IntPtr pConstraint = ReadIntPtr(pIndex, offset);

            offset += IntPtr.Size;

            int nOrderBy = ReadInt32(pIndex, offset);



            offset += sizeof(int);

            IntPtr pOrderBy = ReadIntPtr(pIndex, offset);

            offset += IntPtr.Size;

            IntPtr pConstraintUsage = ReadIntPtr(pIndex, offset);
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        #endregion
    }
    #endregion

    ///////////////////////////////////////////////////////////////////////////

    #region SQLiteModuleBase Class

    public abstract class SQLiteModuleBase :
            ISQLiteManagedModule, ISQLiteNativeModule,  IDisposable
    {






        #region Private Data
        private UnsafeNativeMethods.sqlite3_module nativeModule;


        #endregion

        ///////////////////////////////////////////////////////////////////////

        #region Internal Methods
        internal UnsafeNativeMethods.sqlite3_module GetNativeModule()
        {







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        #endregion
    }
    #endregion

    ///////////////////////////////////////////////////////////////////////////

    #region SQLiteModuleBase Class
    /* NOT SEALED */
    public abstract class SQLiteModuleBase :
            ISQLiteManagedModule, ISQLiteNativeModule, IDisposable
    {
        #region Private Constants
        private const double DefaultCost = double.MaxValue;
        #endregion

        ///////////////////////////////////////////////////////////////////////

        #region Private Data
        private UnsafeNativeMethods.sqlite3_module nativeModule;
        private Dictionary<IntPtr, SQLiteVirtualTable> tables;
        private Dictionary<IntPtr, SQLiteVirtualTableCursor> cursors;
        #endregion

        ///////////////////////////////////////////////////////////////////////

        #region Internal Methods
        internal UnsafeNativeMethods.sqlite3_module GetNativeModule()
        {
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        #endregion

        ///////////////////////////////////////////////////////////////////////

        #region Public Constructors
        public SQLiteModuleBase(string name)
        {



            this.name = name;


        }
        #endregion

        ///////////////////////////////////////////////////////////////////////

        #region Protected Members

        protected virtual IntPtr AllocateTable()
        {
            int size = Marshal.SizeOf(typeof(
                UnsafeNativeMethods.sqlite3_vtab));

            return SQLiteMarshal.Allocate(size);
        }

        ///////////////////////////////////////////////////////////////////////





















        protected virtual void FreeTable(IntPtr pVtab)
        {
            SQLiteMarshal.Free(pVtab);
        }


        ///////////////////////////////////////////////////////////////////////


        protected virtual IntPtr AllocateCursor()
        {
            int size = Marshal.SizeOf(typeof(
                UnsafeNativeMethods.sqlite3_vtab_cursor));

            return SQLiteMarshal.Allocate(size);
        }

        ///////////////////////////////////////////////////////////////////////










        protected virtual IntPtr GetTableFromCursor(
            IntPtr pCursor
            )
        {
            if (pCursor == IntPtr.Zero)
                return IntPtr.Zero;

            return Marshal.ReadIntPtr(pCursor);
        }

        ///////////////////////////////////////////////////////////////////////

































































        protected virtual SQLiteVirtualTableCursor MarshalCursorFromIntPtr(

            IntPtr pCursor
            )
        {
            if (pCursor == IntPtr.Zero)


                return null;


            SQLiteVirtualTableCursor result =
                new SQLiteVirtualTableCursor(pCursor);









            return result;
        }

        ///////////////////////////////////////////////////////////////////////

        protected virtual IntPtr MarshalCursorToIntPtr(
            SQLiteVirtualTableCursor cursor
            )
        {
            if (cursor == null)
                return IntPtr.Zero;

            IntPtr result = IntPtr.Zero;
            bool success = false;

            try
            {
                result = AllocateCursor();

                if (result != IntPtr.Zero)



                    success = true;

            }
            finally
            {
                if (!success && (result != IntPtr.Zero))
                {
                    FreeCursor(result);
                    result = IntPtr.Zero;
                }
            }

            return result;
        }


        ///////////////////////////////////////////////////////////////////////

        protected virtual void FreeCursor(IntPtr pCursor)
        {
            SQLiteMarshal.Free(pCursor);
        }

        ///////////////////////////////////////////////////////////////////////

        protected virtual SQLiteErrorCode DeclareTable(
            SQLiteConnection connection,
            string sql,
            ref string error
            )
        {
            if (connection == null)







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        #endregion

        ///////////////////////////////////////////////////////////////////////

        #region Public Constructors
        public SQLiteModuleBase(string name)
        {
            if (name == null)
                throw new ArgumentNullException("name");

            this.name = name;
            this.tables = new Dictionary<IntPtr, SQLiteVirtualTable>();
            this.cursors = new Dictionary<IntPtr, SQLiteVirtualTableCursor>();
        }
        #endregion

        ///////////////////////////////////////////////////////////////////////

        #region Protected Members
        #region Native Table Helper Methods
        protected virtual IntPtr AllocateTable()
        {
            int size = Marshal.SizeOf(typeof(
                UnsafeNativeMethods.sqlite3_vtab));

            return SQLiteMarshal.Allocate(size);
        }

        ///////////////////////////////////////////////////////////////////////

        protected virtual void ZeroTable(IntPtr pVtab)
        {
            if (pVtab == IntPtr.Zero)
                return;

            int offset = 0;

            SQLiteMarshal.WriteIntPtr(pVtab, offset, IntPtr.Zero);

            offset += IntPtr.Size;

            SQLiteMarshal.WriteInt32(pVtab, offset, 0);

            offset += sizeof(int);

            SQLiteMarshal.WriteIntPtr(pVtab, offset, IntPtr.Zero);
        }

        ///////////////////////////////////////////////////////////////////////

        protected virtual void FreeTable(IntPtr pVtab)
        {
            SQLiteMarshal.Free(pVtab);
        }
        #endregion

        ///////////////////////////////////////////////////////////////////////

        #region Native Cursor Helper Methods
        protected virtual IntPtr AllocateCursor()
        {
            int size = Marshal.SizeOf(typeof(
                UnsafeNativeMethods.sqlite3_vtab_cursor));

            return SQLiteMarshal.Allocate(size);
        }

        ///////////////////////////////////////////////////////////////////////

        protected virtual void FreeCursor(IntPtr pCursor)
        {
            SQLiteMarshal.Free(pCursor);
        }
        #endregion

        ///////////////////////////////////////////////////////////////////////

        #region Table Lookup Methods
        protected virtual IntPtr TableFromCursor(
            IntPtr pCursor
            )
        {
            if (pCursor == IntPtr.Zero)
                return IntPtr.Zero;

            return Marshal.ReadIntPtr(pCursor);
        }

        ///////////////////////////////////////////////////////////////////////

        protected virtual SQLiteVirtualTable TableFromIntPtr(
            IntPtr pVtab
            )
        {
            if (pVtab == IntPtr.Zero)
            {
                SetTableError(pVtab, "invalid native table");
                return null;
            }

            SQLiteVirtualTable table;

            if ((tables != null) &&
                tables.TryGetValue(pVtab, out table))
            {
                return table;
            }

            SetTableError(pVtab, String.Format(
                "managed table for {0} not found", pVtab));

            return null;
        }

        ///////////////////////////////////////////////////////////////////////

        protected virtual IntPtr TableToIntPtr(
            SQLiteVirtualTable table
            )
        {
            if ((table == null) || (tables == null))
                return IntPtr.Zero;

            IntPtr pVtab = IntPtr.Zero;
            bool success = false;

            try
            {
                pVtab = AllocateTable();

                if (pVtab != IntPtr.Zero)
                {
                    ZeroTable(pVtab);
                    table.NativeHandle = pVtab;
                    tables.Add(pVtab, table);
                    success = true;
                }
            }
            finally
            {
                if (!success && (pVtab != IntPtr.Zero))
                {
                    FreeTable(pVtab);
                    pVtab = IntPtr.Zero;
                }
            }

            return pVtab;
        }
        #endregion

        ///////////////////////////////////////////////////////////////////////

        #region Cursor Lookup Methods
        protected virtual SQLiteVirtualTableCursor CursorFromIntPtr(
            IntPtr pVtab,
            IntPtr pCursor
            )
        {
            if (pCursor == IntPtr.Zero)
            {
                SetTableError(pVtab, "invalid native cursor");
                return null;
            }

            SQLiteVirtualTableCursor cursor;

            if ((cursors != null) &&
                cursors.TryGetValue(pCursor, out cursor))
            {
                return cursor;
            }

            SetTableError(pVtab, String.Format(
                "managed cursor for {0} not found", pCursor));

            return null;
        }

        ///////////////////////////////////////////////////////////////////////

        protected virtual IntPtr CursorToIntPtr(
            SQLiteVirtualTableCursor cursor
            )
        {
            if ((cursor == null) || (cursors == null))
                return IntPtr.Zero;

            IntPtr pCursor = IntPtr.Zero;
            bool success = false;

            try
            {
                pCursor = AllocateCursor();

                if (pCursor != IntPtr.Zero)
                {
                    cursor.NativeHandle = pCursor;
                    cursors.Add(pCursor, cursor);
                    success = true;
                }
            }
            finally
            {
                if (!success && (pCursor != IntPtr.Zero))
                {
                    FreeCursor(pCursor);
                    pCursor = IntPtr.Zero;
                }
            }

            return pCursor;
        }
        #endregion

        ///////////////////////////////////////////////////////////////////////





        #region Table Declaration Helper Methods


        protected virtual SQLiteErrorCode DeclareTable(
            SQLiteConnection connection,
            string sql,
            ref string error
            )
        {
            if (connection == null)
1661
1662
1663
1664
1665
1666
1667

1668
1669
1670

1671
1672
1673
1674
1675
1676
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1679
1680
1681
1682
1683
1684
1685
1686
1687
1688
1689





1690






1691

1692








































1693
1694

1695
1696
1697
1698
1699
1700
1701
            {
                error = "connection has invalid handle";
                return SQLiteErrorCode.Error;
            }

            return sqliteBase.DeclareVirtualTable(this, sql, ref error);
        }


        ///////////////////////////////////////////////////////////////////////


        protected virtual bool SetTableError(
            IntPtr pVtab,
            string error
            )
        {
            if (pVtab == IntPtr.Zero)
                return false;

            int offset = Marshal.SizeOf(typeof(
                UnsafeNativeMethods.sqlite3_module)) + sizeof(int);

            IntPtr pError = SQLiteMarshal.ReadIntPtr(pVtab, offset);

            if (pError != IntPtr.Zero)
            {
                SQLiteMarshal.Free(pError); pError = IntPtr.Zero;
                SQLiteMarshal.WriteIntPtr(pVtab, offset, pError);
            }






