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Changes In Branch isolationLevels Excluding Merge-Ins

This is equivalent to a diff from a242748e03 to a9fb57516e

2014-04-02
02:09
Add support for mapping transaction isolation levels to their legacy default values. Pursuant to [56b42d99c1]. check-in: 919d687064 user: mistachkin tags: trunk
2014-03-30
01:42
Update version history docs. Closed-Leaf check-in: a9fb57516e user: mistachkin tags: isolationLevels
01:19
Add support for mapping transaction isolation levels to their legacy default values. Pursuant to [56b42d99c1]. check-in: 79365bcaed user: mistachkin tags: isolationLevels
2014-03-29
20:52
Make test 'data-1.37' more resilient to thread timing issues. check-in: a242748e03 user: mistachkin tags: trunk
2014-03-26
20:59
Fix text for the new NuGet package on the download page. check-in: 99cf773e08 user: mistachkin tags: trunk

Changes to Doc/Extra/Provider/version.html.

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    </div>
    <div id="mainSection">
    <div id="mainBody">
    <h1 class="heading">Version History</h1>
    <p><b>1.0.93.0 - April XX, 2014 <font color="red">(release scheduled)</font></b></p>
    <ul>
      <li>Updated to <a href="http://www.sqlite.org/releaselog/3_8_4_2.html">SQLite 3.8.4.2</a>.</li>

    </ul>
    <p><b>1.0.92.0 - March 19, 2014</p>
    <ul>
      <li>Updated to <a href="http://www.sqlite.org/releaselog/3_8_4_1.html">SQLite 3.8.4.1</a>.</li>
      <li>Update the list of keywords returned by SQLiteConnection.GetSchema(&quot;ReservedWords&quot;).&nbsp;<b>** Potentially Incompatible Change **</b></li>
      <li>Raise the static SQLiteConnection.Changed event when any SQLiteCommand or SQLiteDataReader object is closed or disposed.</li>
      <li>Add the SQLiteDataReader.StepCount property to return the number of rows seen so far.</li>







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    </div>
    <div id="mainSection">
    <div id="mainBody">
    <h1 class="heading">Version History</h1>
    <p><b>1.0.93.0 - April XX, 2014 <font color="red">(release scheduled)</font></b></p>
    <ul>
      <li>Updated to <a href="http://www.sqlite.org/releaselog/3_8_4_2.html">SQLite 3.8.4.2</a>.</li>
      <li>Add support for mapping transaction isolation levels to their legacy default values. Pursuant to <a href="http://system.data.sqlite.org/index.html/info/56b42d99c1">[56b42d99c1]</a>.</li>
    </ul>
    <p><b>1.0.92.0 - March 19, 2014</p>
    <ul>
      <li>Updated to <a href="http://www.sqlite.org/releaselog/3_8_4_1.html">SQLite 3.8.4.1</a>.</li>
      <li>Update the list of keywords returned by SQLiteConnection.GetSchema(&quot;ReservedWords&quot;).&nbsp;<b>** Potentially Incompatible Change **</b></li>
      <li>Raise the static SQLiteConnection.Changed event when any SQLiteCommand or SQLiteDataReader object is closed or disposed.</li>
      <li>Add the SQLiteDataReader.StepCount property to return the number of rows seen so far.</li>

Changes to System.Data.SQLite/SQLiteBase.cs.

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      /// <summary>
      /// When the <see cref="SQLiteDataReader.HasRows" /> property is used, it
      /// should return non-zero if there were ever any rows in the associated
      /// result sets.
      /// </summary>
      StickyHasRows = 0x400000,
















      /// <summary>
      /// When binding parameter values or returning column values, always
      /// treat them as though they were plain text (i.e. no numeric,
      /// date/time, or other conversions should be attempted).
      /// </summary>
      BindAndGetAllAsText = BindAllAsText | GetAllAsText,








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      /// <summary>
      /// When the <see cref="SQLiteDataReader.HasRows" /> property is used, it
      /// should return non-zero if there were ever any rows in the associated
      /// result sets.
      /// </summary>
      StickyHasRows = 0x400000,

      /// <summary>
      /// Enable "strict" transaction enlistment semantics.  Setting this flag
      /// will cause an exception to be thrown if an attempt is made to enlist
      /// in a transaction with an unavailable or unsupported isolation level.
      /// In the future, more extensive checks may be enabled by this flag as
      /// well.
      /// </summary>
      StrictEnlistment = 0x800000,

      /// <summary>
      /// Enable mapping of unsupported transaction isolation levels to the
      /// closest supported transaction isolation level.
      /// </summary>
      MapIsolationLevels = 0x1000000,

      /// <summary>
      /// When binding parameter values or returning column values, always
      /// treat them as though they were plain text (i.e. no numeric,
      /// date/time, or other conversions should be attempted).
      /// </summary>
      BindAndGetAllAsText = BindAllAsText | GetAllAsText,

Changes to System.Data.SQLite/SQLiteConnection.cs.

