System.Data.SQLite
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Overview
Comment:Avoid throwing non-fatal exceptions during connection disposal. Make the handle checking and disposal code more consistent. Update version history docs with the latest changes. Allow stress test to optionally skip some workloads.
Downloads: Tarball | ZIP archive | SQL archive
Timelines: family | ancestors | descendants | both | trunk
Files: files | file ages | folders
SHA1: 8e2c95ad40fa6854b55bfb504f3bd710b2a049bb
User & Date: mistachkin 2012-10-06 07:05:42
Context
2012-10-06
23:57
Update the master release archive manifest. check-in: a2cb6af104 user: mistachkin tags: trunk
07:05
Avoid throwing non-fatal exceptions during connection disposal. Make the handle checking and disposal code more consistent. Update version history docs with the latest changes. Allow stress test to optionally skip some workloads. check-in: 8e2c95ad40 user: mistachkin tags: trunk
05:58
Remove superfluous Unicode related defines in the native project files. check-in: e84d4d5613 user: mistachkin tags: trunk
Changes
Hide Diffs Unified Diffs Ignore Whitespace Patch

Changes to Doc/Extra/version.html. 

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      <li>Make the test project for the .NET Compact Framework more flexible.</li>
      <li>When available, the new sqlite3_errstr function from the core library is used to get the error message for a specific return code.</li>
      <li>The SetMemoryStatus, Shutdown, ResultCode, ExtendedResultCode, and SetAvRetry methods of the SQLiteConnection class now return a SQLiteErrorCode instead of an integer error code.&nbsp;<b>** Potentially Incompatible Change **</b></li>
      <li>The public constructor for the SQLiteException now takes a SQLiteErrorCode instead of an integer error code.&nbsp;<b>** Potentially Incompatible Change **</b></li>
      <li>The ErrorCode property of the SQLiteException is now an Int32, to allow the property inherited from the base class to be properly overridden.&nbsp;<b>** Potentially Incompatible Change **</b></li>
      <li>The ErrorCode field of the LogEventArgs is now an object instead of an integer.&nbsp;<b>** Potentially Incompatible Change **</b></li>
      <li>The names and messages associated with the SQLiteErrorCode enumeration values have been normalized to match those in the SQLite core library.&nbsp;<b>** Potentially Incompatible Change **</b></li>



    </ul>
    <p><b>1.0.82.0 - September 3, 2012</b></p>
    <ul>
      <li>Updated to <a href="http://www.sqlite.org/releaselog/3_7_14.html">SQLite 3.7.14</a>.</li>
      <li>Properly handle quoted data source values in the connection string. Fix for <a href="http://system.data.sqlite.org/index.html/info/8c3bee31c8">[8c3bee31c8]</a>.</li>
      <li>The <a href="http://nuget.org/packages/System.Data.SQLite">primary NuGet package</a> now supports x86 / x64 and the .NET Framework 2.0 / 4.0 (i.e. in a single package).</li>
      <li>Change the default value for the Synchronous connection string property to Full to match the default used by the SQLite core library itself.&nbsp;<b>** Potentially Incompatible Change **</b></li>








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      <li>Make the test project for the .NET Compact Framework more flexible.</li>
      <li>When available, the new sqlite3_errstr function from the core library is used to get the error message for a specific return code.</li>
      <li>The SetMemoryStatus, Shutdown, ResultCode, ExtendedResultCode, and SetAvRetry methods of the SQLiteConnection class now return a SQLiteErrorCode instead of an integer error code.&nbsp;<b>** Potentially Incompatible Change **</b></li>
      <li>The public constructor for the SQLiteException now takes a SQLiteErrorCode instead of an integer error code.&nbsp;<b>** Potentially Incompatible Change **</b></li>
      <li>The ErrorCode property of the SQLiteException is now an Int32, to allow the property inherited from the base class to be properly overridden.&nbsp;<b>** Potentially Incompatible Change **</b></li>
      <li>The ErrorCode field of the LogEventArgs is now an object instead of an integer.&nbsp;<b>** Potentially Incompatible Change **</b></li>
      <li>The names and messages associated with the SQLiteErrorCode enumeration values have been normalized to match those in the SQLite core library.&nbsp;<b>** Potentially Incompatible Change **</b></li>
      <li>Implement more robust locking semantics for the CriticalHandle derived classes when compiled for the .NET Compact Framework.</li>
      <li>Cache column indexes are they are looked up when using the SQLiteDataReader to improve performance.</li>
      <li>Prevent the SQLiteConnection.Close method from throwing non-fatal exceptions during its disposal.</li>
    </ul>
    <p><b>1.0.82.0 - September 3, 2012</b></p>
    <ul>
      <li>Updated to <a href="http://www.sqlite.org/releaselog/3_7_14.html">SQLite 3.7.14</a>.</li>
      <li>Properly handle quoted data source values in the connection string. Fix for <a href="http://system.data.sqlite.org/index.html/info/8c3bee31c8">[8c3bee31c8]</a>.</li>
      <li>The <a href="http://nuget.org/packages/System.Data.SQLite">primary NuGet package</a> now supports x86 / x64 and the .NET Framework 2.0 / 4.0 (i.e. in a single package).</li>
      <li>Change the default value for the Synchronous connection string property to Full to match the default used by the SQLite core library itself.&nbsp;<b>** Potentially Incompatible Change **</b></li>

