-/* LibMemcached
- * Copyright (C) 2006-2009 Brian Aker
- * All rights reserved.
+/* vim:expandtab:shiftwidth=2:tabstop=2:smarttab:
+ *
+ * Libmemcached library
*
- * Use and distribution licensed under the BSD license. See
- * the COPYING file in the parent directory for full text.
+ * Copyright (C) 2011 Data Differential, http://datadifferential.com/
+ * Copyright (C) 2006-2009 Brian Aker All rights reserved.
*
- * Summary: String structure used for libmemcached.
+ * 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>
-static inline void _server_init(memcached_server_st *self, const memcached_st *root,
- const char *hostname, in_port_t port,
+static inline void _server_init(memcached_server_st *self, memcached_st *root,
+ const memcached_string_t& hostname,
+ in_port_t port,
uint32_t weight, memcached_connection_t type)
{
self->options.is_shutting_down= false;
self->number_of_hosts= 0;
self->cursor_active= 0;
self->port= port;
- self->cached_errno= 0;
- self->fd= -1;
+ self->fd= INVALID_SOCKET;
self->io_bytes_sent= 0;
self->server_failure_counter= 0;
+ self->server_failure_counter_query_id= 0;
self->weight= weight ? weight : 1; // 1 is the default weight value
- WATCHPOINT_SET(self->io_wait_count.read= 0);
- WATCHPOINT_SET(self->io_wait_count.write= 0);
+ self->io_wait_count.read= 0;
+ self->io_wait_count.write= 0;
+ self->io_wait_count.timeouts= 0;
+ self->io_wait_count._bytes_read= 0;
self->major_version= UINT8_MAX;
self->micro_version= UINT8_MAX;
self->minor_version= UINT8_MAX;
self->type= type;
+ self->error_messages= NULL;
self->read_ptr= self->read_buffer;
- self->cached_server_error= NULL;
self->read_buffer_length= 0;
self->read_data_length= 0;
self->write_buffer_offset= 0;
self->address_info= NULL;
self->address_info_next= NULL;
- if (root)
- {
- self->next_retry= root->retry_timeout;
- }
- else
- {
- self->next_retry= 0;
- }
-
- if (self->weight > 1 && root)
- {
- ((memcached_st *)root)->ketama.weighted= true;
- }
+ self->state= MEMCACHED_SERVER_STATE_NEW;
+ self->next_retry= 0;
self->root= root;
- self->limit_maxbytes= 0;
- if (hostname == NULL)
+ if (root)
{
- self->hostname[0]= 0;
+ self->version= ++root->server_info.version;
}
else
{
- strncpy(self->hostname, hostname, NI_MAXHOST - 1);
+ self->version= UINT_MAX;
}
+ self->limit_maxbytes= 0;
+ memcpy(self->hostname, hostname.c_str, hostname.size);
+ self->hostname[hostname.size]= 0;
}
static memcached_server_st *_server_create(memcached_server_st *self, const memcached_st *memc)
{
if (self == NULL)
{
- self= (memcached_server_st *)libmemcached_malloc(memc, sizeof(memcached_server_st));
+ self= libmemcached_xmalloc(memc, struct memcached_server_st);
- if (! self)
+ if (self == NULL)
+ {
return NULL; /* MEMCACHED_MEMORY_ALLOCATION_FAILURE */
+ }
self->options.is_allocated= true;
}
return self;
}
-memcached_server_st *memcached_server_create_with(const memcached_st *memc,
- memcached_server_write_instance_st self,
- const char *hostname, in_port_t port,
- uint32_t weight, memcached_connection_t type)
+memcached_server_st *__server_create_with(memcached_st *memc,
+ memcached_server_write_instance_st self,
+ const memcached_string_t& hostname,
+ const in_port_t port,
+ uint32_t weight,
+ const memcached_connection_t type)
{
+ if (memcached_is_valid_servername(hostname) == false)
+ {
+ memcached_set_error(*memc, MEMCACHED_INVALID_ARGUMENTS, MEMCACHED_AT, memcached_literal_param("Invalid hostname provided"));
+ return NULL;
+ }
+
self= _server_create(self, memc);
if (self == NULL)
+ {
return NULL;
