-/* 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.
*
*/
-#ifndef __LIBMEMCACHED_SERVER_H__
-#define __LIBMEMCACHED_SERVER_H__
+#pragma once
+
+enum memcached_server_state_t {
+ MEMCACHED_SERVER_STATE_NEW, // fd == -1, no address lookup has been done
+ MEMCACHED_SERVER_STATE_ADDRINFO, // ADDRRESS information has been gathered
+ MEMCACHED_SERVER_STATE_IN_PROGRESS,
+ MEMCACHED_SERVER_STATE_CONNECTED
+};
struct memcached_server_st {
struct {
- bool is_allocated MEMCACHED_BITFIELD;
- bool is_initialized MEMCACHED_BITFIELD;
- bool sockaddr_inited MEMCACHED_BITFIELD;
- bool is_shutting_down MEMCACHED_BITFIELD;
+ bool is_allocated:1;
+ bool is_initialized:1;
+ bool is_shutting_down:1;
+ bool is_dead:1;
} options;
uint32_t number_of_hosts;
uint32_t cursor_active;
in_port_t port;
- int cached_errno;
- int fd;
+ memcached_socket_t fd;
uint32_t io_bytes_sent; /* # bytes sent since last read */
uint32_t server_failure_counter;
uint32_t weight;
- struct { // Place any "state" sort variables in here.
- bool is_corked;
- } state;
- uint8_t major_version;
- uint8_t micro_version;
- uint8_t minor_version;
+ enum memcached_server_state_t state;
+ struct {
+ uint32_t read;
+ uint32_t write;
+ } io_wait_count;
+ uint8_t major_version; // Default definition of UINT8_MAX means that it has not been set.
+ uint8_t micro_version; // ditto
+ uint8_t minor_version; // ditto
memcached_connection_t type;
char *read_ptr;
- char *cached_server_error;
size_t read_buffer_length;
size_t read_data_length;
size_t write_buffer_offset;
struct addrinfo *address_info;
+ struct addrinfo *address_info_next;
time_t next_retry;
- const memcached_st *root;
+ memcached_st *root;
uint64_t limit_maxbytes;
+ struct memcached_error_t *error_messages;
char read_buffer[MEMCACHED_MAX_BUFFER];
char write_buffer[MEMCACHED_MAX_BUFFER];
char hostname[NI_MAXHOST];
#endif
LIBMEMCACHED_API
-memcached_return_t memcached_server_cursor(memcached_st *ptr,
- memcached_server_fn *callback,
+memcached_return_t memcached_server_cursor(const memcached_st *ptr,
+ const memcached_server_fn *callback,
void *context,
uint32_t number_of_callbacks);
LIBMEMCACHED_API
-memcached_server_st *memcached_server_by_key(memcached_st *ptr,
- const char *key,
- size_t key_length,
- memcached_return_t *error);
-
-LIBMEMCACHED_API
-const char *memcached_server_error(memcached_server_st *ptr);
+ memcached_server_instance_st memcached_server_by_key(const memcached_st *ptr,
+ const char *key,
+ size_t key_length,
+ memcached_return_t *error);
LIBMEMCACHED_API
void memcached_server_error_reset(memcached_server_st *ptr);
-/* These should not currently be used by end users */
-/* TODO: Is the above comment valid? If so, how can we unit test these if they
- * aren't exported. If not, we should remove the comment */
-
-LIBMEMCACHED_LOCAL
-memcached_server_st *memcached_server_create_with(const memcached_st *memc,
- memcached_server_st *host,
- const char *hostname,
- in_port_t port,
- uint32_t weight,
- memcached_connection_t type);
-
LIBMEMCACHED_API
void memcached_server_free(memcached_server_st *ptr);
const memcached_server_st *source);
LIBMEMCACHED_API
-memcached_return_t memcached_server_remove(memcached_server_st *st_ptr);
-
-LIBMEMCACHED_API
-memcached_server_st *memcached_server_get_last_disconnect(memcached_st *ptr);
+memcached_server_instance_st memcached_server_get_last_disconnect(const memcached_st *ptr);
LIBMEMCACHED_API
memcached_return_t memcached_server_add(memcached_st *ptr,
const char *hostname, in_port_t port);
+LIBMEMCACHED_LOCAL
+ memcached_return_t memcached_server_add_parsed(memcached_st *ptr,
+ const char *hostname,
+ size_t hostname_length,
+ in_port_t port,
+ uint32_t weight);
+
LIBMEMCACHED_API
memcached_return_t memcached_server_add_udp_with_weight(memcached_st *ptr,
const char *hostname,
memcached_return_t memcached_server_add_with_weight(memcached_st *ptr, const char *hostname,
in_port_t port,
uint32_t weight);
-/* Server List Public functions */
+/**
+ Operations on Single Servers.
+*/
LIBMEMCACHED_API
-void memcached_server_list_free(memcached_server_st *ptr);
-
+uint32_t memcached_server_response_count(const memcached_server_instance_st self);
LIBMEMCACHED_API
-memcached_return_t memcached_server_push(memcached_st *ptr, memcached_server_st *list);
+const char *memcached_server_name(const memcached_server_instance_st self);
LIBMEMCACHED_API
-memcached_server_st *memcached_server_list_append(memcached_server_st *ptr,
- const char *hostname,
- in_port_t port,
- memcached_return_t *error);
-LIBMEMCACHED_API
-memcached_server_st *memcached_server_list_append_with_weight(memcached_server_st *ptr,
- const char *hostname,
- in_port_t port,
- uint32_t weight,
- memcached_return_t *error);
-LIBMEMCACHED_API
-unsigned int memcached_server_list_count(memcached_server_st *ptr);
+in_port_t memcached_server_port(const memcached_server_instance_st self);
LIBMEMCACHED_API
-uint32_t memcached_servers_count(memcached_server_st *servers);
-
-LIBMEMCACHED_LOCAL
-uint32_t memcached_servers_set_count(memcached_server_st *servers, uint32_t count);
+const char *memcached_server_type(const memcached_server_instance_st ptr);
-#define memcached_server_count(A) (A)->number_of_hosts
-#define memcached_server_name(A,B) (B).hostname
-#define memcached_server_port(A,B) (B).port
-#define memcached_server_list(A) (A)->servers
-#define memcached_server_list_set(A,B) (A)->servers=(B)
-#define memcached_server_response_count(A) (A)->cursor_active
+LIBMEMCACHED_LOCAL
+void __server_free(memcached_server_st *);
#ifdef __cplusplus
} // extern "C"
#endif
-
-#endif /* __LIBMEMCACHED_SERVER_H__ */
projects / awesomized / libmemcached / blobdiff