Code for multi delete functions.

[m6w6/libmemcached] / lib / memcached_delete.c

diff --git a/lib/memcached_delete.c b/lib/memcached_delete.c
index 519e52bec6fea58f6d304bf187d289f61559acec..4fe29421eb443f38318246a70a39091826a6ba07 100644 (file)
--- a/lib/memcached_delete.c
+++ b/lib/memcached_delete.c
@@ -66,3 +66,70 @@ error:
   LIBMEMCACHED_MEMCACHED_DELETE_END();
   return rc;
 }
+
+memcached_return memcached_mdelete(memcached_st *ptr, 
+                                   char **key, size_t *key_length,
+                                   unsigned int number_of_keys,
+                                   time_t expiration)
+{
+  return memcached_mdelete_by_key(ptr, NULL, 0,
+                                   key, key_length,
+                                   number_of_keys, expiration);
+
+}
+
+memcached_return memcached_mdelete_by_key(memcached_st *ptr, 
+                                          char *master_key, size_t master_key_length,
+                                          char **key, size_t *key_length,
+                                          unsigned int number_of_keys,
+                                          time_t expiration)
+{
+  size_t send_length;
+  memcached_return rc= MEMCACHED_SUCCESS;
+  char buffer[MEMCACHED_DEFAULT_COMMAND_SIZE];
+  unsigned int master_server_key= 0;
+  unsigned int x;
+
+  LIBMEMCACHED_MEMCACHED_DELETE_START();
+
+  if (ptr->hosts == NULL || ptr->number_of_hosts == 0)
+    return MEMCACHED_NO_SERVERS;
+
+  if (master_key && master_key_length)
+    master_server_key= memcached_generate_hash(ptr, master_key, master_key_length);
+
+  for (x= 0; x < number_of_keys; x++)
+  {
+    unsigned int server_key;
+
+    if (master_key && master_key_length)
+      server_key= master_server_key;
+    else
+      server_key= memcached_generate_hash(ptr, key[x], key_length[x]);
+
+    if (expiration)
+      send_length= snprintf(buffer, MEMCACHED_DEFAULT_COMMAND_SIZE, 
+                            "delete %.*s %llu\r\n", (int)(key_length[x]), key[x], 
+                            (unsigned long long)expiration);
+    else
+      send_length= snprintf(buffer, MEMCACHED_DEFAULT_COMMAND_SIZE, 
+                            "delete %.*s\r\n", (int)(key_length[x]), key[x]);
+
+    (void)memcached_do(ptr, server_key, buffer, send_length, 0);
+  }
+
+  for (x= 0; x < ptr->number_of_hosts; x++)
+  {
+    if (memcached_server_response_count(ptr, x))
+    {
+      /* We need to do something about non-connnected hosts in the future */
+      if ((memcached_io_write(ptr, x, NULL, 0, 1)) == -1)
+      {
+        rc= MEMCACHED_SOME_ERRORS;
+      }
+    }
+  }
+
+  LIBMEMCACHED_MEMCACHED_DELETE_END();
+  return rc;
+}