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Overview
| Comment: | Yet more work on doc comments. |
|---|---|
| Downloads: | Tarball | ZIP archive | SQL archive |
| Timelines: | family | ancestors | descendants | both | sessions |
| Files: | files | file ages | folders |
| SHA1: |
47a190338fe5c72e8e12d944bd965f8f |
| User & Date: | mistachkin 2017-10-14 02:24:09 |
Context
|
2017-10-14
| ||
| 03:25 | Fill in doc comments for the SQLiteSession class. check-in: afe96a0b10 user: mistachkin tags: sessions | |
| 02:24 | Yet more work on doc comments. check-in: 47a190338f user: mistachkin tags: sessions | |
|
2017-10-13
| ||
| 21:01 | More work on doc comments. check-in: 3bf2ed2311 user: mistachkin tags: sessions | |
Changes
Changes to System.Data.SQLite/SQLiteSession.cs.
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return new SQLiteChangeSetIterator(iterator, false);
}
#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(SQLiteChangeSetIterator).Name);
}
#endif
}
///////////////////////////////////////////////////////////////////////
protected virtual void Dispose(bool disposing)
{
try
{
if (!disposed)
{
//if (disposing)
................................................................................
}
}
#endregion
///////////////////////////////////////////////////////////////////////
#region Destructor
~SQLiteChangeSetIterator()
{
Dispose(false);
}
#endregion
}
#endregion
................................................................................
return result;
}
#endregion
///////////////////////////////////////////////////////////////////////
#region IDisposable "Pattern" Members
private bool disposed;
private void CheckDisposed() /* throw */
{
#if THROW_ON_DISPOSED
if (disposed)
{
throw new ObjectDisposedException(
typeof(SQLiteMemoryChangeSetIterator).Name);
}
#endif
}
///////////////////////////////////////////////////////////////////////
protected override void Dispose(bool disposing)
{
//
// NOTE: Must dispose of the base class first (leaky abstraction)
// because it contains the iterator handle, which must be
// closed *prior* to freeing the underlying memory.
//
................................................................................
return result;
}
#endregion
///////////////////////////////////////////////////////////////////////
#region IDisposable "Pattern" Members
private bool disposed;
private void CheckDisposed() /* throw */
{
#if THROW_ON_DISPOSED
if (disposed)
{
throw new ObjectDisposedException(
typeof(SQLiteStreamChangeSetIterator).Name);
}
#endif
}
///////////////////////////////////////////////////////////////////////
protected override void Dispose(bool disposing)
{
try
{
if (!disposed)
{
//if (disposing)
................................................................................
#endregion
}
#endregion
///////////////////////////////////////////////////////////////////////////
#region SQLiteStreamAdapter Class
internal sealed class SQLiteStreamAdapter : IDisposable
{
#region Private Data
private Stream stream; /* EXEMPT: NOT OWNED */
private SQLiteConnectionFlags flags;
///////////////////////////////////////////////////////////////////////
private UnsafeNativeMethods.xSessionInput xInput;
private UnsafeNativeMethods.xSessionOutput xOutput;
#endregion
///////////////////////////////////////////////////////////////////////
#region Public Constructors
public SQLiteStreamAdapter(
Stream stream,
SQLiteConnectionFlags flags
)
{
this.stream = stream;
this.flags = flags;
}
#endregion
///////////////////////////////////////////////////////////////////////
#region Private Methods
private SQLiteConnectionFlags GetFlags()
{
return flags;
}
#endregion
///////////////////////////////////////////////////////////////////////
#region Public Methods
public UnsafeNativeMethods.xSessionInput GetInputDelegate()
{
CheckDisposed();
if (xInput == null)
xInput = new UnsafeNativeMethods.xSessionInput(Input);
return xInput;
}
///////////////////////////////////////////////////////////////////////
public UnsafeNativeMethods.xSessionOutput GetOutputDelegate()
{
CheckDisposed();
if (xOutput == null)
xOutput = new UnsafeNativeMethods.xSessionOutput(Output);
................................................................................
return xOutput;
}
#endregion
///////////////////////////////////////////////////////////////////////
#region Native Callback Methods
private SQLiteErrorCode Input(
IntPtr context,
IntPtr pData,
ref int nData
)
{
try
................................................................................
}
return SQLiteErrorCode.IoErr_Read;
}
///////////////////////////////////////////////////////////////////////
private SQLiteErrorCode Output(
IntPtr context,
IntPtr pData,
int nData
)
{
try
................................................................................
return SQLiteErrorCode.IoErr_Write;
}
#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(SQLiteStreamAdapter).Name);
}
#endif
}
///////////////////////////////////////////////////////////////////////
private /* protected virtual */ void Dispose(bool disposing)
{
try
{
if (!disposed)
{
if (disposing)
................................................................................
