include/Process.h

   1 /***************************************************************************
   2  *   Copyright (C) 2007 by www.databasecache.com                           *
   3  *   Contact: praba_tuty@databasecache.com                                 *
   4  *                                                                         *
   5  *   This program is free software; you can redistribute it and/or modify  *
   6  *   it under the terms of the GNU General Public License as published by  *
   7  *   the Free Software Foundation; either version 2 of the License, or     *
   8  *   (at your option) any later version.                                   *
   9  *                                                                         *
  10  *   This program is distributed in the hope that it will be useful,       *
  11  *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
  12  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
  13  *   GNU General Public License for more details.                          *
  14  *                                                                         *
  15   ***************************************************************************/
  16 #ifndef PROCESS_H
  17 #define PROCESS_H
  18
  19 #include<os.h>
  20 #include<ErrorType.h>
  21
  22 class ProcInfo
  23 {
  24     public:
  25
  26     pid_t pid_;
  27
  28     int numThreads_;
  29
  30 };
  31
  32 class ThreadInfo
  33 {
  34     public:
  35
  36     pid_t pid_;
  37
  38     pthread_t thrid_;
  39
  40     void *want_;  //single mutex which we are waiting for.
  41
  42     void *has_;   //list of mutexes held
  43
  44 };
  45 class Database;
  46
  47 class ProcessManager
  48 {
  49     public:
  50     Database *systemDatabase;
  51     ProcInfo *procInfo;
  52     ThreadInfo *thrInfo;
  53     ProcessManager(Database *sysdb) { systemDatabase = sysdb; procInfo = NULL; thrInfo = NULL; }
  54     DbRetVal registerThread();
  55     DbRetVal deregisterThread();
  56 };
  57
  58 #endif