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

   1 /* LibMemcached
   2  * Copyright (C) 2006-2009 Brian Aker
   3  * All rights reserved.
   4  *
   5  * Use and distribution licensed under the BSD license.  See
   6  * the COPYING file in the parent directory for full text.
   7  *
   8  * Summary:
   9  *
  10  */
  11 #include "config.h"
  12
  13 #include <cstdio>
  14 #include <cstring>
  15 #include <getopt.h>
  16 #include <iostream>
  17 #include <unistd.h>
  18
  19 #include <libmemcached/memcached.h>
  20 #include "client_options.h"
  21 #include "utilities.h"
  22
  23 static int opt_binary= 0;
  24 static int opt_verbose= 0;
  25 static time_t opt_expire= 0;
  26 static char *opt_servers= NULL;
  27 static char *opt_hash= NULL;
  28 static char *opt_username;
  29 static char *opt_passwd;
  30
  31 #define PROGRAM_NAME "memrm"
  32 #define PROGRAM_DESCRIPTION "Erase a key or set of keys from a memcached cluster."
  33
  34 /* Prototypes */
  35 static void options_parse(int argc, char *argv[]);
  36
  37 int main(int argc, char *argv[])
  38 {
  39   memcached_st *memc;
  40   memcached_server_st *servers;
  41
  42   options_parse(argc, argv);
  43   initialize_sockets();
  44
  45   if (opt_servers == 0)
  46   {
  47     char *temp;
  48
  49     if ((temp= getenv("MEMCACHED_SERVERS")))
  50     {
  51       opt_servers= strdup(temp);
  52     }
  53     else
  54     {
  55       std::cerr << "No Servers provided" << std::endl;
  56       return EXIT_FAILURE;
  57     }
  58   }
  59
  60   memc= memcached_create(NULL);
  61   process_hash_option(memc, opt_hash);
  62
  63   servers= memcached_servers_parse(opt_servers);
  64   memcached_server_push(memc, servers);
  65   memcached_server_list_free(servers);
  66   memcached_behavior_set(memc, MEMCACHED_BEHAVIOR_BINARY_PROTOCOL,
  67                          (uint64_t) opt_binary);
  68
  69   if (opt_username and LIBMEMCACHED_WITH_SASL_SUPPORT == 0)
  70   {
  71     memcached_free(memc);
  72     std::cerr << "--username was supplied, but binary was not built with SASL support." << std::endl;
  73     return EXIT_FAILURE;
  74   }
  75
  76   if (opt_username)
  77   {
  78     memcached_return_t ret;
  79     if (memcached_failed(ret= memcached_set_sasl_auth_data(memc, opt_username, opt_passwd)))
  80     {
  81       std::cerr << memcached_last_error_message(memc) << std::endl;
  82       memcached_free(memc);
  83       return EXIT_FAILURE;
  84     }
  85   }
  86
  87   int return_code= EXIT_SUCCESS;
  88
  89   while (optind < argc)
  90   {
  91     memcached_return_t rc= memcached_delete(memc, argv[optind], strlen(argv[optind]), opt_expire);
  92
  93     if (rc == MEMCACHED_NOTFOUND)
  94     {
  95       if (opt_verbose)
  96       {
  97         std::cerr << "Could not find key \"" << argv[optind] << "\"" << std::endl;
  98       }
  99     }
 100     else if (memcached_fatal(rc))
 101     {
 102       if (opt_verbose)
 103       {
 104         std::cerr << "Failed to delete key \"" << argv[optind] << "\" :" <<  memcached_last_error_message(memc) << std::endl;
 105       }
 106
 107       return_code= EXIT_FAILURE;
 108     }
 109     else // success
 110     {
 111       if (opt_verbose)
 112       {
 113         std::cout << "Deleted key " << argv[optind];
