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

   1 /*  vim:expandtab:shiftwidth=2:tabstop=2:smarttab:
   2  *
   3  *  libtest
   4  *
   5  *  Copyright (C) 2011 Data Differential, http://datadifferential.com/
   6  *
   7  *  This library is free software; you can redistribute it and/or
   8  *  modify it under the terms of the GNU Lesser General Public
   9  *  License as published by the Free Software Foundation; either
  10  *  version 3 of the License, or (at your option) any later version.
  11  *
  12  *  This library is distributed in the hope that it will be useful,
  13  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15  *  Lesser General Public License for more details.
  16  *
  17  *  You should have received a copy of the GNU Lesser General Public
  18  *  License along with this library; if not, write to the Free Software
  19  *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
  20  */
  21
  22
  23 #include <libtest/common.h>
  24
  25 #include <libtest/blobslap_worker.h>
  26
  27 #include <cassert>
  28 #include <cerrno>
  29 #include <cstdio>
  30 #include <cstdlib>
  31 #include <cstring>
  32 #include <iostream>
  33 #include <signal.h>
  34 #include <sys/types.h>
  35 #include <sys/wait.h>
  36 #include <unistd.h>
  37
  38 #include <libgearman/gearman.h>
  39
  40 #ifndef __INTEL_COMPILER
  41 #pragma GCC diagnostic ignored "-Wold-style-cast"
  42 #endif
  43
  44 namespace libtest {
  45
  46 class BlobslapWorker : public Server
  47 {
  48 private:
  49 public:
  50   BlobslapWorker(in_port_t port_arg) :
  51     Server("localhost", port_arg)
  52   {
  53     set_pid_file();
  54   }
  55
  56   pid_t get_pid(bool error_is_ok)
  57   {
  58     if (pid_file().empty())
  59     {
  60       Error << "pid_file was empty";
  61       return -1;
  62     }
  63
  64     Wait wait(pid_file(), 0);
  65
  66     if (error_is_ok and not wait.successful())
  67     {
  68       Error << "Pidfile was not found:" << pid_file();
  69       return -1;
  70     }
  71
  72     std::stringstream error_message;
  73     pid_t ret= get_pid_from_file(pid_file(), error_message);
  74
  75     if (error_is_ok and is_pid_valid(ret) == false)
  76     {
  77       Error << error_message.str();
  78     }
  79
  80     return ret;
  81   }
  82
  83   bool ping()
  84   {
  85     if (pid_file().empty())
  86     {
  87       Error << "No pid file available";
  88       return false;
  89     }
  90
  91     Wait wait(pid_file(), 0);
  92     if (not wait.successful())
  93     {
  94       Error << "Pidfile was not found:" << pid_file();
  95       return false;
  96     }
  97
  98     std::stringstream error_message;
  99     pid_t local_pid= get_pid_from_file(pid_file(), error_message);
 100     if (is_pid_valid(local_pid) == false)
 101     {
 102       Error << error_message.str();
 103       return false;
 104     }
 105
 106     // Use kill to determine is the process exist
 107     if (::kill(local_pid, 0) == 0)
 108     {
 109       return true;
 110     }
 111
 112     return false;
 113   }
 114
 115   const char *name()
 116   {
 117     return "blobslap_worker";
 118   };
 119
 120   const char *executable()
 121   {
 122     return GEARMAND_BLOBSLAP_WORKER;
 123   }
 124
 125   const char *pid_file_option()
 126   {
 127     return "--pid-file=";
 128   }
 129
 130   const char *daemon_file_option()
 131   {
 132     return "--daemon";
 133   }
 134
 135   const char *log_file_option()
 136   {
 137     return "--log-file=";
 138   }
 139
 140   const char *port_option()
 141   {
 142     return "--port=";
 143   }
 144
 145   bool is_libtool()
 146   {
 147     return true;
 148   }
 149
 150   bool build(int argc, const char *argv[]);
 151 };
 152
 153
 154 #include <sstream>
 155
 156 bool BlobslapWorker::build(int argc, const char *argv[])
 157 {
 158   std::stringstream arg_buffer;
 159
 160   for (int x= 1 ; x < argc ; x++)
 161   {
 162     arg_buffer << " " << argv[x] << " ";
 163   }
 164
 165   set_extra_args(arg_buffer.str());
 166
 167   return true;
 168 }
 169
 170 Server *build_blobslap_worker(in_port_t try_port)
 171 {
 172   return new BlobslapWorker(try_port);
 173 }
 174
 175 } // namespace libtest