}
}
#endregion
///////////////////////////////////////////////////////////////////////
#region Destructor
~SQLiteStreamAdapter()
{
Dispose(false);
}
#endregion
}
#endregion
///////////////////////////////////////////////////////////////////////////
#region SQLiteSessionStreamManager Class
internal sealed class SQLiteSessionStreamManager : IDisposable
{
#region Private Data
private Dictionary<Stream, SQLiteStreamAdapter> streamAdapters;
private SQLiteConnectionFlags flags;
#endregion
///////////////////////////////////////////////////////////////////////
#region Public Constructors
public SQLiteSessionStreamManager(
SQLiteConnectionFlags flags
)
{
this.flags = flags;
InitializeStreamAdapters();
}
#endregion
///////////////////////////////////////////////////////////////////////
#region Private Methods
private void InitializeStreamAdapters()
{
if (streamAdapters != null)
return;
streamAdapters = new Dictionary<Stream, SQLiteStreamAdapter>();
}
///////////////////////////////////////////////////////////////////////
private void DisposeStreamAdapters()
{
if (streamAdapters == null)
return;
foreach (KeyValuePair<Stream, SQLiteStreamAdapter> pair
in streamAdapters)
................................................................................
streamAdapters = null;
}
#endregion
///////////////////////////////////////////////////////////////////////
#region Public Methods
public SQLiteStreamAdapter GetAdapter(
Stream stream
)
{
CheckDisposed();
if (stream == null)
................................................................................
return streamAdapter;
}
#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(SQLiteSessionStreamManager).Name);
}
#endif
}
///////////////////////////////////////////////////////////////////////
private /* protected virtual */ void Dispose(bool disposing)
{
try
{
if (!disposed)
{
if (disposing)
................................................................................
}
}
#endregion
///////////////////////////////////////////////////////////////////////
#region Destructor
~SQLiteSessionStreamManager()
{
Dispose(false);
}
#endregion
}
#endregion
///////////////////////////////////////////////////////////////////////////
#region SQLiteChangeGroup Class
internal sealed class SQLiteChangeGroup : ISQLiteChangeGroup
{
#region Private Data
private SQLiteSessionStreamManager streamManager;
private SQLiteConnectionFlags flags;
///////////////////////////////////////////////////////////////////////
private IntPtr changeGroup;
#endregion
///////////////////////////////////////////////////////////////////////
#region Public Constructors
public SQLiteChangeGroup(
SQLiteConnectionFlags flags
)
{
this.flags = flags;
InitializeHandle();
}
#endregion
///////////////////////////////////////////////////////////////////////
#region Private Methods
private void CheckHandle()
{
if (changeGroup == IntPtr.Zero)
throw new InvalidOperationException("change group not open");
}
///////////////////////////////////////////////////////////////////////
private void InitializeHandle()
{
if (changeGroup != IntPtr.Zero)
return;
SQLiteErrorCode rc = UnsafeNativeMethods.sqlite3changegroup_new(
ref changeGroup);
................................................................................
if (rc != SQLiteErrorCode.Ok)
throw new SQLiteException(rc, "sqlite3changegroup_new");
}
///////////////////////////////////////////////////////////////////////
private void InitializeStreamManager()
{
if (streamManager != null)
return;
streamManager = new SQLiteSessionStreamManager(flags);
}
///////////////////////////////////////////////////////////////////////
private SQLiteStreamAdapter GetStreamAdapter(
Stream stream
)
{
InitializeStreamManager();
return streamManager.GetAdapter(stream);
}
#endregion
///////////////////////////////////////////////////////////////////////
#region ISQLiteChangeGroup Members
public void AddChangeSet(
byte[] rawData
)
{
CheckDisposed();
CheckHandle();
................................................................................
pData = IntPtr.Zero;
}
}
}
///////////////////////////////////////////////////////////////////////
public void AddChangeSet(
Stream stream
)
{
CheckDisposed();
CheckHandle();
................................................................................
if (rc != SQLiteErrorCode.Ok)
throw new SQLiteException(rc, "sqlite3changegroup_add_strm");
}
///////////////////////////////////////////////////////////////////////
public void CreateChangeSet(
ref byte[] rawData
)
{
CheckDisposed();
CheckHandle();
................................................................................
pData = IntPtr.Zero;
}
}
}
///////////////////////////////////////////////////////////////////////
public void CreateChangeSet(
Stream stream
)
{
CheckDisposed();
CheckHandle();
................................................................................
throw new SQLiteException(rc, "sqlite3changegroup_output_strm");
}
#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(SQLiteChangeGroup).Name);
}
#endif
}
///////////////////////////////////////////////////////////////////////
private /* protected virtual */ void Dispose(bool disposing)
{
try
{
if (!disposed)
{
if (disposing)
................................................................................
}
}
#endregion
///////////////////////////////////////////////////////////////////////
#region Destructor
~SQLiteChangeGroup()
{
Dispose(false);
}
#endregion
}
#endregion
................................................................................
}
}
#endregion
///////////////////////////////////////////////////////////////////////
#region IDisposable "Pattern" Members
private bool disposed;
private void CheckDisposed() /* throw */
{
#if THROW_ON_DISPOSED
if (disposed)
throw new ObjectDisposedException(typeof(SQLiteSession).Name);
#endif
}
///////////////////////////////////////////////////////////////////////
protected override void Dispose(bool disposing)
{
try
{
if (!disposed)
{
if (disposing)
................................................................................
return xConflict;
}
#endregion
///////////////////////////////////////////////////////////////////////
#region IDisposable "Pattern" Members
private bool disposed;
private void CheckDisposed() /* throw */
{
#if THROW_ON_DISPOSED
if (disposed)
{
throw new ObjectDisposedException(
typeof(SQLiteChangeSetBase).Name);
}
#endif
}
///////////////////////////////////////////////////////////////////////
protected override void Dispose(bool disposing)
{
try
{
if (!disposed)
{
if (disposing)
................................................................................
