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Overview
| Comment: | Further work on the SQLiteMemoryChangeSet class. |
|---|---|
| Downloads: | Tarball | ZIP archive | SQL archive |
| Timelines: | family | ancestors | descendants | both | sessions |
| Files: | files | file ages | folders |
| SHA1: |
5dc5e48cb0e23b01309686308d579553 |
| User & Date: | mistachkin 2017-10-06 15:51:58 |
Context
|
2017-10-06
| ||
| 16:04 | Further work on the SQLiteStreamChangeSet class. check-in: b1e6a036bb user: mistachkin tags: sessions | |
| 15:51 | Further work on the SQLiteMemoryChangeSet class. check-in: 5dc5e48cb0 user: mistachkin tags: sessions | |
|
2017-10-05
| ||
| 23:10 | Cleanup integration between the session extension classes and the SQLiteConnection class. check-in: 7529b50e97 user: mistachkin tags: sessions | |
Changes
Changes to System.Data.SQLite/SQLiteSessions.cs.
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this.flags = flags;
this.isPatchSet = isPatchSet;
}
#endregion
///////////////////////////////////////////////////////////////////////
#region ISQLiteChangeSet Members
public bool? IsPatchSet
{
get { CheckDisposed(); return isPatchSet; }
}
///////////////////////////////////////////////////////////////////////
public ISQLiteChangeSet Invert()
{
CheckDisposed();
throw new NotImplementedException();
}
///////////////////////////////////////////////////////////////////////
public ISQLiteChangeSet CombineWith(
ISQLiteChangeSet changeSet
)
{
CheckDisposed();
throw new NotImplementedException();
}
///////////////////////////////////////////////////////////////////////
public void Apply(
SessionConflictCallback conflictCallback,
object clientData
................................................................................
public void Apply(
SessionConflictCallback conflictCallback,
SessionTableFilterCallback tableFilterCallback,
object clientData
)
{
if (conflictCallback == null)
throw new ArgumentNullException("conflictCallback");
CheckDisposed();
UnsafeNativeMethods.xSessionFilter xFilter = null;
if (tableFilterCallback != null)
{
xFilter = new UnsafeNativeMethods.xSessionFilter(
delegate(IntPtr context, byte[] tblName)
{
................................................................................
// do nothing.
}
}
return SQLiteChangeSetConflictResult.Abort;
});
int nData = 0;
IntPtr pData = IntPtr.Zero;
SQLiteErrorCode rc = UnsafeNativeMethods.sqlite3changeset_apply(
handle, nData, pData, xFilter, xConflict, IntPtr.Zero);
if (rc != SQLiteErrorCode.Ok)
throw new SQLiteException(rc, "sqlite3changeset_apply");
}
#endregion
///////////////////////////////////////////////////////////////////////
#region IEnumerable<ISQLiteChangeSetMetadataItem> Members
public IEnumerator<ISQLiteChangeSetMetadataItem> GetEnumerator()
|
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this.flags = flags;
this.isPatchSet = isPatchSet;
}
#endregion
///////////////////////////////////////////////////////////////////////
#region Private Methods
private void CheckRawData()
{
if (rawData == null)
throw new InvalidOperationException("no change set data");
}
#endregion
///////////////////////////////////////////////////////////////////////
#region ISQLiteChangeSet Members
public bool? IsPatchSet
{
get { CheckDisposed(); return isPatchSet; }
}
///////////////////////////////////////////////////////////////////////
public ISQLiteChangeSet Invert()
{