+ }
- _server_init(self, memc, hostname, port, weight, type);
-
+ _server_init(self, const_cast<memcached_st *>(memc), hostname, port, weight, type);
- if (type == MEMCACHED_CONNECTION_UDP)
- {
+ if (memc and memcached_is_udp(memc))
+ {
self->write_buffer_offset= UDP_DATAGRAM_HEADER_LENGTH;
memcached_io_init_udp_header(self, 0);
}
+ if (memc)
+ {
+ memcached_connect_try(self);
+ }
+
return self;
}
-void memcached_server_free(memcached_server_st *self)
+void __server_free(memcached_server_st *self)
{
memcached_quit_server(self, false);
- if (self->cached_server_error)
- free(self->cached_server_error);
-
if (self->address_info)
+ {
freeaddrinfo(self->address_info);
+ self->address_info= NULL;
+ self->address_info_next= NULL;
+ }
+
+ memcached_error_free(*self);
if (memcached_is_allocated(self))
{
- if (self->root)
- {
- libmemcached_free(self->root, self);
- }
- else
- {
- free(self);
- }
+ libmemcached_free(self->root, self);
}
else
{
}
}
+void memcached_server_free(memcached_server_st *self)
+{
+ if (self == NULL)
+ {
+ return;
+ }
+
+ if (memcached_server_list_count(self))
+ {
+ memcached_server_list_free(self);
+ return;
+ }
+
+ __server_free(self);
+}
+
/*
If we do not have a valid object to clone from, we toss an error.
*/
memcached_server_st *memcached_server_clone(memcached_server_st *destination,
- const memcached_server_st *source)
+ memcached_server_st *source)
{
/* We just do a normal create if source is missing */
if (source == NULL)
- return NULL;
-
- destination= memcached_server_create_with(source->root, destination,
- source->hostname, source->port, source->weight,
- source->type);
- if (destination != NULL)
{
- destination->cached_errno= source->cached_errno;
-
- if (source->cached_server_error)
- destination->cached_server_error= strdup(source->cached_server_error);
+ return NULL;
}
+ memcached_string_t hostname= { memcached_string_make_from_cstr(source->hostname) };
+ destination= __server_create_with(source->root, destination,
+ hostname,
+ source->port, source->weight,
+ source->type);
return destination;
}
uint32_t number_of_callbacks)
{
memcached_return_t rc;
- if ((rc= initialize_const_query(ptr)) != MEMCACHED_SUCCESS)
+ if (memcached_failed(rc= initialize_const_query(ptr)))
{
return rc;
}
+ size_t errors= 0;
for (uint32_t x= 0; x < memcached_server_count(ptr); x++)
{
memcached_server_instance_st instance=
for (uint32_t y= 0; y < number_of_callbacks; y++)
{
- unsigned int iferror;
-
- iferror= (*callback[y])(ptr, instance, context);
+ memcached_return_t ret= (*callback[y])(ptr, instance, context);
- if (iferror)
+ if (memcached_failed(ret))
+ {
+ errors++;
continue;
+ }
}
}
- return MEMCACHED_SUCCESS;
+ return errors ? MEMCACHED_SOME_ERRORS : MEMCACHED_SUCCESS;
}
memcached_return_t memcached_server_execute(memcached_st *ptr,
memcached_server_execute_fn callback,
void *context)
{
- for (uint32_t x= 0; x < memcached_server_count(ptr); x++)
+ if (callback == NULL)
{
- memcached_server_write_instance_st instance=
- memcached_server_instance_fetch(ptr, x);
-
- unsigned int iferror;
+ return MEMCACHED_INVALID_ARGUMENTS;
+ }
- iferror= (*callback)(ptr, instance, context);
+ bool some_errors= false;;
+ for (uint32_t x= 0; x < memcached_server_count(ptr); x++)
+ {
+ memcached_server_write_instance_st instance= memcached_server_instance_fetch(ptr, x);
- if (iferror)
- continue;
+ memcached_return_t rc= (*callback)(ptr, instance, context);
+ if (rc == MEMCACHED_INVALID_ARGUMENTS)
+ {
+ return rc;
+ }
+ else if (memcached_fatal(rc))
+ {