Changes to System.Data.SQLite/SQLite3.cs. 

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                //    ////////////////////////////////////
                //}

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

                Close();

                disposed = true;
            }
        }
        finally
        {
            base.Dispose(disposing);
................................................................................

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

    // It isn't necessary to cleanup any functions we've registered.  If the connection
    // goes to the pool and is resurrected later, re-registered functions will overwrite the
    // previous functions.  The SQLiteFunctionCookieHandle will take care of freeing unmanaged
    // resources belonging to the previously-registered functions.
    internal override void Close()
    {
      if (_sql != null)
      {
          if (_usePool)
          {
              SQLiteBase.ResetConnection(_sql, _sql);

              SQLiteConnectionPool.Add(_fileName, _sql, _poolVersion);

#if !NET_COMPACT_20 && TRACE_CONNECTION
              Trace.WriteLine(String.Format("Close (Pool): {0}", _sql));







#endif
          }
          else
          {
              _sql.Dispose();
          }
          _sql = null;








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                //    ////////////////////////////////////
                //}

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

                Close(false); /* Disposing, cannot throw. */

                disposed = true;
            }
        }
        finally
        {
            base.Dispose(disposing);
................................................................................

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

    // It isn't necessary to cleanup any functions we've registered.  If the connection
    // goes to the pool and is resurrected later, re-registered functions will overwrite the
    // previous functions.  The SQLiteFunctionCookieHandle will take care of freeing unmanaged
    // resources belonging to the previously-registered functions.
    internal override void Close(bool canThrow)
    {
      if (_sql != null)
      {
          if (_usePool)
          {
              if (SQLiteBase.ResetConnection(_sql, _sql, canThrow))
              {
                  SQLiteConnectionPool.Add(_fileName, _sql, _poolVersion);

#if !NET_COMPACT_20 && TRACE_CONNECTION
                  Trace.WriteLine(String.Format("Close (Pool) Success: {0}", _sql));
#endif
              }
#if !NET_COMPACT_20 && TRACE_CONNECTION
              else
              {
                  Trace.WriteLine(String.Format("Close (Pool) Failure: {0}", _sql));
              }
#endif
          }
          else
          {
              _sql.Dispose();
          }
          _sql = null;

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

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    /// <summary>
    /// Closes the currently-open database.
    /// </summary>
    /// <remarks>
    /// After the database has been closed implemeters should call SQLiteFunction.UnbindFunctions() to deallocate all interop allocated
    /// memory associated with the user-defined functions and collating sequences tied to the closed connection.
    /// </remarks>

    internal abstract void Close();
    /// <summary>
    /// Sets the busy timeout on the connection.  SQLiteCommand will call this before executing any command.
    /// </summary>
    /// <param name="nTimeoutMS">The number of milliseconds to wait before returning SQLITE_BUSY</param>
    internal abstract void SetTimeout(int nTimeoutMS);
    /// <summary>
    /// Returns the text of the last error issued by SQLite
................................................................................