return GetEnumerator();
}
#endregion
///////////////////////////////////////////////////////////////////////
#region IDisposable "Pattern" Members
private bool disposed;
private void CheckDisposed() /* throw */
{
#if THROW_ON_DISPOSED
if (disposed)
{
throw new ObjectDisposedException(
typeof(SQLiteMemoryChangeSet).Name);
}
#endif
}
///////////////////////////////////////////////////////////////////////
protected override void Dispose(bool disposing)
{
try
{
if (!disposed)
{
if (disposing)
................................................................................
return GetEnumerator();
}
#endregion
///////////////////////////////////////////////////////////////////////
#region IDisposable "Pattern" Members
private bool disposed;
private void CheckDisposed() /* throw */
{
#if THROW_ON_DISPOSED
if (disposed)
{
throw new ObjectDisposedException(
typeof(SQLiteStreamChangeSet).Name);
}
#endif
}
///////////////////////////////////////////////////////////////////////
protected override void Dispose(bool disposing)
{
try
{
if (!disposed)
{
if (disposing)
................................................................................
throw new NotImplementedException();
}
#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(SQLiteChangeSetEnumerator).Name);
}
#endif
}
///////////////////////////////////////////////////////////////////////
protected virtual void Dispose(bool disposing)
{
try
{
if (!disposed)
{
if (disposing)
................................................................................
}
}
#endregion
///////////////////////////////////////////////////////////////////////
#region Destructor
~SQLiteChangeSetEnumerator()
{
Dispose(false);
}
#endregion
}
#endregion
................................................................................
ResetIterator(SQLiteMemoryChangeSetIterator.Create(rawData));
}
#endregion
///////////////////////////////////////////////////////////////////////
#region IDisposable "Pattern" Members
private bool disposed;
private void CheckDisposed() /* throw */
{
#if THROW_ON_DISPOSED
if (disposed)
{
throw new ObjectDisposedException(
typeof(SQLiteMemoryChangeSetEnumerator).Name);
}
#endif
}
///////////////////////////////////////////////////////////////////////
protected override void Dispose(bool disposing)
{
try
{
if (!disposed)
{
if (disposing)
................................................................................
// do nothing.
}
#endregion
///////////////////////////////////////////////////////////////////////
#region IDisposable "Pattern" Members
private bool disposed;
private void CheckDisposed() /* throw */
{
#if THROW_ON_DISPOSED
if (disposed)
{
throw new ObjectDisposedException(
typeof(SQLiteStreamChangeSetEnumerator).Name);
}
#endif
}
///////////////////////////////////////////////////////////////////////
protected override void Dispose(bool disposing)
{
try
{
//if (!disposed)
//{
// if (disposing)
................................................................................
return SQLiteValue.FromIntPtr(pValue);
}
#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(SQLiteChangeSetMetadataItem).Name);
}
#endif
}
///////////////////////////////////////////////////////////////////////
private /* protected virtual */ void Dispose(bool disposing)
{
try
{
if (!disposed)
{
if (disposing)
................................................................................
}
}
#endregion
///////////////////////////////////////////////////////////////////////
#region Destructor
~SQLiteChangeSetMetadataItem()
{
Dispose(false);
}
#endregion
}
#endregion
}
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return new SQLiteChangeSetIterator(iterator, false);
}
#endregion
///////////////////////////////////////////////////////////////////////
#region IDisposable Members
/// <summary>
/// Disposes of this object instance.
/// </summary>
public void Dispose()
{
Dispose(true);
GC.SuppressFinalize(this);
}
#endregion
///////////////////////////////////////////////////////////////////////
#region IDisposable "Pattern" Members
/// <summary>
/// Non-zero if this object instance has been disposed.
/// </summary>
private bool disposed;
/// <summary>
/// Throws an exception if this object instance has been disposed.
/// </summary>
private void CheckDisposed() /* throw */
{
#if THROW_ON_DISPOSED
if (disposed)
{
throw new ObjectDisposedException(
typeof(SQLiteChangeSetIterator).Name);
}
#endif
}
///////////////////////////////////////////////////////////////////////
/// <summary>
/// Disposes or finalizes this object instance.
/// </summary>
/// <param name="disposing">
/// Non-zero if this object is being disposed; otherwise, this object
/// is being finalized.
/// </param>
protected virtual void Dispose(bool disposing)
{
try
{
if (!disposed)
{
//if (disposing)
................................................................................
}
}
#endregion
///////////////////////////////////////////////////////////////////////
#region Destructor
/// <summary>
/// Finalizes this object instance.
/// </summary>
~SQLiteChangeSetIterator()
{
Dispose(false);
}
#endregion
}
#endregion
................................................................................
return result;
}
#endregion
///////////////////////////////////////////////////////////////////////
#region IDisposable "Pattern" Members
/// <summary>
/// Non-zero if this object instance has been disposed.
/// </summary>
private bool disposed;
/// <summary>
/// Throws an exception if this object instance has been disposed.
/// </summary>
private void CheckDisposed() /* throw */
{
#if THROW_ON_DISPOSED
if (disposed)
{
throw new ObjectDisposedException(
typeof(SQLiteMemoryChangeSetIterator).Name);
}
#endif
}
///////////////////////////////////////////////////////////////////////
/// <summary>
/// Disposes or finalizes this object instance.
