git.m6w6.name Git - awesomized/libmemcached/blob - clients/utilities.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 <clients/utilities.h>
  14
  15 #include <cstdio>
  16 #include <cassert>
  17 #include <cstdlib>
  18 #include <cstring>
  19 #include <ctype.h>
  20 #include <fcntl.h>
  21 #include <sys/stat.h>
  22 #include <sys/types.h>
  23 #include <unistd.h>
  24
  25
  26 long int timedif(struct timeval a, struct timeval b)
  27 {
  28   long us, s;
  29
  30   us = (int)(a.tv_usec - b.tv_usec);
  31   us /= 1000;
  32   s = (int)(a.tv_sec - b.tv_sec);
  33   s *= 1000;
  34   return s + us;
  35 }
  36
  37 void version_command(const char *command_name)
  38 {
  39   printf("%s v%u.%u\n", command_name, 1U, 0U);
  40   exit(EXIT_SUCCESS);
  41 }
  42
  43 void close_stdio(void)
  44 {
  45   int fd;
  46   if ((fd = open("/dev/null", O_RDWR, 0)) < 0)
  47   {
  48     return;
  49   }
  50   else
  51   {
  52     if (dup2(fd, STDIN_FILENO) < 0)
  53     {
  54       return;
  55     }
  56
  57     if (dup2(fd, STDOUT_FILENO) < 0)
  58     {
  59       return;
  60     }
  61
  62     if (dup2(fd, STDERR_FILENO) < 0)
  63     {
  64       return;
  65     }
  66
  67     if (fd > STDERR_FILENO)
  68     {
  69       close(fd);
  70     }
  71   }
  72 }
  73
  74
  75 static const char *lookup_help(memcached_options option)
  76 {
  77   switch (option)
  78   {
  79   case OPT_SERVERS: return("List which servers you wish to connect to.");
  80   case OPT_VERSION: return("Display the version of the application and then exit.");
  81   case OPT_HELP: return("Display this message and then exit.");
  82   case OPT_VERBOSE: return("Give more details on the progression of the application.");
  83   case OPT_QUIET: return("stderr and stdin will be closed at application startup.");
  84   case OPT_DEBUG: return("Provide output only useful for debugging.");
  85   case OPT_FLAG: return("Provide flag information for storage operation.");
  86   case OPT_EXPIRE: return("Set the expire option for the object.");
  87   case OPT_SET: return("Use set command with memcached when storing.");
  88   case OPT_REPLACE: return("Use replace command with memcached when storing.");
  89   case OPT_ADD: return("Use add command with memcached when storing.");
  90   case OPT_SLAP_EXECUTE_NUMBER: return("Number of times to execute the given test.");
  91   case OPT_SLAP_INITIAL_LOAD: return("Number of key pairs to load before executing tests.");
  92   case OPT_SLAP_TEST: return("Test to run (currently \"get\" or \"set\").");
  93   case OPT_SLAP_CONCURRENCY: return("Number of users to simulate with load.");
  94   case OPT_SLAP_NON_BLOCK: return("Set TCP up to use non-blocking IO.");
  95   case OPT_SLAP_TCP_NODELAY: return("Set TCP socket up to use nodelay.");
  96   case OPT_FLUSH: return("Flush servers before running tests.");
  97   case OPT_HASH: return("Select hash type.");
  98   case OPT_BINARY: return("Switch to binary protocol.");
  99   case OPT_ANALYZE: return("Analyze the provided servers.");
 100   case OPT_UDP: return("Use UDP protocol when communicating with server.");
 101   case OPT_USERNAME: return "Username to use for SASL authentication";
 102   case OPT_PASSWD: return "Password to use for SASL authentication";
 103   case OPT_FILE: return "Path to file in which to save result";
 104   case OPT_STAT_ARGS: return "Argument for statistics";
 105   default:
 106                       break;
 107   };
 108
 109   assert(0);
 110   return "forgot to document this function :)";
 111 }
 112
 113 void help_command(const char *command_name, const char *description,
 114                   const struct option *long_options,
 115                   memcached_programs_help_st *options)
 116 {
 117   unsigned int x;
 118   (void)options;
 119
 120   printf("%s v%u.%u\n\n", command_name, 1U, 0U);
 121   printf("\t%s\n\n", description);
 122   printf("Current options. A '=' means the option takes a value.\n\n");
 123
 124   for (x= 0; long_options[x].name; x++)
 125   {
 126     const char *help_message;
 127
 128     printf("\t --%s%c\n", long_options[x].name,
 129            long_options[x].has_arg ? '=' : ' ');
 130     if ((help_message= lookup_help(memcached_options(long_options[x].val))))
 131       printf("\t\t%s\n", help_message);
 132   }
 133
 134   printf("\n");
 135   exit(EXIT_SUCCESS);
 136 }
 137
 138 void process_hash_option(memcached_st *memc, char *opt_hash)
 139 {
 140   uint64_t set;
 141   memcached_return_t rc;
 142
 143   if (opt_hash == NULL)
 144     return;
 145
 146   set= MEMCACHED_HASH_DEFAULT; /* Just here to solve warning */
 147   if (!strcasecmp(opt_hash, "CRC"))
 148   {
 149     set= MEMCACHED_HASH_CRC;
 150   }
 151   else if (!strcasecmp(opt_hash, "FNV1_64"))
 152   {
 153     set= MEMCACHED_HASH_FNV1_64;
 154   }
 155   else if (!strcasecmp(opt_hash, "FNV1A_64"))
 156   {
 157     set= MEMCACHED_HASH_FNV1A_64;
 158   }
 159   else if (!strcasecmp(opt_hash, "FNV1_32"))
 160   {
 161     set= MEMCACHED_HASH_FNV1_32;
 162   }
 163   else if (!strcasecmp(opt_hash, "FNV1A_32"))
 164   {
 165     set= MEMCACHED_HASH_FNV1A_32;
 166   }
 167   else
 168   {
 169     fprintf(stderr, "hash: type not recognized %s\n", opt_hash);
 170     exit(EXIT_FAILURE);
 171   }
 172
 173   rc= memcached_behavior_set(memc, MEMCACHED_BEHAVIOR_HASH, set);
 174   if (rc != MEMCACHED_SUCCESS)
 175   {
 176     fprintf(stderr, "hash: memcache error %s\n", memcached_strerror(memc, rc));
 177     exit(EXIT_FAILURE);
 178   }
 179 }
 180
 181 void initialize_sockets(void)
 182 {
 183   /* Define the function for all platforms to avoid #ifdefs in each program */
 184 #if defined(WIN32) && WIN32
 185   WSADATA wsaData;
 186   if (WSAStartup(MAKEWORD(2,0), &wsaData) != 0)
 187   {
 188     fprintf(stderr, "Socket Initialization Error. Program aborted\n");
 189     exit(EXIT_FAILURE);
 190   }
 191 #endif
 192 }