static int dbAutoWork(lsm_db *pDb, int nUnit){ int rc = LSM_OK; /* Return code */ assert( pDb->pWorker==0 ); assert( pDb->bAutowork ); assert( nUnit>0 ); /* If one is required, run a checkpoint. */ rc = lsmCheckpointWrite(pDb); dbWorkerStart(pDb); rc = lsmSortedAutoWork(pDb, nUnit); dbWorkerDone(pDb); return rc; }
static int doWriteOp( lsm_db *pDb, int bDeleteRange, const void *pKey, int nKey, /* Key to write or delete */ const void *pVal, int nVal /* Value to write. Or nVal==-1 for a delete */ ){ int rc = LSM_OK; /* Return code */ int bCommit = 0; /* True to commit before returning */ if( pDb->nTransOpen==0 ){ bCommit = 1; rc = lsm_begin(pDb, 1); } if( rc==LSM_OK ){ if( bDeleteRange==0 ){ rc = lsmLogWrite(pDb, (void *)pKey, nKey, (void *)pVal, nVal); }else{ /* TODO */ } } lsmSortedSaveTreeCursors(pDb); if( rc==LSM_OK ){ int pgsz = lsmFsPageSize(pDb->pFS); int nQuant = LSM_AUTOWORK_QUANT * pgsz; int nBefore; int nAfter; int nDiff; if( nQuant>pDb->nTreeLimit ){ nQuant = pDb->nTreeLimit; } nBefore = lsmTreeSize(pDb); if( bDeleteRange ){ rc = lsmTreeDelete(pDb, (void *)pKey, nKey, (void *)pVal, nVal); }else{ rc = lsmTreeInsert(pDb, (void *)pKey, nKey, (void *)pVal, nVal); } nAfter = lsmTreeSize(pDb); nDiff = (nAfter/nQuant) - (nBefore/nQuant); if( rc==LSM_OK && pDb->bAutowork && nDiff!=0 ){ rc = lsmSortedAutoWork(pDb, nDiff * LSM_AUTOWORK_QUANT); } } /* If a transaction was opened at the start of this function, commit it. ** Or, if an error has occurred, roll it back. */ if( bCommit ){ if( rc==LSM_OK ){ rc = lsm_commit(pDb, 0); }else{ lsm_rollback(pDb, 0); } } return rc; }