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    /// because those names are reserved for use by SQLite (i.e. they cannot
    /// be confused with the names of user objects).
    /// </summary>
    internal const string DefaultBaseSchemaName = "sqlite_default_schema";

    private const string MemoryFileName = ":memory:";




    private const SQLiteConnectionFlags DefaultFlags = SQLiteConnectionFlags.Default;
    private const SQLiteSynchronousEnum DefaultSynchronous = SQLiteSynchronousEnum.Default;
    private const SQLiteJournalModeEnum DefaultJournalMode = SQLiteJournalModeEnum.Default;
    private const IsolationLevel DefaultIsolationLevel = IsolationLevel.Serializable;
    private const SQLiteDateFormats DefaultDateTimeFormat = SQLiteDateFormats.ISO8601;
    private const DateTimeKind DefaultDateTimeKind = DateTimeKind.Unspecified;
    private const string DefaultDateTimeFormatString = null;







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    /// because those names are reserved for use by SQLite (i.e. they cannot
    /// be confused with the names of user objects).
    /// </summary>
    internal const string DefaultBaseSchemaName = "sqlite_default_schema";

    private const string MemoryFileName = ":memory:";

    internal const IsolationLevel DeferredIsolationLevel = IsolationLevel.ReadCommitted;
    internal const IsolationLevel ImmediateIsolationLevel = IsolationLevel.Serializable;

    private const SQLiteConnectionFlags DefaultFlags = SQLiteConnectionFlags.Default;
    private const SQLiteSynchronousEnum DefaultSynchronous = SQLiteSynchronousEnum.Default;
    private const SQLiteJournalModeEnum DefaultJournalMode = SQLiteJournalModeEnum.Default;
    private const IsolationLevel DefaultIsolationLevel = IsolationLevel.Serializable;
    private const SQLiteDateFormats DefaultDateTimeFormat = SQLiteDateFormats.ISO8601;
    private const DateTimeKind DefaultDateTimeKind = DateTimeKind.Unspecified;
    private const string DefaultDateTimeFormatString = null;
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    /// Determines and returns the fallback default isolation level when one cannot be
    /// obtained from an existing connection instance.
    /// </summary>
    /// <returns>
    /// The fallback default isolation level for this connection instance -OR-
    /// <see cref="IsolationLevel.Unspecified" /> if it cannot be determined.
    /// </returns>
    internal static IsolationLevel GetFallbackDefaultIsolationLevel()
    {
        return DefaultIsolationLevel;
    }

    /// <summary>
    /// Determines and returns the default isolation level for this connection instance.
    /// </summary>







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    /// Determines and returns the fallback default isolation level when one cannot be
    /// obtained from an existing connection instance.
    /// </summary>
    /// <returns>
    /// The fallback default isolation level for this connection instance -OR-
    /// <see cref="IsolationLevel.Unspecified" /> if it cannot be determined.
    /// </returns>
    private static IsolationLevel GetFallbackDefaultIsolationLevel()
    {
        return DefaultIsolationLevel;
    }

    /// <summary>
    /// Determines and returns the default isolation level for this connection instance.
    /// </summary>
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    /// When FALSE, a writelock is obtained immediately.  The default is TRUE, but in a multi-threaded multi-writer
    /// environment, one may instead choose to lock the database immediately to avoid any possible writer deadlock.</param>
    /// <returns>Returns a SQLiteTransaction object.</returns>
    [Obsolete("Use one of the standard BeginTransaction methods, this one will be removed soon")]
    public SQLiteTransaction BeginTransaction(IsolationLevel isolationLevel, bool deferredLock)
    {
      CheckDisposed();
      return (SQLiteTransaction)BeginDbTransaction(deferredLock == false ? IsolationLevel.Serializable : IsolationLevel.ReadCommitted);
    }

    /// <summary>
    /// OBSOLETE.  Creates a new SQLiteTransaction if one isn't already active on the connection.
    /// </summary>
    /// <param name="deferredLock">When TRUE, SQLite defers obtaining a write lock until a write operation is requested.
    /// When FALSE, a writelock is obtained immediately.  The default is false, but in a multi-threaded multi-writer
    /// environment, one may instead choose to lock the database immediately to avoid any possible writer deadlock.</param>
    /// <returns>Returns a SQLiteTransaction object.</returns>
    [Obsolete("Use one of the standard BeginTransaction methods, this one will be removed soon")]
    public SQLiteTransaction BeginTransaction(bool deferredLock)
    {
      CheckDisposed();
      return (SQLiteTransaction)BeginDbTransaction(deferredLock == false ? IsolationLevel.Serializable : IsolationLevel.ReadCommitted);
    }

    /// <summary>
    /// Creates a new <see cref="SQLiteTransaction" /> if one isn't already active on the connection.
    /// </summary>
    /// <param name="isolationLevel">Supported isolation levels are Serializable, ReadCommitted and Unspecified.</param>
    /// <remarks>