+ some_errors= true;
+ }
}
+ (void)some_errors;
return MEMCACHED_SUCCESS;
}
-memcached_server_instance_st memcached_server_by_key(const memcached_st *ptr,
+memcached_server_instance_st memcached_server_by_key(memcached_st *ptr,
const char *key,
size_t key_length,
memcached_return_t *error)
{
- memcached_return_t rc;
- if (memcached_failed(rc= initialize_const_query(ptr)))
+ memcached_return_t unused;
+ if (not error)
{
- if (error)
- *error= rc;
-
- return NULL;
+ error= &unused;
}
- if (memcached_failed(rc= memcached_validate_key_length(key_length, ptr->flags.binary_protocol)))
- {
- if (error)
- *error= rc;
+ memcached_return_t rc;
+ if (memcached_failed(rc= initialize_const_query(ptr)))
+ {
+ *error= rc;
return NULL;
}
- if (ptr->flags.verify_key && (memcached_key_test((const char **)&key, &key_length, 1) == MEMCACHED_BAD_KEY_PROVIDED))
+ if (memcached_failed((memcached_key_test(*ptr, (const char **)&key, &key_length, 1))))
{
- if (error)
- *error= MEMCACHED_BAD_KEY_PROVIDED;
+ *error= memcached_last_error(ptr);
return NULL;
}
void memcached_server_error_reset(memcached_server_st *self)
{
WATCHPOINT_ASSERT(self);
- if (not self)
+ if (self == NULL)
+ {
return;
+ }
- self->cached_server_error[0]= 0;
+ memcached_error_free(*self);
}
memcached_server_instance_st memcached_server_get_last_disconnect(const memcached_st *self)
{
WATCHPOINT_ASSERT(self);
- if (not self)
- return 0;
-
- return self->last_disconnected_server;
-}
-
-void memcached_server_list_free(memcached_server_list_st self)
-{
- if (not self)
- return;
-
- for (uint32_t x= 0; x < memcached_server_list_count(self); x++)
+ if (self == NULL)
{
- if (self[x].address_info)
- {
- freeaddrinfo(self[x].address_info);
- self[x].address_info= NULL;
- }
+ return 0;
}
- const memcached_st *root= self->root;
- if (root)
- {
- libmemcached_free(root, self);
- }
- else
- {
- free(self);
- }
+ return self->last_disconnected_server;
}
uint32_t memcached_servers_set_count(memcached_server_st *servers, uint32_t count)
{
WATCHPOINT_ASSERT(servers);
- if (not servers)
+ if (servers == NULL)
+ {
return 0;
+ }
return servers->number_of_hosts= count;
}
uint32_t memcached_server_count(const memcached_st *self)
{
WATCHPOINT_ASSERT(self);
- if (not self)
+ if (self == NULL)
return 0;
return self->number_of_hosts;
}
-const char *memcached_server_name(memcached_server_instance_st self)
+const char *memcached_server_name(const memcached_server_instance_st self)
{
WATCHPOINT_ASSERT(self);
- if (not self)
+ if (self == NULL)
return NULL;
return self->hostname;
}
-in_port_t memcached_server_port(memcached_server_instance_st self)
+in_port_t memcached_server_port(const memcached_server_instance_st self)
{
WATCHPOINT_ASSERT(self);
- if (not self)
+ if (self == NULL)
+ {
return 0;
+ }
return self->port;
}
-uint32_t memcached_server_response_count(memcached_server_instance_st self)
+uint32_t memcached_server_response_count(const memcached_server_instance_st self)
{
WATCHPOINT_ASSERT(self);
- if (not self)
+ if (self == NULL)
+ {
return 0;
+ }
return self->cursor_active;
}
-const char *memcached_server_error(memcached_server_instance_st ptr)
+const char *memcached_server_type(const memcached_server_instance_st ptr)
{
- return ptr ? ptr->cached_server_error : NULL;
-}
+ if (ptr)
+ {
+ switch (ptr->type)
+ {
+ case MEMCACHED_CONNECTION_TCP:
+ return "TCP";
+ case MEMCACHED_CONNECTION_UDP:
+ return "UDP";
+
+ case MEMCACHED_CONNECTION_UNIX_SOCKET:
+ return "SOCKET";
+ }
+ }
+
+ return "UNKNOWN";
+}
projects / m6w6 / libmemcached / blobdiff