            SQLiteMarshal.WriteIntPtr(pVtab, offset,






                SQLiteMarshal.Utf8IntPtrFromString(error));










































            return true;
        }

        #endregion

        ///////////////////////////////////////////////////////////////////////

        #region ISQLiteNativeModule Members
        public SQLiteErrorCode xCreate(
            IntPtr pDb,







>



>








|
<
<








>
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>


>







2205
2206
2207
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2209
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2212
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2218
2219
2220
2221
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2224
2225


2226
2227
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2233
2234
2235
2236
2237
2238
2239
2240
2241
2242
2243
2244
2245
2246
2247
2248
2249
2250
2251
2252
2253
2254
2255
2256
2257
2258
2259
2260
2261
2262
2263
2264
2265
2266
2267
2268
2269
2270
2271
2272
2273
2274
2275
2276
2277
2278
2279
2280
2281
2282
2283
2284
2285
2286
2287
2288
2289
2290
2291
2292
2293
2294
2295
2296
2297
2298
            {
                error = "connection has invalid handle";
                return SQLiteErrorCode.Error;
            }

            return sqliteBase.DeclareVirtualTable(this, sql, ref error);
        }
        #endregion

        ///////////////////////////////////////////////////////////////////////

        #region Error Handling Helper Methods
        protected virtual bool SetTableError(
            IntPtr pVtab,
            string error
            )
        {
            if (pVtab == IntPtr.Zero)
                return false;

            int offset = IntPtr.Size + sizeof(int);


            IntPtr pError = SQLiteMarshal.ReadIntPtr(pVtab, offset);

            if (pError != IntPtr.Zero)
            {
                SQLiteMarshal.Free(pError); pError = IntPtr.Zero;
                SQLiteMarshal.WriteIntPtr(pVtab, offset, pError);
            }

            bool success = false;

            try
            {
                pError = SQLiteMarshal.Utf8IntPtrFromString(error);
                SQLiteMarshal.WriteIntPtr(pVtab, offset, pError);
                success = true;
            }
            finally
            {
                if (!success && (pError != IntPtr.Zero))
                {
                    SQLiteMarshal.Free(pError);
                    pError = IntPtr.Zero;
                }
            }

            return success;
        }

        ///////////////////////////////////////////////////////////////////////

        protected virtual bool SetCursorError(
            SQLiteVirtualTableCursor cursor,
            string error
            )
        {
            if (cursor == null)
                return false;

            IntPtr pCursor = cursor.NativeHandle;

            if (pCursor == IntPtr.Zero)
                return false;

            IntPtr pVtab = TableFromCursor(pCursor);

            if (pVtab == IntPtr.Zero)
                return false;

            return SetTableError(pVtab, error);
        }
        #endregion

        ///////////////////////////////////////////////////////////////////////

        #region Index Handling Helper Methods
        protected virtual bool SetDefaultEstimatedCost(
            SQLiteIndex index
            )
        {
            if ((index == null) || (index.Outputs == null))
                return false;

            index.Outputs.EstimatedCost = DefaultCost;
            return true;
        }
        #endregion
        #endregion

        ///////////////////////////////////////////////////////////////////////

        #region ISQLiteNativeModule Members
        public SQLiteErrorCode xCreate(
            IntPtr pDb,
1710
1711
1712
1713
1714
1715
1716

1717
1718
1719
1720
1721
1722


1723
1724






1725
1726
1727
1728
1729
1730
1731
            {
                string fileName = SQLiteMarshal.StringFromUtf8IntPtr(
                    UnsafeNativeMethods.sqlite3_db_filename(pDb, IntPtr.Zero));

                using (SQLiteConnection connection = new SQLiteConnection(
                        pDb, fileName, false))
                {

                    string error = null;

                    if (Create(connection, pAux,
                            SQLiteMarshal.StringArrayFromUtf8IntPtrArray(argv),
                            ref error) == SQLiteErrorCode.Ok)
                    {


                        pVtab = AllocateTable();
                        return SQLiteErrorCode.Ok;






                    }
                    else
                    {
                        pError = SQLiteMarshal.Utf8IntPtrFromString(error);
                    }
                }
            }







>




|

>
>
|
|
>
>
>
>
>
>







2307
2308
2309
2310
2311
2312
2313
2314
2315
2316
2317
2318
2319
2320
2321
2322
2323
2324
2325
2326
2327
2328
2329
2330
2331
2332
2333
2334
2335
2336
2337
            {
                string fileName = SQLiteMarshal.StringFromUtf8IntPtr(
                    UnsafeNativeMethods.sqlite3_db_filename(pDb, IntPtr.Zero));

                using (SQLiteConnection connection = new SQLiteConnection(
                        pDb, fileName, false))
                {
                    SQLiteVirtualTable table = null;
                    string error = null;

                    if (Create(connection, pAux,
                            SQLiteMarshal.StringArrayFromUtf8IntPtrArray(argv),
                            ref table, ref error) == SQLiteErrorCode.Ok)
                    {
                        if (table != null)
                        {
                            pVtab = TableToIntPtr(table);
                            return SQLiteErrorCode.Ok;
                        }
                        else
                        {
                            pError = SQLiteMarshal.Utf8IntPtrFromString(
                                "no table was created");
                        }
                    }
                    else
                    {
                        pError = SQLiteMarshal.Utf8IntPtrFromString(error);
                    }
                }
            }
1752
1753
1754
1755
1756
1757
1758

1759
1760
1761
1762
1763
1764


1765
1766






1767
1768
1769
1770
1771
1772
1773
            {
                string fileName = SQLiteMarshal.StringFromUtf8IntPtr(
                    UnsafeNativeMethods.sqlite3_db_filename(pDb, IntPtr.Zero));

                using (SQLiteConnection connection = new SQLiteConnection(
                        pDb, fileName, false))
                {

                    string error = null;

                    if (Connect(connection, pAux,
                            SQLiteMarshal.StringArrayFromUtf8IntPtrArray(argv),
                            ref error) == SQLiteErrorCode.Ok)
                    {


                        pVtab = AllocateTable();
                        return SQLiteErrorCode.Ok;






                    }
                    else
                    {
                        pError = SQLiteMarshal.Utf8IntPtrFromString(error);
                    }
                }
            }







>




|

>
>
|
|
>
>
>
>
>
>







2358
2359
2360
2361
2362
2363
2364
2365
2366
2367
2368
2369
2370
2371
2372
2373
2374
2375
2376
2377
2378
2379
2380
2381
2382
2383
2384
2385
2386
2387
2388
            {
                string fileName = SQLiteMarshal.StringFromUtf8IntPtr(
                    UnsafeNativeMethods.sqlite3_db_filename(pDb, IntPtr.Zero));

                using (SQLiteConnection connection = new SQLiteConnection(
                        pDb, fileName, false))
                {
                    SQLiteVirtualTable table = null;
                    string error = null;

                    if (Connect(connection, pAux,
                            SQLiteMarshal.StringArrayFromUtf8IntPtrArray(argv),
                            ref table, ref error) == SQLiteErrorCode.Ok)
                    {
                        if (table != null)
                        {
                            pVtab = TableToIntPtr(table);
                            return SQLiteErrorCode.Ok;
                        }
                        else
                        {
                            pError = SQLiteMarshal.Utf8IntPtrFromString(
                                "no table was created");
                        }
                    }
                    else
                    {
                        pError = SQLiteMarshal.Utf8IntPtrFromString(error);
                    }
                }
            }
1784
1785
1786
1787
1788
1789
1790




1791
1792
1793
1794
1795
1796
1797
1798

1799
1800
1801
1802
1803
1804
1805
1806
1807
1808
1809
1810
1811
1812
1813
1814
1815
1816




1817




1818


1819
1820
1821
1822
1823
1824
1825
        public SQLiteErrorCode xBestIndex(
            IntPtr pVtab,
            IntPtr pIndex
            )
        {
            try
            {




                SQLiteIndex index = null;

                SQLiteMarshal.IndexFromIntPtr(pIndex, ref index);

                if (BestIndex(index) == SQLiteErrorCode.Ok)
                {
                    SQLiteMarshal.IndexToIntPtr(index, pIndex);
                    return SQLiteErrorCode.Ok;

                }
            }
            catch (Exception e) /* NOTE: Must catch ALL. */
            {
                SetTableError(pVtab, e.ToString());
            }

            return SQLiteErrorCode.Error;
        }

        ///////////////////////////////////////////////////////////////////////

        public SQLiteErrorCode xDisconnect(
            IntPtr pVtab
            )
        {
            try
            {




                if (Disconnect() == SQLiteErrorCode.Ok)




                    return SQLiteErrorCode.Ok;


            }
            catch (Exception e) /* NOTE: Must catch ALL. */
            {
                //
                // NOTE: At this point, there is no way to report the error
                //       condition back to the caller; therefore, use the
                //       logging facility instead.







>
>
>
>
|

|

|
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>


















>
>
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>
>
>
>
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>
>







2399
2400
2401
2402
2403
2404
2405
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2407
2408
2409
2410
2411
2412
2413
2414
2415
2416
2417
2418
2419
2420
2421
2422
2423
2424
2425
2426
2427
2428
2429
2430
2431
2432
2433
2434
2435
2436
2437
2438
2439
2440
2441
2442
2443
2444
2445
2446
2447
2448
2449
2450
2451
2452
2453
2454
2455
        public SQLiteErrorCode xBestIndex(
            IntPtr pVtab,
            IntPtr pIndex
            )
        {
            try
            {
                SQLiteVirtualTable table = TableFromIntPtr(pVtab);

                if (table != null)
                {
                    SQLiteIndex index = null;

                    SQLiteMarshal.IndexFromIntPtr(pIndex, ref index);

                    if (BestIndex(table, index) == SQLiteErrorCode.Ok)
                    {
                        SQLiteMarshal.IndexToIntPtr(index, pIndex);
                        return SQLiteErrorCode.Ok;
                    }
                }
            }
            catch (Exception e) /* NOTE: Must catch ALL. */
            {
                SetTableError(pVtab, e.ToString());
            }

            return SQLiteErrorCode.Error;
        }

        ///////////////////////////////////////////////////////////////////////

        public SQLiteErrorCode xDisconnect(
            IntPtr pVtab
            )
        {
            try
            {
                SQLiteVirtualTable table = TableFromIntPtr(pVtab);

                if (table != null)
                {
                    if (Disconnect(table) == SQLiteErrorCode.Ok)
                    {
                        if (tables != null)
                            tables.Remove(pVtab);

                        return SQLiteErrorCode.Ok;
                    }
                }
            }
            catch (Exception e) /* NOTE: Must catch ALL. */
            {
                //
                // NOTE: At this point, there is no way to report the error
                //       condition back to the caller; therefore, use the
                //       logging facility instead.
1848
1849
1850
1851
1852
1853
1854




1855




1856


1857
1858
1859
1860
1861
1862
1863

        public SQLiteErrorCode xDestroy(
            IntPtr pVtab
            )
        {
            try
            {




                if (Destroy() == SQLiteErrorCode.Ok)




                    return SQLiteErrorCode.Ok;


            }
            catch (Exception e) /* NOTE: Must catch ALL. */
            {
                //
                // NOTE: At this point, there is no way to report the error
                //       condition back to the caller; therefore, use the
                //       logging facility instead.







