+
+static inline memcached_return binary_delete(memcached_st *ptr,
+ unsigned int server_key,
+ const char *key,
+ size_t key_length,
+ uint8_t flush)
+{
+ protocol_binary_request_delete request= {.bytes= {0}};
+
+ request.message.header.request.magic= PROTOCOL_BINARY_REQ;
+ if (ptr->flags & MEM_NOREPLY)
+ request.message.header.request.opcode= PROTOCOL_BINARY_CMD_DELETEQ;
+ else
+ request.message.header.request.opcode= PROTOCOL_BINARY_CMD_DELETE;
+ request.message.header.request.keylen= htons((uint16_t)key_length);
+ request.message.header.request.datatype= PROTOCOL_BINARY_RAW_BYTES;
+ request.message.header.request.bodylen= htonl((uint32_t) key_length);
+
+ if (ptr->flags & MEM_USE_UDP && !flush)
+ {
+ size_t cmd_size= sizeof(request.bytes) + key_length;
+ if (cmd_size > MAX_UDP_DATAGRAM_LENGTH - UDP_DATAGRAM_HEADER_LENGTH)
+ return MEMCACHED_WRITE_FAILURE;
+ if (cmd_size + ptr->hosts[server_key].write_buffer_offset > MAX_UDP_DATAGRAM_LENGTH)
+ memcached_io_write(&ptr->hosts[server_key], NULL, 0, 1);
+ }
+
+ memcached_return rc= MEMCACHED_SUCCESS;
+
+ if ((memcached_do(&ptr->hosts[server_key], request.bytes,
+ sizeof(request.bytes), 0) != MEMCACHED_SUCCESS) ||
+ (memcached_io_write(&ptr->hosts[server_key], key,
+ key_length, (char) flush) == -1))
+ {
+ memcached_io_reset(&ptr->hosts[server_key]);
+ rc= MEMCACHED_WRITE_FAILURE;
+ }
+
+ unlikely (ptr->number_of_replicas > 0)
+ {
+ request.message.header.request.opcode= PROTOCOL_BINARY_CMD_DELETEQ;
+
+ for (uint32_t x= 0; x < ptr->number_of_replicas; ++x)
+ {
+ ++server_key;
+ if (server_key == ptr->number_of_hosts)
+ server_key= 0;
+
+ memcached_server_st* server= &ptr->hosts[server_key];
+ if ((memcached_do(server, (const char*)request.bytes,
+ sizeof(request.bytes), 0) != MEMCACHED_SUCCESS) ||
+ (memcached_io_write(server, key, key_length, (char) flush) == -1))
+ memcached_io_reset(server);
+ else
+ memcached_server_response_decrement(server);
+ }
+ }
+
+ return rc;
+}