#if PLATFORM_COMPACTFRAMEWORK
        lock (hdl.syncRoot)
#else
        lock (hdl)
#endif
        {
            if (hdl.IsClosed || hdl.IsInvalid)
                return "closed or invalid connection handle";

#if !SQLITE_STANDARD
            int len;
            return UTF8ToString(UnsafeNativeMethods.sqlite3_errmsg_interop(db, out len), len);
#else
            return UTF8ToString(UnsafeNativeMethods.sqlite3_errmsg(db), -1);
................................................................................
                n = UnsafeNativeMethods.sqlite3_close(db);
            }
#endif
            if (n != SQLiteErrorCode.Ok) throw new SQLiteException(n, GetLastError(hdl, db));
        }
    }

    internal static void ResetConnection(SQLiteConnectionHandle hdl, IntPtr db)
    {
        if ((hdl == null) || (db == IntPtr.Zero)) return;
#if PLATFORM_COMPACTFRAMEWORK
        lock (hdl.syncRoot)
#else
        lock (hdl)
#endif
        {
            if (hdl.IsInvalid)
                throw new InvalidOperationException("The connection handle is invalid.");

            if (hdl.IsClosed)
                throw new InvalidOperationException("The connection handle is closed.");




            IntPtr stmt = IntPtr.Zero;
            SQLiteErrorCode n;
            do
            {
                stmt = UnsafeNativeMethods.sqlite3_next_stmt(db, stmt);
                if (stmt != IntPtr.Zero)
................................................................................
#endif
                }
            } while (stmt != IntPtr.Zero);

            if (IsAutocommit(hdl, db) == false) // a transaction is pending on the connection
            {
                n = UnsafeNativeMethods.sqlite3_exec(db, ToUTF8("ROLLBACK"), IntPtr.Zero, IntPtr.Zero, out stmt);



                if (n != SQLiteErrorCode.Ok) throw new SQLiteException(n, GetLastError(hdl, db));



            }
        }
        GC.KeepAlive(hdl);

    }

    internal static bool IsAutocommit(SQLiteConnectionHandle hdl, IntPtr db)
    {
      if (db == IntPtr.Zero) return false;
      if (hdl.IsClosed || hdl.IsInvalid) return false;
#if PLATFORM_COMPACTFRAMEWORK
      lock (hdl.syncRoot)
#else
      lock (hdl)
#endif
      {

          return (UnsafeNativeMethods.sqlite3_get_autocommit(db) == 1);
      }
#pragma warning disable 162
      GC.KeepAlive(hdl); /* NOTE: Unreachable code. */
#pragma warning restore 162
    }
  }








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    /// <summary>
    /// Closes the currently-open database.
    /// </summary>
    /// <remarks>
    /// After the database has been closed implemeters should call SQLiteFunction.UnbindFunctions() to deallocate all interop allocated
    /// memory associated with the user-defined functions and collating sequences tied to the closed connection.
    /// </remarks>
    /// <param name="canThrow">Non-zero if the operation is allowed to throw exceptions, zero otherwise.</param>
    internal abstract void Close(bool canThrow);
    /// <summary>
    /// Sets the busy timeout on the connection.  SQLiteCommand will call this before executing any command.
    /// </summary>
    /// <param name="nTimeoutMS">The number of milliseconds to wait before returning SQLITE_BUSY</param>
    internal abstract void SetTimeout(int nTimeoutMS);
    /// <summary>
    /// Returns the text of the last error issued by SQLite
................................................................................

#if PLATFORM_COMPACTFRAMEWORK
        lock (hdl.syncRoot)
#else
        lock (hdl)
#endif
        {
            if (hdl.IsInvalid || hdl.IsClosed)
                return "closed or invalid connection handle";

#if !SQLITE_STANDARD
            int len;
            return UTF8ToString(UnsafeNativeMethods.sqlite3_errmsg_interop(db, out len), len);
#else
            return UTF8ToString(UnsafeNativeMethods.sqlite3_errmsg(db), -1);
................................................................................
                n = UnsafeNativeMethods.sqlite3_close(db);
            }
#endif
            if (n != SQLiteErrorCode.Ok) throw new SQLiteException(n, GetLastError(hdl, db));
        }
    }

    internal static bool ResetConnection(SQLiteConnectionHandle hdl, IntPtr db, bool canThrow)
    {
        if ((hdl == null) || (db == IntPtr.Zero)) return false;
#if PLATFORM_COMPACTFRAMEWORK
        lock (hdl.syncRoot)
#else
        lock (hdl)
#endif
        {
            if (canThrow && hdl.IsInvalid)
                throw new InvalidOperationException("The connection handle is invalid.");

            if (canThrow && hdl.IsClosed)
                throw new InvalidOperationException("The connection handle is closed.");

            if (!canThrow && (hdl.IsInvalid || hdl.IsClosed))
                return false;