>
>
>
>
|
>
>
>
>
|
>
>







2478
2479
2480
2481
2482
2483
2484
2485
2486
2487
2488
2489
2490
2491
2492
2493
2494
2495
2496
2497
2498
2499
2500
2501
2502
2503

        public SQLiteErrorCode xDestroy(
            IntPtr pVtab
            )
        {
            try
            {
                SQLiteVirtualTable table = TableFromIntPtr(pVtab);

                if (table != null)
                {
                    if (Destroy(table) == SQLiteErrorCode.Ok)
                    {
                        if (tables != null)
                            tables.Remove(pVtab);

                        return SQLiteErrorCode.Ok;
                    }
                }
            }
            catch (Exception e) /* NOTE: Must catch ALL. */
            {
                //
                // NOTE: At this point, there is no way to report the error
                //       condition back to the caller; therefore, use the
                //       logging facility instead.
1887
1888
1889
1890
1891
1892
1893




1894
1895
1896
1897
1898
1899
1900



1901
1902
1903
1904
1905








1906
1907
1908
1909
1910
1911
1912
1913
1914
1915
1916
1917
1918
1919
1920
1921
1922
1923
1924
1925
1926
1927
1928
1929
1930
1931
1932
1933
1934
1935


1936




1937


1938
1939
1940
1941
1942
1943
1944
        public SQLiteErrorCode xOpen(
            IntPtr pVtab,
            ref IntPtr pCursor
            )
        {
            try
            {




                SQLiteVirtualTableCursor cursor = null;

                if (Open(ref cursor) == SQLiteErrorCode.Ok)
                {
                    if (cursor != null)
                    {
                        pCursor = MarshalCursorToIntPtr(cursor);



                        return SQLiteErrorCode.Ok;
                    }
                    else
                    {
                        SetTableError(pVtab, "no cursor was created");








                    }
                }
            }
            catch (Exception e) /* NOTE: Must catch ALL. */
            {
                SetTableError(pVtab, e.ToString());
            }
            finally
            {
                FreeCursor(pCursor);
            }

            return SQLiteErrorCode.Error;
        }

        ///////////////////////////////////////////////////////////////////////

        public SQLiteErrorCode xClose(
            IntPtr pCursor
            )
        {
            IntPtr pVtab = IntPtr.Zero;

            try
            {
                pVtab = GetTableFromCursor(pCursor);

                SQLiteVirtualTableCursor cursor = MarshalCursorFromIntPtr(
                    pCursor);



                if (Close(cursor) == SQLiteErrorCode.Ok)




                    return SQLiteErrorCode.Ok;


            }
            catch (Exception e) /* NOTE: Must catch ALL. */
            {
                SetTableError(pVtab, e.ToString());
            }
            finally
            {







>
>
>
>
|

|
|
|
|
|
>
>
>
|
|
|
|
|
>
>
>
>
>
>
>
>







<
<
<
<














|

|
|

>
>
|
>
>
>
>
|
>
>







2527
2528
2529
2530
2531
2532
2533
2534
2535
2536
2537
2538
2539
2540
2541
2542
2543
2544
2545
2546
2547
2548
2549
2550
2551
2552
2553
2554
2555
2556
2557
2558
2559
2560
2561
2562
2563
2564
2565
2566
2567




2568
2569
2570
2571
2572
2573
2574
2575
2576
2577
2578
2579
2580
2581
2582
2583
2584
2585
2586
2587
2588
2589
2590
2591
2592
2593
2594
2595
2596
2597
2598
2599
2600
2601
2602
2603
        public SQLiteErrorCode xOpen(
            IntPtr pVtab,
            ref IntPtr pCursor
            )
        {
            try
            {
                SQLiteVirtualTable table = TableFromIntPtr(pVtab);

                if (table != null)
                {
                    SQLiteVirtualTableCursor cursor = null;

                    if (Open(table, ref cursor) == SQLiteErrorCode.Ok)
                    {
                        if (cursor != null)
                        {
                            pCursor = CursorToIntPtr(cursor);

                            if (pCursor != IntPtr.Zero)
                            {
                                return SQLiteErrorCode.Ok;
                            }
                            else
                            {
                                SetTableError(pVtab,
                                    "no native cursor was created");
                            }
                        }
                        else
                        {
                            SetTableError(pVtab,
                                "no managed cursor was created");
                        }
                    }
                }
            }
            catch (Exception e) /* NOTE: Must catch ALL. */
            {
                SetTableError(pVtab, e.ToString());
            }





            return SQLiteErrorCode.Error;
        }

        ///////////////////////////////////////////////////////////////////////

        public SQLiteErrorCode xClose(
            IntPtr pCursor
            )
        {
            IntPtr pVtab = IntPtr.Zero;

            try
            {
                pVtab = TableFromCursor(pCursor);

                SQLiteVirtualTableCursor cursor = CursorFromIntPtr(
                    pVtab, pCursor);

                if (cursor != null)
                {
                    if (Close(cursor) == SQLiteErrorCode.Ok)
                    {
                        if (cursors != null)
                            cursors.Remove(pCursor);

                        return SQLiteErrorCode.Ok;
                    }
                }
            }
            catch (Exception e) /* NOTE: Must catch ALL. */
            {
                SetTableError(pVtab, e.ToString());
            }
            finally
            {
1958
1959
1960
1961
1962
1963
1964
1965
1966
1967
1968
1969


1970
1971
1972

1973
1974

1975
1976
1977
1978
1979
1980
1981
1982
1983
1984
1985
1986
1987
1988
1989
1990
1991
1992
1993
1994
1995
1996
1997
1998
1999


2000
2001

2002
2003
2004
2005
2006
2007
2008
2009
2010
2011
2012
2013
2014
2015
2016
2017
2018
2019
2020
2021
2022
2023
2024
2025

2026
2027
2028
2029
2030
2031
2032
2033
            IntPtr[] argv
            )
        {
            IntPtr pVtab = IntPtr.Zero;

            try
            {
                pVtab = GetTableFromCursor(pCursor);

                SQLiteVirtualTableCursor cursor = MarshalCursorFromIntPtr(
                    pCursor);



                if (Filter(
                        cursor, idxNum, SQLiteMarshal.StringFromUtf8IntPtr(idxStr),
                        SQLiteMarshal.ValueArrayFromIntPtrArray(argv)) == SQLiteErrorCode.Ok)

                {
                    return SQLiteErrorCode.Ok;

                }
            }
            catch (Exception e) /* NOTE: Must catch ALL. */
            {
                SetTableError(pVtab, e.ToString());
            }

            return SQLiteErrorCode.Error;
        }

        ///////////////////////////////////////////////////////////////////////

        public SQLiteErrorCode xNext(
            IntPtr pCursor
            )
        {
            IntPtr pVtab = IntPtr.Zero;

            try
            {
                pVtab = GetTableFromCursor(pCursor);

                SQLiteVirtualTableCursor cursor = MarshalCursorFromIntPtr(
                    pCursor);



                if (Next(cursor) == SQLiteErrorCode.Ok)
                    return SQLiteErrorCode.Ok;

            }
            catch (Exception e) /* NOTE: Must catch ALL. */
            {
                SetTableError(pVtab, e.ToString());
            }

            return SQLiteErrorCode.Error;
        }

        ///////////////////////////////////////////////////////////////////////

        public int xEof(
            IntPtr pCursor
            )
        {
            IntPtr pVtab = IntPtr.Zero;

            try
            {
                pVtab = GetTableFromCursor(pCursor);

                SQLiteVirtualTableCursor cursor = MarshalCursorFromIntPtr(
                    pCursor);


                return Eof(cursor) ? 1 : 0;
            }
            catch (Exception e) /* NOTE: Must catch ALL. */
            {
                SetTableError(pVtab, e.ToString());
            }

            return 1;







|

|
|

>
>
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>
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|

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|

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|

|
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2617
2618
2619
2620
2621
2622
2623
2624
2625
2626
2627
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2629
2630
2631
2632
2633
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2689
2690
2691
2692
2693
2694
2695
2696
2697
2698
2699
2700
            IntPtr[] argv
            )
        {
            IntPtr pVtab = IntPtr.Zero;

            try
            {
                pVtab = TableFromCursor(pCursor);

                SQLiteVirtualTableCursor cursor = CursorFromIntPtr(
                    pVtab, pCursor);

                if (cursor != null)
                {
                    if (Filter(cursor, idxNum,
                            SQLiteMarshal.StringFromUtf8IntPtr(idxStr),
                            SQLiteMarshal.ValueArrayFromIntPtrArray(
                                argv)) == SQLiteErrorCode.Ok)
                    {
                        return SQLiteErrorCode.Ok;
                    }
                }
            }
            catch (Exception e) /* NOTE: Must catch ALL. */
            {
                SetTableError(pVtab, e.ToString());
            }

            return SQLiteErrorCode.Error;
        }

        ///////////////////////////////////////////////////////////////////////

        public SQLiteErrorCode xNext(
            IntPtr pCursor
            )
        {
            IntPtr pVtab = IntPtr.Zero;

            try
            {
                pVtab = TableFromCursor(pCursor);

                SQLiteVirtualTableCursor cursor = CursorFromIntPtr(
                    pVtab, pCursor);

                if (cursor != null)
                {
                    if (Next(cursor) == SQLiteErrorCode.Ok)
                        return SQLiteErrorCode.Ok;
                }
            }
            catch (Exception e) /* NOTE: Must catch ALL. */
            {
                SetTableError(pVtab, e.ToString());
            }

            return SQLiteErrorCode.Error;
        }

        ///////////////////////////////////////////////////////////////////////

        public int xEof(
            IntPtr pCursor
            )
        {
            IntPtr pVtab = IntPtr.Zero;

            try
            {
                pVtab = TableFromCursor(pCursor);

