X-Git-Url: https://git.ozlabs.org/?a=blobdiff_plain;f=ccan%2Ftdb2%2Ftdb1_tdb.c;h=a50303c33ce4e6333e823ceea2cceff6788e60f7;hb=b2555a868e3ee58d1b31f9558e3623d49ed2b2f1;hp=0a4f8b5503a7841fe0420e523a27a3d3ae42fd31;hpb=ceb2f3eacbad917ee990afbc3dd800bfb0607887;p=ccan diff --git a/ccan/tdb2/tdb1_tdb.c b/ccan/tdb2/tdb1_tdb.c index 0a4f8b55..a50303c3 100644 --- a/ccan/tdb2/tdb1_tdb.c +++ b/ccan/tdb2/tdb1_tdb.c @@ -209,32 +209,15 @@ enum TDB_ERROR tdb1_fetch(struct tdb_context *tdb, TDB_DATA key, TDB_DATA *data) return TDB_SUCCESS; } -/* - * Find an entry in the database and hand the record's data to a parsing - * function. The parsing function is executed under the chain read lock, so it - * should be fast and should not block on other syscalls. - * - * DON'T CALL OTHER TDB CALLS FROM THE PARSER, THIS MIGHT LEAD TO SEGFAULTS. - * - * For mmapped tdb's that do not have a transaction open it points the parsing - * function directly at the mmap area, it avoids the malloc/memcpy in this - * case. If a transaction is open or no mmap is available, it has to do - * malloc/read/parse/free. - * - * This is interesting for all readers of potentially large data structures in - * the tdb records, ldb indexes being one example. - * - * Return -1 if the record was not found. - */ - -int tdb1_parse_record(struct tdb_context *tdb, TDB_DATA key, - int (*parser)(TDB_DATA key, TDB_DATA data, - void *private_data), - void *private_data) +enum TDB_ERROR tdb1_parse_record(struct tdb_context *tdb, TDB_DATA key, + enum TDB_ERROR (*parser)(TDB_DATA key, + TDB_DATA data, + void *private_data), + void *private_data) { tdb1_off_t rec_ptr; struct tdb1_record rec; - int ret; + enum TDB_ERROR ret; uint32_t hash; /* find which hash bucket it is in */ @@ -242,8 +225,7 @@ int tdb1_parse_record(struct tdb_context *tdb, TDB_DATA key, if (!(rec_ptr = tdb1_find_lock_hash(tdb,key,hash,F_RDLCK,&rec))) { /* record not found */ - tdb->last_error = TDB_ERR_NOEXIST; - return -1; + return TDB_ERR_NOEXIST; } ret = tdb1_parse_data(tdb, key, rec_ptr + sizeof(rec) + rec.key_len,