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   1 /* LibMemcached
   2  * Copyright (C) 2006-2009 Brian Aker
   3  * All rights reserved.
   4  *
   5  * Use and distribution licensed under the BSD license.  See
   6  * the COPYING file in the parent directory for full text.
   7  *
   8  * Summary: String structure used for libmemcached.
   9  *
  10  */
  11
  12 #ifndef __MEMCACHED_SERVER_H__
  13 #define __MEMCACHED_SERVER_H__
  14
  15 #ifdef __cplusplus
  16 extern "C" {
  17 #endif
  18
  19 struct memcached_server_st {
  20   struct {
  21     bool is_allocated:1;
  22     bool sockaddr_inited:1;
  23   } options;
  24   uint16_t count;
  25   uint32_t cursor_active;
  26   in_port_t port;
  27   int cached_errno;
  28   int fd;
  29   uint32_t io_bytes_sent; /* # bytes sent since last read */
  30   uint32_t server_failure_counter;
  31   uint32_t weight;
  32   uint8_t major_version;
  33   uint8_t micro_version;
  34   uint8_t minor_version;
  35   memcached_connection_t type;
  36   char *read_ptr;
  37   char *cached_server_error;
  38   size_t read_buffer_length;
  39   size_t read_data_length;
  40   size_t write_buffer_offset;
  41   struct addrinfo *address_info;
  42   time_t next_retry;
  43   memcached_st *root;
  44   uint64_t limit_maxbytes;
  45   char read_buffer[MEMCACHED_MAX_BUFFER];
  46   char write_buffer[MEMCACHED_MAX_BUFFER];
  47   char hostname[MEMCACHED_MAX_HOST_LENGTH];
  48 };
  49
  50 #define memcached_server_count(A) (A)->number_of_hosts
  51 #define memcached_server_name(A,B) (B).hostname
  52 #define memcached_server_port(A,B) (B).port
  53 #define memcached_server_list(A) (A)->hosts
  54 #define memcached_server_response_count(A) (A)->cursor_active
  55
  56 LIBMEMCACHED_API
  57 memcached_return_t memcached_server_cursor(memcached_st *ptr,
  58                                            memcached_server_fn *callback,
  59                                            void *context,
  60                                            uint32_t number_of_callbacks);
  61
  62 LIBMEMCACHED_API
  63 memcached_server_st *memcached_server_by_key(memcached_st *ptr,
  64                                              const char *key,
  65                                              size_t key_length,
  66                                              memcached_return_t *error);
  67
  68 LIBMEMCACHED_API
  69 const char *memcached_server_error(memcached_server_st *ptr);
  70
  71 LIBMEMCACHED_API
  72 void memcached_server_error_reset(memcached_server_st *ptr);
  73
  74 /* These should not currently be used by end users */
  75 /* TODO: Is the above comment valid? If so, how can we unit test these if they
  76  * aren't exported. If not, we should remove the comment */
  77 LIBMEMCACHED_API
  78 memcached_server_st *memcached_server_create(memcached_st *memc, memcached_server_st *ptr);
  79
  80 LIBMEMCACHED_API
  81 memcached_server_st *memcached_server_create_with(memcached_st *memc,
  82                                                   memcached_server_st *host,
  83                                                   const char *hostname,
  84                                                   in_port_t port,
  85                                                   uint32_t weight,
  86                                                   memcached_connection_t type);
  87
  88 LIBMEMCACHED_API
  89 void memcached_server_free(memcached_server_st *ptr);
  90
  91 LIBMEMCACHED_API
  92 memcached_server_st *memcached_server_clone(memcached_server_st *clone,
  93                                             memcached_server_st *ptr);
  94
  95 LIBMEMCACHED_API
  96 memcached_return_t memcached_server_remove(memcached_server_st *st_ptr);
  97
  98 LIBMEMCACHED_API
  99 memcached_server_st *memcached_server_get_last_disconnect(memcached_st *ptr);
 100
 101 #ifdef __cplusplus
 102 }
 103 #endif
 104
 105 #endif /* __MEMCACHED_SERVER_H__ */