                SQLiteVirtualTableCursor cursor = CursorFromIntPtr(
                    pVtab, pCursor);

                if (cursor != null)
                    return Eof(cursor) ? 1 : 0;
            }
            catch (Exception e) /* NOTE: Must catch ALL. */
            {
                SetTableError(pVtab, e.ToString());
            }

            return 1;
2041
2042
2043
2044
2045
2046
2047
2048
2049
2050
2051
2052


2053
2054
2055

2056
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2059
2060
2061
2062
2063
2064
2065
2066
2067
2068
2069
2070
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2074
2075
2076
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2080

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2095
2096
2097
2098
2099
2100
2101





2102
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2104
2105

2106
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2109
2110
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2112
2113
2114
2115
2116
2117
2118
2119
2120
2121
2122



2123
2124
2125
2126
2127
2128
2129
2130
2131
2132
2133
2134
2135
2136
2137
2138
2139
2140



2141
2142
2143
2144
2145
2146
2147
2148
2149
2150
2151
2152
2153
2154
2155
2156
2157
2158



2159
2160
2161
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2164
2165
2166
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2168
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2170
2171
2172
2173
2174
2175
2176



2177
2178
2179
2180
2181
2182
2183
2184
            int index
            )
        {
            IntPtr pVtab = IntPtr.Zero;

            try
            {
                pVtab = GetTableFromCursor(pCursor);

                SQLiteVirtualTableCursor cursor = MarshalCursorFromIntPtr(
                    pCursor);



                SQLiteContext context = new SQLiteContext(pContext);

                return Column(cursor, context, index);

            }
            catch (Exception e) /* NOTE: Must catch ALL. */
            {
                SetTableError(pVtab, e.ToString());
            }

            return SQLiteErrorCode.Error;
        }

        ///////////////////////////////////////////////////////////////////////

        public SQLiteErrorCode xRowId(
            IntPtr pCursor,
            ref long rowId
            )
        {
            IntPtr pVtab = IntPtr.Zero;

            try
            {
                pVtab = GetTableFromCursor(pCursor);

                SQLiteVirtualTableCursor cursor = MarshalCursorFromIntPtr(
                    pCursor);


                return RowId(cursor, ref rowId);
            }
            catch (Exception e) /* NOTE: Must catch ALL. */
            {
                SetTableError(pVtab, e.ToString());
            }

            return SQLiteErrorCode.Error;
        }

        ///////////////////////////////////////////////////////////////////////

        public SQLiteErrorCode xUpdate(
            IntPtr pVtab,
            int nData,
            IntPtr apData,
            ref long rowId
            )
        {
            try
            {





                SQLiteValue[] values = SQLiteMarshal.ValueArrayFromSizeAndIntPtr(
                    nData, apData);

                return Update(values, ref rowId);

            }
            catch (Exception e) /* NOTE: Must catch ALL. */
            {
                SetTableError(pVtab, e.ToString());
            }

            return SQLiteErrorCode.Error;
        }

        ///////////////////////////////////////////////////////////////////////

        public SQLiteErrorCode xBegin(
            IntPtr pVtab
            )
        {
            try
            {



                return Begin();
            }
            catch (Exception e) /* NOTE: Must catch ALL. */
            {
                SetTableError(pVtab, e.ToString());
            }

            return SQLiteErrorCode.Error;
        }

        ///////////////////////////////////////////////////////////////////////

        public SQLiteErrorCode xSync(
            IntPtr pVtab
            )
        {
            try
            {



                return Sync();
            }
            catch (Exception e) /* NOTE: Must catch ALL. */
            {
                SetTableError(pVtab, e.ToString());
            }

            return SQLiteErrorCode.Error;
        }

        ///////////////////////////////////////////////////////////////////////

        public SQLiteErrorCode xCommit(
            IntPtr pVtab
            )
        {
            try
            {



                return Commit();
            }
            catch (Exception e) /* NOTE: Must catch ALL. */
            {
                SetTableError(pVtab, e.ToString());
            }

            return SQLiteErrorCode.Error;
        }

        ///////////////////////////////////////////////////////////////////////

        public SQLiteErrorCode xRollback(
            IntPtr pVtab
            )
        {
            try
            {



                return Rollback();
            }
            catch (Exception e) /* NOTE: Must catch ALL. */
            {
                SetTableError(pVtab, e.ToString());
            }

            return SQLiteErrorCode.Error;







|

|
|

>
>
|

|
>




















|

|
|

>
|




















>
>
>
>
>
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|

|
>

















>
>
>
|

















>
>
>
|

















>
>
>
|

















>
>
>
|







2708
2709
2710
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2712
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2714
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2719
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2722
2723
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2725
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2861
2862
2863
2864
2865
2866
2867
2868
2869
2870
2871
2872
2873
            int index
            )
        {
            IntPtr pVtab = IntPtr.Zero;

            try
            {
                pVtab = TableFromCursor(pCursor);

                SQLiteVirtualTableCursor cursor = CursorFromIntPtr(
                    pVtab, pCursor);

                if (cursor != null)
                {
                    SQLiteContext context = new SQLiteContext(pContext);

                    return Column(cursor, context, index);
                }
            }
            catch (Exception e) /* NOTE: Must catch ALL. */
            {
                SetTableError(pVtab, e.ToString());
            }

            return SQLiteErrorCode.Error;
        }

        ///////////////////////////////////////////////////////////////////////

        public SQLiteErrorCode xRowId(
            IntPtr pCursor,
            ref long rowId
            )
        {
            IntPtr pVtab = IntPtr.Zero;

            try
            {
                pVtab = TableFromCursor(pCursor);

                SQLiteVirtualTableCursor cursor = CursorFromIntPtr(
                    pVtab, pCursor);

                if (cursor != null)
                    return RowId(cursor, ref rowId);
            }
            catch (Exception e) /* NOTE: Must catch ALL. */
            {
                SetTableError(pVtab, e.ToString());
            }

            return SQLiteErrorCode.Error;
        }

        ///////////////////////////////////////////////////////////////////////

        public SQLiteErrorCode xUpdate(
            IntPtr pVtab,
            int nData,
            IntPtr apData,
            ref long rowId
            )
        {
            try
            {
                SQLiteVirtualTable table = TableFromIntPtr(pVtab);

                if (table != null)
                {
                    SQLiteValue[] values =
                        SQLiteMarshal.ValueArrayFromSizeAndIntPtr(
                            nData, apData);

                    return Update(table, values, ref rowId);
                }
            }
            catch (Exception e) /* NOTE: Must catch ALL. */
            {
                SetTableError(pVtab, e.ToString());
            }

            return SQLiteErrorCode.Error;
        }

        ///////////////////////////////////////////////////////////////////////

        public SQLiteErrorCode xBegin(
            IntPtr pVtab
            )
        {
            try
            {
                SQLiteVirtualTable table = TableFromIntPtr(pVtab);

                if (table != null)
                    return Begin(table);
            }
            catch (Exception e) /* NOTE: Must catch ALL. */
            {
                SetTableError(pVtab, e.ToString());
            }

            return SQLiteErrorCode.Error;
        }

        ///////////////////////////////////////////////////////////////////////

        public SQLiteErrorCode xSync(
            IntPtr pVtab
            )
        {
            try
            {
                SQLiteVirtualTable table = TableFromIntPtr(pVtab);

                if (table != null)
                    return Sync(table);
            }
            catch (Exception e) /* NOTE: Must catch ALL. */
            {
                SetTableError(pVtab, e.ToString());
            }

            return SQLiteErrorCode.Error;
        }

        ///////////////////////////////////////////////////////////////////////

        public SQLiteErrorCode xCommit(
            IntPtr pVtab
            )
        {
            try
            {
                SQLiteVirtualTable table = TableFromIntPtr(pVtab);

                if (table != null)
                    return Commit(table);
            }
            catch (Exception e) /* NOTE: Must catch ALL. */
            {
                SetTableError(pVtab, e.ToString());
            }

            return SQLiteErrorCode.Error;
        }

        ///////////////////////////////////////////////////////////////////////

        public SQLiteErrorCode xRollback(
            IntPtr pVtab
            )
        {
            try
            {
                SQLiteVirtualTable table = TableFromIntPtr(pVtab);

                if (table != null)
                    return Rollback(table);
            }
            catch (Exception e) /* NOTE: Must catch ALL. */
            {
                SetTableError(pVtab, e.ToString());
            }

            return SQLiteErrorCode.Error;
2192
2193
2194
2195
2196
2197
2198




2199
2200
2201

2202
2203
2204
2205
2206
2207
2208
2209
2210
2211
2212

2213
2214
2215
2216
2217
2218
2219
2220
2221
2222
2223
2224
2225
2226
2227
2228
2229
2230
2231
2232





2233

2234
2235
2236
2237
2238
2239
2240
2241
2242
2243
2244
2245
2246
2247
2248
2249
2250
2251



2252
2253
2254
2255
2256
2257
2258
2259
2260
2261
2262
2263
2264
2265
2266
2267
2268
2269
2270



2271
2272
2273
2274
2275
2276
2277
2278
2279
2280
2281
2282
2283
2284
2285
2286
2287
2288
2289



2290
2291
2292
2293
2294
2295
2296
2297
            IntPtr zName,
            ref SQLiteCallback callback,
            ref IntPtr pClientData
            )
        {
            try
            {




                SQLiteFunction function = null;

                if (FindFunction(

                        nArg, SQLiteMarshal.StringFromUtf8IntPtr(zName),
                        ref function, ref pClientData))
                {
                    if (function != null)
                    {
                        callback = function.ScalarCallback;
                        return 1;
                    }
                    else
                    {
                        SetTableError(pVtab, "no function was created");

                    }
                }
            }
            catch (Exception e) /* NOTE: Must catch ALL. */
            {
                SetTableError(pVtab, e.ToString());
            }

            return 0;
        }

        ///////////////////////////////////////////////////////////////////////

        public SQLiteErrorCode xRename(
            IntPtr pVtab,
            IntPtr zNew
            )
        {
            try
            {





                return Rename(SQLiteMarshal.StringFromUtf8IntPtr(zNew));

