git.m6w6.name Git - m6w6/libmemcached/blob - libtest/blobslap_worker.cc

   1 /*  vim:expandtab:shiftwidth=2:tabstop=2:smarttab:
   2  *
   3  *  Data Differential YATL (i.e. libtest)  library
   4  *
   5  *  Copyright (C) 2012 Data Differential, http://datadifferential.com/
   6  *
   7  *  Redistribution and use in source and binary forms, with or without
   8  *  modification, are permitted provided that the following conditions are
   9  *  met:
  10  *
  11  *      * Redistributions of source code must retain the above copyright
  12  *  notice, this list of conditions and the following disclaimer.
  13  *
  14  *      * Redistributions in binary form must reproduce the above
  15  *  copyright notice, this list of conditions and the following disclaimer
  16  *  in the documentation and/or other materials provided with the
  17  *  distribution.
  18  *
  19  *      * The names of its contributors may not be used to endorse or
  20  *  promote products derived from this software without specific prior
  21  *  written permission.
  22  *
  23  *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  24  *  "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  25  *  LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  26  *  A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  27  *  OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  28  *  SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  29  *  LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  30  *  DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  31  *  THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  32  *  (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  33  *  OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  34  *
  35  */
  36
  37
  38 #include <config.h>
  39 #include <libtest/common.h>
  40
  41 #include <libtest/blobslap_worker.h>
  42
  43 #include <cassert>
  44 #include <cerrno>
  45 #include <cstdio>
  46 #include <cstdlib>
  47 #include <cstring>
  48 #include <iostream>
  49 #include <signal.h>
  50 #include <sys/types.h>
  51 #include <sys/wait.h>
  52 #include <unistd.h>
  53
  54 #include <libgearman/gearman.h>
  55
  56 #ifndef __INTEL_COMPILER
  57 #pragma GCC diagnostic ignored "-Wold-style-cast"
  58 #endif
  59
  60 namespace libtest {
  61
  62 class BlobslapWorker : public Server
  63 {
  64 private:
  65 public:
  66   BlobslapWorker(in_port_t port_arg) :
  67     Server("localhost", port_arg, "benchmark/blobslap_worker", true)
  68   {
  69     set_pid_file();
  70   }
  71
  72   pid_t get_pid(bool error_is_ok)
  73   {
  74     if (pid_file().empty())
  75     {
  76       Error << "pid_file was empty";
  77       return -1;
  78     }
  79
  80     Wait wait(pid_file(), 0);
  81
  82     if (error_is_ok and not wait.successful())
  83     {
  84       Error << "Pidfile was not found:" << pid_file();
  85       return -1;
  86     }
  87
  88     std::stringstream error_message;
  89     pid_t ret= get_pid_from_file(pid_file(), error_message);
  90
  91     if (error_is_ok and is_pid_valid(ret) == false)
  92     {
  93       Error << error_message.str();
  94     }
  95
  96     return ret;
  97   }
  98
  99   bool ping()
 100   {
 101     if (pid_file().empty())
 102     {
 103       Error << "No pid file available";
 104       return false;
 105     }
 106
 107     Wait wait(pid_file(), 0);
 108     if (not wait.successful())
 109     {
 110       Error << "Pidfile was not found:" << pid_file();
 111       return false;
 112     }
 113
 114     std::stringstream error_message;
 115     pid_t local_pid= get_pid_from_file(pid_file(), error_message);
 116     if (is_pid_valid(local_pid) == false)
 117     {
 118       Error << error_message.str();
 119       return false;
 120     }
 121
 122     // Use kill to determine is the process exist
 123     if (::kill(local_pid, 0) == 0)
 124     {
 125       return true;
 126     }
 127
 128     return false;
 129   }
 130
 131   const char *name()
 132   {
 133     return "blobslap_worker";
 134   };
 135
 136   bool has_port_option() const
 137   {
 138     return true;
 139   }
 140
 141   bool has_log_file_option() const
 142   {
 143     return true;
 144   }
 145
 146   bool is_libtool()
 147   {
 148     return true;
 149   }
 150
 151   bool build(size_t argc, const char *argv[]);
 152 };
 153
 154
 155 #include <sstream>
 156
 157 bool BlobslapWorker::build(size_t argc, const char *argv[])
 158 {
 159   std::stringstream arg_buffer;
 160
 161   for (size_t x= 0 ; x < argc ; x++)
 162   {
 163     add_option(argv[x]);
 164   }
 165
 166   return true;
 167 }
 168
 169 Server *build_blobslap_worker(in_port_t try_port)
 170 {
 171   return new BlobslapWorker(try_port);
 172 }
 173
 174 } // namespace libtest