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    /// When FALSE, a writelock is obtained immediately.  The default is TRUE, but in a multi-threaded multi-writer
    /// environment, one may instead choose to lock the database immediately to avoid any possible writer deadlock.</param>
    /// <returns>Returns a SQLiteTransaction object.</returns>
    [Obsolete("Use one of the standard BeginTransaction methods, this one will be removed soon")]
    public SQLiteTransaction BeginTransaction(IsolationLevel isolationLevel, bool deferredLock)
    {
      CheckDisposed();
      return (SQLiteTransaction)BeginDbTransaction(deferredLock == false ? ImmediateIsolationLevel : DeferredIsolationLevel);
    }

    /// <summary>
    /// OBSOLETE.  Creates a new SQLiteTransaction if one isn't already active on the connection.
    /// </summary>
    /// <param name="deferredLock">When TRUE, SQLite defers obtaining a write lock until a write operation is requested.
    /// When FALSE, a writelock is obtained immediately.  The default is false, but in a multi-threaded multi-writer
    /// environment, one may instead choose to lock the database immediately to avoid any possible writer deadlock.</param>
    /// <returns>Returns a SQLiteTransaction object.</returns>
    [Obsolete("Use one of the standard BeginTransaction methods, this one will be removed soon")]
    public SQLiteTransaction BeginTransaction(bool deferredLock)
    {
      CheckDisposed();
      return (SQLiteTransaction)BeginDbTransaction(deferredLock == false ? ImmediateIsolationLevel : DeferredIsolationLevel);
    }

    /// <summary>
    /// Creates a new <see cref="SQLiteTransaction" /> if one isn't already active on the connection.
    /// </summary>
    /// <param name="isolationLevel">Supported isolation levels are Serializable, ReadCommitted and Unspecified.</param>
    /// <remarks>
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    /// <returns></returns>
    protected override DbTransaction BeginDbTransaction(IsolationLevel isolationLevel)
    {
      if (_connectionState != ConnectionState.Open)
        throw new InvalidOperationException();

      if (isolationLevel == IsolationLevel.Unspecified) isolationLevel = _defaultIsolation;


      if (isolationLevel != IsolationLevel.Serializable && isolationLevel != IsolationLevel.ReadCommitted)
        throw new ArgumentException("isolationLevel");

      SQLiteTransaction transaction =
          new SQLiteTransaction(this, isolationLevel != IsolationLevel.Serializable);

      OnChanged(this, new ConnectionEventArgs(
          SQLiteConnectionEventType.NewTransaction, null, transaction,
          null, null, null, null, null));

      return transaction;
    }







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    /// <returns></returns>
    protected override DbTransaction BeginDbTransaction(IsolationLevel isolationLevel)
    {
      if (_connectionState != ConnectionState.Open)
        throw new InvalidOperationException();

      if (isolationLevel == IsolationLevel.Unspecified) isolationLevel = _defaultIsolation;
      isolationLevel = GetEffectiveIsolationLevel(isolationLevel);

      if (isolationLevel != ImmediateIsolationLevel && isolationLevel != DeferredIsolationLevel)
        throw new ArgumentException("isolationLevel");

      SQLiteTransaction transaction =
          new SQLiteTransaction(this, isolationLevel != ImmediateIsolationLevel);

      OnChanged(this, new ConnectionEventArgs(
          SQLiteConnectionEventType.NewTransaction, null, transaction,
          null, null, null, null, null));

      return transaction;
    }
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        throw new ArgumentException("Already enlisted in a transaction");

      if (_transactionLevel > 0 && transaction != null)
        throw new ArgumentException("Unable to enlist in transaction, a local transaction already exists");
      else if (transaction == null)
        throw new ArgumentNullException("Unable to enlist in transaction, it is null");




      _enlistment = new SQLiteEnlistment(this, transaction);



      OnChanged(this, new ConnectionEventArgs(
          SQLiteConnectionEventType.EnlistTransaction, null, null, null, null,
          null, null, new object[] { _enlistment }));
    }
#endif








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        throw new ArgumentException("Already enlisted in a transaction");

      if (_transactionLevel > 0 && transaction != null)
        throw new ArgumentException("Unable to enlist in transaction, a local transaction already exists");
      else if (transaction == null)
        throw new ArgumentNullException("Unable to enlist in transaction, it is null");

      bool strictEnlistment = ((_flags & SQLiteConnectionFlags.StrictEnlistment) ==
          SQLiteConnectionFlags.StrictEnlistment);

      _enlistment = new SQLiteEnlistment(this, transaction,
          GetFallbackDefaultIsolationLevel(), strictEnlistment,
          strictEnlistment);

      OnChanged(this, new ConnectionEventArgs(
          SQLiteConnectionEventType.EnlistTransaction, null, null, null, null,
          null, null, new object[] { _enlistment }));
    }
#endif

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            if ((_flags & SQLiteConnectionFlags.NoConnectionPool) == SQLiteConnectionFlags.NoConnectionPool)
                result = false;
        }

        return result;
    }








































    /// <summary>
    /// Opens the connection using the parameters found in the <see cref="ConnectionString" />.
    /// </summary>
    public override void Open()
    {
      CheckDisposed();