            IntPtr stmt = IntPtr.Zero;
            SQLiteErrorCode n;
            do
            {
                stmt = UnsafeNativeMethods.sqlite3_next_stmt(db, stmt);
                if (stmt != IntPtr.Zero)
................................................................................
#endif
                }
            } while (stmt != IntPtr.Zero);

            if (IsAutocommit(hdl, db) == false) // a transaction is pending on the connection
            {
                n = UnsafeNativeMethods.sqlite3_exec(db, ToUTF8("ROLLBACK"), IntPtr.Zero, IntPtr.Zero, out stmt);
                if (n != SQLiteErrorCode.Ok)
                {
                    if (canThrow)
                        throw new SQLiteException(n, GetLastError(hdl, db));
                    else
                        return false;
                }
            }
        }
        GC.KeepAlive(hdl);
        return true;
    }

    internal static bool IsAutocommit(SQLiteConnectionHandle hdl, IntPtr db)
    {
      if (db == IntPtr.Zero) return false;

#if PLATFORM_COMPACTFRAMEWORK
      lock (hdl.syncRoot)
#else
      lock (hdl)
#endif
      {
          if (hdl.IsInvalid || hdl.IsClosed) return false;
          return (UnsafeNativeMethods.sqlite3_get_autocommit(db) == 1);
      }
#pragma warning disable 162
      GC.KeepAlive(hdl); /* NOTE: Unreachable code. */
#pragma warning restore 162
    }
  }

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

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    /// </summary>
    private string _connectionString;
    /// <summary>
    /// Nesting level of the transactions open on the connection
    /// </summary>
    internal int _transactionLevel;






    /// <summary>
    /// The default isolation level for new transactions
    /// </summary>
    private IsolationLevel _defaultIsolation;

#if !PLATFORM_COMPACTFRAMEWORK
    /// <summary>
................................................................................
#endif
    }

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

    protected override void Dispose(bool disposing)
    {


        try
        {
            if (!disposed)
            {
                //if (disposing)
                //{
                //    ////////////////////////////////////
................................................................................

          _sql = null;
          _enlistment = null;
        }
#endif
        if (_sql != null)
        {
          _sql.Close();
          _sql = null;
        }
        _transactionLevel = 0;
      }

      StateChangeEventArgs eventArgs = null;
      OnStateChange(ConnectionState.Closed, ref eventArgs);








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    /// </summary>
    private string _connectionString;
    /// <summary>
    /// Nesting level of the transactions open on the connection
    /// </summary>
    internal int _transactionLevel;

    /// <summary>
    /// If set, then the connection is currently being disposed.
    /// </summary>
    private bool _disposing;

    /// <summary>
    /// The default isolation level for new transactions
    /// </summary>
    private IsolationLevel _defaultIsolation;

#if !PLATFORM_COMPACTFRAMEWORK
    /// <summary>
................................................................................
#endif
    }

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

    protected override void Dispose(bool disposing)
    {
        _disposing = true;

        try
        {
            if (!disposed)
            {
                //if (disposing)
                //{
                //    ////////////////////////////////////
................................................................................

          _sql = null;
          _enlistment = null;
        }
#endif
        if (_sql != null)
        {
          _sql.Close(!_disposing);
          _sql = null;
        }
        _transactionLevel = 0;
      }

      StateChangeEventArgs eventArgs = null;
      OnStateChange(ConnectionState.Closed, ref eventArgs);

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

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                    //
                    // BUGFIX: For ticket [996d13cd87], step #3.  Next, verify that
                    //         the connection handle is actually valid and [still?]
                    //         not closed prior to actually returning it to our
                    //         caller.
                    //
                    if (!hdl.IsClosed && !hdl.IsInvalid)
                    {
                        Interlocked.Increment(ref _poolOpened);
                        return hdl;
                    }
                }
                finally
                {








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                    //
                    // BUGFIX: For ticket [996d13cd87], step #3.  Next, verify that
                    //         the connection handle is actually valid and [still?]
                    //         not closed prior to actually returning it to our
                    //         caller.
                    //
                    if (!hdl.IsInvalid && !hdl.IsClosed)
                    {
                        Interlocked.Increment(ref _poolOpened);
                        return hdl;
                    }
                }
                finally
                {

Changes to Tests/stress.eagle. 

