git.m6w6.name Git - m6w6/libmemcached/blob - clients/memrm.c

   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
  12 #include "libmemcached/common.h"
  13 #include <stdio.h>
  14 #include <unistd.h>
  15 #include <getopt.h>
  16 #include <libmemcached/memcached.h>
  17 #include <string.h>
  18 #include "client_options.h"
  19 #include "utilities.h"
  20
  21 static int opt_binary= 0;
  22 static int opt_verbose= 0;
  23 static time_t opt_expire= 0;
  24 static char *opt_servers= NULL;
  25 static char *opt_hash= NULL;
  26
  27 #define PROGRAM_NAME "memrm"
  28 #define PROGRAM_DESCRIPTION "Erase a key or set of keys from a memcached cluster."
  29
  30 /* Prototypes */
  31 static void options_parse(int argc, char *argv[]);
  32
  33 int main(int argc, char *argv[])
  34 {
  35   memcached_st *memc;
  36   memcached_return_t rc;
  37   memcached_server_st *servers;
  38
  39   int return_code= 0;
  40
  41   options_parse(argc, argv);
  42
  43   if (!opt_servers)
  44   {
  45     char *temp;
  46
  47     if ((temp= getenv("MEMCACHED_SERVERS")))
  48       opt_servers= strdup(temp);
  49     else
  50     {
  51       fprintf(stderr, "No Servers provided\n");
  52       exit(1);
  53     }
  54   }
  55
  56   memc= memcached_create(NULL);
  57   process_hash_option(memc, opt_hash);
  58
  59   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   while (optind < argc)
  66   {
  67     if (opt_verbose)
  68       printf("key: %s\nexpires: %llu\n", argv[optind], (unsigned long long)opt_expire);
  69     rc = memcached_delete(memc, argv[optind], strlen(argv[optind]), opt_expire);
  70
  71     if (rc != MEMCACHED_SUCCESS)
  72     {
  73       fprintf(stderr, "memrm: %s: memcache error %s",
  74               argv[optind], memcached_strerror(memc, rc));
  75       if (memc->cached_errno)
  76         fprintf(stderr, " system error %s", strerror(memc->cached_errno));
  77       fprintf(stderr, "\n");
  78
  79       return_code= -1;
  80     }
  81
  82     optind++;
  83   }
  84
  85   memcached_free(memc);
  86
  87   if (opt_servers)
  88     free(opt_servers);
  89   if (opt_hash)
  90     free(opt_hash);
  91
  92   return return_code;
  93 }
  94
  95
  96 static void options_parse(int argc, char *argv[])
  97 {
  98   memcached_programs_help_st help_options[]=
  99   {
 100     {0},
 101   };
 102
 103   static struct option long_options[]=
 104   {
 105     {(OPTIONSTRING)"version", no_argument, NULL, OPT_VERSION},
 106     {(OPTIONSTRING)"help", no_argument, NULL, OPT_HELP},
 107     {(OPTIONSTRING)"verbose", no_argument, &opt_verbose, OPT_VERBOSE},
 108     {(OPTIONSTRING)"debug", no_argument, &opt_verbose, OPT_DEBUG},
 109     {(OPTIONSTRING)"servers", required_argument, NULL, OPT_SERVERS},
 110     {(OPTIONSTRING)"expire", required_argument, NULL, OPT_EXPIRE},
 111     {(OPTIONSTRING)"hash", required_argument, NULL, OPT_HASH},
 112     {(OPTIONSTRING)"binary", no_argument, NULL, OPT_BINARY},
 113     {0, 0, 0, 0},
 114   };
 115   int option_index= 0;
 116   int option_rv;
 117
 118   while (1)
 119   {
 120     option_rv= getopt_long(argc, argv, "Vhvds:", long_options, &option_index);
 121     if (option_rv == -1) break;
 122     switch (option_rv)
 123     {
 124     case 0:
 125       break;
 126     case OPT_BINARY:
 127       opt_binary = 1;
 128       break;
 129     case OPT_VERBOSE: /* --verbose or -v */
 130       opt_verbose = OPT_VERBOSE;
 131       break;
 132     case OPT_DEBUG: /* --debug or -d */
 133       opt_verbose = OPT_DEBUG;
 134       break;
 135     case OPT_VERSION: /* --version or -V */
 136       version_command(PROGRAM_NAME);
 137       break;
 138     case OPT_HELP: /* --help or -h */
 139       help_command(PROGRAM_NAME, PROGRAM_DESCRIPTION, long_options, help_options);
 140       break;
 141     case OPT_SERVERS: /* --servers or -s */
 142       opt_servers= strdup(optarg);
 143       break;
 144     case OPT_EXPIRE: /* --expire */
 145       opt_expire= (time_t)strtoll(optarg, (char **)NULL, 10);
 146       break;
 147     case OPT_HASH:
 148       opt_hash= strdup(optarg);
 149       break;
 150     case '?':
 151       /* getopt_long already printed an error message. */
 152       exit(1);
 153     default:
 154       abort();
 155     }
 156   }
 157 }