git.m6w6.name Git - m6w6/libmemcached/blob - src/bin/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     free(opt_servers);
  63     return EXIT_FAILURE;
  64   }
  65
  66   free(opt_servers);
  67
  68   memcached_st *memc= memcached_create(NULL);
  69   memcached_server_push(memc, servers);
  70   memcached_server_list_free(servers);
  71   memcached_behavior_set(memc, MEMCACHED_BEHAVIOR_BINARY_PROTOCOL,
  72                          (uint64_t) opt_binary);
  73
  74   if (opt_username and LIBMEMCACHED_WITH_SASL_SUPPORT == 0)
  75   {
  76     memcached_free(memc);
  77     std::cerr << "--username was supplied, but binary was not built with SASL support." << std::endl;
  78     return EXIT_FAILURE;
  79   }
  80
  81   if (opt_username)
  82   {
  83     memcached_return_t ret;
  84     if (memcached_failed(ret= memcached_set_sasl_auth_data(memc, opt_username, opt_passwd)))
  85     {
  86       std::cerr << memcached_last_error_message(memc) << std::endl;
  87       memcached_free(memc);
  88       return EXIT_FAILURE;
  89     }
  90   }
  91
  92   memcached_return_t rc = memcached_flush(memc, opt_expire);
  93   if (rc != MEMCACHED_SUCCESS)
  94   {
  95     std::cerr << memcached_last_error_message(memc) << std::endl;
  96     memcached_free(memc);
  97     return EXIT_FAILURE;
  98   }
  99
 100   memcached_free(memc);
 101   return EXIT_SUCCESS;
 102 }
 103
 104
 105 void options_parse(int argc, char *argv[])
 106 {
 107   static struct option long_options[]=
 108   {
 109     {(OPTIONSTRING)"version", no_argument, NULL, OPT_VERSION},
 110     {(OPTIONSTRING)"help", no_argument, NULL, OPT_HELP},
 111     {(OPTIONSTRING)"quiet", no_argument, NULL, OPT_QUIET},
 112     {(OPTIONSTRING)"verbose", no_argument, &opt_verbose, OPT_VERBOSE},
 113     {(OPTIONSTRING)"debug", no_argument, &opt_verbose, OPT_DEBUG},
 114     {(OPTIONSTRING)"servers", required_argument, NULL, OPT_SERVERS},
 115     {(OPTIONSTRING)"expire", required_argument, NULL, OPT_EXPIRE},
 116     {(OPTIONSTRING)"binary", no_argument, NULL, OPT_BINARY},
 117     {(OPTIONSTRING)"username", required_argument, NULL, OPT_USERNAME},
 118     {(OPTIONSTRING)"password", required_argument, NULL, OPT_PASSWD},
 119     {0, 0, 0, 0},
 120   };
 121
 122   bool opt_version= false;
 123   bool opt_help= false;
 124   int option_index= 0;
 125   while (1)
 126   {
 127     int option_rv= getopt_long(argc, argv, "Vhvds:", long_options, &option_index);
 128     if (option_rv == -1) break;
 129     switch (option_rv)
 130     {
 131     case 0:
 132       break;
 133
 134     case OPT_BINARY:
 135       opt_binary= true;
 136       break;
 137
 138     case OPT_VERBOSE: /* --verbose or -v */
 139       opt_verbose= OPT_VERBOSE;
 140       break;
 141
 142     case OPT_DEBUG: /* --debug or -d */
 143       opt_verbose= OPT_DEBUG;
 144       break;
 145
 146     case OPT_VERSION: /* --version or -V */
 147       opt_version= true;
 148       break;
 149
 150     case OPT_HELP: /* --help or -h */
 151       opt_help= true;
 152       break;
 153
 154     case OPT_SERVERS: /* --servers or -s */
 155       opt_servers= strdup(optarg);
 156       break;
 157
 158     case OPT_EXPIRE: /* --expire */
 159       errno= 0;
 160       opt_expire= (time_t)strtoll(optarg, (char **)NULL, 10);
 161       if (errno != 0)
 162       {
 163         std::cerr << "Incorrect value passed to --expire: `" << optarg << "`" << std::endl;
 164         exit(EXIT_FAILURE);
 165       }
 166       break;
 167
 168     case OPT_USERNAME:
 169       opt_username= optarg;
 170       break;
 171
 172     case OPT_PASSWD:
 173       opt_passwd= optarg;
 174       break;
 175
 176     case OPT_QUIET:
 177       close_stdio();
 178       break;
 179
 180     case '?':
 181       /* getopt_long already printed an error message. */
 182       exit(EXIT_FAILURE);
 183
 184     default:
 185       abort();
 186     }
 187   }
 188
 189   if (opt_version)
 190   {
 191     version_command(PROGRAM_NAME);
 192     exit(EXIT_SUCCESS);
 193   }
 194
 195   if (opt_help)
 196   {
 197     help_command(PROGRAM_NAME, PROGRAM_DESCRIPTION, long_options, NULL);
 198     exit(EXIT_SUCCESS);
 199   }
 200 }