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package require System.Data.SQLite.Test
runSQLiteTestPrologue

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

runTest {test stress-1.1 {multithreaded stress testing} -setup {
  unset -nocomplain result thread index workload srcDb db fileName compiled \
      options count

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

  proc expectedError { error } {
    return [expr {[regexp -- {\sno such table: t1\s} $error] || \
        [regexp -- {\sdatabase is locked\s} $error]}]
  }
................................................................................
  }

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

  set count(0) 1
  set count(1) 5
  set count(2) 300


  if {[info exists argv] && [llength $argv] > 0} then {
    parse options -flags \
        {-StopOnUnknown +IgnoreOnUnknown SkipOnUnknown} -- [list \
        [list null MustHaveIntegerValue -1 -1 -count0 $count(0)] \
        [list null MustHaveIntegerValue -1 -1 -count1 $count(1)] \
        [list null MustHaveIntegerValue -1 -1 -count2 $count(2)]] $argv


    set count(0) $options(-count0,value)
    set count(1) $options(-count1,value)
    set count(2) $options(-count2,value)

  }

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

  tputs $test_channel [appendArgs \
      "---- workloads will repeat " $count(0) " time(s)...\n"]

  tputs $test_channel [appendArgs \
      "---- workloads will have " $count(1) " iteration(s)...\n"]

  tputs $test_channel [appendArgs \
      "---- workloads will wait at least " $count(2) " millisecond(s)...\n"]






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

  set compiled(12) ""
  set compiled(13) ""

  #############################################################################
................................................................................
} -body {
  for {set index(0) 0} {$index(0) < $count(0)} {incr index(0)} {
    sql execute $db "CREATE TABLE IF NOT EXISTS t1(x PRIMARY KEY, y, z);"

    unset -nocomplain thread

    foreach index(1) [lsort -integer [array names workload]] {

      set thread($index(1)) [object create -alias System.Threading.Thread \
          [list apply $workload($index(1)) $fileName(1) $fileName(2) t1 \
          $count(1)]]

    }

    foreach index(1) [list Start Join] {
      foreach index(2) [array names thread] {
        $thread($index(2)) $index(1)
      }
    }
................................................................................
  foreach index(0) [array names workload] {
    catch {
      object removecallback [list apply $workload($index(0)) $fileName(1) \
          $fileName(2) t1 $count(1)]
    }
  }

  unset -nocomplain result thread index workload srcDb db fileName compiled \
      options count times
} -constraints \
{eagle monoBug28 command.sql compile.DATA SQLite System.Data.SQLite} -result {}}

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

runSQLiteTestEpilogue
runTestEpilogue








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package require System.Data.SQLite.Test
runSQLiteTestPrologue

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

runTest {test stress-1.1 {multithreaded stress testing} -setup {
  unset -nocomplain result thread index workload noWorkload srcDb db \
      fileName compiled options count

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

  proc expectedError { error } {
    return [expr {[regexp -- {\sno such table: t1\s} $error] || \
        [regexp -- {\sdatabase is locked\s} $error]}]
  }
................................................................................
  }

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

  set count(0) 1
  set count(1) 5
  set count(2) 300
  set noWorkload [list]

  if {[info exists argv] && [llength $argv] > 0} then {
    parse options -flags \
        {-StopOnUnknown +IgnoreOnUnknown SkipOnUnknown} -- [list \
        [list null MustHaveIntegerValue -1 -1 -count0 $count(0)] \
        [list null MustHaveIntegerValue -1 -1 -count1 $count(1)] \
        [list null MustHaveIntegerValue -1 -1 -count2 $count(2)] \
        [list null MustHaveListValue -1 -1 -noWorkload $noWorkload]] $argv

    set count(0) $options(-count0,value)
    set count(1) $options(-count1,value)
    set count(2) $options(-count2,value)
    set noWorkload $options(-noWorkload,value)
  }