CheckDisposed();
CheckRawData();
IntPtr pInData = IntPtr.Zero;
IntPtr pOutData = IntPtr.Zero;
try
{
int nInData = 0;
pInData = SQLiteBytes.ToIntPtr(rawData, ref nInData);
int nOutData = 0;
SQLiteErrorCode rc = UnsafeNativeMethods.sqlite3changeset_invert(
nInData, pInData, ref nOutData, ref pOutData);
if (rc != SQLiteErrorCode.Ok)
throw new SQLiteException(rc, "sqlite3changeset_invert");
byte[] newData = SQLiteBytes.FromIntPtr(pOutData, nOutData);
return new SQLiteMemoryChangeSet(
newData, handle, flags, isPatchSet);
}
finally
{
if (pOutData != IntPtr.Zero)
{
SQLiteMemory.Free(pOutData);
pOutData = IntPtr.Zero;
}
if (pInData != IntPtr.Zero)
{
SQLiteMemory.Free(pInData);
pInData = IntPtr.Zero;
}
}
}
///////////////////////////////////////////////////////////////////////
public ISQLiteChangeSet CombineWith(
ISQLiteChangeSet changeSet
)
{
CheckDisposed();
CheckRawData();
SQLiteMemoryChangeSet memoryChangeSet =
changeSet as SQLiteMemoryChangeSet;
if (memoryChangeSet == null)
{
throw new ArgumentException(
"not a memory based change set", "changeSet");
}
memoryChangeSet.CheckRawData();
IntPtr pInData1 = IntPtr.Zero;
IntPtr pInData2 = IntPtr.Zero;
IntPtr pOutData = IntPtr.Zero;
try
{
int nInData1 = 0;
pInData1 = SQLiteBytes.ToIntPtr(rawData, ref nInData1);
int nInData2 = 0;
pInData2 = SQLiteBytes.ToIntPtr(
memoryChangeSet.rawData, ref nInData2);
int nOutData = 0;
SQLiteErrorCode rc = UnsafeNativeMethods.sqlite3changeset_concat(
nInData1, pInData1, nInData2, pInData2, ref nOutData,
ref pOutData);
if (rc != SQLiteErrorCode.Ok)
throw new SQLiteException(rc, "sqlite3changeset_concat");
byte[] newData = SQLiteBytes.FromIntPtr(pOutData, nOutData);
return new SQLiteMemoryChangeSet(
newData, handle, flags, isPatchSet);
}
finally
{
if (pOutData != IntPtr.Zero)
{
SQLiteMemory.Free(pOutData);
pOutData = IntPtr.Zero;
}
if (pInData2 != IntPtr.Zero)
{
SQLiteMemory.Free(pInData2);
pInData2 = IntPtr.Zero;
}
if (pInData1 != IntPtr.Zero)
{
SQLiteMemory.Free(pInData1);
pInData1 = IntPtr.Zero;
}
}
}
///////////////////////////////////////////////////////////////////////
public void Apply(
SessionConflictCallback conflictCallback,
object clientData
................................................................................
public void Apply(
SessionConflictCallback conflictCallback,
SessionTableFilterCallback tableFilterCallback,
object clientData
)
{
CheckDisposed();
CheckRawData();
if (conflictCallback == null)
throw new ArgumentNullException("conflictCallback");
UnsafeNativeMethods.xSessionFilter xFilter = null;
if (tableFilterCallback != null)
{
xFilter = new UnsafeNativeMethods.xSessionFilter(
delegate(IntPtr context, byte[] tblName)
{
................................................................................
// do nothing.
}
}
return SQLiteChangeSetConflictResult.Abort;
});
IntPtr pData = IntPtr.Zero;
try
{
int nData = 0;
pData = SQLiteBytes.ToIntPtr(rawData, ref nData);
SQLiteErrorCode rc = UnsafeNativeMethods.sqlite3changeset_apply(
handle, nData, pData, xFilter, xConflict, IntPtr.Zero);
if (rc != SQLiteErrorCode.Ok)
throw new SQLiteException(rc, "sqlite3changeset_apply");
}
finally
{
if (pData != IntPtr.Zero)
{
SQLiteMemory.Free(pData);
pData = IntPtr.Zero;
}
}
}
#endregion
///////////////////////////////////////////////////////////////////////
#region IEnumerable<ISQLiteChangeSetMetadataItem> Members
public IEnumerator<ISQLiteChangeSetMetadataItem> GetEnumerator()
|