/// </summary>
/// <param name="disposing">
/// Non-zero if this object is being disposed; otherwise, this object
/// is being finalized.
/// </param>
protected override void Dispose(bool disposing)
{
//
// NOTE: Must dispose of the base class first (leaky abstraction)
// because it contains the iterator handle, which must be
// closed *prior* to freeing the underlying memory.
//
................................................................................
return result;
}
#endregion
///////////////////////////////////////////////////////////////////////
#region IDisposable "Pattern" Members
/// <summary>
/// Non-zero if this object instance has been disposed.
/// </summary>
private bool disposed;
/// <summary>
/// Throws an exception if this object instance has been disposed.
/// </summary>
private void CheckDisposed() /* throw */
{
#if THROW_ON_DISPOSED
if (disposed)
{
throw new ObjectDisposedException(
typeof(SQLiteStreamChangeSetIterator).Name);
}
#endif
}
///////////////////////////////////////////////////////////////////////
/// <summary>
/// Disposes or finalizes this object instance.
/// </summary>
/// <param name="disposing">
/// Non-zero if this object is being disposed; otherwise, this object
/// is being finalized.
/// </param>
protected override void Dispose(bool disposing)
{
try
{
if (!disposed)
{
//if (disposing)
................................................................................
#endregion
}
#endregion
///////////////////////////////////////////////////////////////////////////
#region SQLiteStreamAdapter Class
/// <summary>
/// This class is used to act as a bridge between a <see cref="Stream" />
/// instance and the delegates used with the native streaming API.
/// </summary>
internal sealed class SQLiteStreamAdapter : IDisposable
{
#region Private Data
/// <summary>
/// The managed stream instance used to in order to service the native
/// delegates for both input and output.
/// </summary>
private Stream stream;
/// <summary>
/// The flags associated with the connection.
/// </summary>
private SQLiteConnectionFlags flags;
///////////////////////////////////////////////////////////////////////
/// <summary>
/// The delegate used to provide input to the native streaming API.
/// It will be null -OR- point to the <see cref="Input" /> method.
/// method.
/// </summary>
private UnsafeNativeMethods.xSessionInput xInput;
/// <summary>
/// The delegate used to provide output to the native streaming API.
/// It will be null -OR- point to the <see cref="Output" /> method.
/// </summary>
private UnsafeNativeMethods.xSessionOutput xOutput;
#endregion
///////////////////////////////////////////////////////////////////////
#region Public Constructors
/// <summary>
/// Constructs a new instance of this class using the specified managed
/// stream and connection flags.
/// </summary>
/// <param name="stream">
/// The managed stream instance to be used in order to service the
/// native delegates for both input and output.
/// </param>
/// <param name="flags">
/// The flags associated with the parent connection.
/// </param>
public SQLiteStreamAdapter(
Stream stream,
SQLiteConnectionFlags flags
)
{
this.stream = stream;
this.flags = flags;
}
#endregion
///////////////////////////////////////////////////////////////////////
#region Private Methods
/// <summary>
/// Queries and returns the flags associated with the connection for
/// this instance.
/// </summary>
/// <returns>
/// The <see cref="SQLiteConnectionFlags" /> value. There is no return
/// value reserved to indicate an error.
/// </returns>
private SQLiteConnectionFlags GetFlags()
{
return flags;
}
#endregion
///////////////////////////////////////////////////////////////////////
#region Public Methods
/// <summary>
/// Returns a delegate that wraps the <see cref="Input" /> method,
/// creating it first if necessary.
/// </summary>
/// <returns>
/// A delegate that refers to the <see cref="Input" /> method.
/// </returns>
public UnsafeNativeMethods.xSessionInput GetInputDelegate()
{
CheckDisposed();
if (xInput == null)
xInput = new UnsafeNativeMethods.xSessionInput(Input);
return xInput;
}
///////////////////////////////////////////////////////////////////////
/// <summary>
/// Returns a delegate that wraps the <see cref="Output" /> method,
/// creating it first if necessary.
/// </summary>
/// <returns>
/// A delegate that refers to the <see cref="Output" /> method.
/// </returns>
public UnsafeNativeMethods.xSessionOutput GetOutputDelegate()
{
CheckDisposed();
if (xOutput == null)
xOutput = new UnsafeNativeMethods.xSessionOutput(Output);
................................................................................
return xOutput;
}
#endregion
///////////////////////////////////////////////////////////////////////
#region Native Callback Methods
/// <summary>
/// This method attempts to read <paramref name="nData" /> bytes from
/// the managed stream, writing them to the <paramref name="pData"/>
/// buffer.
/// </summary>
/// <param name="context">
/// Optional extra context information. Currently, this will always
/// have a value of <see cref="IntPtr.Zero" />.
/// </param>
/// <param name="pData">
/// A preallocated native buffer to receive the requested input bytes.
/// It must be at least <see cref="nData" /> bytes in size.
/// </param>
/// <param name="nData">
/// Upon entry, the number of bytes to read. Upon exit, the number of
/// bytes actually read. This value may be zero upon exit.
/// </param>
/// <returns>
/// The value <see cref="SQLiteErrorCode.Ok" /> upon success -OR- an
/// appropriate error code upon failure.
/// </returns>
private SQLiteErrorCode Input(
IntPtr context,
IntPtr pData,
ref int nData
)
{
try
................................................................................
