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 == false)
  43   {
  44     char *temp;
  45
  46     if ((temp= getenv("MEMCACHED_SERVERS")))
  47     {
  48       opt_servers= strdup(temp);
  49     }
  50     else
  51     {
  52       std::cerr << "No Servers provided" << std::endl;
  53       exit(EXIT_FAILURE);
  54     }
  55   }
  56
  57   memcached_st *memc= memcached_create(NULL);
  58
  59   memcached_server_st *servers= memcached_servers_parse(opt_servers);
  60   memcached_server_push(memc, servers);
  61   memcached_server_list_free(servers);
  62   memcached_behavior_set(memc, MEMCACHED_BEHAVIOR_BINARY_PROTOCOL,
  63                          (uint64_t) opt_binary);
  64
  65   if (opt_username and LIBMEMCACHED_WITH_SASL_SUPPORT == 0)
  66   {
  67     memcached_free(memc);
  68     std::cerr << "--username was supplied, but binary was not built with SASL support." << std::endl;
  69     return EXIT_FAILURE;
  70   }
  71
  72   if (opt_username)
  73   {
  74     memcached_return_t ret;
  75     if (memcached_failed(ret= memcached_set_sasl_auth_data(memc, opt_username, opt_passwd)))
  76     {
  77       std::cerr << memcached_last_error_message(memc) << std::endl;
  78       memcached_free(memc);
  79       return EXIT_FAILURE;
  80     }
  81   }
  82
  83   memcached_return_t rc = memcached_flush(memc, opt_expire);
  84   if (rc != MEMCACHED_SUCCESS)
  85   {
  86     std::cerr << memcached_last_error_message(memc) << std::endl;
  87   }
  88
  89   memcached_free(memc);
  90
  91   free(opt_servers);
  92
  93   return EXIT_SUCCESS;
  94 }
  95
  96
  97 void options_parse(int argc, char *argv[])
  98 {
  99   static struct option long_options[]=
 100   {
 101     {(OPTIONSTRING)"version", no_argument, NULL, OPT_VERSION},
 102     {(OPTIONSTRING)"help", no_argument, NULL, OPT_HELP},
 103     {(OPTIONSTRING)"quiet", no_argument, NULL, OPT_QUIET},
 104     {(OPTIONSTRING)"verbose", no_argument, &opt_verbose, OPT_VERBOSE},
 105     {(OPTIONSTRING)"debug", no_argument, &opt_verbose, OPT_DEBUG},
 106     {(OPTIONSTRING)"servers", required_argument, NULL, OPT_SERVERS},
 107     {(OPTIONSTRING)"expire", required_argument, NULL, OPT_EXPIRE},
 108     {(OPTIONSTRING)"binary", no_argument, NULL, OPT_BINARY},
 109     {(OPTIONSTRING)"username", required_argument, NULL, OPT_USERNAME},
 110     {(OPTIONSTRING)"password", required_argument, NULL, OPT_PASSWD},
 111     {0, 0, 0, 0},
 112   };
 113
 114   bool opt_version= false;
 115   bool opt_help= false;
 116   int option_index= 0;
 117   while (1)
 118   {
 119     int option_rv= getopt_long(argc, argv, "Vhvds:", long_options, &option_index);
 120     if (option_rv == -1) break;
 121     switch (option_rv)
 122     {
 123     case 0:
 124       break;
 125
 126     case OPT_BINARY:
 127       opt_binary= true;
 128       break;
 129
 130     case OPT_VERBOSE: /* --verbose or -v */
 131       opt_verbose= OPT_VERBOSE;
 132       break;
 133
 134     case OPT_DEBUG: /* --debug or -d */
 135       opt_verbose= OPT_DEBUG;
 136       break;
 137
 138     case OPT_VERSION: /* --version or -V */
 139       opt_version= true;
 140       break;
 141
 142     case OPT_HELP: /* --help or -h */
 143       opt_help= true;
 144       break;
 145
 146     case OPT_SERVERS: /* --servers or -s */
 147       opt_servers= strdup(optarg);
 148       break;
 149
 150     case OPT_EXPIRE: /* --expire */
 151       errno= 0;
 152       opt_expire= (time_t)strtoll(optarg, (char **)NULL, 10);
 153       if (errno != 0)
 154       {
 155         std::cerr << "Incorrect value passed to --expire: `" << optarg << "`" << std::cerr;
 156         exit(EXIT_FAILURE);
 157       }
 158       break;
 159
 160     case OPT_USERNAME:
 161       opt_username= optarg;
 162       break;
 163
 164     case OPT_PASSWD:
 165       opt_passwd= optarg;
 166       break;
 167
 168     case OPT_QUIET:
 169       close_stdio();
 170       break;
 171
 172     case '?':
 173       /* getopt_long already printed an error message. */
 174       exit(EXIT_FAILURE);
 175
 176     default:
 177       abort();
 178     }
 179   }
 180
 181   if (opt_version)
 182   {
 183     version_command(PROGRAM_NAME);
 184     exit(EXIT_SUCCESS);
 185   }
 186
 187   if (opt_help)
 188   {
 189     help_command(PROGRAM_NAME, PROGRAM_DESCRIPTION, long_options, NULL);
 190     exit(EXIT_SUCCESS);
 191   }
 192 }