-#include "common.h"
-#include "memcached/protocol_binary.h"
+/* vim:expandtab:shiftwidth=2:tabstop=2:smarttab:
+ *
+ * Libmemcached library
+ *
+ * Copyright (C) 2011 Data Differential, http://datadifferential.com/
+ * Copyright (C) 2006-2009 Brian Aker All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following disclaimer
+ * in the documentation and/or other materials provided with the
+ * distribution.
+ *
+ * * The names of its contributors may not be used to endorse or
+ * promote products derived from this software without specific prior
+ * written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+
+#include <libmemcached/common.h>
+#include <libmemcached/memcached/protocol_binary.h>
memcached_return_t memcached_delete(memcached_st *ptr, const char *key, size_t key_length,
time_t expiration)
}
static inline memcached_return_t binary_delete(memcached_st *ptr,
- unsigned int server_key,
+ uint32_t server_key,
const char *key,
size_t key_length,
- uint8_t flush);
+ bool flush);
memcached_return_t memcached_delete_by_key(memcached_st *ptr,
const char *master_key, size_t master_key_length,
const char *key, size_t key_length,
time_t expiration)
{
- uint8_t to_write;
- size_t send_length;
- memcached_return_t rc;
+ bool to_write;
char buffer[MEMCACHED_DEFAULT_COMMAND_SIZE];
- unsigned int server_key;
+ uint32_t server_key;
+ memcached_server_write_instance_st instance;
LIBMEMCACHED_MEMCACHED_DELETE_START();
+ memcached_return_t rc;
+ if ((rc= initialize_query(ptr)) != MEMCACHED_SUCCESS)
+ {
+ return rc;
+ }
+
rc= memcached_validate_key_length(key_length,
ptr->flags.binary_protocol);
unlikely (rc != MEMCACHED_SUCCESS)
return rc;
- unlikely (ptr->hosts == NULL || memcached_server_count(ptr) == 0)
+ unlikely (memcached_server_count(ptr) == 0)
return MEMCACHED_NO_SERVERS;
- server_key= memcached_generate_hash(ptr, master_key, master_key_length);
- to_write= (uint8_t)((ptr->flags.buffer_requests) ? 0 : 1);
+ server_key= memcached_generate_hash_with_redistribution(ptr, master_key, master_key_length);
+ instance= memcached_server_instance_fetch(ptr, server_key);
+
+ to_write= (ptr->flags.buffer_requests) ? false : true;
+
bool no_reply= (ptr->flags.no_reply);
if (ptr->flags.binary_protocol)
{
- likely (!expiration)
+ likely (! expiration)
+ {
rc= binary_delete(ptr, server_key, key, key_length, to_write);
+ }
else
+ {
rc= MEMCACHED_INVALID_ARGUMENTS;
+ }
}
else
{
+ int send_length;
+
unlikely (expiration)
{
- if ((ptr->hosts[server_key].major_version == 1 &&
- ptr->hosts[server_key].minor_version > 2) ||
- ptr->hosts[server_key].major_version > 1)
+ if ((instance->major_version == 1 &&
+ instance->minor_version > 2) ||
+ instance->major_version > 1)
{
rc= MEMCACHED_INVALID_ARGUMENTS;
goto error;
{
/* ensure that we are connected, otherwise we might bump the
* command counter before connection */
- if ((rc= memcached_connect(&ptr->hosts[server_key])) != MEMCACHED_SUCCESS)
+ if ((rc= memcached_connect(instance)) != MEMCACHED_SUCCESS)
{
WATCHPOINT_ERROR(rc);
return rc;
}
- if (ptr->hosts[server_key].minor_version == 0)
+ if (instance->minor_version == 0)
{
- if (no_reply || !to_write)
+ if (no_reply || ! to_write)
{
/* We might get out of sync with the server if we
* send this command to a server newer than 1.2.x..
* disable no_reply and buffered mode.