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            if ((_flags & SQLiteConnectionFlags.NoConnectionPool) == SQLiteConnectionFlags.NoConnectionPool)
                result = false;
        }

        return result;
    }

    /// <summary>
    /// Determines the transaction isolation level that should be used by
    /// the caller, primarily based upon the one specified by the caller.
    /// If mapping of transaction isolation levels is enabled, the returned
    /// transaction isolation level may be significantly different than the
    /// originally specified one.
    /// </summary>
    /// <param name="isolationLevel">
    /// The originally specified transaction isolation level.
    /// </param>
    /// <returns>
    /// The transaction isolation level that should be used.
    /// </returns>
    private IsolationLevel GetEffectiveIsolationLevel(
        IsolationLevel isolationLevel
        )
    {
        if ((_flags & SQLiteConnectionFlags.MapIsolationLevels)
                != SQLiteConnectionFlags.MapIsolationLevels)
        {
            return isolationLevel;
        }

        switch (isolationLevel)
        {
            case IsolationLevel.Unspecified:
            case IsolationLevel.Chaos:
            case IsolationLevel.ReadUncommitted:
            case IsolationLevel.ReadCommitted:
                return DeferredIsolationLevel;
            case IsolationLevel.RepeatableRead:
            case IsolationLevel.Serializable:
            case IsolationLevel.Snapshot:
                return ImmediateIsolationLevel;
            default:
                return GetFallbackDefaultIsolationLevel();
        }
    }

    /// <summary>
    /// Opens the connection using the parameters found in the <see cref="ConnectionString" />.
    /// </summary>
    public override void Open()
    {
      CheckDisposed();
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        bool usePooling = SQLiteConvert.ToBoolean(FindKey(opts, "Pooling", GetDefaultPooling().ToString()));
        int maxPoolSize = Convert.ToInt32(FindKey(opts, "Max Pool Size", DefaultMaxPoolSize.ToString()), CultureInfo.InvariantCulture);

        _defaultTimeout = Convert.ToInt32(FindKey(opts, "Default Timeout", DefaultConnectionTimeout.ToString()), CultureInfo.InvariantCulture);

        enumValue = TryParseEnum(typeof(IsolationLevel), FindKey(opts, "Default IsolationLevel", DefaultIsolationLevel.ToString()), true);
        _defaultIsolation = (enumValue is IsolationLevel) ? (IsolationLevel)enumValue : DefaultIsolationLevel;


        if (_defaultIsolation != IsolationLevel.Serializable && _defaultIsolation != IsolationLevel.ReadCommitted)
          throw new NotSupportedException("Invalid Default IsolationLevel specified");

        _baseSchemaName = FindKey(opts, "BaseSchemaName", DefaultBaseSchemaName);

        if (_sql == null)
        {
            SetupSQLiteBase(opts);







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        bool usePooling = SQLiteConvert.ToBoolean(FindKey(opts, "Pooling", GetDefaultPooling().ToString()));
        int maxPoolSize = Convert.ToInt32(FindKey(opts, "Max Pool Size", DefaultMaxPoolSize.ToString()), CultureInfo.InvariantCulture);

        _defaultTimeout = Convert.ToInt32(FindKey(opts, "Default Timeout", DefaultConnectionTimeout.ToString()), CultureInfo.InvariantCulture);

        enumValue = TryParseEnum(typeof(IsolationLevel), FindKey(opts, "Default IsolationLevel", DefaultIsolationLevel.ToString()), true);
        _defaultIsolation = (enumValue is IsolationLevel) ? (IsolationLevel)enumValue : DefaultIsolationLevel;
        _defaultIsolation = GetEffectiveIsolationLevel(_defaultIsolation);

        if (_defaultIsolation != ImmediateIsolationLevel && _defaultIsolation != DeferredIsolationLevel)
          throw new NotSupportedException("Invalid Default IsolationLevel specified");

        _baseSchemaName = FindKey(opts, "BaseSchemaName", DefaultBaseSchemaName);

        if (_sql == null)
        {
            SetupSQLiteBase(opts);

Changes to System.Data.SQLite/SQLiteEnlistment.cs.

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/********************************************************
 * ADO.NET 2.0 Data Provider for SQLite Version 3.X
 * Written by Robert Simpson (robert@blackcastlesoft.com)
 *
 * Released to the public domain, use at your own risk!
 ********************************************************/

#if !PLATFORM_COMPACTFRAMEWORK
namespace System.Data.SQLite
{

  using System.Transactions;

  internal sealed class SQLiteEnlistment : IDisposable, IEnlistmentNotification
  {
    internal SQLiteTransaction _transaction;
    internal Transaction _scope;
    internal bool _disposeConnection;

    internal SQLiteEnlistment(SQLiteConnection cnn, Transaction scope)






    {
      _transaction = cnn.BeginTransaction(GetSystemDataIsolationLevel(
          cnn, scope));


      _scope = scope;

      _scope.EnlistVolatile(this, System.Transactions.EnlistmentOptions.None);
    }

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

    #region Private Methods
    private System.Data.IsolationLevel GetSystemDataIsolationLevel(
        SQLiteConnection connection,
        Transaction transaction