            }
            catch (Exception e) /* NOTE: Must catch ALL. */
            {
                SetTableError(pVtab, e.ToString());
            }

            return SQLiteErrorCode.Error;
        }

        ///////////////////////////////////////////////////////////////////////

        public SQLiteErrorCode xSavepoint(
            IntPtr pVtab,
            int iSavepoint
            )
        {
            try
            {



                return Savepoint(iSavepoint);
            }
            catch (Exception e) /* NOTE: Must catch ALL. */
            {
                SetTableError(pVtab, e.ToString());
            }

            return SQLiteErrorCode.Error;
        }

        ///////////////////////////////////////////////////////////////////////

        public SQLiteErrorCode xRelease(
            IntPtr pVtab,
            int iSavepoint
            )
        {
            try
            {



                return Release(iSavepoint);
            }
            catch (Exception e) /* NOTE: Must catch ALL. */
            {
                SetTableError(pVtab, e.ToString());
            }

            return SQLiteErrorCode.Error;
        }

        ///////////////////////////////////////////////////////////////////////

        public SQLiteErrorCode xRollbackTo(
            IntPtr pVtab,
            int iSavepoint
            )
        {
            try
            {



                return RollbackTo(iSavepoint);
            }
            catch (Exception e) /* NOTE: Must catch ALL. */
            {
                SetTableError(pVtab, e.ToString());
            }

            return SQLiteErrorCode.Error;







>
>
>
>
|

|
>
|
|
|
|
|
|
|
|
|
|
|
>




















>
>
>
>
>
|
>


















>
>
>
|


















>
>
>
|


















>
>
>
|







2881
2882
2883
2884
2885
2886
2887
2888
2889
2890
2891
2892
2893
2894
2895
2896
2897
2898
2899
2900
2901
2902
2903
2904
2905
2906
2907
2908
2909
2910
2911
2912
2913
2914
2915
2916
2917
2918
2919
2920
2921
2922
2923
2924
2925
2926
2927
2928
2929
2930
2931
2932
2933
2934
2935
2936
2937
2938
2939
2940
2941
2942
2943
2944
2945
2946
2947
2948
2949
2950
2951
2952
2953
2954
2955
2956
2957
2958
2959
2960
2961
2962
2963
2964
2965
2966
2967
2968
2969
2970
2971
2972
2973
2974
2975
2976
2977
2978
2979
2980
2981
2982
2983
2984
2985
2986
2987
2988
2989
2990
2991
2992
2993
2994
2995
2996
2997
2998
2999
3000
3001
3002
3003
3004
3005
3006
3007
            IntPtr zName,
            ref SQLiteCallback callback,
            ref IntPtr pClientData
            )
        {
            try
            {
                SQLiteVirtualTable table = TableFromIntPtr(pVtab);

                if (table != null)
                {
                    SQLiteFunction function = null;

                    if (FindFunction(
                            table, nArg,
                            SQLiteMarshal.StringFromUtf8IntPtr(zName),
                            ref function, ref pClientData))
                    {
                        if (function != null)
                        {
                            callback = function.ScalarCallback;
                            return 1;
                        }
                        else
                        {
                            SetTableError(pVtab, "no function was created");
                        }
                    }
                }
            }
            catch (Exception e) /* NOTE: Must catch ALL. */
            {
                SetTableError(pVtab, e.ToString());
            }

            return 0;
        }

        ///////////////////////////////////////////////////////////////////////

        public SQLiteErrorCode xRename(
            IntPtr pVtab,
            IntPtr zNew
            )
        {
            try
            {
                SQLiteVirtualTable table = TableFromIntPtr(pVtab);

                if (table != null)
                {
                    return Rename(table,
                        SQLiteMarshal.StringFromUtf8IntPtr(zNew));
                }
            }
            catch (Exception e) /* NOTE: Must catch ALL. */
            {
                SetTableError(pVtab, e.ToString());
            }

            return SQLiteErrorCode.Error;
        }

        ///////////////////////////////////////////////////////////////////////

        public SQLiteErrorCode xSavepoint(
            IntPtr pVtab,
            int iSavepoint
            )
        {
            try
            {
                SQLiteVirtualTable table = TableFromIntPtr(pVtab);

                if (table != null)
                    return Savepoint(table, iSavepoint);
            }
            catch (Exception e) /* NOTE: Must catch ALL. */
            {
                SetTableError(pVtab, e.ToString());
            }

            return SQLiteErrorCode.Error;
        }

        ///////////////////////////////////////////////////////////////////////

        public SQLiteErrorCode xRelease(
            IntPtr pVtab,
            int iSavepoint
            )
        {
            try
            {
                SQLiteVirtualTable table = TableFromIntPtr(pVtab);

                if (table != null)
                    return Release(table, iSavepoint);
            }
            catch (Exception e) /* NOTE: Must catch ALL. */
            {
                SetTableError(pVtab, e.ToString());
            }

            return SQLiteErrorCode.Error;
        }

        ///////////////////////////////////////////////////////////////////////

        public SQLiteErrorCode xRollbackTo(
            IntPtr pVtab,
            int iSavepoint
            )
        {
            try
            {
                SQLiteVirtualTable table = TableFromIntPtr(pVtab);

                if (table != null)
                    return RollbackTo(table, iSavepoint);
            }
            catch (Exception e) /* NOTE: Must catch ALL. */
            {
                SetTableError(pVtab, e.ToString());
            }

            return SQLiteErrorCode.Error;
2317
2318
2319
2320
2321
2322
2323
2324

2325
2326
2327
2328
2329
2330
2331
2332
2333

2334
2335
2336
2337
2338
2339

2340
2341
2342
2343
2344
2345


2346
2347
2348
2349


2350
2351
2352
2353

2354
2355
2356
2357
2358
2359
2360
2361
2362
2363
2364
2365
2366
2367
2368
2369
2370
2371
2372
2373
2374
2375
        }

        ///////////////////////////////////////////////////////////////////////

        public abstract SQLiteErrorCode Create(
            SQLiteConnection connection,
            IntPtr pClientData,
            string[] argv,

            ref string error
            );

        ///////////////////////////////////////////////////////////////////////

        public abstract SQLiteErrorCode Connect(
            SQLiteConnection connection,
            IntPtr pClientData,
            string[] argv,

            ref string error
            );

        ///////////////////////////////////////////////////////////////////////

        public abstract SQLiteErrorCode BestIndex(

            SQLiteIndex index
            );

        ///////////////////////////////////////////////////////////////////////

        public abstract SQLiteErrorCode Disconnect();



        ///////////////////////////////////////////////////////////////////////

        public abstract SQLiteErrorCode Destroy();



        ///////////////////////////////////////////////////////////////////////

        public abstract SQLiteErrorCode Open(

            ref SQLiteVirtualTableCursor cursor
            );

        ///////////////////////////////////////////////////////////////////////

        public abstract SQLiteErrorCode Close(
            SQLiteVirtualTableCursor cursor
            );

        ///////////////////////////////////////////////////////////////////////

        public abstract SQLiteErrorCode Filter(
            SQLiteVirtualTableCursor cursor,
            int idxNum,
            string idxStr,
            SQLiteValue[] values
            );

        ///////////////////////////////////////////////////////////////////////

        public abstract SQLiteErrorCode Next(
            SQLiteVirtualTableCursor cursor







|
>








|
>






>





|
>
>



|
>
>




>













|
|







3027
3028
3029
3030
3031
3032
3033
3034
3035
3036
3037
3038
3039
3040
3041
3042
3043
3044
3045
3046
3047
3048
3049
3050
3051
3052
3053
3054
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        }

        ///////////////////////////////////////////////////////////////////////

        public abstract SQLiteErrorCode Create(
            SQLiteConnection connection,
            IntPtr pClientData,
            string[] arguments,
            ref SQLiteVirtualTable table,
            ref string error
            );

        ///////////////////////////////////////////////////////////////////////

        public abstract SQLiteErrorCode Connect(
            SQLiteConnection connection,
            IntPtr pClientData,
            string[] arguments,
            ref SQLiteVirtualTable table,
            ref string error
            );

        ///////////////////////////////////////////////////////////////////////

        public abstract SQLiteErrorCode BestIndex(
            SQLiteVirtualTable table,
            SQLiteIndex index
            );

        ///////////////////////////////////////////////////////////////////////

        public abstract SQLiteErrorCode Disconnect(
            SQLiteVirtualTable table
            );

        ///////////////////////////////////////////////////////////////////////

        public abstract SQLiteErrorCode Destroy(
            SQLiteVirtualTable table
            );

        ///////////////////////////////////////////////////////////////////////

        public abstract SQLiteErrorCode Open(
            SQLiteVirtualTable table,
            ref SQLiteVirtualTableCursor cursor
            );

        ///////////////////////////////////////////////////////////////////////

        public abstract SQLiteErrorCode Close(
            SQLiteVirtualTableCursor cursor
            );

        ///////////////////////////////////////////////////////////////////////

        public abstract SQLiteErrorCode Filter(
            SQLiteVirtualTableCursor cursor,
            int indexNumber,
            string indexString,
            SQLiteValue[] values
            );

        ///////////////////////////////////////////////////////////////////////

        public abstract SQLiteErrorCode Next(
            SQLiteVirtualTableCursor cursor
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            SQLiteVirtualTableCursor cursor,
            ref long rowId
            );

        ///////////////////////////////////////////////////////////////////////

        public abstract SQLiteErrorCode Update(

            SQLiteValue[] values,
            ref long rowId
            );

        ///////////////////////////////////////////////////////////////////////

        public abstract SQLiteErrorCode Begin();









        ///////////////////////////////////////////////////////////////////////

        public abstract SQLiteErrorCode Sync();



        ///////////////////////////////////////////////////////////////////////

        public abstract SQLiteErrorCode Commit();

        ///////////////////////////////////////////////////////////////////////

        public abstract SQLiteErrorCode Rollback();

        ///////////////////////////////////////////////////////////////////////

        public abstract bool FindFunction(

            int nArg,
            string zName,
            ref SQLiteFunction function,
            ref IntPtr pClientData
            );

        ///////////////////////////////////////////////////////////////////////

        public abstract SQLiteErrorCode Rename(

            string zNew
            );

        ///////////////////////////////////////////////////////////////////////

        public abstract SQLiteErrorCode Savepoint(

            int iSavepoint
            );

        ///////////////////////////////////////////////////////////////////////

        public abstract SQLiteErrorCode Release(

            int iSavepoint
            );

        ///////////////////////////////////////////////////////////////////////

        public abstract SQLiteErrorCode RollbackTo(

            int iSavepoint
            );
        #endregion

        ///////////////////////////////////////////////////////////////////////

        #region IDisposable Members
        public void Dispose()







>






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            SQLiteVirtualTableCursor cursor,
            ref long rowId
            );

        ///////////////////////////////////////////////////////////////////////

        public abstract SQLiteErrorCode Update(
            SQLiteVirtualTable table,
            SQLiteValue[] values,
            ref long rowId
            );

        ///////////////////////////////////////////////////////////////////////

        public abstract SQLiteErrorCode Begin(
            SQLiteVirtualTable table
            );

        ///////////////////////////////////////////////////////////////////////

        public abstract SQLiteErrorCode Sync(
            SQLiteVirtualTable table
            );