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

  tputs $test_channel [appendArgs \
      "---- workloads will repeat " $count(0) " time(s)...\n"]

  tputs $test_channel [appendArgs \
      "---- workloads will have " $count(1) " iteration(s)...\n"]

  tputs $test_channel [appendArgs \
      "---- workloads will wait at least " $count(2) " millisecond(s)...\n"]

  if {[llength $noWorkload] > 0} then {
    tputs $test_channel [appendArgs \
        "---- workloads to be skipped... " $noWorkload \n]
  }

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

  set compiled(12) ""
  set compiled(13) ""

  #############################################################################
................................................................................
} -body {
  for {set index(0) 0} {$index(0) < $count(0)} {incr index(0)} {
    sql execute $db "CREATE TABLE IF NOT EXISTS t1(x PRIMARY KEY, y, z);"

    unset -nocomplain thread

    foreach index(1) [lsort -integer [array names workload]] {
      if {[lsearch -exact $noWorkload $index(1)] == -1} then {
        set thread($index(1)) [object create -alias System.Threading.Thread \
            [list apply $workload($index(1)) $fileName(1) $fileName(2) t1 \
            $count(1)]]
      }
    }

    foreach index(1) [list Start Join] {
      foreach index(2) [array names thread] {
        $thread($index(2)) $index(1)
      }
    }
................................................................................
  foreach index(0) [array names workload] {
    catch {
      object removecallback [list apply $workload($index(0)) $fileName(1) \
          $fileName(2) t1 $count(1)]
    }
  }

  unset -nocomplain result thread index workload noWorkload srcDb db \
      fileName compiled options count times
} -constraints \
{eagle monoBug28 command.sql compile.DATA SQLite System.Data.SQLite} -result {}}

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

runSQLiteTestEpilogue
runTestEpilogue

Changes to readme.htm. 

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    <li>Make the test project for the .NET Compact Framework more flexible.</li>
    <li>When available, the new sqlite3_errstr function from the core library is used to get the error message for a specific return code.</li>
    <li>The SetMemoryStatus, Shutdown, ResultCode, ExtendedResultCode, and SetAvRetry methods of the SQLiteConnection class now return a SQLiteErrorCode instead of an integer error code.&nbsp;<b>** Potentially Incompatible Change **</b></li>
    <li>The public constructor for the SQLiteException now takes a SQLiteErrorCode instead of an integer error code.&nbsp;<b>** Potentially Incompatible Change **</b></li>
    <li>The ErrorCode property of the SQLiteException is now an Int32, to allow the property inherited from the base class to be properly overridden.&nbsp;<b>** Potentially Incompatible Change **</b></li>
    <li>The ErrorCode field of the LogEventArgs is now an object instead of an integer.&nbsp;<b>** Potentially Incompatible Change **</b></li>
    <li>The names and messages associated with the SQLiteErrorCode enumeration values have been normalized to match those in the SQLite core library.&nbsp;<b>** Potentially Incompatible Change **</b></li>



</ul>
<p>
    <b>1.0.82.0 - September 3, 2012</b>
</p>
<ul>
    <li>Updated to <a href="http://www.sqlite.org/releaselog/3_7_14.html">SQLite 3.7.14</a>.</li>
    <li>Properly handle quoted data source values in the connection string. Fix for [8c3bee31c8].</li>








