git.m6w6.name Git - awesomized/libmemcached/blob - lib/memcached.c

   1 /*
   2   Memcached library
   3 */
   4 #include <memcached.h>
   5
   6 memcached_st *memcached_init(memcached_st *ptr)
   7 {
   8   if (!ptr)
   9   {
  10     ptr= (memcached_st *)malloc(sizeof(memcached_st));
  11
  12     if (!ptr)
  13       return NULL; /*  MEMCACHED_MEMORY_ALLOCATION_FAILURE */
  14
  15     memset(ptr, 0, sizeof(memcached_st));
  16     ptr->is_allocated= MEMCACHED_ALLOCATED;
  17   }
  18   else
  19   {
  20     memset(ptr, 0, sizeof(memcached_st));
  21   }
  22   ptr->fd= -1;
  23
  24   return ptr;
  25 }
  26
  27 memcached_return memcached_increment(memcached_st *ptr, char *key, size_t key_length,
  28                                      unsigned int count)
  29 {
  30   return MEMCACHED_SUCCESS;
  31 }
  32
  33 memcached_return memcached_decrement(memcached_st *ptr, char *key, size_t key_length,
  34                                      unsigned int count)
  35 {
  36   return MEMCACHED_SUCCESS;
  37 }
  38
  39 memcached_return memcached_flush(memcached_st *ptr, time_t expiration)
  40 {
  41   size_t send_length;
  42   memcached_return rc;
  43   char buffer[MEMCACHED_DEFAULT_COMMAND_SIZE];
  44
  45   rc= memcached_connect(ptr);
  46
  47   if (expiration)
  48     send_length= snprintf(buffer, MEMCACHED_DEFAULT_COMMAND_SIZE,
  49                           "flush_all %u\r\n", expiration);
  50   else
  51     send_length= snprintf(buffer, MEMCACHED_DEFAULT_COMMAND_SIZE,
  52                           "flush_all\r\n");
  53   if ((send(ptr->fd, buffer, send_length, 0) == -1))
  54   {
  55     fprintf(stderr, "failed flush_all TCP\n");
  56
  57     return MEMCACHED_WRITE_FAILURE;
  58   }
  59
  60   return memcached_response(ptr, buffer, MEMCACHED_DEFAULT_COMMAND_SIZE);
  61 }
  62
  63 memcached_return memcached_verbosity(memcached_st *ptr, unsigned int verbosity)
  64 {
  65   size_t send_length;
  66   memcached_return rc;
  67   char buffer[MEMCACHED_DEFAULT_COMMAND_SIZE];
  68
  69   rc= memcached_connect(ptr);
  70
  71   send_length= snprintf(buffer, MEMCACHED_DEFAULT_COMMAND_SIZE,
  72                         "verbosity %u\r\n", verbosity);
  73
  74   if ((send(ptr->fd, buffer, send_length, 0) == -1))
  75   {
  76     fprintf(stderr, "failed verbosity\n");
  77
  78     return MEMCACHED_WRITE_FAILURE;
  79   }
  80
  81   return memcached_response(ptr, buffer, MEMCACHED_DEFAULT_COMMAND_SIZE);
  82 }
  83
  84 /*
  85   When this is implemented you will be able to remove single hosts
  86   from your current pool of hosts.
  87 */
  88 memcached_return memcached_quit(memcached_st *ptr, char *hostname, unsigned port)
  89 {
  90   return MEMCACHED_SUCCESS;
  91 }
  92
  93 void memcached_deinit(memcached_st *ptr)
  94 {
  95   memcached_host_st *host_ptr;
  96
  97   if (ptr->fd > 0)
  98     close(ptr->fd);
  99
 100   for (host_ptr= ptr->hosts; host_ptr;)
 101   {
 102     memcached_host_st *temp;
 103
 104     temp= host_ptr;
 105     host_ptr= host_ptr->next;
 106     if (temp->hostname)
 107       free(temp->hostname);
 108     free(temp);
 109   }
 110
 111   if (ptr->is_allocated == MEMCACHED_ALLOCATED)
 112     free(ptr);
 113   else
 114     memset(ptr, 0, sizeof(memcached_st));
 115 }
 116
 117 char *memcached_strerror(memcached_st *ptr, memcached_return rc)
 118 {
 119   switch (rc)
 120   {
 121   case MEMCACHED_SUCCESS:
 122     return "SUCCESS";
 123   case MEMCACHED_FAILURE:
 124     return "FAILURE";
 125   case MEMCACHED_HOST_LOCKUP_FAILURE:
 126     return "HOSTNAME LOOKUP FAILURE";
 127   case MEMCACHED_CONNECTION_FAILURE:
 128     return "CONNECTION FAILURE";
 129   case MEMCACHED_CONNECTION_BIND_FAILURE:
 130     return "CONNECTION BIND FAILURE";
 131   case MEMCACHED_READ_FAILURE:
 132     return "READ FAILURE";
 133   case MEMCACHED_UNKNOWN_READ_FAILURE:
 134     return "UNKNOWN READ FAILURE";
 135   case MEMCACHED_PROTOCOL_ERROR:
 136     return "PROTOCOL ERROR";
 137   case MEMCACHED_CLIENT_ERROR:
 138     return "CLIENT ERROR";
 139   case MEMCACHED_SERVER_ERROR:
 140     return "SERVER ERROR";
 141   case MEMCACHED_WRITE_FAILURE:
 142     return "WRITE FAILURE";
 143   case MEMCACHED_CONNECTION_SOCKET_CREATE_FAILURE:
 144     return "CONNECTION SOCKET CREATE FAILURE";
 145   case MEMCACHED_DATA_EXISTS:
 146     return "CONNECTION DATA EXISTS";
 147   case MEMCACHED_DATA_DOES_NOT_EXIST:
 148     return "CONNECTION DATA DOES NOT EXIST";
 149   case MEMCACHED_NOTSTORED:
 150     return "NOT STORED";
 151   case MEMCACHED_NOTFOUND:
 152     return "NOT FOUND";
 153   case MEMCACHED_MEMORY_ALLOCATION_FAILURE:
 154     return "MEMORY ALLOCATION FAILURE";
 155   case MEMCACHED_PARTIAL_READ:
 156     return "PARTIAL READ";
 157   };
 158 }