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Overview
| Comment: | Minor optimization to GetBytes() to avoid calling sqlite3_column_blob() on null destination buffers. Fix for [8c1650482e]. |
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| Downloads: | Tarball | ZIP archive | SQL archive |
| Timelines: | family | ancestors | descendants | both | trunk |
| Files: | files | file ages | folders |
| SHA1: |
a97d149d1e56f612d5327c4adcc5db8d |
| User & Date: | shaneh 2011-05-24 01:39:23 |
References
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2013-01-01
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| 19:32 | • Closed ticket [8c1650482e]: SQLite3.GetBytes optimization plus 3 other changes artifact: 8bbf52212d user: mistachkin | |
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2011-05-24
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| 01:40 | • Fixed ticket [8c1650482e]. artifact: beca12706f user: shane | |
Context
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2011-06-02
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| 15:17 | Update to SQlite 3.7.6.3 [ed1da510a2]. check-in: 9067143122 user: shaneh tags: trunk | |
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2011-05-24
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| 01:39 | Minor optimization to GetBytes() to avoid calling sqlite3_column_blob() on null destination buffers. Fix for [8c1650482e]. check-in: a97d149d1e user: shaneh tags: trunk | |
| 01:20 | Update various assembly information settings. check-in: 606af726e9 user: shaneh tags: trunk | |
Changes
Changes to System.Data.SQLite/SQLite3.cs.
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internal override long GetBytes(SQLiteStatement stmt, int index, int nDataOffset, byte[] bDest, int nStart, int nLength)
{
IntPtr ptr;
int nlen;
int nCopied = nLength;
nlen = UnsafeNativeMethods.sqlite3_column_bytes(stmt._sqlite_stmt, index);
ptr = UnsafeNativeMethods.sqlite3_column_blob(stmt._sqlite_stmt, index);
if (bDest == null) return nlen;
if (nCopied + nStart > bDest.Length) nCopied = bDest.Length - nStart;
if (nCopied + nDataOffset > nlen) nCopied = nlen - nDataOffset;
if (nCopied > 0)
Marshal.Copy((IntPtr)(ptr.ToInt64() + nDataOffset), bDest, nStart, nCopied);
else nCopied = 0;
return nCopied;
}
internal override long GetChars(SQLiteStatement stmt, int index, int nDataOffset, char[] bDest, int nStart, int nLength)
{
int nlen;
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| < > > > > > | > |
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internal override long GetBytes(SQLiteStatement stmt, int index, int nDataOffset, byte[] bDest, int nStart, int nLength)
{
IntPtr ptr;
int nlen;
int nCopied = nLength;
nlen = UnsafeNativeMethods.sqlite3_column_bytes(stmt._sqlite_stmt, index);
// If no destination buffer, return the size needed.
if (bDest == null) return nlen;
if (nCopied + nStart > bDest.Length) nCopied = bDest.Length - nStart;
if (nCopied + nDataOffset > nlen) nCopied = nlen - nDataOffset;
if (nCopied > 0)
{
ptr = UnsafeNativeMethods.sqlite3_column_blob(stmt._sqlite_stmt, index);
Marshal.Copy((IntPtr)(ptr.ToInt64() + nDataOffset), bDest, nStart, nCopied);
}
else
{
nCopied = 0;
}
return nCopied;
}
internal override long GetChars(SQLiteStatement stmt, int index, int nDataOffset, char[] bDest, int nStart, int nLength)
{
int nlen;
|