}
return SQLiteErrorCode.IoErr_Read;
}
///////////////////////////////////////////////////////////////////////
/// <summary>
/// This method attempts to write <paramref name="nData" /> bytes to
/// the managed stream, reading them from the <paramref name="pData"/>
/// buffer.
/// </summary>
/// <param name="context">
/// Optional extra context information. Currently, this will always
/// have a value of <see cref="IntPtr.Zero" />.
/// </param>
/// <param name="pData">
/// A preallocated native buffer containing the requested output
/// bytes. It must be at least <see cref="nData" /> bytes in size.
/// </param>
/// <param name="nData">
/// The number of bytes to write.
/// </param>
/// <returns>
/// The value <see cref="SQLiteErrorCode.Ok" /> upon success -OR- an
/// appropriate error code upon failure.
/// </returns>
private SQLiteErrorCode Output(
IntPtr context,
IntPtr pData,
int nData
)
{
try
................................................................................
return SQLiteErrorCode.IoErr_Write;
}
#endregion
///////////////////////////////////////////////////////////////////////
#region IDisposable Members
/// <summary>
/// Disposes of this object instance.
/// </summary>
public void Dispose()
{
Dispose(true);
GC.SuppressFinalize(this);
}
#endregion
///////////////////////////////////////////////////////////////////////
#region IDisposable "Pattern" Members
/// <summary>
/// Non-zero if this object instance has been disposed.
/// </summary>
private bool disposed;
/// <summary>
/// Throws an exception if this object instance has been disposed.
/// </summary>
private void CheckDisposed() /* throw */
{
#if THROW_ON_DISPOSED
if (disposed)
{
throw new ObjectDisposedException(
typeof(SQLiteStreamAdapter).Name);
}
#endif
}
///////////////////////////////////////////////////////////////////////
/// <summary>
/// Disposes or finalizes this object instance.
/// </summary>
/// <param name="disposing">
/// Non-zero if this object is being disposed; otherwise, this object
/// is being finalized.
/// </param>
private /* protected virtual */ void Dispose(bool disposing)
{
try
{
if (!disposed)
{
if (disposing)
................................................................................
}
}
#endregion
///////////////////////////////////////////////////////////////////////
#region Destructor
/// <summary>
/// Finalizes this object instance.
/// </summary>
~SQLiteStreamAdapter()
{
Dispose(false);
}
#endregion
}
#endregion
///////////////////////////////////////////////////////////////////////////
#region SQLiteSessionStreamManager Class
/// <summary>
/// This class manages a collection of <see cref="SQLiteStreamAdapter"/>
/// instances. When used, it takes responsibility for creating, returning,
/// and disposing of its <see cref="SQLiteStreamAdapter"/> instances.
/// </summary>
internal sealed class SQLiteSessionStreamManager : IDisposable
{
#region Private Data
/// <summary>
/// The managed collection of <see cref="SQLiteStreamAdapter" />
/// instances, keyed by their associated <see cref="Stream" />
/// instance.
/// </summary>
private Dictionary<Stream, SQLiteStreamAdapter> streamAdapters;
/// <summary>
/// The flags associated with the connection.
/// </summary>
private SQLiteConnectionFlags flags;
#endregion
///////////////////////////////////////////////////////////////////////
#region Public Constructors
/// <summary>
/// Constructs a new instance of this class using the specified
/// connection flags.
/// </summary>
/// <param name="flags">
/// The flags associated with the parent connection.
/// </param>
public SQLiteSessionStreamManager(
SQLiteConnectionFlags flags
)
{
this.flags = flags;
InitializeStreamAdapters();
}
#endregion
///////////////////////////////////////////////////////////////////////
#region Private Methods
/// <summary>
/// Makes sure the collection of <see cref="SQLiteStreamAdapter" />
/// is created.
/// </summary>
private void InitializeStreamAdapters()
{
if (streamAdapters != null)
return;
streamAdapters = new Dictionary<Stream, SQLiteStreamAdapter>();
}
///////////////////////////////////////////////////////////////////////
/// <summary>
/// Makes sure the collection of <see cref="SQLiteStreamAdapter" />
/// is disposed.
/// </summary>
private void DisposeStreamAdapters()
{
if (streamAdapters == null)
return;
foreach (KeyValuePair<Stream, SQLiteStreamAdapter> pair
in streamAdapters)
................................................................................
streamAdapters = null;
}
#endregion
///////////////////////////////////////////////////////////////////////
#region Public Methods
/// <summary>
/// Attempts to return a <see cref="SQLiteStreamAdapter" /> instance
/// suitable for the specified <see cref="Stream" />.
/// </summary>
/// <param name="stream">
/// The <see cref="Stream" /> instance. If this value is null, a null
/// value will be returned.
/// </param>
/// <returns>
/// A <see cref="SQLiteStreamAdapter" /> instance. Typically, these
/// are always freshly created; however, this method is designed to
/// return the existing <see cref="SQLiteStreamAdapter" /> instance
/// associated with the specified stream, should one exist.
/// </returns>
public SQLiteStreamAdapter GetAdapter(
Stream stream
)
{
CheckDisposed();
if (stream == null)
................................................................................
return streamAdapter;
}
#endregion
///////////////////////////////////////////////////////////////////////
#region IDisposable Members
/// <summary>
/// Disposes of this object instance.
