icinga2/attic/thread.cpp

95 lines
3.0 KiB
C++

/******************************************************************************
* Icinga 2 *
* Copyright (C) 2012 Icinga Development Team (http://www.icinga.org/) *
* *
* This program is free software; you can redistribute it and/or *
* modify it under the terms of the GNU General Public License *
* as published by the Free Software Foundation; either version 2 *
* of the License, or (at your option) any later version. *
* *
* This program 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 General Public License for more details. *
* *
* You should have received a copy of the GNU General Public License *
* along with this program; if not, write to the Free Software Foundation *
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA. *
******************************************************************************/
#include "i2-base.h"
using namespace icinga;
/**
* Helper function that deals with OS-specific differences in the thread
* proc's function signature.
*/
#ifdef _WIN32
static DWORD WINAPI ThreadStartProc(LPVOID param)
{
ThreadParameters *tparam = (ThreadParameters *)param;
tparam->Callback(tparam->UserParams);
delete tparam;
return 0;
}
#else /* _WIN32 */
static void *ThreadStartProc(void *param)
{
ThreadParameters *tparam = (ThreadParameters *)param;
tparam->Callback(tparam->UserParams);
delete tparam;
return NULL;
}
#endif /* _WIN32 */
/**
* Constructor for the thread class. Creates a new thread that begins
* executing immediately.
*/
Thread::Thread(ThreadProc callback, void *param)
{
ThreadParameters *tparam = new ThreadParameters();
if (tparam == NULL)
throw OutOfMemoryException("Out of memory");
tparam->Callback = callback;
tparam->UserParams = param;
#ifdef _WIN32
m_Thread = CreateThread(NULL, 0, ThreadStartProc, tparam, CREATE_SUSPENDED, NULL);
if (m_Thread == NULL)
throw Win32Exception("CreateThread failed.", GetLastError());
#else /* _WIN32 */
if (pthread_create(&m_Thread, NULL, ThreadStartProc, &tparam) < 0)
throw PosixException("pthread_create failed.", errno);
#endif /* _WIN32 */
}
/**
* Destructor for the Thread class. Cleans up the resources associated
* with the thread.
*/
Thread::~Thread(void)
{
#ifdef _WIN32
CloseHandle(m_Thread);
#else /* _WIN32 */
/* nothing to do here */
#endif
}
/**
* Waits until the thread has finished executing.
*/
void Thread::Join(void)
{
#ifdef _WIN32
WaitForSingleObject(m_Thread, INFINITE);
#else /* _WIN32 */
pthread_join(m_Thread, NULL);
#endif
}