*/
- to_write= 1;
+ to_write= true;
if (no_reply)
- memcached_server_response_increment(&ptr->hosts[server_key]);
+ memcached_server_response_increment(instance);
no_reply= false;
}
}
- send_length= (size_t) snprintf(buffer, MEMCACHED_DEFAULT_COMMAND_SIZE,
- "delete %s%.*s %u%s\r\n",
- ptr->prefix_key,
- (int) key_length, key,
- (uint32_t)expiration,
- no_reply ? " noreply" :"" );
+ send_length= snprintf(buffer, MEMCACHED_DEFAULT_COMMAND_SIZE,
+ "delete %.*s%.*s %u%s\r\n",
+ memcached_print_array(ptr->prefix_key),
+ (int) key_length, key,
+ (uint32_t)expiration,
+ no_reply ? " noreply" :"" );
}
}
else
- send_length= (size_t) snprintf(buffer, MEMCACHED_DEFAULT_COMMAND_SIZE,
- "delete %s%.*s%s\r\n",
- ptr->prefix_key,
- (int)key_length, key, no_reply ? " noreply" :"");
+ {
+ send_length= snprintf(buffer, MEMCACHED_DEFAULT_COMMAND_SIZE,
+ "delete %.*s%.*s%s\r\n",
+ memcached_print_array(ptr->prefix_key),
+ (int)key_length, key, no_reply ? " noreply" :"");
+ }
- if (send_length >= MEMCACHED_DEFAULT_COMMAND_SIZE)
+ if (send_length >= MEMCACHED_DEFAULT_COMMAND_SIZE || send_length < 0)
{
rc= MEMCACHED_WRITE_FAILURE;
goto error;
}
- if (ptr->flags.use_udp && !to_write)
+ if (ptr->flags.use_udp && ! to_write)
{
if (send_length > MAX_UDP_DATAGRAM_LENGTH - UDP_DATAGRAM_HEADER_LENGTH)
return MEMCACHED_WRITE_FAILURE;
- if (send_length + ptr->hosts[server_key].write_buffer_offset > MAX_UDP_DATAGRAM_LENGTH)
- memcached_io_write(&ptr->hosts[server_key], NULL, 0, 1);
+ if (send_length + instance->write_buffer_offset > MAX_UDP_DATAGRAM_LENGTH)
+ memcached_io_write(instance, NULL, 0, true);
}
- rc= memcached_do(&ptr->hosts[server_key], buffer, send_length, to_write);
+ rc= memcached_do(instance, buffer, (size_t)send_length, to_write);
}
if (rc != MEMCACHED_SUCCESS)
goto error;
- if (!to_write)
+ if (! to_write)
+ {
rc= MEMCACHED_BUFFERED;
+ }
else if (!no_reply)
{
- rc= memcached_response(&ptr->hosts[server_key], buffer, MEMCACHED_DEFAULT_COMMAND_SIZE, NULL);
+ rc= memcached_response(instance, buffer, MEMCACHED_DEFAULT_COMMAND_SIZE, NULL);
if (rc == MEMCACHED_DELETED)
rc= MEMCACHED_SUCCESS;
}
}
static inline memcached_return_t binary_delete(memcached_st *ptr,
- unsigned int server_key,
+ uint32_t server_key,
const char *key,
size_t key_length,
- uint8_t flush)
+ bool flush)
{
+ memcached_server_write_instance_st instance;
protocol_binary_request_delete request= {.bytes= {0}};
+ instance= memcached_server_instance_fetch(ptr, server_key);
+
request.message.header.request.magic= PROTOCOL_BINARY_REQ;
if (ptr->flags.no_reply)
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.keylen= htons((uint16_t)(key_length + memcached_array_size(ptr->prefix_key)));
request.message.header.request.datatype= PROTOCOL_BINARY_RAW_BYTES;
- request.message.header.request.bodylen= htonl((uint32_t) key_length);
+ request.message.header.request.bodylen= htonl((uint32_t)(key_length + memcached_array_size(ptr->prefix_key)));
- if (ptr->flags.use_udp && !flush)
+ if (ptr->flags.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);
+ if (cmd_size + instance->write_buffer_offset > MAX_UDP_DATAGRAM_LENGTH)
+ memcached_io_write(instance, NULL, 0, true);
}
+ struct libmemcached_io_vector_st vector[]=
+ {
+ { .length= sizeof(request.bytes), .buffer= request.bytes},
+ { .length= memcached_array_size(ptr->prefix_key), .buffer= memcached_array_string(ptr->prefix_key) },
+ { .length= key_length, .buffer= key },
+ };
+
memcached_return_t 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))
+ if ((rc= memcached_vdo(instance, vector, 3, flush)) != MEMCACHED_SUCCESS)
{
- memcached_io_reset(&ptr->hosts[server_key]);
- rc= MEMCACHED_WRITE_FAILURE;
+ memcached_io_reset(instance);
+ rc= (rc == MEMCACHED_SUCCESS) ? MEMCACHED_WRITE_FAILURE : rc;
}
unlikely (ptr->number_of_replicas > 0)
for (uint32_t x= 0; x < ptr->number_of_replicas; ++x)
{
+ memcached_server_write_instance_st replica;
+
++server_key;
if (server_key == memcached_server_count(ptr))
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);
+ replica= memcached_server_instance_fetch(ptr, server_key);
+
+ if (memcached_vdo(replica, vector, 3, flush) != MEMCACHED_SUCCESS)
+ {
+ memcached_io_reset(replica);
+ }
else
- memcached_server_response_decrement(server);
+ {
+ memcached_server_response_decrement(replica);
+ }
}
}
projects / awesomized / libmemcached / blobdiff