/// </summary>
public void Dispose()
{
Dispose(true);
GC.SuppressFinalize(this);
}
#endregion
///////////////////////////////////////////////////////////////////////
#region IDisposable "Pattern" Members
/// <summary>
/// Non-zero if this object instance has been disposed.
/// </summary>
private bool disposed;
/// <summary>
/// Throws an exception if this object instance has been disposed.
/// </summary>
private void CheckDisposed() /* throw */
{
#if THROW_ON_DISPOSED
if (disposed)
{
throw new ObjectDisposedException(
typeof(SQLiteSessionStreamManager).Name);
}
#endif
}
///////////////////////////////////////////////////////////////////////
/// <summary>
/// Disposes or finalizes this object instance.
/// </summary>
/// <param name="disposing">
/// Non-zero if this object is being disposed; otherwise, this object
/// is being finalized.
/// </param>
private /* protected virtual */ void Dispose(bool disposing)
{
try
{
if (!disposed)
{
if (disposing)
................................................................................
}
}
#endregion
///////////////////////////////////////////////////////////////////////
#region Destructor
/// <summary>
/// Finalizes this object instance.
/// </summary>
~SQLiteSessionStreamManager()
{
Dispose(false);
}
#endregion
}
#endregion
///////////////////////////////////////////////////////////////////////////
#region SQLiteChangeGroup Class
/// <summary>
/// This class represents a group of change sets (or patch sets).
/// </summary>
internal sealed class SQLiteChangeGroup : ISQLiteChangeGroup
{
#region Private Data
/// <summary>
/// The <see cref="SQLiteSessionStreamManager" /> instance associated
/// with this change group.
/// </summary>
private SQLiteSessionStreamManager streamManager;
/// <summary>
/// The flags associated with the connection.
/// </summary>
private SQLiteConnectionFlags flags;
///////////////////////////////////////////////////////////////////////
/// <summary>
/// The native handle for this change group. This will be deleted when
/// this instance is disposed or finalized.
/// </summary>
private IntPtr changeGroup;
#endregion
///////////////////////////////////////////////////////////////////////
#region Public Constructors
/// <summary>
/// Constructs a new instance of this class using the specified
/// connection flags.
/// </summary>
/// <param name="flags">
/// The flags associated with the parent connection.
/// </param>
public SQLiteChangeGroup(
SQLiteConnectionFlags flags
)
{
this.flags = flags;
InitializeHandle();
}
#endregion
///////////////////////////////////////////////////////////////////////
#region Private Methods
/// <summary>
/// Throws an exception if the native change group handle is invalid.
/// </summary>
private void CheckHandle()
{
if (changeGroup == IntPtr.Zero)
throw new InvalidOperationException("change group not open");
}
///////////////////////////////////////////////////////////////////////
/// <summary>
/// Makes sure the native change group handle is valid, creating it if
/// necessary.
/// </summary>
private void InitializeHandle()
{
if (changeGroup != IntPtr.Zero)
return;
SQLiteErrorCode rc = UnsafeNativeMethods.sqlite3changegroup_new(
ref changeGroup);
................................................................................
if (rc != SQLiteErrorCode.Ok)
throw new SQLiteException(rc, "sqlite3changegroup_new");
}
///////////////////////////////////////////////////////////////////////
/// <summary>
/// Makes sure the <see cref="SQLiteSessionStreamManager" /> instance
/// is available, creating it if necessary.
/// </summary>
private void InitializeStreamManager()
{
if (streamManager != null)
return;
streamManager = new SQLiteSessionStreamManager(flags);
}
///////////////////////////////////////////////////////////////////////
/// <summary>
/// Attempts to return a <see cref="SQLiteStreamAdapter" /> instance
/// suitable for the specified <see cref="Stream" />.
/// </summary>
/// <param name="stream">
/// The <see cref="Stream" /> instance. If this value is null, a null
/// value will be returned.
/// </param>
/// <returns>
/// A <see cref="SQLiteStreamAdapter" /> instance. Typically, these
/// are always freshly created; however, this method is designed to
/// return the existing <see cref="SQLiteStreamAdapter" /> instance
/// associated with the specified stream, should one exist.
/// </returns>
private SQLiteStreamAdapter GetStreamAdapter(
Stream stream
)
{
InitializeStreamManager();
return streamManager.GetAdapter(stream);
}
#endregion
///////////////////////////////////////////////////////////////////////
#region ISQLiteChangeGroup Members
/// <summary>
/// Attempts to add a change set (or patch set) to this change group
/// instance. The underlying data must be contained entirely within
/// the <paramref name="rawData" /> byte array.
/// </summary>
/// <param name="rawData">
/// The raw byte data for the specified change set (or patch set).
/// </param>
public void AddChangeSet(
byte[] rawData
)
{
CheckDisposed();
CheckHandle();
................................................................................
pData = IntPtr.Zero;
}
}
}
///////////////////////////////////////////////////////////////////////
/// <summary>
/// Attempts to add a change set (or patch set) to this change group
/// instance. The underlying data will be read from the specified
/// <see cref="Stream" />.
/// </summary>
/// <param name="stream">
/// The <see cref="Stream" /> instance containing the raw change set
/// (or patch set) data to read.
/// </param>
public void AddChangeSet(
Stream stream
)
{
CheckDisposed();
CheckHandle();
................................................................................
if (rc != SQLiteErrorCode.Ok)
throw new SQLiteException(rc, "sqlite3changegroup_add_strm");
}
///////////////////////////////////////////////////////////////////////
/// <summary>
/// Attempts to create and return, via <paramref name="rawData" />, the
/// combined set of changes represented by this change group instance.