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>








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    <li>Make the test project for the .NET Compact Framework more flexible.</li>
    <li>When available, the new sqlite3_errstr function from the core library is used to get the error message for a specific return code.</li>
    <li>The SetMemoryStatus, Shutdown, ResultCode, ExtendedResultCode, and SetAvRetry methods of the SQLiteConnection class now return a SQLiteErrorCode instead of an integer error code.&nbsp;<b>** Potentially Incompatible Change **</b></li>
    <li>The public constructor for the SQLiteException now takes a SQLiteErrorCode instead of an integer error code.&nbsp;<b>** Potentially Incompatible Change **</b></li>
    <li>The ErrorCode property of the SQLiteException is now an Int32, to allow the property inherited from the base class to be properly overridden.&nbsp;<b>** Potentially Incompatible Change **</b></li>
    <li>The ErrorCode field of the LogEventArgs is now an object instead of an integer.&nbsp;<b>** Potentially Incompatible Change **</b></li>
    <li>The names and messages associated with the SQLiteErrorCode enumeration values have been normalized to match those in the SQLite core library.&nbsp;<b>** Potentially Incompatible Change **</b></li>
    <li>Implement more robust locking semantics for the CriticalHandle derived classes when compiled for the .NET Compact Framework.</li>
    <li>Cache column indexes are they are looked up when using the SQLiteDataReader to improve performance.</li>
    <li>Prevent the SQLiteConnection.Close method from throwing non-fatal exceptions during its disposal.</li>
</ul>
<p>
    <b>1.0.82.0 - September 3, 2012</b>
</p>
<ul>
    <li>Updated to <a href="http://www.sqlite.org/releaselog/3_7_14.html">SQLite 3.7.14</a>.</li>
    <li>Properly handle quoted data source values in the connection string. Fix for [8c3bee31c8].</li>

Changes to www/news.wiki. 

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    <li>Make the test project for the .NET Compact Framework more flexible.</li>
    <li>When available, the new sqlite3_errstr function from the core library is used to get the error message for a specific return code.</li>
    <li>The SetMemoryStatus, Shutdown, ResultCode, ExtendedResultCode, and SetAvRetry methods of the SQLiteConnection class now return a SQLiteErrorCode instead of an integer error code.&nbsp;<b>** Potentially Incompatible Change **</b></li>
    <li>The public constructor for the SQLiteException now takes a SQLiteErrorCode instead of an integer error code.&nbsp;<b>** Potentially Incompatible Change **</b></li>
    <li>The ErrorCode property of the SQLiteException is now an Int32, to allow the property inherited from the base class to be properly overridden.&nbsp;<b>** Potentially Incompatible Change **</b></li>
    <li>The ErrorCode field of the LogEventArgs is now an object instead of an integer.&nbsp;<b>** Potentially Incompatible Change **</b></li>
    <li>The names and messages associated with the SQLiteErrorCode enumeration values have been normalized to match those in the SQLite core library.&nbsp;<b>** Potentially Incompatible Change **</b></li>



</ul>
<p>
    <b>1.0.82.0 - September 3, 2012</b>
</p>
<ul>
    <li>Updated to [http://www.sqlite.org/releaselog/3_7_14.html|SQLite 3.7.14].</li>
    <li>Properly handle quoted data source values in the connection string. Fix for [8c3bee31c8].</li>








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>








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    <li>Make the test project for the .NET Compact Framework more flexible.</li>
    <li>When available, the new sqlite3_errstr function from the core library is used to get the error message for a specific return code.</li>
    <li>The SetMemoryStatus, Shutdown, ResultCode, ExtendedResultCode, and SetAvRetry methods of the SQLiteConnection class now return a SQLiteErrorCode instead of an integer error code.&nbsp;<b>** Potentially Incompatible Change **</b></li>
    <li>The public constructor for the SQLiteException now takes a SQLiteErrorCode instead of an integer error code.&nbsp;<b>** Potentially Incompatible Change **</b></li>
    <li>The ErrorCode property of the SQLiteException is now an Int32, to allow the property inherited from the base class to be properly overridden.&nbsp;<b>** Potentially Incompatible Change **</b></li>
    <li>The ErrorCode field of the LogEventArgs is now an object instead of an integer.&nbsp;<b>** Potentially Incompatible Change **</b></li>
    <li>The names and messages associated with the SQLiteErrorCode enumeration values have been normalized to match those in the SQLite core library.&nbsp;<b>** Potentially Incompatible Change **</b></li>
    <li>Implement more robust locking semantics for the CriticalHandle derived classes when compiled for the .NET Compact Framework.</li>
    <li>Cache column indexes are they are looked up when using the SQLiteDataReader to improve performance.</li>
    <li>Prevent the SQLiteConnection.Close method from throwing non-fatal exceptions during its disposal.</li>
</ul>
<p>
    <b>1.0.82.0 - September 3, 2012</b>
</p>
<ul>
    <li>Updated to [http://www.sqlite.org/releaselog/3_7_14.html|SQLite 3.7.14].</li>
    <li>Properly handle quoted data source values in the connection string. Fix for [8c3bee31c8].</li>

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