        ///////////////////////////////////////////////////////////////////////

        public abstract SQLiteErrorCode Commit(
            SQLiteVirtualTable table
            );

        ///////////////////////////////////////////////////////////////////////

        public abstract SQLiteErrorCode Rollback(
            SQLiteVirtualTable table

            );


        ///////////////////////////////////////////////////////////////////////

        public abstract bool FindFunction(
            SQLiteVirtualTable table,
            int argumentCount,
            string name,
            ref SQLiteFunction function,
            ref IntPtr pClientData
            );

        ///////////////////////////////////////////////////////////////////////

        public abstract SQLiteErrorCode Rename(
            SQLiteVirtualTable table,
            string newName
            );

        ///////////////////////////////////////////////////////////////////////

        public abstract SQLiteErrorCode Savepoint(
            SQLiteVirtualTable table,
            int savepoint
            );

        ///////////////////////////////////////////////////////////////////////

        public abstract SQLiteErrorCode Release(
            SQLiteVirtualTable table,
            int savepoint
            );

        ///////////////////////////////////////////////////////////////////////

        public abstract SQLiteErrorCode RollbackTo(
            SQLiteVirtualTable table,
            int savepoint
            );
        #endregion

        ///////////////////////////////////////////////////////////////////////

        #region IDisposable Members
        public void Dispose()
Added System.Data.SQLite/SQLiteModuleEnumerable.cs.
























































































































































































































































































































































































































































































































































































































































































































































































































































































































































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/********************************************************
 * ADO.NET 2.0 Data Provider for SQLite Version 3.X
 * Written by Joe Mistachkin (joe@mistachkin.com)
 *
 * Released to the public domain, use at your own risk!
 ********************************************************/

using System.Collections;

namespace System.Data.SQLite
{
    #region SQLiteVirtualTableCursorEnumerable Class
    /* NOT SEALED */
    public class SQLiteVirtualTableCursorEnumerable : SQLiteVirtualTableCursor
    {
        #region Private Data
        private IEnumerator enumerator;
        private bool endOfEnumerator;
        #endregion

        ///////////////////////////////////////////////////////////////////////

        #region Public Constructors
        public SQLiteVirtualTableCursorEnumerable(
            SQLiteVirtualTable table,
            IEnumerator enumerator
            )
            : base(table)
        {
            this.enumerator = enumerator;
            this.endOfEnumerator = true;
        }
        #endregion

        ///////////////////////////////////////////////////////////////////////

        #region Public Members
        public virtual bool MoveNext()
        {
            if (enumerator == null)
                return false;

            endOfEnumerator = !enumerator.MoveNext();
            return !endOfEnumerator;
        }

        ///////////////////////////////////////////////////////////////////////

        public virtual object Current
        {
            get
            {
                if (enumerator == null)
                    return null;

                return enumerator.Current;
            }
        }

        ///////////////////////////////////////////////////////////////////////

        public virtual void Reset()
        {
            if (enumerator == null)
                return;

            enumerator.Reset();
        }

        ///////////////////////////////////////////////////////////////////////

        public virtual bool EndOfEnumerator
        {
            get { return endOfEnumerator; }
        }

        ///////////////////////////////////////////////////////////////////////

        public virtual void Close()
        {
            if (enumerator != null)
                enumerator = null;
        }
        #endregion
    }
    #endregion

    ///////////////////////////////////////////////////////////////////////////

    #region SQLiteModuleEnumerable Class
    /* NOT SEALED */
    public class SQLiteModuleEnumerable : SQLiteModuleNoop
    {
        #region Private Constants
        private static readonly string declareSql = String.Format(
            "CREATE TABLE {0}(x);", typeof(SQLiteModuleEnumerable).Name);
        #endregion

        ///////////////////////////////////////////////////////////////////////

        #region Private Data
        /// <summary>
        /// The <see cref="IEnumerable" /> instance containing the backing data
        /// for the virtual table.
        /// </summary>
        private IEnumerable collection;
        #endregion

        ///////////////////////////////////////////////////////////////////////

        #region Public Constructors
        public SQLiteModuleEnumerable(
            string name,
            IEnumerable collection
            )
            : base(name)
        {
            if (collection == null)
                throw new ArgumentNullException("collection");

            this.collection = collection;
        }
        #endregion

        ///////////////////////////////////////////////////////////////////////

        #region Protected Methods
        protected virtual SQLiteErrorCode CursorTypeMismatchError(
            SQLiteVirtualTableCursor cursor
            )
        {
            SetCursorError(cursor, "not an \"enumerable\" cursor");
            return SQLiteErrorCode.Error;
        }
        #endregion

        ///////////////////////////////////////////////////////////////////////

        #region ISQLiteManagedModule Members
        public override SQLiteErrorCode Create(
            SQLiteConnection connection,
            IntPtr pClientData,
            string[] arguments,
            ref SQLiteVirtualTable table,
            ref string error
            )
        {
            CheckDisposed();

            if (DeclareTable(
                    connection, declareSql,
                    ref error) == SQLiteErrorCode.Ok)
            {
                table = new SQLiteVirtualTable(arguments);
                return SQLiteErrorCode.Ok;
            }

            return SQLiteErrorCode.Error;
        }

        ///////////////////////////////////////////////////////////////////////

        public override SQLiteErrorCode Connect(
            SQLiteConnection connection,
            IntPtr pClientData,
            string[] arguments,
            ref SQLiteVirtualTable table,
            ref string error
            )
        {
            CheckDisposed();

            if (DeclareTable(
                    connection, declareSql,
                    ref error) == SQLiteErrorCode.Ok)
            {
                table = new SQLiteVirtualTable(arguments);
                return SQLiteErrorCode.Ok;
            }

            return SQLiteErrorCode.Error;
        }

        ///////////////////////////////////////////////////////////////////////

        public override SQLiteErrorCode BestIndex(
            SQLiteVirtualTable table,
            SQLiteIndex index
            )
        {
            CheckDisposed();

            if (!SetDefaultEstimatedCost(index))
            {
                SetTableError(table.NativeHandle,
                    "failed to set default estimated cost");

                return SQLiteErrorCode.Error;
            }

            return SQLiteErrorCode.Ok;
        }

        ///////////////////////////////////////////////////////////////////////

        public override SQLiteErrorCode Disconnect(
            SQLiteVirtualTable table
            )
        {
            CheckDisposed();

            table.Dispose();
            return SQLiteErrorCode.Ok;
        }

        ///////////////////////////////////////////////////////////////////////

        public override SQLiteErrorCode Destroy(
            SQLiteVirtualTable table
            )
        {
            CheckDisposed();

            table.Dispose();
            return SQLiteErrorCode.Ok;
        }

        ///////////////////////////////////////////////////////////////////////

        public override SQLiteErrorCode Open(
            SQLiteVirtualTable table,
            ref SQLiteVirtualTableCursor cursor
            )
        {
            CheckDisposed();

            cursor = new SQLiteVirtualTableCursorEnumerable(
                table, collection.GetEnumerator());

            return SQLiteErrorCode.Ok;
        }

        ///////////////////////////////////////////////////////////////////////

        public override SQLiteErrorCode Close(
            SQLiteVirtualTableCursor cursor
            )
        {
            CheckDisposed();

            SQLiteVirtualTableCursorEnumerable enumerableCursor =
                cursor as SQLiteVirtualTableCursorEnumerable;

            if (enumerableCursor == null)
                return CursorTypeMismatchError(cursor);

            enumerableCursor.Close();
            return SQLiteErrorCode.Ok;
        }

        ///////////////////////////////////////////////////////////////////////

        public override SQLiteErrorCode Filter(
            SQLiteVirtualTableCursor cursor,
            int indexNumber,
            string indexString,
            SQLiteValue[] values
            )
        {
            CheckDisposed();

            SQLiteVirtualTableCursorEnumerable enumerableCursor =
                cursor as SQLiteVirtualTableCursorEnumerable;

            if (enumerableCursor == null)
                return CursorTypeMismatchError(cursor);

            enumerableCursor.Filter(indexNumber, indexString, values);
            enumerableCursor.Reset(); /* NO RESULT */
            enumerableCursor.MoveNext(); /* IGNORED */

            return SQLiteErrorCode.Ok;
        }

        ///////////////////////////////////////////////////////////////////////

        public override SQLiteErrorCode Next(
            SQLiteVirtualTableCursor cursor
            )
        {
            CheckDisposed();

            SQLiteVirtualTableCursorEnumerable enumerableCursor =
                cursor as SQLiteVirtualTableCursorEnumerable;

            if (enumerableCursor == null)
                return CursorTypeMismatchError(cursor);

            enumerableCursor.MoveNext(); /* IGNORED */
            return SQLiteErrorCode.Ok;
        }

        ///////////////////////////////////////////////////////////////////////

        public override bool Eof(
            SQLiteVirtualTableCursor cursor
            )
        {
            CheckDisposed();

            SQLiteVirtualTableCursorEnumerable enumerableCursor =
                cursor as SQLiteVirtualTableCursorEnumerable;

            if (enumerableCursor == null)
            {
                CursorTypeMismatchError(cursor);
                return true;
            }

            return enumerableCursor.EndOfEnumerator;
        }

        ///////////////////////////////////////////////////////////////////////

        public override SQLiteErrorCode Column(
            SQLiteVirtualTableCursor cursor,
            SQLiteContext context,
            int index
            )
        {
            CheckDisposed();

            SQLiteVirtualTableCursorEnumerable enumerableCursor =
                cursor as SQLiteVirtualTableCursorEnumerable;

            if (enumerableCursor == null)
                return CursorTypeMismatchError(cursor);

            if (enumerableCursor.EndOfEnumerator)
            {
                context.SetNull();
                return SQLiteErrorCode.Ok;
            }

            object current = enumerableCursor.Current;

            context.SetString((current != null) ? current.ToString() : null);

            return SQLiteErrorCode.Ok;
        }

        ///////////////////////////////////////////////////////////////////////

        public override SQLiteErrorCode RowId(
            SQLiteVirtualTableCursor cursor,
            ref long rowId
            )
        {
            CheckDisposed();

            SQLiteVirtualTableCursorEnumerable enumerableCursor =
                cursor as SQLiteVirtualTableCursorEnumerable;

            if (enumerableCursor == null)
                return CursorTypeMismatchError(cursor);

            if (enumerableCursor.EndOfEnumerator)
            {
                SetCursorError(cursor, "already hit end of enumerable cursor");
                return SQLiteErrorCode.Error;
            }

            object current = enumerableCursor.Current;

            rowId = (current != null) ? current.GetHashCode() : 0;

            return SQLiteErrorCode.Ok;
        }

        ///////////////////////////////////////////////////////////////////////

        public override SQLiteErrorCode Update(
            SQLiteVirtualTable table,
            SQLiteValue[] values,
            ref long rowId
            )
        {
            CheckDisposed();

