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1723
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1727
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1729
1730
1731
1732
1733
|
1439
1440
1441
1442
1443
1444
1445
1446
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1448
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1454
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|
+
+
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-
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|
get;
}
}
#endif
///////////////////////////////////////////////////////////////////////////
#region SQLiteConnectionHandle Class
// Handles the unmanaged database pointer, and provides finalization support for it.
internal class SQLiteConnectionHandle : CriticalHandle
{
public static implicit operator IntPtr(SQLiteConnectionHandle db)
{
return (db != null) ? db.handle : IntPtr.Zero;
}
internal SQLiteConnectionHandle(IntPtr db)
: this()
{
SetHandle(db);
}
private SQLiteConnectionHandle()
: base(IntPtr.Zero)
{
}
// Handles the unmanaged database pointer, and provides finalization
// support for it.
internal class SQLiteConnectionHandle : CriticalHandle
{
#if PLATFORM_COMPACTFRAMEWORK
private readonly object syncRoot = new object();
#endif
///////////////////////////////////////////////////////////////////////
public static implicit operator IntPtr(SQLiteConnectionHandle db)
{
if (db != null)
{
#if PLATFORM_COMPACTFRAMEWORK
lock (db.syncRoot)
#endif
{
return db.handle;
}
}
return IntPtr.Zero;
}
///////////////////////////////////////////////////////////////////////
internal SQLiteConnectionHandle(IntPtr db)
: this()
{
#if PLATFORM_COMPACTFRAMEWORK
lock (syncRoot)
#endif
{
SetHandle(db);
}
}
///////////////////////////////////////////////////////////////////////
private SQLiteConnectionHandle()
: base(IntPtr.Zero)
{
}
///////////////////////////////////////////////////////////////////////
protected override bool ReleaseHandle()
{
try
{
protected override bool ReleaseHandle()
{
try
{
#if !PLATFORM_COMPACTFRAMEWORK
IntPtr localHandle = Interlocked.Exchange(
ref handle, IntPtr.Zero);
IntPtr localHandle = Interlocked.Exchange(
ref handle, IntPtr.Zero);
if (localHandle != IntPtr.Zero)
SQLiteBase.CloseConnection(this, localHandle);
if (localHandle != IntPtr.Zero)
SQLiteBase.CloseConnection(this, localHandle);
#if !NET_COMPACT_20 && TRACE_HANDLE
try
{
Trace.WriteLine(String.Format(
"CloseConnection: {0}", localHandle));
}
catch
{
}
try
{
Trace.WriteLine(String.Format(
"CloseConnection: {0}", localHandle));
}
catch
{
}
#endif
#else
lock (syncRoot)
{
if (handle != IntPtr.Zero)
{
SQLiteBase.CloseConnection(this, handle);
SetHandle(IntPtr.Zero);
}
if (handle != IntPtr.Zero)
{
SQLiteBase.CloseConnection(this, handle);
SetHandle(IntPtr.Zero);
}
#endif
return true;
return true;
#endif
}
}
#if !NET_COMPACT_20 && TRACE_HANDLE
catch (SQLiteException e)
catch (SQLiteException e)
#else
catch (SQLiteException)
catch (SQLiteException)
#endif
{
{
#if !NET_COMPACT_20 && TRACE_HANDLE
try
{
Trace.WriteLine(String.Format(
"CloseConnection: {0}, exception: {1}",
handle, e));
}
catch
{
}
try
{
Trace.WriteLine(String.Format(
"CloseConnection: {0}, exception: {1}",
handle, e));
}
catch
{
}
#endif
}
finally
{
SetHandleAsInvalid();
}
}
finally
{
#if PLATFORM_COMPACTFRAMEWORK
lock (syncRoot)
#endif
{
SetHandleAsInvalid();
}
}
#if DEBUG
return false;
return false;
#else
return true;
return true;
#endif
}
}
///////////////////////////////////////////////////////////////////////
public override bool IsInvalid
{
get { return (handle == IntPtr.Zero); }
}
public override bool IsInvalid
{
get
{
#if PLATFORM_COMPACTFRAMEWORK
lock (syncRoot)
#endif
{
return (handle == IntPtr.Zero);
}
}
}
///////////////////////////////////////////////////////////////////////
#if DEBUG
public override string ToString()
{
return handle.ToString();
}
public override string ToString()
{
#if PLATFORM_COMPACTFRAMEWORK
lock (syncRoot)
#endif
{
return handle.ToString();
}
}
#endif
}
}
#endregion
///////////////////////////////////////////////////////////////////////////
#region SQLiteStatementHandle Class
// Provides finalization support for unmanaged SQLite statements.
