git.m6w6.name Git - awesomized/libmemcached/blob - libmemcached/verbosity.cc

   1 /*  vim:expandtab:shiftwidth=2:tabstop=2:smarttab:
   2  *
   3  *  Libmemcached library
   4  *
   5  *  Copyright (C) 2011 Data Differential, http://datadifferential.com/
   6  *  Copyright (C) 2010 Brian Aker All rights reserved.
   7  *
   8  *  Redistribution and use in source and binary forms, with or without
   9  *  modification, are permitted provided that the following conditions are
  10  *  met:
  11  *
  12  *      * Redistributions of source code must retain the above copyright
  13  *  notice, this list of conditions and the following disclaimer.
  14  *
  15  *      * Redistributions in binary form must reproduce the above
  16  *  copyright notice, this list of conditions and the following disclaimer
  17  *  in the documentation and/or other materials provided with the
  18  *  distribution.
  19  *
  20  *      * The names of its contributors may not be used to endorse or
  21  *  promote products derived from this software without specific prior
  22  *  written permission.
  23  *
  24  *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  25  *  "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  26  *  LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  27  *  A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  28  *  OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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  30  *  LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  31  *  DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  32  *  THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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  34  *  OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  35  *
  36  */
  37
  38 #include <libmemcached/common.h>
  39
  40 struct context_st
  41 {
  42   size_t length;
  43   const char *buffer;
  44 };
  45
  46 static memcached_return_t _set_verbosity(const memcached_st *ptr,
  47                                          const memcached_server_st *server,
  48                                          void *context)
  49 {
  50   memcached_return_t rc;
  51   memcached_st local_memc;
  52   memcached_st *memc_ptr;
  53   char buffer[MEMCACHED_DEFAULT_COMMAND_SIZE];
  54
  55   struct context_st *execute= (struct context_st *)context;
  56   (void)ptr;
  57
  58   memc_ptr= memcached_create(&local_memc);
  59
  60   rc= memcached_server_add(memc_ptr, memcached_server_name(server), memcached_server_port(server));
  61
  62   if (rc == MEMCACHED_SUCCESS)
  63   {
  64     memcached_server_write_instance_st instance=
  65       memcached_server_instance_fetch(memc_ptr, 0);
  66
  67     rc= memcached_do(instance, execute->buffer, execute->length, true);
  68
  69     if (rc == MEMCACHED_SUCCESS)
  70     {
  71       rc= memcached_response(instance, buffer, MEMCACHED_DEFAULT_COMMAND_SIZE, NULL);
  72     }
  73   }
  74
  75   memcached_free(memc_ptr);
  76
  77   return rc;
  78 }
  79
  80 memcached_return_t memcached_verbosity(memcached_st *ptr, uint32_t verbosity)
  81 {
  82   int send_length;
  83   memcached_server_fn callbacks[1];
  84
  85   char buffer[MEMCACHED_DEFAULT_COMMAND_SIZE];
  86
  87   send_length= snprintf(buffer, MEMCACHED_DEFAULT_COMMAND_SIZE,
  88                                  "verbosity %u\r\n", verbosity);
  89   if (send_length >= MEMCACHED_DEFAULT_COMMAND_SIZE || send_length < 0)
  90   {
  91     return memcached_set_error(*ptr, MEMCACHED_MEMORY_ALLOCATION_FAILURE, MEMCACHED_AT,
  92                                memcached_literal_param("snprintf(MEMCACHED_DEFAULT_COMMAND_SIZE)"));
  93   }
  94
  95   struct context_st context = { (size_t)send_length, buffer };
  96
  97   callbacks[0]= _set_verbosity;
  98
  99   return memcached_server_cursor(ptr, callbacks, &context, 1);
 100 }