C++ (Cpp) RT_ASSERT_PREEMPT_CPUID_DISABLE Examples

Example #1

File: threadpreempt-r0drv-darwin.cpp Project: ryenus/vbox

RTDECL(void) RTThreadPreemptDisable(PRTTHREADPREEMPTSTATE pState)
{
    AssertPtr(pState);
    Assert(pState->u32Reserved == 0);
    pState->u32Reserved = 42;

    /*
     * Disable to prevent preemption while we grab the per-cpu spin lock.
     * Note! Only take the lock on the first call or we end up spinning for ever.
     */
    RTCCUINTREG fSavedFlags = ASMIntDisableFlags();
    RTCPUID     idCpu       = RTMpCpuId();
    if (RT_UNLIKELY(idCpu < RT_ELEMENTS(g_aPreemptHacks)))
    {
        Assert(g_aPreemptHacks[idCpu].cRecursion < UINT32_MAX / 2);
        if (++g_aPreemptHacks[idCpu].cRecursion == 1)
        {
            lck_spin_t *pSpinLock = g_aPreemptHacks[idCpu].pSpinLock;
            if (pSpinLock)
                lck_spin_lock(pSpinLock);
            else
                AssertFailed();
        }
    }
    ASMSetFlags(fSavedFlags);
    Assert(!RTThreadPreemptIsEnabled(NIL_RTTHREAD));
    RT_ASSERT_PREEMPT_CPUID_DISABLE(pState);
}

Example #2

File: thread-r0drv-haiku.c Project: miguelinux/vbox

RTDECL(void) RTThreadPreemptDisable(PRTTHREADPREEMPTSTATE pState)
{
    AssertPtr(pState);
    Assert(pState->uOldCpuState == 0);

    pState->uOldCpuState = (uint32_t)disable_interrupts();
    RT_ASSERT_PREEMPT_CPUID_DISABLE(pState);
}

Example #3

File: thread-r0drv-nt.cpp Project: stefano-garzarella/virtualbox-org-svn-vbox-trunk

RTDECL(void) RTThreadPreemptDisable(PRTTHREADPREEMPTSTATE pState)
{
    AssertPtr(pState);
    Assert(pState->uchOldIrql == 255);
    Assert(KeGetCurrentIrql() <= DISPATCH_LEVEL);

    KeRaiseIrql(DISPATCH_LEVEL, &pState->uchOldIrql);
    RT_ASSERT_PREEMPT_CPUID_DISABLE(pState);
}

Example #4

File: thread-r0drv-freebsd.c Project: mdaniel/virtualbox-org-svn-vbox-trunk

RTDECL(void) RTThreadPreemptDisable(PRTTHREADPREEMPTSTATE pState)
{
    AssertPtr(pState);
    Assert(pState->u32Reserved == 0);
    pState->u32Reserved = 42;

    critical_enter();
    RT_ASSERT_PREEMPT_CPUID_DISABLE(pState);
}

Example #5

File: thread-r0drv-haiku.c Project: LastRitter/vbox-haiku

RTDECL(void) RTThreadPreemptDisable(PRTTHREADPREEMPTSTATE pState)
{
    AssertPtr(pState);
    Assert(pState->uOldCpuState == 0);
    //dprintf("%s(%p)\n", __FUNCTION__, pState);

    pState->uOldCpuState = (uint32_t)disable_interrupts();
    //GRAB_THREAD_LOCK();
    
    RT_ASSERT_PREEMPT_CPUID_DISABLE(pState);
}

Example #6

RTDECL(void) RTThreadPreemptDisable(PRTTHREADPREEMPTSTATE pState)
{
    AssertPtr(pState);
    Assert(pState->u32Reserved == 0);

    /* No preemption on OS/2, so do our own accounting. */
    int32_t c = ASMAtomicIncS32(&g_acPreemptDisabled[ASMGetApicId()]);
    AssertMsg(c > 0 && c < 32, ("%d\n", c));
    pState->u32Reserved = c;
    RT_ASSERT_PREEMPT_CPUID_DISABLE(pState);
}

Example #7

File: thread-r0drv-linux.c Project: leopucci/VirtualMonitor

RTDECL(void) RTThreadPreemptDisable(PRTTHREADPREEMPTSTATE pState)
{
#ifdef CONFIG_PREEMPT
    AssertPtr(pState);
    Assert(pState->u32Reserved == 0);
    pState->u32Reserved = 42;
    preempt_disable();
    RT_ASSERT_PREEMPT_CPUID_DISABLE(pState);

#else /* !CONFIG_PREEMPT */
    int32_t c;
    AssertPtr(pState);
    Assert(pState->u32Reserved == 0);

    /* Do our own accounting. */
    c = ASMAtomicIncS32(&g_acPreemptDisabled[smp_processor_id()]);
    AssertMsg(c > 0 && c < 32, ("%d\n", c));
    pState->u32Reserved = c;
    RT_ASSERT_PREEMPT_CPUID_DISABLE(pState);
#endif
}