            SetTableError(table.NativeHandle, String.Format(
                "virtual table \"{0}\" is read-only", table.TableName));

            return SQLiteErrorCode.Error;
        }

        ///////////////////////////////////////////////////////////////////////

        public override SQLiteErrorCode Rename(
            SQLiteVirtualTable table,
            string newName
            )
        {
            CheckDisposed();

            if (!table.Rename(newName))
            {
                SetTableError(table.NativeHandle, String.Format(
                    "failed to rename virtual table \"{0}\" to \"{1}\"",
                    table.TableName, newName));

                return SQLiteErrorCode.Error;
            }

            return SQLiteErrorCode.Ok;
        }
        #endregion

        ///////////////////////////////////////////////////////////////////////

        #region IDisposable "Pattern" Members
        private bool disposed;
        private void CheckDisposed() /* throw */
        {
#if THROW_ON_DISPOSED
            if (disposed)
                throw new ObjectDisposedException(typeof(SQLiteModuleNoop).Name);
#endif
        }

        ///////////////////////////////////////////////////////////////////////

        protected override void Dispose(bool disposing)
        {
            try
            {
                if (!disposed)
                {
                    //if (disposing)
                    //{
                    //    ////////////////////////////////////
                    //    // dispose managed resources here...
                    //    ////////////////////////////////////
                    //}

                    //////////////////////////////////////
                    // release unmanaged resources here...
                    //////////////////////////////////////

                    disposed = true;
                }
            }
            finally
            {
                base.Dispose(disposing);
            }
        }
        #endregion
    }
    #endregion
}
Changes to System.Data.SQLite/SQLiteModuleNoop.cs.
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        ///////////////////////////////////////////////////////////////////////

        #region ISQLiteManagedModule Members
        public override SQLiteErrorCode Create(
            SQLiteConnection connection,
            IntPtr pClientData,
            string[] argv,

            ref string error
            )
        {
            CheckDisposed();

            return SQLiteErrorCode.Ok;
        }

        ///////////////////////////////////////////////////////////////////////

        public override SQLiteErrorCode Connect(
            SQLiteConnection connection,
            IntPtr pClientData,
            string[] argv,

            ref string error
            )
        {
            CheckDisposed();

            return SQLiteErrorCode.Ok;
        }

        ///////////////////////////////////////////////////////////////////////

        public override SQLiteErrorCode BestIndex(

            SQLiteIndex index
            )
        {
            CheckDisposed();

            return SQLiteErrorCode.Ok;
        }

        ///////////////////////////////////////////////////////////////////////

        public override SQLiteErrorCode Disconnect()


        {
            CheckDisposed();

            return SQLiteErrorCode.Ok;
        }

        ///////////////////////////////////////////////////////////////////////

        public override SQLiteErrorCode Destroy()


        {
            CheckDisposed();

            return SQLiteErrorCode.Ok;
        }

        ///////////////////////////////////////////////////////////////////////

        public override SQLiteErrorCode Open(

            ref SQLiteVirtualTableCursor cursor
            )
        {
            CheckDisposed();

            return SQLiteErrorCode.Ok;
        }







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        ///////////////////////////////////////////////////////////////////////

        #region ISQLiteManagedModule Members
        public override SQLiteErrorCode Create(
            SQLiteConnection connection,
            IntPtr pClientData,
            string[] arguments,
            ref SQLiteVirtualTable table,
            ref string error
            )
        {
            CheckDisposed();

            return SQLiteErrorCode.Ok;
        }

        ///////////////////////////////////////////////////////////////////////

        public override SQLiteErrorCode Connect(
            SQLiteConnection connection,
            IntPtr pClientData,
            string[] arguments,
            ref SQLiteVirtualTable table,
            ref string error
            )
        {
            CheckDisposed();

            return SQLiteErrorCode.Ok;
        }

        ///////////////////////////////////////////////////////////////////////

        public override SQLiteErrorCode BestIndex(
            SQLiteVirtualTable table,
            SQLiteIndex index
            )
        {
            CheckDisposed();

            return SQLiteErrorCode.Ok;
        }

        ///////////////////////////////////////////////////////////////////////

        public override SQLiteErrorCode Disconnect(
            SQLiteVirtualTable table
            )
        {
            CheckDisposed();

            return SQLiteErrorCode.Ok;
        }

        ///////////////////////////////////////////////////////////////////////

        public override SQLiteErrorCode Destroy(
            SQLiteVirtualTable table
            )
        {
            CheckDisposed();

            return SQLiteErrorCode.Ok;
        }

        ///////////////////////////////////////////////////////////////////////

        public override SQLiteErrorCode Open(
            SQLiteVirtualTable table,
            ref SQLiteVirtualTableCursor cursor
            )
        {
            CheckDisposed();

            return SQLiteErrorCode.Ok;
        }
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            return SQLiteErrorCode.Ok;
        }

        ///////////////////////////////////////////////////////////////////////

        public override SQLiteErrorCode Filter(
            SQLiteVirtualTableCursor cursor,
            int idxNum,
            string idxStr,
            SQLiteValue[] argv
            )
        {
            CheckDisposed();

            return SQLiteErrorCode.Ok;
        }








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            return SQLiteErrorCode.Ok;
        }

        ///////////////////////////////////////////////////////////////////////

        public override SQLiteErrorCode Filter(
            SQLiteVirtualTableCursor cursor,
            int indexNumber,
            string indexString,
            SQLiteValue[] values
            )
        {
            CheckDisposed();

            return SQLiteErrorCode.Ok;
        }

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            return SQLiteErrorCode.Ok;
        }

        ///////////////////////////////////////////////////////////////////////

        public override SQLiteErrorCode Update(

            SQLiteValue[] values,
            ref long rowId
            )
        {
            CheckDisposed();

            return SQLiteErrorCode.Ok;
        }

        ///////////////////////////////////////////////////////////////////////

        public override SQLiteErrorCode Begin()













        {
            CheckDisposed();

            return SQLiteErrorCode.Ok;
        }

        ///////////////////////////////////////////////////////////////////////

        public override SQLiteErrorCode Sync()


        {
            CheckDisposed();

            return SQLiteErrorCode.Ok;
        }

        ///////////////////////////////////////////////////////////////////////

        public override SQLiteErrorCode Commit()
        {
            CheckDisposed();

            return SQLiteErrorCode.Ok;
        }

        ///////////////////////////////////////////////////////////////////////

        public override SQLiteErrorCode Rollback()
        {
            CheckDisposed();

            return SQLiteErrorCode.Ok;
        }

        ///////////////////////////////////////////////////////////////////////

        public override bool FindFunction(

            int nArg,
            string zName,
            ref SQLiteFunction function,
            ref IntPtr pClientData
            )
        {
            CheckDisposed();

            return false;
        }

        ///////////////////////////////////////////////////////////////////////

        public override SQLiteErrorCode Rename(

            string zNew
            )
        {
            CheckDisposed();

            return SQLiteErrorCode.Ok;
        }

        ///////////////////////////////////////////////////////////////////////

        public override SQLiteErrorCode Savepoint(

            int iSavepoint
            )
        {
            CheckDisposed();

            return SQLiteErrorCode.Ok;
        }

        ///////////////////////////////////////////////////////////////////////

        public override SQLiteErrorCode Release(

            int iSavepoint
            )
        {
            CheckDisposed();

            return SQLiteErrorCode.Ok;
        }

        ///////////////////////////////////////////////////////////////////////

        public override SQLiteErrorCode RollbackTo(

            int iSavepoint
            )
        {
            CheckDisposed();

            return SQLiteErrorCode.Ok;
        }
        #endregion

        ///////////////////////////////////////////////////////////////////////

        #region IDisposable "Pattern" Members
        private bool disposed;
        private void CheckDisposed() /* throw */
        {
#if THROW_ON_DISPOSED
            if (disposed)

                throw new ObjectDisposedException(typeof(SQLiteModuleNoop).Name);


#endif
        }

        ///////////////////////////////////////////////////////////////////////

        protected override void Dispose(bool disposing)
        {







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            return SQLiteErrorCode.Ok;
        }

        ///////////////////////////////////////////////////////////////////////

        public override SQLiteErrorCode Update(
            SQLiteVirtualTable table,
            SQLiteValue[] values,
            ref long rowId
            )
        {
            CheckDisposed();

            return SQLiteErrorCode.Ok;
        }

        ///////////////////////////////////////////////////////////////////////

        public override SQLiteErrorCode Begin(
            SQLiteVirtualTable table
            )
        {
            CheckDisposed();

            return SQLiteErrorCode.Ok;
        }

        ///////////////////////////////////////////////////////////////////////

        public override SQLiteErrorCode Sync(
            SQLiteVirtualTable table
            )
        {
            CheckDisposed();

            return SQLiteErrorCode.Ok;
        }

        ///////////////////////////////////////////////////////////////////////

        public override SQLiteErrorCode Commit(
            SQLiteVirtualTable table
            )
        {
            CheckDisposed();

            return SQLiteErrorCode.Ok;
        }

        ///////////////////////////////////////////////////////////////////////

        public override SQLiteErrorCode Rollback(


            SQLiteVirtualTable table


            )



        {
            CheckDisposed();

            return SQLiteErrorCode.Ok;
        }

        ///////////////////////////////////////////////////////////////////////

        public override bool FindFunction(
            SQLiteVirtualTable table,
            int argumentCount,
            string name,
            ref SQLiteFunction function,
            ref IntPtr pClientData
            )
        {
            CheckDisposed();

            return false;
        }

        ///////////////////////////////////////////////////////////////////////

        public override SQLiteErrorCode Rename(
            SQLiteVirtualTable table,
            string newName
            )
        {
            CheckDisposed();

            return SQLiteErrorCode.Ok;
        }

        ///////////////////////////////////////////////////////////////////////

        public override SQLiteErrorCode Savepoint(
            SQLiteVirtualTable table,
            int savepoint
            )
        {
            CheckDisposed();

            return SQLiteErrorCode.Ok;
        }

        ///////////////////////////////////////////////////////////////////////

        public override SQLiteErrorCode Release(
            SQLiteVirtualTable table,
            int savepoint
            )
        {
            CheckDisposed();

            return SQLiteErrorCode.Ok;
        }

        ///////////////////////////////////////////////////////////////////////

        public override SQLiteErrorCode RollbackTo(
            SQLiteVirtualTable table,
            int savepoint
            )
        {
            CheckDisposed();

            return SQLiteErrorCode.Ok;
        }
        #endregion

        ///////////////////////////////////////////////////////////////////////

        #region IDisposable "Pattern" Members
        private bool disposed;
        private void CheckDisposed() /* throw */
        {
#if THROW_ON_DISPOSED
            if (disposed)
            {
                throw new ObjectDisposedException(typeof(
                    SQLiteModuleNoop).Name);
            }
#endif
        }

