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Overview
| Comment: | Fix obsolete comment. No changes to code. |
|---|---|
| Downloads: | Tarball | ZIP archive | SQL archive |
| Timelines: | family | ancestors | reuse-shm |
| Files: | files | file ages | folders |
| SHA3-256: |
0ff59edbbba6211c98f1025018c0f740 |
| User & Date: | drh 2019-11-27 12:03:24 |
Context
|
2019-11-27
| ||
| 12:03 | Fix obsolete comment. No changes to code. Leaf check-in: 0ff59edb user: drh tags: reuse-shm | |
|
2019-11-25
| ||
| 23:55 | Experimental file-controls for controlling the use of the -shm file. check-in: 12b8fa23 user: drh tags: reuse-shm | |
Changes
Changes to src/wal.c.
3408 3409 3410 3411 3412 3413 3414 3415 3416 3417 3418 3419 3420 3421 3422 3423 |
/* Write all frames into the log file exactly once */
for(p=pList; p; p=p->pDirty){
int nDbSize; /* 0 normally. Positive == commit flag */
/* Check if this page has already been written into the wal file by
** the current transaction. If so, overwrite the existing frame and
** set Wal.writeLock to WAL_WRITELOCK_RECKSUM - indicating that
** checksums must be recomputed when the transaction is committed. */
if( iFirst && (p->pDirty || isCommit==0) ){
u32 iWrite = 0;
VVA_ONLY(rc =) sqlite3WalFindFrame(pWal, p->pgno, &iWrite);
assert( rc==SQLITE_OK || iWrite==0 );
if( iWrite>=iFirst ){
i64 iOff = walFrameOffset(iWrite, szPage) + WAL_FRAME_HDRSIZE;
void *pData;
|
| > | > |
3408 3409 3410 3411 3412 3413 3414 3415 3416 3417 3418 3419 3420 3421 3422 3423 3424 3425 |
/* Write all frames into the log file exactly once */
for(p=pList; p; p=p->pDirty){
int nDbSize; /* 0 normally. Positive == commit flag */
/* Check if this page has already been written into the wal file by
** the current transaction. If so, overwrite the existing frame and
** make sure pWal->iReCksum is set to the frame being overwritten or
** or some earlier frame, so that we will know that checksums must
** be recomputed when the transaction commits, and where to start
** recomputing the checksums. */
if( iFirst && (p->pDirty || isCommit==0) ){
u32 iWrite = 0;
VVA_ONLY(rc =) sqlite3WalFindFrame(pWal, p->pgno, &iWrite);
assert( rc==SQLITE_OK || iWrite==0 );
if( iWrite>=iFirst ){
i64 iOff = walFrameOffset(iWrite, szPage) + WAL_FRAME_HDRSIZE;
void *pData;
|