/// </summary>
/// <param name="rawData">
/// Upon success, this will contain the raw byte data for all the
/// changes in this change group instance.
/// </param>
public void CreateChangeSet(
ref byte[] rawData
)
{
CheckDisposed();
CheckHandle();
................................................................................
pData = IntPtr.Zero;
}
}
}
///////////////////////////////////////////////////////////////////////
/// <summary>
/// Attempts to create and write, via <paramref name="stream" />, the
/// combined set of changes represented by this change group instance.
/// </summary>
/// <param name="stream">
/// Upon success, the raw byte data for all the changes in this change
/// group instance will be written to this <see cref="Stream" />.
/// </param>
public void CreateChangeSet(
Stream stream
)
{
CheckDisposed();
CheckHandle();
................................................................................
throw new SQLiteException(rc, "sqlite3changegroup_output_strm");
}
#endregion
///////////////////////////////////////////////////////////////////////
#region IDisposable Members
/// <summary>
/// Disposes of this object instance.
/// </summary>
public void Dispose()
{
Dispose(true);
GC.SuppressFinalize(this);
}
#endregion
///////////////////////////////////////////////////////////////////////
#region IDisposable "Pattern" Members
/// <summary>
/// Non-zero if this object instance has been disposed.
/// </summary>
private bool disposed;
/// <summary>
/// Throws an exception if this object instance has been disposed.
/// </summary>
private void CheckDisposed() /* throw */
{
#if THROW_ON_DISPOSED
if (disposed)
{
throw new ObjectDisposedException(
typeof(SQLiteChangeGroup).Name);
}
#endif
}
///////////////////////////////////////////////////////////////////////
/// <summary>
/// Disposes or finalizes this object instance.
/// </summary>
/// <param name="disposing">
/// Non-zero if this object is being disposed; otherwise, this object
/// is being finalized.
/// </param>
private /* protected virtual */ void Dispose(bool disposing)
{
try
{
if (!disposed)
{
if (disposing)
................................................................................
}
}
#endregion
///////////////////////////////////////////////////////////////////////
#region Destructor
/// <summary>
/// Finalizes this object instance.
/// </summary>
~SQLiteChangeGroup()
{
Dispose(false);
}
#endregion
}
#endregion
................................................................................
}
}
#endregion
///////////////////////////////////////////////////////////////////////
#region IDisposable "Pattern" Members
/// <summary>
/// Non-zero if this object instance has been disposed.
/// </summary>
private bool disposed;
/// <summary>
/// Throws an exception if this object instance has been disposed.
/// </summary>
private void CheckDisposed() /* throw */
{
#if THROW_ON_DISPOSED
if (disposed)
throw new ObjectDisposedException(typeof(SQLiteSession).Name);
#endif
}
///////////////////////////////////////////////////////////////////////
/// <summary>
/// Disposes or finalizes this object instance.
/// </summary>
/// <param name="disposing">
/// Non-zero if this object is being disposed; otherwise, this object
/// is being finalized.
/// </param>
protected override void Dispose(bool disposing)
{
try
{
if (!disposed)
{
if (disposing)
................................................................................
return xConflict;
}
#endregion
///////////////////////////////////////////////////////////////////////
#region IDisposable "Pattern" Members
/// <summary>
/// Non-zero if this object instance has been disposed.
/// </summary>
private bool disposed;
/// <summary>
/// Throws an exception if this object instance has been disposed.
/// </summary>
private void CheckDisposed() /* throw */
{
#if THROW_ON_DISPOSED
if (disposed)
{
throw new ObjectDisposedException(
typeof(SQLiteChangeSetBase).Name);
}
#endif
}
///////////////////////////////////////////////////////////////////////
/// <summary>
/// Disposes or finalizes this object instance.
/// </summary>
/// <param name="disposing">
/// Non-zero if this object is being disposed; otherwise, this object
/// is being finalized.
/// </param>
protected override void Dispose(bool disposing)
{
try
{
if (!disposed)
{
if (disposing)
................................................................................
return GetEnumerator();
}
#endregion
///////////////////////////////////////////////////////////////////////
#region IDisposable "Pattern" Members
/// <summary>
/// Non-zero if this object instance has been disposed.
/// </summary>
private bool disposed;
/// <summary>
/// Throws an exception if this object instance has been disposed.
/// </summary>
private void CheckDisposed() /* throw */
{
#if THROW_ON_DISPOSED
if (disposed)
{
throw new ObjectDisposedException(
typeof(SQLiteMemoryChangeSet).Name);
}
#endif
}
///////////////////////////////////////////////////////////////////////
/// <summary>
/// Disposes or finalizes this object instance.
/// </summary>
/// <param name="disposing">
/// Non-zero if this object is being disposed; otherwise, this object
/// is being finalized.
/// </param>
protected override void Dispose(bool disposing)
{
try
{
if (!disposed)
{
if (disposing)
................................................................................
return GetEnumerator();
}
#endregion
///////////////////////////////////////////////////////////////////////
#region IDisposable "Pattern" Members
/// <summary>
/// Non-zero if this object instance has been disposed.
/// </summary>
private bool disposed;
/// <summary>
/// Throws an exception if this object instance has been disposed.
