git.m6w6.name Git - m6w6/libmemcached/blob - clients/memping.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 <unistd.h>
  19
  20 #include <libmemcached-1.0/memcached.h>
  21 #include <libmemcachedutil-1.0/util.h>
  22 #include "client_options.h"
  23 #include "utilities.h"
  24
  25 #include <iostream>
  26
  27 static bool opt_binary= false;
  28 static int opt_verbose= 0;
  29 static time_t opt_expire= 0;
  30 static char *opt_servers= NULL;
  31 static char *opt_username;
  32 static char *opt_passwd;
  33
  34 #define PROGRAM_NAME "memping"
  35 #define PROGRAM_DESCRIPTION "Ping a server to see if it is alive"
  36
  37 /* Prototypes */
  38 void options_parse(int argc, char *argv[]);
  39
  40 int main(int argc, char *argv[])
  41 {
  42   options_parse(argc, argv);
  43
  44   if (opt_servers == NULL)
  45   {
  46     char *temp;
  47
  48     if ((temp= getenv("MEMCACHED_SERVERS")))
  49     {
  50       opt_servers= strdup(temp);
  51     }
  52
  53     if (opt_servers == NULL)
  54     {
  55       std::cerr << "No Servers provided" << std::endl;
  56       exit(EXIT_FAILURE);
  57     }
  58   }
  59
  60   int exit_code= EXIT_SUCCESS;
  61   memcached_server_st *servers= memcached_servers_parse(opt_servers);
  62   if (servers == NULL or memcached_server_list_count(servers) == 0)
  63   {
  64     std::cerr << "Invalid server list provided:" << opt_servers << std::endl;
  65     exit_code= EXIT_FAILURE;
  66   }
  67   else
  68   {
  69     for (uint32_t x= 0; x < memcached_server_list_count(servers); x++)
  70     {
  71       memcached_return_t instance_rc;
  72       const char *hostname= servers[x].hostname;
  73       in_port_t port= servers[x].port;
  74
  75       if (opt_verbose)
  76       {
  77         std::cout << "Trying to ping " << hostname << ":" << port << std::endl;
  78       }
  79
  80       if (libmemcached_util_ping2(hostname, port, opt_username, opt_passwd, &instance_rc) == false)
  81       {
  82         std::cerr << "Failed to ping " << hostname << ":" << port << " " << memcached_strerror(NULL, instance_rc) <<  std::endl;
  83         exit_code= EXIT_FAILURE;
  84       }
  85     }
  86   }
  87   memcached_server_list_free(servers);
  88
  89   free(opt_servers);
  90
  91   return exit_code;
  92 }
  93
  94
  95 void options_parse(int argc, char *argv[])
  96 {
  97   memcached_programs_help_st help_options[]=
  98   {
  99     {0},
 100   };
 101
 102   static struct option long_options[]=
 103   {
 104     {(OPTIONSTRING)"version", no_argument, NULL, OPT_VERSION},
 105     {(OPTIONSTRING)"help", no_argument, NULL, OPT_HELP},
 106     {(OPTIONSTRING)"quiet", no_argument, NULL, OPT_QUIET},
 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)"binary", no_argument, NULL, OPT_BINARY},
 112     {(OPTIONSTRING)"username", required_argument, NULL, OPT_USERNAME},
 113     {(OPTIONSTRING)"password", required_argument, NULL, OPT_PASSWD},
 114     {0, 0, 0, 0},
 115   };
 116
 117   bool opt_version= false;
 118   bool opt_help= false;
 119   int option_index= 0;
 120   while (1)
 121   {
 122     int option_rv= getopt_long(argc, argv, "Vhvds:", long_options, &option_index);
 123
 124     if (option_rv == -1) break;
 125
 126     switch (option_rv)
 127     {
 128     case 0:
 129       break;
 130
 131     case OPT_BINARY:
 132       opt_binary= true;
 133       break;
 134
 135     case OPT_VERBOSE: /* --verbose or -v */
 136       opt_verbose = OPT_VERBOSE;
 137       break;
 138
 139     case OPT_DEBUG: /* --debug or -d */
 140       opt_verbose = OPT_DEBUG;
 141       break;
 142
 143     case OPT_VERSION: /* --version or -V */
 144       version_command(PROGRAM_NAME);
 145       break;
 146
 147     case OPT_HELP: /* --help or -h */
 148       help_command(PROGRAM_NAME, PROGRAM_DESCRIPTION, long_options, help_options);
 149       break;
 150
 151     case OPT_SERVERS: /* --servers or -s */
 152       opt_servers= strdup(optarg);
 153       break;
 154
 155     case OPT_EXPIRE: /* --expire */
 156       errno= 0;
 157       opt_expire= time_t(strtoll(optarg, (char **)NULL, 10));
 158       if (errno != 0)
 159       {
 160         std::cerr << "Incorrect value passed to --expire: `" << optarg << "`" << std::endl;
 161         exit(EXIT_FAILURE);
 162       }
 163       break;
 164
 165     case OPT_USERNAME:
 166       opt_username= optarg;
 167       opt_binary= true;
 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(1);
 181     default:
 182       abort();
 183     }
 184   }
 185
 186   if (opt_version)
 187   {
 188     version_command(PROGRAM_NAME);
 189     exit(EXIT_SUCCESS);
 190   }
 191
 192   if (opt_help)
 193   {
 194     help_command(PROGRAM_NAME, PROGRAM_DESCRIPTION, long_options, help_options);
 195     exit(EXIT_SUCCESS);
 196   }
 197 }