internal class SQLiteStatementHandle : CriticalHandle
{
#if PLATFORM_COMPACTFRAMEWORK
private readonly object syncRoot = new object();
#endif
// Provides finalization support for unmanaged SQLite statements.
internal class SQLiteStatementHandle : CriticalHandle
{
private SQLiteConnectionHandle cnn;
public static implicit operator IntPtr(SQLiteStatementHandle stmt)
{
return (stmt != null) ? stmt.handle : IntPtr.Zero;
}
internal SQLiteStatementHandle(SQLiteConnectionHandle cnn, IntPtr stmt)
: this()
{
this.cnn = cnn;
SetHandle(stmt);
}
public static implicit operator IntPtr(SQLiteStatementHandle stmt)
{
if (stmt != null)
{
#if PLATFORM_COMPACTFRAMEWORK
lock (stmt.syncRoot)
#endif
{
return stmt.handle;
}
}
return IntPtr.Zero;
}
///////////////////////////////////////////////////////////////////////
internal SQLiteStatementHandle(SQLiteConnectionHandle cnn, IntPtr stmt)
: this()
{
#if PLATFORM_COMPACTFRAMEWORK
lock (syncRoot)
#endif
{
this.cnn = cnn;
SetHandle(stmt);
}
}
///////////////////////////////////////////////////////////////////////
private SQLiteStatementHandle()
: base(IntPtr.Zero)
{
}
private SQLiteStatementHandle()
: base(IntPtr.Zero)
{
}
///////////////////////////////////////////////////////////////////////
protected override bool ReleaseHandle()
{
try
{
protected override bool ReleaseHandle()
{
try
{
#if !PLATFORM_COMPACTFRAMEWORK
IntPtr localHandle = Interlocked.Exchange(
ref handle, IntPtr.Zero);
IntPtr localHandle = Interlocked.Exchange(
ref handle, IntPtr.Zero);
if (localHandle != IntPtr.Zero)
SQLiteBase.FinalizeStatement(cnn, localHandle);
if (localHandle != IntPtr.Zero)
SQLiteBase.FinalizeStatement(cnn, localHandle);
#if !NET_COMPACT_20 && TRACE_HANDLE
try
{
Trace.WriteLine(String.Format(
"FinalizeStatement: {0}", localHandle));
}
catch
{
}
try
{
Trace.WriteLine(String.Format(
"FinalizeStatement: {0}", localHandle));
}
catch
{
}
#endif
#else
lock (syncRoot)
{
if (handle != IntPtr.Zero)
{
SQLiteBase.FinalizeStatement(cnn, handle);
SetHandle(IntPtr.Zero);
}
if (handle != IntPtr.Zero)
{
SQLiteBase.FinalizeStatement(cnn, handle);
SetHandle(IntPtr.Zero);
}
#endif
return true;
return true;
#endif
}
}
#if !NET_COMPACT_20 && TRACE_HANDLE
catch (SQLiteException e)
catch (SQLiteException e)
#else
catch (SQLiteException)
catch (SQLiteException)
#endif
{
{
#if !NET_COMPACT_20 && TRACE_HANDLE
try
{
Trace.WriteLine(String.Format(
"FinalizeStatement: {0}, exception: {1}",
handle, e));
}
catch
{
}
try
{
Trace.WriteLine(String.Format(
"FinalizeStatement: {0}, exception: {1}",
handle, e));
}
catch
{
}
#endif
}
finally
{
SetHandleAsInvalid();
}
}
finally
{
#if PLATFORM_COMPACTFRAMEWORK
lock (syncRoot)
#endif
{
SetHandleAsInvalid();
}
}
#if DEBUG
return false;
return false;
#else
return true;
return true;
#endif
}
}
///////////////////////////////////////////////////////////////////////
public override bool IsInvalid
{
get { return (handle == IntPtr.Zero); }
}
public override bool IsInvalid
{
get
{
#if PLATFORM_COMPACTFRAMEWORK
lock (syncRoot)
#endif
{
return (handle == IntPtr.Zero);
}
}
}
///////////////////////////////////////////////////////////////////////
#if DEBUG
public override string ToString()
{
return handle.ToString();
}
public override string ToString()
{
#if PLATFORM_COMPACTFRAMEWORK
lock (syncRoot)
#endif
{
return handle.ToString();
}
}
#endif
}
}
#endregion
///////////////////////////////////////////////////////////////////////////
#region SQLiteBackupHandle Class
// Provides finalization support for unmanaged SQLite backup objects.
