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Diffstat (limited to 'lib/tdb/common/traverse.c')
-rw-r--r--lib/tdb/common/traverse.c23
1 files changed, 19 insertions, 4 deletions
diff --git a/lib/tdb/common/traverse.c b/lib/tdb/common/traverse.c
index 8e5a63a5ec..3c88c87143 100644
--- a/lib/tdb/common/traverse.c
+++ b/lib/tdb/common/traverse.c
@@ -178,6 +178,8 @@ static int tdb_traverse_internal(struct tdb_context *tdb,
dbuf.dptr = key.dptr + rec.key_len;
dbuf.dsize = rec.data_len;
+ tdb_trace_1rec_retrec(tdb, "traverse", key, dbuf);
+
/* Drop chain lock, call out */
if (tdb_unlock(tdb, tl->hash, tl->lock_rw) != 0) {
ret = -1;
@@ -186,6 +188,7 @@ static int tdb_traverse_internal(struct tdb_context *tdb,
}
if (fn && fn(tdb, key, dbuf, private_data)) {
/* They want us to terminate traversal */
+ tdb_trace_ret(tdb, "tdb_traverse_end", count);
if (tdb_unlock_record(tdb, tl->off) != 0) {
TDB_LOG((tdb, TDB_DEBUG_FATAL, "tdb_traverse: unlock_record failed!\n"));;
ret = -1;
@@ -195,6 +198,7 @@ static int tdb_traverse_internal(struct tdb_context *tdb,
}
SAFE_FREE(key.dptr);
}
+ tdb_trace(tdb, "tdb_traverse_end");
out:
tdb->travlocks.next = tl->next;
if (ret < 0)
@@ -220,6 +224,7 @@ int tdb_traverse_read(struct tdb_context *tdb,
}
tdb->traverse_read++;
+ tdb_trace(tdb, "tdb_traverse_read_start");
ret = tdb_traverse_internal(tdb, fn, private_data, &tl);
tdb->traverse_read--;
@@ -244,12 +249,13 @@ int tdb_traverse(struct tdb_context *tdb,
if (tdb->read_only || tdb->traverse_read) {
return tdb_traverse_read(tdb, fn, private_data);
}
-
+
if (tdb_transaction_lock(tdb, F_WRLCK)) {
return -1;
}
tdb->traverse_write++;
+ tdb_trace(tdb, "tdb_traverse_start");
ret = tdb_traverse_internal(tdb, fn, private_data, &tl);
tdb->traverse_write--;
@@ -273,13 +279,17 @@ TDB_DATA tdb_firstkey(struct tdb_context *tdb)
tdb->travlocks.lock_rw = F_RDLCK;
/* Grab first record: locks chain and returned record. */
- off = tdb_next_lock(tdb, &tdb->travlocks, &rec);
- if (off == 0 || off == TDB_NEXT_LOCK_ERR)
+ off = tdb_next_lock(tdb, &tdb->travlocks, &rec);
+ if (off == 0 || off == TDB_NEXT_LOCK_ERR) {
+ tdb_trace_retrec(tdb, "tdb_firstkey", tdb_null);
return tdb_null;
+ }
/* now read the key */
key.dsize = rec.key_len;
key.dptr =tdb_alloc_read(tdb,tdb->travlocks.off+sizeof(rec),key.dsize);
+ tdb_trace_retrec(tdb, "tdb_firstkey", key);
+
/* Unlock the hash chain of the record we just read. */
if (tdb_unlock(tdb, tdb->travlocks.hash, tdb->travlocks.lock_rw) != 0)
TDB_LOG((tdb, TDB_DEBUG_FATAL, "tdb_firstkey: error occurred while tdb_unlocking!\n"));
@@ -305,6 +315,8 @@ TDB_DATA tdb_nextkey(struct tdb_context *tdb, TDB_DATA oldkey)
|| memcmp(k, oldkey.dptr, oldkey.dsize) != 0) {
/* No, it wasn't: unlock it and start from scratch */
if (tdb_unlock_record(tdb, tdb->travlocks.off) != 0) {
+ tdb_trace_1rec_retrec(tdb, "tdb_nextkey",
+ oldkey, tdb_null);
SAFE_FREE(k);
return tdb_null;
}
@@ -321,8 +333,10 @@ TDB_DATA tdb_nextkey(struct tdb_context *tdb, TDB_DATA oldkey)
if (!tdb->travlocks.off) {
/* No previous element: do normal find, and lock record */
tdb->travlocks.off = tdb_find_lock_hash(tdb, oldkey, tdb->hash_fn(&oldkey), tdb->travlocks.lock_rw, &rec);
- if (!tdb->travlocks.off)
+ if (!tdb->travlocks.off) {
+ tdb_trace_1rec_retrec(tdb, "tdb_nextkey", oldkey, tdb_null);
return tdb_null;
+ }
tdb->travlocks.hash = BUCKET(rec.full_hash);
if (tdb_lock_record(tdb, tdb->travlocks.off) != 0) {
TDB_LOG((tdb, TDB_DEBUG_FATAL, "tdb_nextkey: lock_record failed (%s)!\n", strerror(errno)));
@@ -345,6 +359,7 @@ TDB_DATA tdb_nextkey(struct tdb_context *tdb, TDB_DATA oldkey)
/* Unlock the chain of old record */
if (tdb_unlock(tdb, BUCKET(oldhash), tdb->travlocks.lock_rw) != 0)
TDB_LOG((tdb, TDB_DEBUG_FATAL, "tdb_nextkey: WARNING tdb_unlock failed!\n"));
+ tdb_trace_1rec_retrec(tdb, "tdb_nextkey", oldkey, key);
return key;
}