memcached_behavior() causes commands to be buffered until they are flushed to

[awesomized/libmemcached] / lib / memcached_delete.c

diff --git a/lib/memcached_delete.c b/lib/memcached_delete.c
index d24c0f82a0b7d16ffff58e922a09a05f97817010..a7298141ab5f907df46b22711f2a228ccbf5a347 100644 (file)
--- a/lib/memcached_delete.c
+++ b/lib/memcached_delete.c
@@ -1,19 +1,32 @@
-#include <memcached.h>
+#include "common.h"
 
 memcached_return memcached_delete(memcached_st *ptr, char *key, size_t key_length,
                                   time_t expiration)
 {
+  return memcached_delete_by_key(ptr, key, key_length,
+                                 key, key_length, expiration);
+}
+
+memcached_return memcached_delete_by_key(memcached_st *ptr, 
+                                         char *master_key, size_t master_key_length,
+                                         char *key, size_t key_length,
+                                         time_t expiration)
+{
+  char to_write;
   size_t send_length;
   memcached_return rc;
   char buffer[MEMCACHED_DEFAULT_COMMAND_SIZE];
   unsigned int server_key;
 
-  rc= memcached_connect(ptr);
+  LIBMEMCACHED_MEMCACHED_DELETE_START();
 
-  if (rc != MEMCACHED_SUCCESS)
-    return rc;
+  if (key_length == 0)
+    return MEMCACHED_NO_KEY_PROVIDED;
 
-  server_key= memcached_generate_hash(key, key_length) % ptr->number_of_hosts;
+  if (ptr->hosts == NULL || ptr->number_of_hosts == 0)
+    return MEMCACHED_NO_SERVERS;
+
+  server_key= memcached_generate_hash(ptr, master_key, master_key_length);
 
   if (expiration)
     send_length= snprintf(buffer, MEMCACHED_DEFAULT_COMMAND_SIZE, 
@@ -23,8 +36,84 @@ memcached_return memcached_delete(memcached_st *ptr, char *key, size_t key_lengt
     send_length= snprintf(buffer, MEMCACHED_DEFAULT_COMMAND_SIZE, 
                           "delete %.*s\r\n", (int)key_length, key);
 
-  if ((write(ptr->hosts[server_key].fd, buffer, send_length) == -1))
-    return MEMCACHED_WRITE_FAILURE;
+  if (send_length >= MEMCACHED_DEFAULT_COMMAND_SIZE)
+  {
+    rc= MEMCACHED_WRITE_FAILURE;
+    goto error;
+  }
+
+  to_write= (ptr->flags & MEM_BUFFER_REQUESTS) ? 0 : 1;
+
+  rc= memcached_do(ptr, server_key, buffer, send_length, to_write);
+  if (rc != MEMCACHED_SUCCESS)
+    goto error;
+
+  if ((ptr->flags & MEM_BUFFER_REQUESTS))
+  {
+    rc= MEMCACHED_BUFFERED;
+  }
+  else
+  {
+    rc= memcached_response(ptr, buffer, MEMCACHED_DEFAULT_COMMAND_SIZE, NULL, server_key);
+    if (rc == MEMCACHED_DELETED)
+      rc= MEMCACHED_SUCCESS;
+  }
+
+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);
+  }
 
-  return memcached_response(ptr, buffer, MEMCACHED_DEFAULT_COMMAND_SIZE, server_key);
+  return MEMCACHED_BUFFERED;
 }