        )
    {
        if (transaction == null)
        {
            //

            // TODO: Perhaps throw an exception here if the connection
            //       is null?
            //
            return (connection != null) ?
                connection.GetDefaultIsolationLevel() :







                SQLiteConnection.GetFallbackDefaultIsolationLevel();
        }

        System.Transactions.IsolationLevel isolationLevel =
            transaction.IsolationLevel;

        //
        // TODO: Are these isolation level mappings actually correct?
        //
        switch (isolationLevel)
        {


            case IsolationLevel.Chaos:
                return System.Data.IsolationLevel.Chaos;
            case IsolationLevel.ReadCommitted:
                return System.Data.IsolationLevel.ReadCommitted;
            case IsolationLevel.ReadUncommitted:
                return System.Data.IsolationLevel.ReadUncommitted;
            case IsolationLevel.RepeatableRead:
                return System.Data.IsolationLevel.RepeatableRead;
            case IsolationLevel.Serializable:
                return System.Data.IsolationLevel.Serializable;
            case IsolationLevel.Snapshot:
                return System.Data.IsolationLevel.Snapshot;
            case IsolationLevel.Unspecified:
                return System.Data.IsolationLevel.Unspecified;
        }

        //
        // TODO: Perhaps throw an exception here?


        //







        return SQLiteConnection.GetFallbackDefaultIsolationLevel();
    }

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

    private void Cleanup(SQLiteConnection cnn)
    {
        if (_disposeConnection)










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/********************************************************
 * ADO.NET 2.0 Data Provider for SQLite Version 3.X
 * Written by Robert Simpson (robert@blackcastlesoft.com)
 *
 * Released to the public domain, use at your own risk!
 ********************************************************/

#if !PLATFORM_COMPACTFRAMEWORK
namespace System.Data.SQLite
{
    using System.Globalization;
    using System.Transactions;

  internal sealed class SQLiteEnlistment : IDisposable, IEnlistmentNotification
  {
    internal SQLiteTransaction _transaction;
    internal Transaction _scope;
    internal bool _disposeConnection;

    internal SQLiteEnlistment(
        SQLiteConnection cnn,
        Transaction scope,
        System.Data.IsolationLevel defaultIsolationLevel,
        bool throwOnUnavailable,
        bool throwOnUnsupported
        )
    {
      _transaction = cnn.BeginTransaction(GetSystemDataIsolationLevel(
          cnn, scope, defaultIsolationLevel, throwOnUnavailable,
          throwOnUnsupported));

      _scope = scope;

      _scope.EnlistVolatile(this, System.Transactions.EnlistmentOptions.None);
    }

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

    #region Private Methods
    private System.Data.IsolationLevel GetSystemDataIsolationLevel(
        SQLiteConnection connection,
        Transaction transaction,
        System.Data.IsolationLevel defaultIsolationLevel,
        bool throwOnUnavailable,
        bool throwOnUnsupported
        )
    {
        if (transaction == null)
        {
            //
            // NOTE: If neither the transaction nor connection isolation
            //       level is available, throw an exception if instructed
            //       by the caller.
            //
            if (connection != null)
                return connection.GetDefaultIsolationLevel();

            if (throwOnUnavailable)
            {
                throw new InvalidOperationException(
                    "isolation level is unavailable");
            }

            return defaultIsolationLevel;
        }

        System.Transactions.IsolationLevel isolationLevel =
            transaction.IsolationLevel;

        //
        // TODO: Are these isolation level mappings actually correct?
        //
        switch (isolationLevel)
        {
            case IsolationLevel.Unspecified:
                return System.Data.IsolationLevel.Unspecified;
            case IsolationLevel.Chaos:
                return System.Data.IsolationLevel.Chaos;
            case IsolationLevel.ReadUncommitted:
                return System.Data.IsolationLevel.ReadUncommitted;
            case IsolationLevel.ReadCommitted:
                return System.Data.IsolationLevel.ReadCommitted;
            case IsolationLevel.RepeatableRead:
                return System.Data.IsolationLevel.RepeatableRead;
            case IsolationLevel.Serializable:
                return System.Data.IsolationLevel.Serializable;
            case IsolationLevel.Snapshot:
                return System.Data.IsolationLevel.Snapshot;


        }

        //
        // NOTE: When in "strict" mode, throw an exception if the isolation
        //       level is not recognized; otherwise, fallback to the default
        //       isolation level specified by the caller.
        //
        if (throwOnUnsupported)
        {
            throw new InvalidOperationException(
                String.Format(CultureInfo.InvariantCulture,
                "unsupported isolation level {0}", isolationLevel));
        }

        return defaultIsolationLevel;
    }

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

    private void Cleanup(SQLiteConnection cnn)
    {
        if (_disposeConnection)

Changes to System.Data.SQLite/SQLiteTransaction.cs.

