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Overview
| Comment: | Fix minor issues with the sqlite3_value_dup() interface. |
|---|---|
| Downloads: | Tarball | ZIP archive | SQL archive |
| Timelines: | family | ancestors | descendants | both | value-dup |
| Files: | files | file ages | folders |
| SHA1: |
95edcf5010ecb8edd8eb74279c4766f9 |
| User & Date: | drh 2015-05-22 19:55:10 |
Context
|
2015-05-22
| ||
| 21:04 | Make sure sqlite3_value_dup() works correctly even for sqlite3_value objects that are marked SQLITE_STATIC. Closed-Leaf check-in: f332ffc3 user: drh tags: value-dup | |
| 19:55 | Fix minor issues with the sqlite3_value_dup() interface. check-in: 95edcf50 user: drh tags: value-dup | |
| 18:40 | Update with fixes and enhancements from trunk. check-in: 9605d008 user: drh tags: value-dup | |
Changes
Changes to src/vdbeapi.c.
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memset(pNew, 0, sizeof(*pNew));
memcpy(pNew, pOrig, MEMCELLSIZE);
pNew->flags &= ~MEM_Dyn;
pNew->db = 0;
if( pNew->flags&(MEM_Str|MEM_Blob) ){
if( 0==(pOrig->flags&MEM_Static) ){
pNew->flags |= MEM_Ephem;
sqlite3VdbeMemMakeWriteable(pNew);
}
}
return pNew;
}
/* Destroy an sqlite3_value object previously obtained from
** sqlite3_value_dup().
|
| > > > |
222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 |
memset(pNew, 0, sizeof(*pNew));
memcpy(pNew, pOrig, MEMCELLSIZE);
pNew->flags &= ~MEM_Dyn;
pNew->db = 0;
if( pNew->flags&(MEM_Str|MEM_Blob) ){
if( 0==(pOrig->flags&MEM_Static) ){
pNew->flags |= MEM_Ephem;
if( sqlite3VdbeMemMakeWriteable(pNew)!=SQLITE_OK ){
sqlite3ValueFree(pNew);
pNew = 0;
}
}
}
return pNew;
}
/* Destroy an sqlite3_value object previously obtained from
** sqlite3_value_dup().
|
Changes to src/vdbemem.c.
792 793 794 795 796 797 798 799 800 801 802 803 804 805 806 |
/*
** Make a full copy of pFrom into pTo. Prior contents of pTo are
** freed before the copy is made.
*/
int sqlite3VdbeMemCopy(Mem *pTo, const Mem *pFrom){
int rc = SQLITE_OK;
assert( pTo->db==pFrom->db );
assert( (pFrom->flags & MEM_RowSet)==0 );
if( VdbeMemDynamic(pTo) ) vdbeMemClearExternAndSetNull(pTo);
memcpy(pTo, pFrom, MEMCELLSIZE);
pTo->flags &= ~MEM_Dyn;
if( pTo->flags&(MEM_Str|MEM_Blob) ){
if( 0==(pFrom->flags&MEM_Static) ){
pTo->flags |= MEM_Ephem;
|
> > > | |
792 793 794 795 796 797 798 799 800 801 802 803 804 805 806 807 808 809 |
/*
** Make a full copy of pFrom into pTo. Prior contents of pTo are
** freed before the copy is made.
*/
int sqlite3VdbeMemCopy(Mem *pTo, const Mem *pFrom){
int rc = SQLITE_OK;
/* The pFrom==0 case in the following assert() is when an sqlite3_value
** from sqlite3_value_dup() is used as the argument
** to sqlite3_result_value(). */
assert( pTo->db==pFrom->db || pFrom->db==0 );
assert( (pFrom->flags & MEM_RowSet)==0 );
if( VdbeMemDynamic(pTo) ) vdbeMemClearExternAndSetNull(pTo);
memcpy(pTo, pFrom, MEMCELLSIZE);
pTo->flags &= ~MEM_Dyn;
if( pTo->flags&(MEM_Str|MEM_Blob) ){
if( 0==(pFrom->flags&MEM_Static) ){
pTo->flags |= MEM_Ephem;
|