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When saving the state of an RBU update in the incremental-checkpoint phase,

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sync the database file. Otherwise, if a power failure occurs and the RBU
update resumed following system recovery, the database may become corrupt.

FossilOrigin-Name: edee6a80e1cc7e6a2b8c3c7f76dd794fc8ab9a72
This commit is contained in:
dan
2017-03-02 14:51:47 +00:00
parent 76adb23980
commit cb1b0a693a
6 changed files with 139 additions and 18 deletions
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12
ext/rbu/sqlite3rbu.c
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@ -3718,6 +3718,12 @@ int sqlite3rbu_close(sqlite3rbu *p, char **pzErrmsg){
p->rc = sqlite3_exec(p->dbMain, "COMMIT", 0, 0, &p->zErrmsg);
}
/* Sync the db file if currently doing an incremental checkpoint */
if( p->rc==SQLITE_OK && p->eStage==RBU_STAGE_CKPT ){
sqlite3_file *pDb = p->pTargetFd->pReal;
p->rc = pDb->pMethods->xSync(pDb, SQLITE_SYNC_NORMAL);
}
rbuSaveState(p, p->eStage);
if( p->rc==SQLITE_OK && p->eStage==RBU_STAGE_OAL ){
@ -3842,6 +3848,12 @@ int sqlite3rbu_savestate(sqlite3rbu *p){
if( rc==SQLITE_OK ) rc = sqlite3_exec(p->dbMain, "COMMIT", 0, 0, 0);
}
/* Sync the db file */
if( rc==SQLITE_OK && p->eStage==RBU_STAGE_CKPT ){
sqlite3_file *pDb = p->pTargetFd->pReal;
rc = pDb->pMethods->xSync(pDb, SQLITE_SYNC_NORMAL);
}
p->rc = rc;
rbuSaveState(p, p->eStage);
rc = p->rc;