git.m6w6.name Git - m6w6/libmemcached/blob - libtest/server.h

   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 #pragma once
  23
  24 #include <cassert>
  25 #include <cstdio>
  26 #include <cstring>
  27 #include <netdb.h>
  28 #include <netinet/in.h>
  29 #include <string>
  30 #include <unistd.h>
  31 #include <vector>
  32
  33 namespace libtest {
  34
  35 struct Server {
  36 private:
  37   bool _is_socket;
  38   std::string _socket;
  39   std::string _sasl;
  40   std::string _pid_file;
  41   std::string _log_file;
  42   std::string _base_command; // executable command which include libtool, valgrind, gdb, etc
  43   std::string _running; // Current string being used for system()
  44   pid_t _pid;
  45
  46 protected:
  47   in_port_t _port;
  48   std::string _hostname;
  49   std::string _extra_args;
  50
  51 public:
  52   Server(const std::string& hostname, const in_port_t port_arg, const bool is_socket_arg= false);
  53
  54   virtual ~Server();
  55
  56   virtual const char *name()= 0;
  57   virtual const char *executable()= 0;
  58   virtual const char *port_option()= 0;
  59   virtual const char *pid_file_option()= 0;
  60   virtual const char *daemon_file_option()= 0;
  61   virtual const char *log_file_option()= 0;
  62   virtual bool is_libtool()= 0;
  63
  64   virtual bool broken_socket_cleanup()
  65   {
  66     return false;
  67   }
  68
  69   virtual const char *socket_file_option() const
  70   {
  71     return NULL;
  72   }
  73
  74   virtual bool broken_pid_file()
  75   {
  76     return false;
  77   }
  78
  79   const std::string& pid_file() const
  80   {
  81     return _pid_file;
  82   }
  83
  84   const std::string& base_command() const
  85   {
  86     return _base_command;
  87   }
  88
  89   const std::string& log_file() const
  90   {
  91     return _log_file;
  92   }
  93
  94   const std::string& hostname() const
  95   {
  96     return _hostname;
  97   }
  98
  99   const std::string& socket() const
 100   {
 101     return _socket;
 102   }
 103
 104   bool has_socket() const
 105   {
 106     return _is_socket;
 107   }
 108
 109   bool cycle();
 110
 111   virtual bool ping()= 0;
 112
 113   virtual pid_t get_pid(bool error_is_ok= false)= 0;
 114
 115   virtual bool build(int argc, const char *argv[])= 0;
 116
 117   in_port_t port() const
 118   {
 119     return _port;
 120   }
 121
 122   bool has_port() const
 123   {
 124     return (_port != 0);
 125   }
 126
 127   // Reset a server if another process has killed the server
 128   void reset()
 129   {
 130     _pid= -1;
 131     _pid_file.clear();
 132     _log_file.clear();
 133   }
 134
 135   void set_extra_args(const std::string &arg);
 136
 137   bool args(std::string& options);
 138
 139   pid_t pid();
 140
 141   pid_t pid() const
 142   {
 143     return _pid;
 144   }
 145
 146   bool has_pid() const
 147   {
 148     return (_pid > 1);
 149   }
 150
 151   bool wait_for_pidfile() const;
 152
 153   bool check_pid(pid_t pid_arg) const
 154   {
 155     return (pid_arg > 1);
 156   }
 157
 158   bool is_socket() const
 159   {
 160     return _hostname[0] == '/';
 161   }
 162
 163   const std::string running() const
 164   {
 165     return _running;
 166   }
 167
 168   std::string log_and_pid();
 169
 170   bool kill(pid_t pid_arg);
 171   bool start();
 172   bool command(std::string& command_arg);
 173
 174 protected:
 175   void nap();
 176   bool set_pid_file();
 177
 178 private:
 179   bool is_helgrind() const;
 180   bool is_valgrind() const;
 181   bool is_debug() const;
 182   bool set_log_file();
 183   bool set_socket_file();
 184   void rebuild_base_command();
 185   void reset_pid();
 186 };
 187
 188 std::ostream& operator<<(std::ostream& output, const libtest::Server &arg);
 189
 190 } // namespace libtest
 191
 192