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Overview
| Comment: | Prevent auto-work from recycling blocks before the connection doing the auto-work has finished using them. |
|---|---|
| Downloads: | Tarball | ZIP archive | SQL archive |
| Timelines: | family | ancestors | descendants | both | freelist-rework |
| Files: | files | file ages | folders |
| SHA1: |
7b5a26996fd2999c92ee76242a55b421 |
| User & Date: | dan 2012-10-31 09:25:34 |
Context
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2012-10-31
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| 11:15 | Improve the complex assert() used to check that database file blocks are not leaked or over-allocated. check-in: 1ac4435e5c user: dan tags: freelist-rework | |
| 09:25 | Prevent auto-work from recycling blocks before the connection doing the auto-work has finished using them. check-in: 7b5a26996f user: dan tags: freelist-rework | |
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2012-10-30
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| 18:46 | Another free-list related fix. check-in: a8acce6c87 user: dan tags: freelist-rework | |
Changes
Changes to src/lsm_shared.c.
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** * Currently in use by a database client, ** * May be used by a database client in the future, or ** * Is the most recently checkpointed snapshot (i.e. the one that will ** be used following recovery if a failure occurs at this point). */ rc = lsmCheckpointSynced(pDb, &iInUse, 0, 0); if( rc==LSM_OK && iInUse==0 ) iInUse = p->iId; if( rc==LSM_OK ) rc = firstSnapshotInUse(pDb, &iInUse); /* Query the free block list for a suitable block */ if( rc==LSM_OK ) rc = findFreeblock(pDb, iInUse, &iRet); /* If a block was found in the free block list, use it and remove it from ** the list. Otherwise, if no suitable block was found, allocate one from |
> > |
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** * Currently in use by a database client,
** * May be used by a database client in the future, or
** * Is the most recently checkpointed snapshot (i.e. the one that will
** be used following recovery if a failure occurs at this point).
*/
rc = lsmCheckpointSynced(pDb, &iInUse, 0, 0);
if( rc==LSM_OK && iInUse==0 ) iInUse = p->iId;
if( rc==LSM_OK && pDb->pClient ) iInUse = LSM_MIN(iInUse, pDb->pClient->iId);
if( rc==LSM_OK ) rc = firstSnapshotInUse(pDb, &iInUse);
/* Query the free block list for a suitable block */
if( rc==LSM_OK ) rc = findFreeblock(pDb, iInUse, &iRet);
/* If a block was found in the free block list, use it and remove it from
** the list. Otherwise, if no suitable block was found, allocate one from
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