process.cpp revision a4d7fc6f54717c342281099fe14f5666be9b7921
/* $Id$ */
/** @file
* innotek Portable Runtime - Process, Common.
*/
/*
* Copyright (C) 2006-2007 innotek GmbH
*
* This file is part of VirtualBox Open Source Edition (OSE), as
* available from http://www.virtualbox.org. This file 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,
* in version 2 as it comes in the "COPYING" file of the VirtualBox OSE
* distribution. VirtualBox OSE is distributed in the hope that it will
* be useful, but WITHOUT ANY WARRANTY of any kind.
*
* If you received this file as part of a commercial VirtualBox
* distribution, then only the terms of your commercial VirtualBox
* license agreement apply instead of the previous paragraph.
*/
/*******************************************************************************
* Header Files *
*******************************************************************************/
#include <iprt/process.h>
#include <iprt/assert.h>
#include <iprt/err.h>
#include "internal/process.h"
#include "internal/thread.h"
#ifdef RT_OS_WINDOWS
# include <process.h>
#else
# include <unistd.h>
#endif
/**
* Get the identifier for the current process.
*
* @returns Process identifier.
*/
RTDECL(RTPROCESS) RTProcSelf(void)
{
RTPROCESS Self = g_ProcessSelf;
if (Self != NIL_RTPROCESS)
return Self;
/* lazy init. */
#ifdef _MSC_VER
Self = _getpid(); /* crappy ansi compiler */
#else
Self = getpid();
#endif
g_ProcessSelf = Self;
return Self;
}
/**
* Attempts to alter the priority of the current process.
*
* @returns iprt status code.
* @param enmPriority The new priority.
*/
RTR3DECL(int) RTProcSetPriority(RTPROCPRIORITY enmPriority)
{
if (enmPriority > RTPROCPRIORITY_INVALID && enmPriority < RTPROCPRIORITY_LAST)
return rtThreadDoSetProcPriority(enmPriority);
AssertMsgFailed(("enmPriority=%d\n", enmPriority));
return VERR_INVALID_PARAMETER;
}
/**
* Gets the current priority of this process.
*
* @returns The priority (see RTPROCPRIORITY).
*/
RTR3DECL(RTPROCPRIORITY) RTProcGetPriority(void)
{
return g_enmProcessPriority;
}