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    /// <param name="connection">The connection to open a transaction on</param>
    /// <param name="deferredLock">TRUE to defer the writelock, or FALSE to lock immediately</param>
    internal SQLiteTransaction(SQLiteConnection connection, bool deferredLock)
    {
      _cnn = connection;
      _version = _cnn._version;

      _level = (deferredLock == true) ? IsolationLevel.ReadCommitted : IsolationLevel.Serializable;



      if (_cnn._transactionLevel++ == 0)
      {
        try
        {
          using (SQLiteCommand cmd = _cnn.CreateCommand())
          {







|
>
>







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    /// <param name="connection">The connection to open a transaction on</param>
    /// <param name="deferredLock">TRUE to defer the writelock, or FALSE to lock immediately</param>
    internal SQLiteTransaction(SQLiteConnection connection, bool deferredLock)
    {
      _cnn = connection;
      _version = _cnn._version;

      _level = (deferredLock == true) ?
          SQLiteConnection.DeferredIsolationLevel :
          SQLiteConnection.ImmediateIsolationLevel;

      if (_cnn._transactionLevel++ == 0)
      {
        try
        {
          using (SQLiteCommand cmd = _cnn.CreateCommand())
          {

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} -cleanup {
  cleanupDb $fileName

  unset -nocomplain result results errors code sql dataSource id db fileName
} -constraints {eagle monoBug28 command.sql compile.DATA SQLite\
System.Data.SQLite compileCSharp} -match regexp -result {^Ok\
System#CodeDom#Compiler#CompilerResults#\d+ \{\} 0 1$}}


















































































































































































































































































































































































































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

runSQLiteTestEpilogue
runTestEpilogue







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} -cleanup {
  cleanupDb $fileName

  unset -nocomplain result results errors code sql dataSource id db fileName
} -constraints {eagle monoBug28 command.sql compile.DATA SQLite\
System.Data.SQLite compileCSharp} -match regexp -result {^Ok\
System#CodeDom#Compiler#CompilerResults#\d+ \{\} 0 1$}}

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

set flags MapIsolationLevels

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

runTest {test tkt-56b42d99c1-1.6 {enlisted transaction isolation} -setup {
  setupDb [set fileName tkt-56b42d99c1-1.6.db]
} -body {
  set id [object invoke Interpreter.GetActive NextId]
  set dataSource [file join [getDatabaseDirectory] $fileName]

  unset -nocomplain results errors

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

    namespace _Dynamic${id}
    {
      public static class Test${id}
      {
        public static bool TryEnlistInTransaction()
        {
          TransactionOptions transactionOptions = new TransactionOptions();
          transactionOptions.IsolationLevel = IsolationLevel.ReadUncommitted;

          using (TransactionScope transactionScope = new TransactionScope(
              TransactionScopeOption.Required, transactionOptions))
          {
            using (SQLiteConnection connection1 = new SQLiteConnection(
                "Data Source=${dataSource};[getFlagsProperty $flags]"))
            {
              connection1.Open();

              using (SQLiteConnection connection2 = new SQLiteConnection(
                  "Data Source=${dataSource};[getFlagsProperty $flags]"))
              {
                connection2.Open();

                BindingFlags bindingFlags = BindingFlags.Instance |
                  BindingFlags.NonPublic | BindingFlags.GetField;

                FieldInfo fieldInfo1 = connection1.GetType().GetField(
                  "_enlistment", bindingFlags);

                object enlistment1 = fieldInfo1.GetValue(connection1);
                object enlistment2 = fieldInfo1.GetValue(connection2);

                FieldInfo fieldInfo2 = enlistment1.GetType().GetField(
                  "_transaction", bindingFlags);

                SQLiteTransaction transaction1 =
                  (SQLiteTransaction)fieldInfo2.GetValue(enlistment1);

                SQLiteTransaction transaction2 =
                  (SQLiteTransaction)fieldInfo2.GetValue(enlistment2);

                return (transaction1.IsolationLevel ==
                        transaction2.IsolationLevel);
              }
            }
          }
        }

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

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

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

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

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

runTest {test tkt-56b42d99c1-1.7 {enlisted transaction isolation} -setup {
  setupDb [set fileName tkt-56b42d99c1-1.7.db]
} -body {
  set id [object invoke Interpreter.GetActive NextId]
  set dataSource [file join [getDatabaseDirectory] $fileName]

  unset -nocomplain results errors

  set sql(1) { \
    CREATE TABLE t1(x); \
    INSERT INTO t1 (x) VALUES(1); \
  }

  set sql(2) { \
    SELECT COUNT(*) FROM sqlite_master WHERE type = 'table'; \
  }

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

    namespace _Dynamic${id}
    {
      public static class Test${id}
      {
        public static int Main()
        {
          TransactionOptions transactionOptions = new TransactionOptions();
          transactionOptions.IsolationLevel = IsolationLevel.ReadUncommitted;

          using (TransactionScope transactionScope = new TransactionScope(
              TransactionScopeOption.Required, transactionOptions))
          {
            using (SQLiteConnection connection1 = new SQLiteConnection(
                "Data Source=${dataSource};[getFlagsProperty $flags]"))
            {
              connection1.Open();

              using (SQLiteConnection connection2 = new SQLiteConnection(
                  "Data Source=${dataSource};[getFlagsProperty $flags]"))
              {
                connection2.Open();

                using (SQLiteCommand command1 = connection1.CreateCommand())
                {
                  command1.CommandText = "${sql(1)}";
                  command1.ExecuteNonQuery();

                  using (SQLiteCommand command2 = connection2.CreateCommand())
                  {
                    command2.CommandText = "${sql(2)}";
                    return (int)(long)command2.ExecuteScalar();
                  }
                }
              }
            }
          }
        }
      }
    }
  }] true true true results errors System.Data.SQLite.dll]

