CASA/CASA-auth-token/non-java/utilities/IpcLibs/linux/server/serverthread.cpp

/***********************************************************************
 * 
 *  Copyright (C) 2006 Novell, Inc. All Rights Reserved.
 *
 *  This library is free software; you can redistribute it and/or
 *  modify it under the terms of the GNU Lesser General Public
 *  License as published by the Free Software Foundation; version 2.1
 *  of the License.
 *
 *  This library is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 *  Library Lesser General Public License for more details.
 *
 *  You should have received a copy of the GNU Lesser General Public
 *  License along with this library; if not, Novell, Inc.
 * 
 *  To contact Novell about this file by physical or electronic mail, 
 *  you may find current contact information at www.novell.com.
 * 
 *  Author: Juan Carlos Luciani <jluciani@novell.com>
 *
 ***********************************************************************/


//===[ Include files ]=====================================================

#include "ipcint.h"
#include "serverthread.h"
#include <assert.h>     // Ensure that NDEBUG is defined for release builds!

//===[ External data ]=====================================================

//===[ External prototypes ]===============================================

//===[ Manifest constants ]================================================

#define SERVER_THREAD_SIGNATURE  0x54525653 // SVRT

//===[ Type definitions ]==================================================

//===[ Function prototypes ]===============================================

//===[ Global variables ]==================================================

//===[ Type definitions ]==================================================

//===[ Function prototypes ]===============================================

//===[ Global variables ]==================================================

//
// Object Counters
//
unsigned long  numServerThreadObjects = 0;


//++=======================================================================
ServerThread::ServerThread(void) :

   m_signature (SERVER_THREAD_SIGNATURE)
//
//  Arguments: 
//
//  Returns:   
//
//  Abstract:  
//
//  Notes:
//
// L2
//=======================================================================--
{
   DbgTrace(1, "ServerThread::ServerThread- Start, Obj = %08X\n", this);

   // Initialize the condition
   if (pthread_cond_init(&m_condition, NULL) != 0)
   {
      DbgTrace(0, "ServerThread::ServerThread- Condition initialization failed\n", 0);

      // Throw exception
      throw bad_alloc();
   }

   // Increment the object count
   InterlockedIncrement(&numServerThreadObjects);

   DbgTrace(1, "ServerThread::ServerThread- End\n", 0);

}  /*-- ServerThread::ServerThread() --*/


//++=======================================================================
ServerThread::~ServerThread(void)
//
//  Arguments: 
//
//  Returns:   
//
//  Abstract:  
//
//  Notes:
//
// L2
//=======================================================================--
{
   DbgTrace(1, "ServerThread::~ServerThread- Start, Obj = %08X\n", this);

   // Cleanup resources allocated for the object
   pthread_cond_destroy(&m_condition);

   // Decrement the object count
   InterlockedDecrement(&numServerThreadObjects);

   DbgTrace(1, "ServerThread::~ServerThread- End\n", 0);

}  /*-- ServerThread::~ServerThread() --*/


//++=======================================================================
void
ServerThread::awaken(void)
//
//  Arguments: 
//
//  Returns:   
//
//  Abstract:  
//
//  Notes:
//
// L2
//=======================================================================--
{
   DbgTrace(1, "ServerThread::awaken- Start, Obj = %08X\n", this);

#if DEBUG
   assert(m_signature == SERVER_THREAD_SIGNATURE);
#endif

   // Signal ourselves to wake up
   pthread_cond_signal(&m_condition);

   DbgTrace(1, "ServerThread::awaken- End\n", 0);

}  /*-- ServerThread::awaken() --*/


//++=======================================================================
void
ServerThread::suspend(
   pthread_mutex_t *pMutex)
//
//  Arguments: 
//
//  Returns:   
//
//  Abstract:  
//
//  Notes:
//
// L2
//=======================================================================--
{
   DbgTrace(1, "ServerThread::suspend- Start, Obj = %08X\n", this);

#if DEBUG
   assert(m_signature == SERVER_THREAD_SIGNATURE);
#endif

   // Wait until signaled to awaken 
   pthread_cond_wait(&m_condition, pMutex);

   DbgTrace(1, "ServerThread::suspend- End\n", 0);

}  /*-- ServerThread::suspend() --*/


//=========================================================================
//=========================================================================