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authorVolker Lendecke <vl@samba.org>2010-11-27 15:48:21 +0100
committerVolker Lendecke <vlendec@samba.org>2010-11-28 14:19:19 +0100
commit1a91fe90b6a1f50c641ce4d778f49ce4c121b9dd (patch)
tree1430a3f718efb401180afbdfff55f0d23ac9912b /source3/lib
parent62afdb9cc056da4ba7a873e6bce00b4f2c32f4a4 (diff)
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s3: Add gencache_iterate_blobs
Diffstat (limited to 'source3/lib')
-rw-r--r--source3/lib/gencache.c144
1 files changed, 87 insertions, 57 deletions
diff --git a/source3/lib/gencache.c b/source3/lib/gencache.c
index 89df3f9e80..db0b179e65 100644
--- a/source3/lib/gencache.c
+++ b/source3/lib/gencache.c
@@ -274,6 +274,10 @@ static bool gencache_pull_timeout(char *val, time_t *pres, char **pendptr)
time_t res;
char *endptr;
+ if (val == NULL) {
+ return false;
+ }
+
res = strtol(val, &endptr, 10);
if ((endptr == NULL) || (*endptr != '/')) {
@@ -631,42 +635,27 @@ bool gencache_set(const char *keystr, const char *value, time_t timeout)
return gencache_set_data_blob(keystr, &blob, timeout);
}
-/**
- * Iterate through all entries which key matches to specified pattern
- *
- * @param fn pointer to the function that will be supplied with each single
- * matching cache entry (key, value and timeout) as an arguments
- * @param data void pointer to an arbitrary data that is passed directly to the fn
- * function on each call
- * @param keystr_pattern pattern the existing entries' keys are matched to
- *
- **/
-
-struct gencache_iterate_state {
- void (*fn)(const char *key, const char *value, time_t timeout,
- void *priv);
+struct gencache_iterate_blobs_state {
+ void (*fn)(const char *key, DATA_BLOB value,
+ time_t timeout, void *private_data);
const char *pattern;
- void *priv;
+ void *private_data;
bool in_persistent;
};
-static int gencache_iterate_fn(struct tdb_context *tdb, TDB_DATA key,
- TDB_DATA value, void *priv)
+static int gencache_iterate_blobs_fn(struct tdb_context *tdb, TDB_DATA key,
+ TDB_DATA data, void *priv)
{
- struct gencache_iterate_state *state =
- (struct gencache_iterate_state *)priv;
+ struct gencache_iterate_blobs_state *state =
+ (struct gencache_iterate_blobs_state *)priv;
char *keystr;
char *free_key = NULL;
- char *valstr;
- char *free_val = NULL;
- unsigned long u;
time_t timeout;
- char *timeout_endp;
+ char *endptr;
if (tdb_data_cmp(key, last_stabilize_key()) == 0) {
return 0;
}
-
if (state->in_persistent && tdb_exists(cache_notrans, key)) {
return 0;
}
@@ -679,62 +668,103 @@ static int gencache_iterate_fn(struct tdb_context *tdb, TDB_DATA key,
free_key = keystr;
}
- if ((value.dptr == NULL) || (value.dsize <= TIMEOUT_LEN)) {
+ if (!gencache_pull_timeout((char *)data.dptr, &timeout, &endptr)) {
goto done;
}
+ endptr += 1;
if (fnmatch(state->pattern, keystr, 0) != 0) {
goto done;
}
- if (value.dptr[value.dsize-1] == '\0') {
- valstr = (char *)value.dptr;
- } else {
- /* ensure 0-termination */
- valstr = SMB_STRNDUP((char *)value.dptr, value.dsize);
- free_val = valstr;
- }
-
- u = strtoul(valstr, &timeout_endp, 10);
-
- if ((*timeout_endp != '/') || ((timeout_endp-valstr) != TIMEOUT_LEN)) {
- goto done;
- }
-
- timeout = u;
- timeout_endp += 1;
+ DEBUG(10, ("Calling function with arguments (key=%s, timeout=%s)\n",
+ keystr, ctime(&timeout)));
- DEBUG(10, ("Calling function with arguments "
- "(key = %s, value = %s, timeout = %s)\n",
- keystr, timeout_endp, ctime(&timeout)));
- state->fn(keystr, timeout_endp, timeout, state->priv);
+ state->fn(keystr,
+ data_blob_const(endptr,
+ data.dsize - PTR_DIFF(endptr, data.dptr)),
+ timeout, state->private_data);
done:
SAFE_FREE(free_key);
- SAFE_FREE(free_val);
return 0;
}
-void gencache_iterate(void (*fn)(const char* key, const char *value, time_t timeout, void* dptr),
- void* data, const char* keystr_pattern)
+void gencache_iterate_blobs(void (*fn)(const char *key, DATA_BLOB value,
+ time_t timeout, void *private_data),
+ void *private_data, const char *pattern)
{
- struct gencache_iterate_state state;
+ struct gencache_iterate_blobs_state state;
- if ((fn == NULL) || (keystr_pattern == NULL)) {
+ if ((fn == NULL) || (pattern == NULL) || !gencache_init()) {
return;
}
- if (!gencache_init()) return;
-
- DEBUG(5, ("Searching cache keys with pattern %s\n", keystr_pattern));
+ DEBUG(5, ("Searching cache keys with pattern %s\n", pattern));
state.fn = fn;
- state.pattern = keystr_pattern;
- state.priv = data;
+ state.pattern = pattern;
+ state.private_data = private_data;
state.in_persistent = false;
- tdb_traverse(cache_notrans, gencache_iterate_fn, &state);
+ tdb_traverse(cache_notrans, gencache_iterate_blobs_fn, &state);
state.in_persistent = true;
- tdb_traverse(cache, gencache_iterate_fn, &state);
+ tdb_traverse(cache, gencache_iterate_blobs_fn, &state);
+}
+
+/**
+ * Iterate through all entries which key matches to specified pattern
+ *
+ * @param fn pointer to the function that will be supplied with each single
+ * matching cache entry (key, value and timeout) as an arguments
+ * @param data void pointer to an arbitrary data that is passed directly to the fn
+ * function on each call
+ * @param keystr_pattern pattern the existing entries' keys are matched to
+ *
+ **/
+
+struct gencache_iterate_state {
+ void (*fn)(const char *key, const char *value, time_t timeout,
+ void *priv);
+ void *private_data;
+};
+
+static void gencache_iterate_fn(const char *key, DATA_BLOB value,
+ time_t timeout, void *private_data)
+{
+ struct gencache_iterate_state *state =
+ (struct gencache_iterate_state *)private_data;
+ char *valstr;
+ char *free_val = NULL;
+
+ if (value.data[value.length-1] == '\0') {
+ valstr = (char *)value.data;
+ } else {
+ /* ensure 0-termination */
+ valstr = SMB_STRNDUP((char *)value.data, value.length);
+ free_val = valstr;
+ }
+
+ DEBUG(10, ("Calling function with arguments "
+ "(key = %s, value = %s, timeout = %s)\n",
+ key, valstr, ctime(&timeout)));
+
+ state->fn(key, valstr, timeout, state->private_data);
+
+ SAFE_FREE(free_val);
+}
+
+void gencache_iterate(void (*fn)(const char *key, const char *value,
+ time_t timeout, void *dptr),
+ void *private_data, const char *pattern)
+{
+ struct gencache_iterate_state state;
+
+ if (fn == NULL) {
+ return;
+ }
+ state.fn = fn;
+ state.private_data = private_data;
+ gencache_iterate_blobs(gencache_iterate_fn, &state, pattern);
}