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

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

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

runTest {test tkt-56b42d99c1-1.8 {enlisted transaction isolation} -setup {
  setupDb [set fileName tkt-56b42d99c1-1.8.db]
} -body {
  set id [object invoke Interpreter.GetActive NextId]
  set dataSource [file join [getDatabaseDirectory] $fileName]

  unset -nocomplain results errors

  set sql(1) { \
    CREATE TABLE t1(x); \
    INSERT INTO t1 (x) VALUES(1); \
  }

  set sql(2) { \
    SELECT COUNT(*) FROM sqlite_master WHERE type = 'table'; \
  }

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

    namespace _Dynamic${id}
    {
      public static class Test${id}
      {
        public static int Main()
        {
          TransactionOptions transactionOptions = new TransactionOptions();
          transactionOptions.IsolationLevel = IsolationLevel.ReadUncommitted;

          using (TransactionScope transactionScope = new TransactionScope(
              TransactionScopeOption.Required, transactionOptions))
          {
            using (SQLiteConnection connection1 = new SQLiteConnection(
                "Data Source=${dataSource};Enlist=False;[getFlagsProperty $flags]"))
            {
              connection1.Open();

              using (SQLiteConnection connection2 = new SQLiteConnection(
                  "Data Source=${dataSource};Enlist=False;[getFlagsProperty $flags]"))
              {
                connection2.Open();

                using (SQLiteCommand command1 = connection1.CreateCommand())
                {
                  command1.CommandText = "${sql(1)}";
                  command1.ExecuteNonQuery();

                  using (SQLiteCommand command2 = connection2.CreateCommand())
                  {
                    command2.CommandText = "${sql(2)}";
                    return (int)(long)command2.ExecuteScalar();
                  }
                }
              }
            }
          }
        }
      }
    }
  }] true true true results errors System.Data.SQLite.dll]

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

  unset -nocomplain result results errors code sql dataSource id db fileName
} -constraints {eagle monoBug28 command.sql compile.DATA SQLite\
System.Data.SQLite compileCSharp} -match regexp -result {^Ok\
System#CodeDom#Compiler#CompilerResults#\d+ \{\} 0 1$}}

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

runTest {test tkt-56b42d99c1-1.9 {enlisted transaction isolation} -setup {
  setupDb [set fileName tkt-56b42d99c1-1.9.db]
} -body {
  set id [object invoke Interpreter.GetActive NextId]
  set dataSource [file join [getDatabaseDirectory] $fileName]

  unset -nocomplain results errors

  set sql(1) { \
    CREATE TABLE t1(x); \
    INSERT INTO t1 (x) VALUES(1); \
  }

  set sql(2) { \
    SELECT COUNT(*) FROM sqlite_master WHERE type = 'table'; \
  }

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

    namespace _Dynamic${id}
    {
      public static class Test${id}
      {
        public static int Main()
        {
          TransactionOptions transactionOptions = new TransactionOptions();
          transactionOptions.IsolationLevel = IsolationLevel.ReadUncommitted;

          using (TransactionScope transactionScope = new TransactionScope(
              TransactionScopeOption.Required, transactionOptions))
          {
            using (SQLiteConnection connection1 = new SQLiteConnection(
                "Data Source=${dataSource};[getFlagsProperty $flags]"))
            {
              connection1.Open();

              using (SQLiteConnection connection2 = new SQLiteConnection(
                  "Data Source=${dataSource};Enlist=False;[getFlagsProperty $flags]"))
              {
                connection2.Open();

                using (SQLiteCommand command1 = connection1.CreateCommand())
                {
                  command1.CommandText = "${sql(1)}";
                  command1.ExecuteNonQuery();

                  using (SQLiteCommand command2 = connection2.CreateCommand())
                  {
                    command2.CommandText = "${sql(2)}";
                    return (int)(long)command2.ExecuteScalar();
                  }
                }
              }
            }
          }
        }
      }
    }
  }] true true true results errors System.Data.SQLite.dll]

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

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

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

runTest {test tkt-56b42d99c1-1.10 {enlisted transaction isolation} -setup {
  setupDb [set fileName tkt-56b42d99c1-1.10.db]
} -body {
  set id [object invoke Interpreter.GetActive NextId]
  set dataSource [file join [getDatabaseDirectory] $fileName]

  unset -nocomplain results errors

  set sql(1) { \
    CREATE TABLE t1(x); \
    INSERT INTO t1 (x) VALUES(1); \
  }

  set sql(2) { \
    SELECT COUNT(*) FROM sqlite_master WHERE type = 'table'; \
  }

