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Overview
| Comment: | Move the static SQLiteValue marshalling method into the SQLiteValue class itself. |
|---|---|
| Downloads: | Tarball | ZIP archive | SQL archive |
| Timelines: | family | ancestors | descendants | both | trunk |
| Files: | files | file ages | folders |
| SHA1: |
bd1c5de6ecc7f5ef250b190943aad863 |
| User & Date: | mistachkin 2013-07-05 22:36:10 |
Context
|
2013-07-05
| ||
| 22:44 | Also move the static SQLiteIndex marshalling methods into the SQLiteIndex class itself. check-in: 82d24cdca3 user: mistachkin tags: trunk | |
| 22:36 | Move the static SQLiteValue marshalling method into the SQLiteValue class itself. check-in: bd1c5de6ec user: mistachkin tags: trunk | |
| 02:10 | Adjustments to the #if directives related to the vtshim extension module. check-in: f680c43ce0 user: mistachkin tags: trunk | |
Changes
Changes to System.Data.SQLite/SQLiteModule.cs.
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/// <summary>
/// Constructs an instance of this class using the specified native
/// value handle.
/// </summary>
/// <param name="pValue">
/// The native value handle to use.
/// </param>
internal SQLiteValue(IntPtr pValue)
{
this.pValue = pValue;
}
#endregion
///////////////////////////////////////////////////////////////////////
................................................................................
/// access to it from this object instance.
/// </summary>
private void PreventNativeAccess()
{
pValue = IntPtr.Zero;
}
#endregion
///////////////////////////////////////////////////////////////////////
#region ISQLiteNativeHandle Members
/// <summary>
/// Returns the underlying SQLite native handle associated with this
/// object instance.
................................................................................
Marshal.WriteIntPtr(IntPtrForOffset(pointer, offset), value);
#endif
}
#endregion
///////////////////////////////////////////////////////////////////////
#region SQLiteValue Helper Methods
/// <summary>
/// Converts a logical array of native pointers to native sqlite3_value
/// structures into a managed array of <see cref="SQLiteValue" />
/// object instances.
/// </summary>
/// <param name="argc">
/// The number of elements in the logical array of native sqlite3_value
/// structures.
/// </param>
/// <param name="argv">
/// The native pointer to the logical array of native sqlite3_value
/// structures to convert.
/// </param>
/// <returns>
/// The managed array of <see cref="SQLiteValue" /> object instances or
/// null upon failure.
/// </returns>
public static SQLiteValue[] ValueArrayFromSizeAndIntPtr(
int argc,
IntPtr argv
)
{
if (argc < 0)
return null;
if (argv == IntPtr.Zero)
return null;
SQLiteValue[] result = new SQLiteValue[argc];
for (int index = 0, offset = 0;
index < result.Length;
index++, offset += IntPtr.Size)
{
IntPtr pArg = ReadIntPtr(argv, offset);
result[index] = (pArg != IntPtr.Zero) ?
new SQLiteValue(pArg) : null;
}
return result;
}
#endregion
///////////////////////////////////////////////////////////////////////
#region SQLiteIndex Helper Methods
/// <summary>
/// Converts a native pointer to a native sqlite3_index_info structure
/// into a new <see cref="SQLiteIndex" /> object instance.
/// </summary>
/// <param name="pIndex">
/// The native pointer to the native sqlite3_index_info structure to
................................................................................
SQLiteVirtualTableCursor cursor = CursorFromIntPtr(
pVtab, pCursor);
if (cursor != null)
{
if (Filter(cursor, idxNum,
SQLiteString.StringFromUtf8IntPtr(idxStr),
SQLiteMarshal.ValueArrayFromSizeAndIntPtr(argc,
argv)) == SQLiteErrorCode.Ok)
{
return SQLiteErrorCode.Ok;
}
}
}
catch (Exception e) /* NOTE: Must catch ALL. */
................................................................................
{
try
{
SQLiteVirtualTable table = TableFromIntPtr(pVtab);
if (table != null)
{
return Update(
table, SQLiteMarshal.ValueArrayFromSizeAndIntPtr(
argc, argv), ref rowId);
}
}
catch (Exception e) /* NOTE: Must catch ALL. */
{
SetTableError(pVtab, e.ToString());
}
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/// <summary>
/// Constructs an instance of this class using the specified native
/// value handle.
/// </summary>
/// <param name="pValue">
/// The native value handle to use.
/// </param>
private SQLiteValue(IntPtr pValue)
{
this.pValue = pValue;
}
#endregion
///////////////////////////////////////////////////////////////////////
................................................................................
/// access to it from this object instance.
/// </summary>
private void PreventNativeAccess()
{
pValue = IntPtr.Zero;
}
#endregion
///////////////////////////////////////////////////////////////////////
#region Internal Methods
/// <summary>
/// Converts a logical array of native pointers to native sqlite3_value
/// structures into a managed array of <see cref="SQLiteValue" />
/// object instances.
/// </summary>
/// <param name="argc">
/// The number of elements in the logical array of native sqlite3_value
/// structures.
/// </param>
/// <param name="argv">
/// The native pointer to the logical array of native sqlite3_value
/// structures to convert.
/// </param>
/// <returns>
/// The managed array of <see cref="SQLiteValue" /> object instances or
/// null upon failure.
/// </returns>
internal static SQLiteValue[] ArrayFromSizeAndIntPtr(
int argc,
IntPtr argv
)
{
if (argc < 0)
return null;
if (argv == IntPtr.Zero)
return null;
SQLiteValue[] result = new SQLiteValue[argc];
for (int index = 0, offset = 0;
index < result.Length;
index++, offset += IntPtr.Size)
{
IntPtr pArg = SQLiteMarshal.ReadIntPtr(argv, offset);
result[index] = (pArg != IntPtr.Zero) ?
new SQLiteValue(pArg) : null;
}
return result;
}
#endregion
///////////////////////////////////////////////////////////////////////
#region ISQLiteNativeHandle Members
/// <summary>
/// Returns the underlying SQLite native handle associated with this
/// object instance.
................................................................................
Marshal.WriteIntPtr(IntPtrForOffset(pointer, offset), value);
#endif
}
#endregion
///////////////////////////////////////////////////////////////////////
#region SQLiteIndex Helper Methods
/// <summary>
/// Converts a native pointer to a native sqlite3_index_info structure
/// into a new <see cref="SQLiteIndex" /> object instance.
/// </summary>
/// <param name="pIndex">
/// The native pointer to the native sqlite3_index_info structure to
................................................................................
SQLiteVirtualTableCursor cursor = CursorFromIntPtr(
pVtab, pCursor);
if (cursor != null)
{
if (Filter(cursor, idxNum,
SQLiteString.StringFromUtf8IntPtr(idxStr),
SQLiteValue.ArrayFromSizeAndIntPtr(argc,
argv)) == SQLiteErrorCode.Ok)
{
return SQLiteErrorCode.Ok;
}
}
}
catch (Exception e) /* NOTE: Must catch ALL. */
................................................................................
{
try
{
SQLiteVirtualTable table = TableFromIntPtr(pVtab);
if (table != null)
{
return Update(table,
SQLiteValue.ArrayFromSizeAndIntPtr(argc, argv),
ref rowId);
}
}
catch (Exception e) /* NOTE: Must catch ALL. */
{
SetTableError(pVtab, e.ToString());
}
|