/// </summary>
private void CheckDisposed() /* throw */
{
#if THROW_ON_DISPOSED
if (disposed)
{
throw new ObjectDisposedException(
typeof(SQLiteStreamChangeSet).Name);
}
#endif
}
///////////////////////////////////////////////////////////////////////
/// <summary>
/// Disposes or finalizes this object instance.
/// </summary>
/// <param name="disposing">
/// Non-zero if this object is being disposed; otherwise, this object
/// is being finalized.
/// </param>
protected override void Dispose(bool disposing)
{
try
{
if (!disposed)
{
if (disposing)
................................................................................
throw new NotImplementedException();
}
#endregion
///////////////////////////////////////////////////////////////////////
#region IDisposable Members
/// <summary>
/// Disposes of this object instance.
/// </summary>
public void Dispose()
{
Dispose(true);
GC.SuppressFinalize(this);
}
#endregion
///////////////////////////////////////////////////////////////////////
#region IDisposable "Pattern" Members
/// <summary>
/// Non-zero if this object instance has been disposed.
/// </summary>
private bool disposed;
/// <summary>
/// Throws an exception if this object instance has been disposed.
/// </summary>
private void CheckDisposed() /* throw */
{
#if THROW_ON_DISPOSED
if (disposed)
{
throw new ObjectDisposedException(
typeof(SQLiteChangeSetEnumerator).Name);
}
#endif
}
///////////////////////////////////////////////////////////////////////
/// <summary>
/// Disposes or finalizes this object instance.
/// </summary>
/// <param name="disposing">
/// Non-zero if this object is being disposed; otherwise, this object
/// is being finalized.
/// </param>
protected virtual void Dispose(bool disposing)
{
try
{
if (!disposed)
{
if (disposing)
................................................................................
}
}
#endregion
///////////////////////////////////////////////////////////////////////
#region Destructor
/// <summary>
/// Finalizes this object instance.
/// </summary>
~SQLiteChangeSetEnumerator()
{
Dispose(false);
}
#endregion
}
#endregion
................................................................................
ResetIterator(SQLiteMemoryChangeSetIterator.Create(rawData));
}
#endregion
///////////////////////////////////////////////////////////////////////
#region IDisposable "Pattern" Members
/// <summary>
/// Non-zero if this object instance has been disposed.
/// </summary>
private bool disposed;
/// <summary>
/// Throws an exception if this object instance has been disposed.
/// </summary>
private void CheckDisposed() /* throw */
{
#if THROW_ON_DISPOSED
if (disposed)
{
throw new ObjectDisposedException(
typeof(SQLiteMemoryChangeSetEnumerator).Name);
}
#endif
}
///////////////////////////////////////////////////////////////////////
/// <summary>
/// Disposes or finalizes this object instance.
/// </summary>
/// <param name="disposing">
/// Non-zero if this object is being disposed; otherwise, this object
/// is being finalized.
/// </param>
protected override void Dispose(bool disposing)
{
try
{
if (!disposed)
{
if (disposing)
................................................................................
// do nothing.
}
#endregion
///////////////////////////////////////////////////////////////////////
#region IDisposable "Pattern" Members
/// <summary>
/// Non-zero if this object instance has been disposed.
/// </summary>
private bool disposed;
/// <summary>
/// Throws an exception if this object instance has been disposed.
/// </summary>
private void CheckDisposed() /* throw */
{
#if THROW_ON_DISPOSED
if (disposed)
{
throw new ObjectDisposedException(
typeof(SQLiteStreamChangeSetEnumerator).Name);
}
#endif
}
///////////////////////////////////////////////////////////////////////
/// <summary>
/// Disposes or finalizes this object instance.
/// </summary>
/// <param name="disposing">
/// Non-zero if this object is being disposed; otherwise, this object
/// is being finalized.
/// </param>
protected override void Dispose(bool disposing)
{
try
{
//if (!disposed)
//{
// if (disposing)
................................................................................
return SQLiteValue.FromIntPtr(pValue);
}
#endregion
///////////////////////////////////////////////////////////////////////
#region IDisposable Members
/// <summary>
/// Disposes of this object instance.
/// </summary>
public void Dispose()
{
Dispose(true);
GC.SuppressFinalize(this);
}
#endregion
///////////////////////////////////////////////////////////////////////
#region IDisposable "Pattern" Members
/// <summary>
/// Non-zero if this object instance has been disposed.
/// </summary>
private bool disposed;
/// <summary>
/// Throws an exception if this object instance has been disposed.
/// </summary>
private void CheckDisposed() /* throw */
{
#if THROW_ON_DISPOSED
if (disposed)
{
throw new ObjectDisposedException(
typeof(SQLiteChangeSetMetadataItem).Name);
}
#endif
}
///////////////////////////////////////////////////////////////////////
/// <summary>
/// Disposes or finalizes this object instance.
/// </summary>
/// <param name="disposing">
/// Non-zero if this object is being disposed; otherwise, this object
/// is being finalized.
/// </param>
private /* protected virtual */ void Dispose(bool disposing)
{
try
{
if (!disposed)
{
if (disposing)
................................................................................
}
}
#endregion
///////////////////////////////////////////////////////////////////////
#region Destructor
/// <summary>
/// Finalizes this object instance.
/// </summary>
~SQLiteChangeSetMetadataItem()
{
Dispose(false);
}
#endregion
}
#endregion
}
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