git.m6w6.name Git - awesomized/libmemcached/blob - clients/memflush.cc

   1 /* LibMemcached
   2  * Copyright (C) 2011-2012 Data Differential, http://datadifferential.com/
   3  * Copyright (C) 2006-2009 Brian Aker
   4  * All rights reserved.
   5  *
   6  * Use and distribution licensed under the BSD license.  See
   7  * the COPYING file in the parent directory for full text.
   8  *
   9  * Summary:
  10  *
  11  */
  12 #include "mem_config.h"
  13
  14 #include <cerrno>
  15 #include <cstdio>
  16 #include <cstring>
  17 #include <getopt.h>
  18 #include <iostream>
  19 #include <unistd.h>
  20
  21 #include <libmemcached-1.0/memcached.h>
  22 #include "client_options.h"
  23 #include "utilities.h"
  24
  25 static int opt_binary= 0;
  26 static int opt_verbose= 0;
  27 static time_t opt_expire= 0;
  28 static char *opt_servers= NULL;
  29 static char *opt_username;
  30 static char *opt_passwd;
  31
  32 #define PROGRAM_NAME "memflush"
  33 #define PROGRAM_DESCRIPTION "Erase all data in a server of memcached servers."
  34
  35 /* Prototypes */
  36 void options_parse(int argc, char *argv[]);
  37
  38 int main(int argc, char *argv[])
  39 {
  40   options_parse(argc, argv);
  41
  42   if (opt_servers == NULL)
  43   {
  44     char *temp;
  45
  46     if ((temp= getenv("MEMCACHED_SERVERS")))
  47     {
  48       opt_servers= strdup(temp);
  49     }
  50
  51     if (opt_servers == NULL)
  52     {
  53       std::cerr << "No Servers provided" << std::endl;
  54       exit(EXIT_FAILURE);
  55     }
  56   }
  57
  58   memcached_server_st* servers= memcached_servers_parse(opt_servers);
  59   if (servers == NULL or memcached_server_list_count(servers) == 0)
  60   {
  61     std::cerr << "Invalid server list provided:" << opt_servers << std::endl;
  62     return EXIT_FAILURE;
  63   }
  64
  65   memcached_st *memc= memcached_create(NULL);
  66   memcached_server_push(memc, servers);
  67   memcached_server_list_free(servers);
  68   memcached_behavior_set(memc, MEMCACHED_BEHAVIOR_BINARY_PROTOCOL,
  69                          (uint64_t) opt_binary);
  70
  71   if (opt_username and LIBMEMCACHED_WITH_SASL_SUPPORT == 0)
  72   {
  73     memcached_free(memc);
  74     std::cerr << "--username was supplied, but binary was not built with SASL support." << std::endl;
  75     return EXIT_FAILURE;
  76   }
  77
  78   if (opt_username)
  79   {
  80     memcached_return_t ret;
  81     if (memcached_failed(ret= memcached_set_sasl_auth_data(memc, opt_username, opt_passwd)))
  82     {
  83       std::cerr << memcached_last_error_message(memc) << std::endl;
  84       memcached_free(memc);
  85       return EXIT_FAILURE;
  86     }
  87   }
  88
  89   memcached_return_t rc = memcached_flush(memc, opt_expire);
  90   if (rc != MEMCACHED_SUCCESS)
  91   {
  92     std::cerr << memcached_last_error_message(memc) << std::endl;
  93   }
  94
  95   memcached_free(memc);
  96
  97   free(opt_servers);
  98
  99   return EXIT_SUCCESS;
 100 }
 101
 102
 103 void options_parse(int argc, char *argv[])
 104 {
 105   static struct option long_options[]=
 106   {
 107     {(OPTIONSTRING)"version", no_argument, NULL, OPT_VERSION},
 108     {(OPTIONSTRING)"help", no_argument, NULL, OPT_HELP},
 109     {(OPTIONSTRING)"quiet", no_argument, NULL, OPT_QUIET},
 110     {(OPTIONSTRING)"verbose", no_argument, &opt_verbose, OPT_VERBOSE},
 111     {(OPTIONSTRING)"debug", no_argument, &opt_verbose, OPT_DEBUG},
 112     {(OPTIONSTRING)"servers", required_argument, NULL, OPT_SERVERS},
 113     {(OPTIONSTRING)"expire", required_argument, NULL, OPT_EXPIRE},
 114     {(OPTIONSTRING)"binary", no_argument, NULL, OPT_BINARY},
 115     {(OPTIONSTRING)"username", required_argument, NULL, OPT_USERNAME},
 116     {(OPTIONSTRING)"password", required_argument, NULL, OPT_PASSWD},
 117     {0, 0, 0, 0},
 118   };
 119
 120   bool opt_version= false;
 121   bool opt_help= false;
 122   int option_index= 0;
 123   while (1)
 124   {
 125     int option_rv= getopt_long(argc, argv, "Vhvds:", long_options, &option_index);
 126     if (option_rv == -1) break;
 127     switch (option_rv)
 128     {
 129     case 0:
 130       break;
 131
 132     case OPT_BINARY:
 133       opt_binary= true;
 134       break;
 135
 136     case OPT_VERBOSE: /* --verbose or -v */
 137       opt_verbose= OPT_VERBOSE;
 138       break;
 139
 140     case OPT_DEBUG: /* --debug or -d */
 141       opt_verbose= OPT_DEBUG;
 142       break;
 143
 144     case OPT_VERSION: /* --version or -V */
 145       opt_version= true;
 146       break;
 147
 148     case OPT_HELP: /* --help or -h */
 149       opt_help= true;
 150       break;
 151
 152     case OPT_SERVERS: /* --servers or -s */
 153       opt_servers= strdup(optarg);
 154       break;
 155
 156     case OPT_EXPIRE: /* --expire */
 157       errno= 0;
 158       opt_expire= (time_t)strtoll(optarg, (char **)NULL, 10);
 159       if (errno != 0)
 160       {
 161         std::cerr << "Incorrect value passed to --expire: `" << optarg << "`" << std::endl;
 162         exit(EXIT_FAILURE);
 163       }
 164       break;
 165
 166     case OPT_USERNAME:
 167       opt_username= optarg;
 168       break;
 169
 170     case OPT_PASSWD:
 171       opt_passwd= optarg;
 172       break;
 173
 174     case OPT_QUIET:
 175       close_stdio();
 176       break;
 177
 178     case '?':
 179       /* getopt_long already printed an error message. */
 180       exit(EXIT_FAILURE);
 181
 182     default:
 183       abort();
 184     }
 185   }
 186
 187   if (opt_version)
 188   {
 189     version_command(PROGRAM_NAME);
 190     exit(EXIT_SUCCESS);
 191   }
 192
 193   if (opt_help)
 194   {
 195     help_command(PROGRAM_NAME, PROGRAM_DESCRIPTION, long_options, NULL);
 196     exit(EXIT_SUCCESS);
 197   }
 198 }