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/* $Id: thread-r0drv-haiku.c $ */
/** @file
* IPRT - Threads, Ring-0 Driver, Haiku.
*/
/*
* Copyright (C) 2012-2020 Oracle Corporation
*
* 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 (GPL) 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.
*
* The contents of this file may alternatively be used under the terms
* of the Common Development and Distribution License Version 1.0
* (CDDL) only, as it comes in the "COPYING.CDDL" file of the
* VirtualBox OSE distribution, in which case the provisions of the
* CDDL are applicable instead of those of the GPL.
*
* You may elect to license modified versions of this file under the
* terms and conditions of either the GPL or the CDDL or both.
*/
/*********************************************************************************************************************************
* Header Files *
*********************************************************************************************************************************/
#include "the-haiku-kernel.h"
#include "internal/iprt.h"
#include <iprt/thread.h>
#if defined(RT_ARCH_AMD64) || defined(RT_ARCH_X86)
#include <iprt/asm-amd64-x86.h>
#endif
#include <iprt/assert.h>
#include <iprt/errcore.h>
#include <iprt/mp.h>
RTDECL(RTNATIVETHREAD) RTThreadNativeSelf(void)
{
return (RTNATIVETHREAD)find_thread(NULL);
}
RTDECL(int) RTThreadSleep(RTMSINTERVAL cMillies)
{
RT_ASSERT_PREEMPTIBLE();
snooze((bigtime_t)cMillies * 1000);
return VINF_SUCCESS;
}
RTDECL(bool) RTThreadYield(void)
{
RT_ASSERT_PREEMPTIBLE();
//FIXME
//snooze(0);
thread_yield(true);
return true; /* this is fishy */
}
RTDECL(bool) RTThreadPreemptIsEnabled(RTTHREAD hThread)
{
Assert(hThread == NIL_RTTHREAD);
//XXX: can't do this, it might actually be held by another cpu
//return !B_SPINLOCK_IS_LOCKED(&gThreadSpinlock);
return ASMIntAreEnabled(); /** @todo find a better way. */
}
RTDECL(bool) RTThreadPreemptIsPending(RTTHREAD hThread)
{
Assert(hThread == NIL_RTTHREAD);
/** @todo check if Thread::next_priority or
* cpu_ent::invoke_scheduler could do. */
return false;
}
RTDECL(bool) RTThreadPreemptIsPendingTrusty(void)
{
/* RTThreadPreemptIsPending is not reliable yet. */
return false;
}
RTDECL(bool) RTThreadPreemptIsPossible(void)
{
/* yes, kernel preemption is possible. */
return true;
}
RTDECL(void) RTThreadPreemptDisable(PRTTHREADPREEMPTSTATE pState)
{
AssertPtr(pState);
Assert(pState->uOldCpuState == 0);
pState->uOldCpuState = (uint32_t)disable_interrupts();
RT_ASSERT_PREEMPT_CPUID_DISABLE(pState);
}
RTDECL(void) RTThreadPreemptRestore(PRTTHREADPREEMPTSTATE pState)
{
AssertPtr(pState);
RT_ASSERT_PREEMPT_CPUID_RESTORE(pState);
restore_interrupts((cpu_status)pState->uOldCpuState);
pState->uOldCpuState = 0;
}
RTDECL(bool) RTThreadIsInInterrupt(RTTHREAD hThread)
{
Assert(hThread == NIL_RTTHREAD); NOREF(hThread);
/** @todo Implement RTThreadIsInInterrupt. Required for guest
* additions! */
return !ASMIntAreEnabled();
}
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