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

    namespace _Dynamic${id}
    {
      public static class Test${id}
      {
        public static int Main()
        {
          TransactionOptions transactionOptions = new TransactionOptions();
          transactionOptions.IsolationLevel = IsolationLevel.ReadUncommitted;

          using (TransactionScope transactionScope = new TransactionScope(
              TransactionScopeOption.Required, transactionOptions))
          {
            using (SQLiteConnection connection1 = new SQLiteConnection(
                "Data Source=${dataSource};Enlist=False;[getFlagsProperty $flags]"))
            {
              connection1.Open();

              using (SQLiteConnection connection2 = new SQLiteConnection(
                  "Data Source=${dataSource};[getFlagsProperty $flags]"))
              {
                connection2.Open();

                using (SQLiteCommand command1 = connection1.CreateCommand())
                {
                  command1.CommandText = "${sql(1)}";
                  command1.ExecuteNonQuery();

                  using (SQLiteCommand command2 = connection2.CreateCommand())
                  {
                    command2.CommandText = "${sql(2)}";
                    return (int)(long)command2.ExecuteScalar();
                  }
                }
              }
            }
          }
        }
      }
    }
  }] true true true results errors System.Data.SQLite.dll]

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

  unset -nocomplain result results errors code sql dataSource id db fileName
} -constraints {eagle monoBug28 command.sql compile.DATA SQLite\
System.Data.SQLite compileCSharp} -match regexp -result {^Ok\
System#CodeDom#Compiler#CompilerResults#\d+ \{\} 0 1$}}

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

unset -nocomplain flags

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

runSQLiteTestEpilogue
runTestEpilogue

Changes to readme.htm.

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<h2><b>Version History</b></h2>

<p>
    <b>1.0.93.0 - April XX, 2014 <font color="red">(release scheduled)</font></b>
</p>
<ul>
    <li>Updated to <a href="http://www.sqlite.org/releaselog/3_8_4_2.html">SQLite 3.8.4.2</a>.</li>

</ul>
<p>
    <b>1.0.92.0 - March 19, 2014</b>
</p>
<ul>
    <li>Updated to <a href="http://www.sqlite.org/releaselog/3_8_4_1.html">SQLite 3.8.4.1</a>.</li>
    <li>Update the list of keywords returned by SQLiteConnection.GetSchema(&quot;ReservedWords&quot;).&nbsp;<b>** Potentially Incompatible Change **</b></li>







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<h2><b>Version History</b></h2>

<p>
    <b>1.0.93.0 - April XX, 2014 <font color="red">(release scheduled)</font></b>
</p>
<ul>
    <li>Updated to <a href="http://www.sqlite.org/releaselog/3_8_4_2.html">SQLite 3.8.4.2</a>.</li>
    <li>Add support for mapping transaction isolation levels to their legacy default values. Pursuant to [56b42d99c1].</li>
</ul>
<p>
    <b>1.0.92.0 - March 19, 2014</b>
</p>
<ul>
    <li>Updated to <a href="http://www.sqlite.org/releaselog/3_8_4_1.html">SQLite 3.8.4.1</a>.</li>
    <li>Update the list of keywords returned by SQLiteConnection.GetSchema(&quot;ReservedWords&quot;).&nbsp;<b>** Potentially Incompatible Change **</b></li>

Changes to www/news.wiki.

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<title>News</title>

<b>Version History</b>

<p>
    <b>1.0.93.0 - April XX, 2014 <font color="red">(release scheduled)</font></b>
</p>
<ul>
    <li>Updated to <a href="http://www.sqlite.org/releaselog/3_8_4_2.html">SQLite 3.8.4.2</a>.</li>

</ul>
<p>
    <b>1.0.92.0 - March 19, 2014</b>
</p>
<ul>
    <li>Updated to <a href="http://www.sqlite.org/releaselog/3_8_4_1.html">SQLite 3.8.4.1</a>.</li>
    <li>Update the list of keywords returned by SQLiteConnection.GetSchema(&quot;ReservedWords&quot;).&nbsp;<b>** Potentially Incompatible Change **</b></li>









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<title>News</title>

<b>Version History</b>

<p>
    <b>1.0.93.0 - April XX, 2014 <font color="red">(release scheduled)</font></b>
</p>
<ul>
    <li>Updated to <a href="http://www.sqlite.org/releaselog/3_8_4_2.html">SQLite 3.8.4.2</a>.</li>
    <li>Add support for mapping transaction isolation levels to their legacy default values. Pursuant to [56b42d99c1].</li>
</ul>
<p>
    <b>1.0.92.0 - March 19, 2014</b>
</p>
<ul>
    <li>Updated to <a href="http://www.sqlite.org/releaselog/3_8_4_1.html">SQLite 3.8.4.1</a>.</li>
    <li>Update the list of keywords returned by SQLiteConnection.GetSchema(&quot;ReservedWords&quot;).&nbsp;<b>** Potentially Incompatible Change **</b></li>