git.m6w6.name Git - awesomized/libmemcached/blob - libmemcached/version.c

   1 #include "common.h"
   2
   3 const char * memcached_lib_version(void)
   4 {
   5   return LIBMEMCACHED_VERSION_STRING;
   6 }
   7
   8 static inline memcached_return_t memcached_version_binary(memcached_st *ptr);
   9 static inline memcached_return_t memcached_version_textual(memcached_st *ptr);
  10
  11 memcached_return_t memcached_version(memcached_st *ptr)
  12 {
  13   if (ptr->flags.use_udp)
  14     return MEMCACHED_NOT_SUPPORTED;
  15
  16   bool was_blocking= ptr->flags.no_block;
  17   memcached_return_t rc;
  18
  19   ptr->flags.no_block= false;
  20
  21   if (ptr->flags.binary_protocol)
  22     rc= memcached_version_binary(ptr);
  23   else
  24     rc= memcached_version_textual(ptr);
  25
  26   ptr->flags.no_block= was_blocking;
  27
  28   return rc;
  29 }
  30
  31 static inline memcached_return_t memcached_version_textual(memcached_st *ptr)
  32 {
  33   size_t send_length;
  34   memcached_return_t rc;
  35   char buffer[MEMCACHED_DEFAULT_COMMAND_SIZE];
  36   char *response_ptr;
  37   const char *command= "version\r\n";
  38
  39   send_length= strlen(command);
  40
  41   rc= MEMCACHED_SUCCESS;
  42   for (uint32_t x= 0; x < memcached_server_count(ptr); x++)
  43   {
  44     memcached_return_t rrc;
  45     memcached_server_write_instance_st instance=
  46       memcached_server_instance_fetch(ptr, x);
  47
  48     rrc= memcached_do(instance, command, send_length, true);
  49     if (rrc != MEMCACHED_SUCCESS)
  50     {
  51       rc= MEMCACHED_SOME_ERRORS;
  52       continue;
  53     }
  54
  55     rrc= memcached_response(instance, buffer, MEMCACHED_DEFAULT_COMMAND_SIZE, NULL);
  56     if (rrc != MEMCACHED_SUCCESS)
  57     {
  58       rc= MEMCACHED_SOME_ERRORS;
  59       continue;
  60     }
  61
  62     /* Find the space, and then move one past it to copy version */
  63     response_ptr= index(buffer, ' ');
  64     response_ptr++;
  65
  66     instance->major_version= (uint8_t)strtol(response_ptr, (char **)NULL, 10);
  67     response_ptr= index(response_ptr, '.');
  68     response_ptr++;
  69     instance->minor_version= (uint8_t)strtol(response_ptr, (char **)NULL, 10);
  70     response_ptr= index(response_ptr, '.');
  71     response_ptr++;
  72     instance->micro_version= (uint8_t)strtol(response_ptr, (char **)NULL, 10);
  73   }
  74
  75   return rc;
  76 }
  77
  78 static inline memcached_return_t memcached_version_binary(memcached_st *ptr)
  79 {
  80   memcached_return_t rc;
  81   protocol_binary_request_version request= { .bytes= {0}};
  82   request.message.header.request.magic= PROTOCOL_BINARY_REQ;
  83   request.message.header.request.opcode= PROTOCOL_BINARY_CMD_VERSION;
  84   request.message.header.request.datatype= PROTOCOL_BINARY_RAW_BYTES;
  85
  86   rc= MEMCACHED_SUCCESS;
  87   for (uint32_t x= 0; x < memcached_server_count(ptr); x++)
  88   {
  89     memcached_return_t rrc;
  90
  91     memcached_server_write_instance_st instance=
  92       memcached_server_instance_fetch(ptr, x);
  93
  94     rrc= memcached_do(instance, request.bytes, sizeof(request.bytes), true);
  95     if (rrc != MEMCACHED_SUCCESS)
  96     {
  97       memcached_io_reset(instance);
  98       rc= MEMCACHED_SOME_ERRORS;
  99       continue;
 100     }
 101   }
 102
 103   for (uint32_t x= 0; x < memcached_server_count(ptr); x++)
 104   {
 105     memcached_server_write_instance_st instance=
 106       memcached_server_instance_fetch(ptr, x);
 107
 108     if (memcached_server_response_count(instance) > 0)
 109     {
 110       memcached_return_t rrc;
 111       char buffer[32];
 112       char *p;
 113
 114       rrc= memcached_response(instance, buffer, sizeof(buffer), NULL);
 115       if (rrc != MEMCACHED_SUCCESS)
 116       {
 117         memcached_io_reset(instance);
 118         rc= MEMCACHED_SOME_ERRORS;
 119         continue;
 120       }
 121
 122       instance->major_version= (uint8_t)strtol(buffer, &p, 10);
 123       instance->minor_version= (uint8_t)strtol(p + 1, &p, 10);
 124       instance->micro_version= (uint8_t)strtol(p + 1, NULL, 10);
 125     }
 126   }
 127
 128   return rc;
 129 }