        ///////////////////////////////////////////////////////////////////////

        protected override void Dispose(bool disposing)
        {
Changes to System.Data.SQLite/System.Data.SQLite.Files.targets.
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    <Compile Include="SQLiteFactory.cs" />
    <Compile Include="SQLiteFunction.cs" />
    <Compile Include="SQLiteFunctionAttribute.cs" />
    <Compile Include="SQLiteKeyReader.cs" />
    <Compile Include="SQLiteLog.cs" />
    <Compile Include="SQLiteMetaDataCollectionNames.cs" />
    <Compile Include="SQLiteModuleBase.cs" />

    <Compile Include="SQLiteModuleNoop.cs" />
    <Compile Include="SQLiteParameter.cs" />
    <Compile Include="SQLiteParameterCollection.cs" />
    <Compile Include="SQLiteStatement.cs" />
    <Compile Include="SQLiteTransaction.cs" />
    <Compile Include="SR.Designer.cs">
      <DependentUpon>SR.resx</DependentUpon>







>







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    <Compile Include="SQLiteFactory.cs" />
    <Compile Include="SQLiteFunction.cs" />
    <Compile Include="SQLiteFunctionAttribute.cs" />
    <Compile Include="SQLiteKeyReader.cs" />
    <Compile Include="SQLiteLog.cs" />
    <Compile Include="SQLiteMetaDataCollectionNames.cs" />
    <Compile Include="SQLiteModuleBase.cs" />
    <Compile Include="SQLiteModuleEnumerable.cs" />
    <Compile Include="SQLiteModuleNoop.cs" />
    <Compile Include="SQLiteParameter.cs" />
    <Compile Include="SQLiteParameterCollection.cs" />
    <Compile Include="SQLiteStatement.cs" />
    <Compile Include="SQLiteTransaction.cs" />
    <Compile Include="SR.Designer.cs">
      <DependentUpon>SR.resx</DependentUpon>
Changes to System.Data.SQLite/UnsafeNativeMethods.cs.
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    }

    ///////////////////////////////////////////////////////////////////////////

    [StructLayout(LayoutKind.Sequential)]
    internal struct sqlite3_vtab
    {
        public sqlite3_module pModule;
        public int nRef; /* NO LONGER USED */
        public IntPtr zErrMsg;
    }

    ///////////////////////////////////////////////////////////////////////////

    [StructLayout(LayoutKind.Sequential)]
    internal struct sqlite3_vtab_cursor
    {
        public sqlite3_vtab pVTab;
    }

    ///////////////////////////////////////////////////////////////////////////

    [StructLayout(LayoutKind.Sequential)]
    internal struct sqlite3_index_constraint
    {







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    }

    ///////////////////////////////////////////////////////////////////////////

    [StructLayout(LayoutKind.Sequential)]
    internal struct sqlite3_vtab
    {
        public IntPtr pModule;
        public int nRef; /* NO LONGER USED */
        public IntPtr zErrMsg;
    }

    ///////////////////////////////////////////////////////////////////////////

    [StructLayout(LayoutKind.Sequential)]
    internal struct sqlite3_vtab_cursor
    {
        public IntPtr pVTab;
    }

    ///////////////////////////////////////////////////////////////////////////

    [StructLayout(LayoutKind.Sequential)]
    internal struct sqlite3_index_constraint
    {
Changes to Tests/vtab.eagle.
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runTest {test vtab-1.1 {virtual table support} -setup {
  setupDb [set fileName vtab-1.1.db]
} -body {
  set id [object invoke Interpreter.GetActive NextId]
  set dataSource [file join [getDatabaseDirectory] $fileName]

  set sql { \
    CREATE VIRTUAL TABLE t${id} USING vt${id}; \
  }

  unset -nocomplain results errors

  set code [compileCSharpWith [subst {
    using System;
    using System.Data.SQLite;







|







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runTest {test vtab-1.1 {virtual table support} -setup {
  setupDb [set fileName vtab-1.1.db]
} -body {
  set id [object invoke Interpreter.GetActive NextId]
  set dataSource [file join [getDatabaseDirectory] $fileName]

  set sql { \
    CREATE VIRTUAL TABLE t${id} USING mod${id}; \
  }

  unset -nocomplain results errors

  set code [compileCSharpWith [subst {
    using System;
    using System.Data.SQLite;
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        }

        ///////////////////////////////////////////////////////////////////////

        public override SQLiteErrorCode Create(
          SQLiteConnection connection,
          IntPtr pClientData,
          string\[\] argv,

          ref string error
          )
        {
          SQLiteErrorCode rc = DeclareTable(
            connection, "CREATE TABLE ignored(x);", ref error);

          if (rc != SQLiteErrorCode.Ok)
            return rc;


          return base.Create(connection, pClientData, argv, ref error);
        }
      }

      /////////////////////////////////////////////////////////////////////////

      public static class Test${id}
      {
        public static void Main()
        {
          using (SQLiteConnection connection = new SQLiteConnection(
              "Data Source=${dataSource};"))
          {
            connection.Open();
            connection.CreateModule(new SQLiteModuleTest${id}("vt${id}"));

            using (SQLiteCommand command = connection.CreateCommand())
            {
              command.CommandText = "[subst ${sql}]";
              command.ExecuteNonQuery();
            }








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        }

        ///////////////////////////////////////////////////////////////////////

        public override SQLiteErrorCode Create(
          SQLiteConnection connection,
          IntPtr pClientData,
          string\[\] arguments,
          ref SQLiteVirtualTable table,
          ref string error
          )
        {
          SQLiteErrorCode rc = DeclareTable(
            connection, "CREATE TABLE ignored(x);", ref error);

          if (rc != SQLiteErrorCode.Ok)
            return rc;

          table = new SQLiteVirtualTable(arguments);
          return SQLiteErrorCode.Ok;
        }
      }

      /////////////////////////////////////////////////////////////////////////

      public static class Test${id}
      {
        public static void Main()
        {
          using (SQLiteConnection connection = new SQLiteConnection(
              "Data Source=${dataSource};"))
          {
            connection.Open();
            connection.CreateModule(new SQLiteModuleTest${id}("mod${id}"));

            using (SQLiteCommand command = connection.CreateCommand())
            {
              command.CommandText = "[subst ${sql}]";
              command.ExecuteNonQuery();
            }

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      [expr {$code eq "Ok" ? [catch {
        object invoke _Dynamic${id}.Test${id} Main
      } result] : [set result ""]}] $result
} -cleanup {
  cleanupDb $fileName

  unset -nocomplain result code results errors sql dataSource id db fileName

} -constraints [fixConstraints {eagle monoBug28 command.sql compile.DATA SQLite\


























System.Data.SQLite}] -match regexp -result {^Ok\














































































System#CodeDom#Compiler#CompilerResults#\d+ \{\} 0 \{\}$}}



###############################################################################

runSQLiteTestEpilogue
runTestEpilogue







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      [expr {$code eq "Ok" ? [catch {
        object invoke _Dynamic${id}.Test${id} Main
      } result] : [set result ""]}] $result
} -cleanup {
  cleanupDb $fileName

  unset -nocomplain result code results errors sql dataSource id db fileName
} -constraints \
{eagle monoBug28 command.sql compile.DATA SQLite System.Data.SQLite} -match \
regexp -result {^Ok System#CodeDom#Compiler#CompilerResults#\d+ \{\} 0 \{\}$}}

###############################################################################

runTest {test vtab-1.2 {IEnumerable virtual table} -setup {
  setupDb [set fileName vtab-1.2.db]
} -body {
  set id [object invoke Interpreter.GetActive NextId]
  set dataSource [file join [getDatabaseDirectory] $fileName]

  set sql(1) { \
    CREATE VIRTUAL TABLE t${id} USING mod${id}; \
  }

  set sql(2) { \
    SELECT * FROM t${id}; \
  }

  set sql(3) { \
    UPDATE t${id} SET x = 1; \
  }

  unset -nocomplain results errors

  set code [compileCSharpWith [subst {
    using System;
    using System.Data.SQLite;
    using Eagle._Containers.Public;

    namespace _Dynamic${id}
    {
      public static class Test${id}
      {
        public static StringList GetList(params string\[\] strings)
        {
          StringList result = new StringList();

          using (SQLiteConnection connection = new SQLiteConnection(
              "Data Source=${dataSource};"))
          {
            connection.Open();

            connection.CreateModule(new SQLiteModuleEnumerable(
              "mod${id}", strings));

            using (SQLiteCommand command = connection.CreateCommand())
            {
              command.CommandText = "[subst ${sql(1)}]";
              command.ExecuteNonQuery();
            }

            using (SQLiteCommand command = connection.CreateCommand())
            {
              command.CommandText = "[subst ${sql(2)}]";

              using (SQLiteDataReader dataReader = command.ExecuteReader())
              {
                while (dataReader.Read())
                  result.Add(dataReader\[0\].ToString());
              }
            }

            using (SQLiteCommand command = connection.CreateCommand())
            {
              command.CommandText = "[subst ${sql(3)}]";

              try
              {
                command.ExecuteNonQuery();
              }
              catch (SQLiteException e)
              {
                result.Add(e.ReturnCode.ToString());
                result.Add(e.Message);
              }
            }

            connection.Close();
          }

          return result;
        }

        ///////////////////////////////////////////////////////////////////////

        public static void Main()
        {
          // do nothing.
        }
      }
    }
  }] true true true results errors [list System.Data.SQLite.dll Eagle.dll]]

  list $code $results \
      [expr {[info exists errors] ? $errors : ""}] \
      [expr {$code eq "Ok" ? [catch {
        object invoke _Dynamic${id}.Test${id} GetList one two three 4 5.0
      } result] : [set result ""]}] $result
} -cleanup {
  cleanupDb $fileName

  unset -nocomplain result code results errors sql dataSource id db fileName
} -constraints \
{eagle monoBug28 command.sql compile.DATA SQLite System.Data.SQLite} -match \
regexp -result [string map [list \n \r\n] {^Ok\
System#CodeDom#Compiler#CompilerResults#\d+ \{\} 0 \{one two three 4 5.0 Error\
\{SQL logic error or missing database
SQL logic error or missing database\}\}$}]}

###############################################################################

runSQLiteTestEpilogue
runTestEpilogue