internal class SQLiteBackupHandle : CriticalHandle
{
#if PLATFORM_COMPACTFRAMEWORK
private readonly object syncRoot = new object();
#endif
// Provides finalization support for unmanaged SQLite backup objects.
internal class SQLiteBackupHandle : CriticalHandle
{
private SQLiteConnectionHandle cnn;
public static implicit operator IntPtr(SQLiteBackupHandle backup)
{
return (backup != null) ? backup.handle : IntPtr.Zero;
}
internal SQLiteBackupHandle(SQLiteConnectionHandle cnn, IntPtr backup)
: this()
{
this.cnn = cnn;
SetHandle(backup);
}
public static implicit operator IntPtr(SQLiteBackupHandle backup)
{
if (backup != null)
{
#if PLATFORM_COMPACTFRAMEWORK
lock (backup.syncRoot)
#endif
{
return backup.handle;
}
}
return IntPtr.Zero;
}
///////////////////////////////////////////////////////////////////////
internal SQLiteBackupHandle(SQLiteConnectionHandle cnn, IntPtr backup)
: this()
{
#if PLATFORM_COMPACTFRAMEWORK
lock (syncRoot)
#endif
{
this.cnn = cnn;
SetHandle(backup);
}
}
///////////////////////////////////////////////////////////////////////
private SQLiteBackupHandle()
: base(IntPtr.Zero)
{
}
private SQLiteBackupHandle()
: base(IntPtr.Zero)
{
}
///////////////////////////////////////////////////////////////////////
protected override bool ReleaseHandle()
{
try
{
protected override bool ReleaseHandle()
{
try
{
#if !PLATFORM_COMPACTFRAMEWORK
IntPtr localHandle = Interlocked.Exchange(
ref handle, IntPtr.Zero);
IntPtr localHandle = Interlocked.Exchange(
ref handle, IntPtr.Zero);
if (localHandle != IntPtr.Zero)
SQLiteBase.FinishBackup(cnn, localHandle);
if (localHandle != IntPtr.Zero)
SQLiteBase.FinishBackup(cnn, localHandle);
#if !NET_COMPACT_20 && TRACE_HANDLE
try
{
Trace.WriteLine(String.Format(
"FinishBackup: {0}", localHandle));
}
catch
{
}
try
{
Trace.WriteLine(String.Format(
"FinishBackup: {0}", localHandle));
}
catch
{
}
#endif
#else
lock (syncRoot)
{
if (handle != IntPtr.Zero)
{
SQLiteBase.FinishBackup(cnn, handle);
SetHandle(IntPtr.Zero);
}
if (handle != IntPtr.Zero)
{
SQLiteBase.FinishBackup(cnn, handle);
SetHandle(IntPtr.Zero);
}
#endif
return true;
return true;
#endif
}
}
#if !NET_COMPACT_20 && TRACE_HANDLE
catch (SQLiteException e)
catch (SQLiteException e)
#else
catch (SQLiteException)
catch (SQLiteException)
#endif
{
{
#if !NET_COMPACT_20 && TRACE_HANDLE
try
{
Trace.WriteLine(String.Format(
"FinishBackup: {0}, exception: {1}",
handle, e));
}
catch
{
}
try
{
Trace.WriteLine(String.Format(
"FinishBackup: {0}, exception: {1}",
handle, e));
}
catch
{
}
#endif
}
finally
{
SetHandleAsInvalid();
}
}
finally
{
#if PLATFORM_COMPACTFRAMEWORK
lock (syncRoot)
#endif
{
SetHandleAsInvalid();
}
}
#if DEBUG
return false;
return false;
#else
return true;
return true;
#endif
}
}
///////////////////////////////////////////////////////////////////////
public override bool IsInvalid
{
get { return (handle == IntPtr.Zero); }
}
public override bool IsInvalid
{
get
{
#if PLATFORM_COMPACTFRAMEWORK
lock (syncRoot)
#endif
{
return (handle == IntPtr.Zero);
}
}
}
///////////////////////////////////////////////////////////////////////
#if DEBUG
public override string ToString()
{
return handle.ToString();
}
public override string ToString()
{
#if PLATFORM_COMPACTFRAMEWORK
lock (syncRoot)
#endif
{
return handle.ToString();
}
}
#endif
}
}
#endregion
}
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