 114         if (opt_expire)
 115         {
 116           std::cout << " expires: " << opt_expire << std::endl;
 117         }
 118         std::cout << std::endl;
 119       }
 120     }
 121
 122     optind++;
 123   }
 124
 125   memcached_free(memc);
 126
 127   if (opt_servers)
 128   {
 129     free(opt_servers);
 130   }
 131
 132   if (opt_hash)
 133   {
 134     free(opt_hash);
 135   }
 136
 137   return return_code;
 138 }
 139
 140
 141 static void options_parse(int argc, char *argv[])
 142 {
 143   memcached_programs_help_st help_options[]=
 144   {
 145     {0},
 146   };
 147
 148   static struct option long_options[]=
 149   {
 150     {(OPTIONSTRING)"version", no_argument, NULL, OPT_VERSION},
 151     {(OPTIONSTRING)"help", no_argument, NULL, OPT_HELP},
 152     {(OPTIONSTRING)"quiet", no_argument, NULL, OPT_QUIET},
 153     {(OPTIONSTRING)"verbose", no_argument, &opt_verbose, OPT_VERBOSE},
 154     {(OPTIONSTRING)"debug", no_argument, &opt_verbose, OPT_DEBUG},
 155     {(OPTIONSTRING)"servers", required_argument, NULL, OPT_SERVERS},
 156     {(OPTIONSTRING)"expire", required_argument, NULL, OPT_EXPIRE},
 157     {(OPTIONSTRING)"hash", required_argument, NULL, OPT_HASH},
 158     {(OPTIONSTRING)"binary", no_argument, NULL, OPT_BINARY},
 159     {(OPTIONSTRING)"username", required_argument, NULL, OPT_USERNAME},
 160     {(OPTIONSTRING)"password", required_argument, NULL, OPT_PASSWD},
 161     {0, 0, 0, 0},
 162   };
 163
 164   bool opt_version= false;
 165   bool opt_help= false;
 166   int option_index= 0;
 167
 168   while (1)
 169   {
 170     int option_rv= getopt_long(argc, argv, "Vhvds:", long_options, &option_index);
 171     if (option_rv == -1)
 172     {
 173       break;
 174     }
 175
 176     switch (option_rv)
 177     {
 178     case 0:
 179       break;
 180
 181     case OPT_BINARY:
 182       opt_binary = 1;
 183       break;
 184
 185     case OPT_VERBOSE: /* --verbose or -v */
 186       opt_verbose = OPT_VERBOSE;
 187       break;
 188
 189     case OPT_DEBUG: /* --debug or -d */
 190       opt_verbose = OPT_DEBUG;
 191       break;
 192
 193     case OPT_VERSION: /* --version or -V */
 194       opt_version= true;
 195       break;
 196
 197     case OPT_HELP: /* --help or -h */
 198       opt_help= true;
 199       break;
 200
 201     case OPT_SERVERS: /* --servers or -s */
 202       opt_servers= strdup(optarg);
 203       break;
 204
 205     case OPT_EXPIRE: /* --expire */
 206       opt_expire= (time_t)strtoll(optarg, (char **)NULL, 10);
 207       break;
 208
 209     case OPT_HASH:
 210       opt_hash= strdup(optarg);
 211       break;
 212
 213     case OPT_USERNAME:
 214       opt_username= optarg;
 215       break;
 216
 217     case OPT_PASSWD:
 218       opt_passwd= optarg;
 219       break;
 220
 221     case OPT_QUIET:
 222       close_stdio();
 223       break;
 224
 225     case '?':
 226       /* getopt_long already printed an error message. */
 227       exit(EXIT_SUCCESS);
 228
 229     default:
 230       abort();
 231     }
 232   }
 233
 234   if (opt_version)
 235   {
 236     version_command(PROGRAM_NAME);
 237     exit(EXIT_SUCCESS);
 238   }
 239
 240   if (opt_help)
 241   {
 242     help_command(PROGRAM_NAME, PROGRAM_DESCRIPTION, long_options, help_options);
 243     exit(EXIT_SUCCESS);
 244   }
 245 }