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Diffstat (limited to 'src/dbpage.c')
-rw-r--r--src/dbpage.c19
1 files changed, 10 insertions, 9 deletions
diff --git a/src/dbpage.c b/src/dbpage.c
index 9378dd4fc..17e5f44f5 100644
--- a/src/dbpage.c
+++ b/src/dbpage.c
@@ -246,7 +246,7 @@ static int dbpageFilter(
pCsr->iDb = 0;
}
pBt = db->aDb[pCsr->iDb].pBt;
- if( pBt==0 ) return SQLITE_OK;
+ if( NEVER(pBt==0) ) return SQLITE_OK;
pCsr->pPager = sqlite3BtreePager(pBt);
pCsr->szPage = sqlite3BtreeGetPageSize(pBt);
pCsr->mxPgno = sqlite3BtreeLastPage(pBt);
@@ -337,18 +337,20 @@ static int dbpageUpdate(
goto update_fail;
}
pgno = sqlite3_value_int(argv[0]);
- if( (Pgno)sqlite3_value_int(argv[1])!=pgno ){
+ if( sqlite3_value_type(argv[0])==SQLITE_NULL
+ || (Pgno)sqlite3_value_int(argv[1])!=pgno
+ ){
zErr = "cannot insert";
goto update_fail;
}
zSchema = (const char*)sqlite3_value_text(argv[4]);
- iDb = zSchema ? sqlite3FindDbName(pTab->db, zSchema) : -1;
- if( iDb<0 ){
+ iDb = ALWAYS(zSchema) ? sqlite3FindDbName(pTab->db, zSchema) : -1;
+ if( NEVER(iDb<0) ){
zErr = "no such schema";
goto update_fail;
}
pBt = pTab->db->aDb[iDb].pBt;
- if( pgno<1 || pBt==0 || pgno>sqlite3BtreeLastPage(pBt) ){
+ if( NEVER(pgno<1) || NEVER(pBt==0) || NEVER(pgno>sqlite3BtreeLastPage(pBt)) ){
zErr = "bad page number";
goto update_fail;
}
@@ -387,12 +389,11 @@ static int dbpageBegin(sqlite3_vtab *pVtab){
DbpageTable *pTab = (DbpageTable *)pVtab;
sqlite3 *db = pTab->db;
int i;
- int rc = SQLITE_OK;
- for(i=0; rc==SQLITE_OK && i<db->nDb; i++){
+ for(i=0; i<db->nDb; i++){
Btree *pBt = db->aDb[i].pBt;
- if( pBt ) rc = sqlite3BtreeBeginTrans(pBt, 1, 0);
+ if( pBt ) (void)sqlite3BtreeBeginTrans(pBt, 1, 0);
}
- return rc;
+ return SQLITE_OK;
}