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   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/
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   7  *  Redistribution and use in source and binary forms, with or without
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  14  *      * Redistributions in binary form must reproduce the above
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  19  *      * The names of its contributors may not be used to endorse or
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  23  *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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  36
  37
  38 #include "libtest/yatlcon.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 #ifndef __INTEL_COMPILER
  55 #pragma GCC diagnostic ignored "-Wold-style-cast"
  56 #endif
  57
  58 namespace libtest {
  59
  60 class BlobslapWorker : public Server
  61 {
  62 private:
  63 public:
  64   BlobslapWorker(in_port_t port_arg) :
  65     Server("localhost", port_arg, "benchmark/blobslap_worker", true)
  66   {
  67     set_pid_file();
  68   }
  69
  70   pid_t get_pid(bool error_is_ok)
  71   {
  72     if (pid_file().empty())
  73     {
  74       Error << "pid_file was empty";
  75       return -1;
  76     }
  77
  78     Wait wait(pid_file(), 0);
  79
  80     if (error_is_ok and not wait.successful())
  81     {
  82       Error << "Pidfile was not found:" << pid_file();
  83       return -1;
  84     }
  85
  86     std::stringstream error_message;
  87     pid_t ret= get_pid_from_file(pid_file(), error_message);
  88
  89     if (error_is_ok and is_pid_valid(ret) == false)
  90     {
  91       Error << error_message.str();
  92     }
  93
  94     return ret;
  95   }
  96
  97   bool ping()
  98   {
  99     if (pid_file().empty())
 100     {
 101       Error << "No pid file available";
 102       return false;
 103     }
 104
 105     Wait wait(pid_file(), 0);
 106     if (not wait.successful())
 107     {
 108       Error << "Pidfile was not found:" << pid_file();
 109       return false;
 110     }
 111
 112     std::stringstream error_message;
 113     pid_t local_pid= get_pid_from_file(pid_file(), error_message);
 114     if (is_pid_valid(local_pid) == false)
 115     {
 116       Error << error_message.str();
 117       return false;
 118     }
 119
 120     // Use kill to determine is the process exist
 121     if (::kill(local_pid, 0) == 0)
 122     {
 123       return true;
 124     }
 125
 126     return false;
 127   }
 128
 129   const char *name()
 130   {
 131     return "blobslap_worker";
 132   };
 133
 134   bool has_port_option() const
 135   {
 136     return true;
 137   }
 138
 139   bool has_log_file_option() const
 140   {
 141     return true;
 142   }
 143
 144   bool is_libtool()
 145   {
 146     return true;
 147   }
 148
 149   bool build();
 150 };
 151
 152
 153 #include <sstream>
 154
 155 bool BlobslapWorker::build()
 156 {
 157   return true;
 158 }
 159
 160 Server *build_blobslap_worker(in_port_t try_port)
 161 {
 162   return new BlobslapWorker(try_port);
 163 }
 164
 165 } // namespace libtest