C++ (Cpp) preempt_notifier_register примеры использования

Пример #1

Файл: threadctxhooks-r0drv-linux.c Проект: miguelinux/vbox

RTDECL(int) RTThreadCtxHookEnable(RTTHREADCTXHOOK hCtxHook)
{
    /*
     * Validate input.
     */
    PRTTHREADCTXHOOKINT pThis = hCtxHook;
    AssertPtr(pThis);
    AssertMsgReturn(pThis->u32Magic == RTTHREADCTXHOOKINT_MAGIC, ("pThis->u32Magic=%RX32 pThis=%p\n", pThis->u32Magic, pThis),
                    VERR_INVALID_HANDLE);
    Assert(pThis->hOwner == RTThreadNativeSelf());
    Assert(!pThis->fEnabled);
    if (!pThis->fEnabled)
    {
        IPRT_LINUX_SAVE_EFL_AC();
        Assert(pThis->PreemptOps.sched_out == rtThreadCtxHooksLnxSchedOut);
        Assert(pThis->PreemptOps.sched_in == rtThreadCtxHooksLnxSchedIn);

        /*
         * Register the callback.
         */
        preempt_disable();
        pThis->fEnabled = true;
        preempt_notifier_register(&pThis->LnxPreemptNotifier);
        preempt_enable();

        IPRT_LINUX_RESTORE_EFL_AC();
    }

    return VINF_SUCCESS;
}

Пример #2

Файл: threadctxhooks-r0drv-linux.c Проект: MadHacker217/VirtualBox-OSE

RTDECL(int) RTThreadCtxHooksRegister(RTTHREADCTX hThreadCtx, PFNRTTHREADCTXHOOK pfnThreadCtxHook, void *pvUser)
{
    /*
     * Validate input.
     */
    PRTTHREADCTXINT pThis = hThreadCtx;
    if (pThis == NIL_RTTHREADCTX)
        return VERR_INVALID_HANDLE;
    AssertPtr(pThis);
    AssertMsgReturn(pThis->u32Magic == RTTHREADCTXINT_MAGIC, ("pThis->u32Magic=%RX32 pThis=%p\n", pThis->u32Magic, pThis),
                    VERR_INVALID_HANDLE);
    Assert(pThis->hOwner == RTThreadNativeSelf());
    Assert(!pThis->hPreemptOps.sched_out);
    Assert(!pThis->hPreemptOps.sched_in);

    /*
     * Register the callback.
     */
    pThis->hPreemptOps.sched_out = rtThreadCtxHooksLnxSchedOut;
    pThis->hPreemptOps.sched_in  = rtThreadCtxHooksLnxSchedIn;
    pThis->pvUser                = pvUser;
    pThis->pfnThreadCtxHook      = pfnThreadCtxHook;
    pThis->fRegistered           = true;
    preempt_notifier_register(&pThis->hPreemptNotifier);

    return VINF_SUCCESS;
}

Пример #3

Файл: preempt_notifer_unregister.c Проект: fjrti/snippets

//Ä£¿éŒÓÔغ¯Êý¶šÒå
static int __init preempt_notifer_unregister_init(void)
{	
	int result;
	printk("<0>into preempt_notifer_unregister_init.\n");				
	result=kernel_thread(my_function,NULL,CLONE_KERNEL); //ŽŽœšÐÂœø³Ì
	ops.sched_in=sched_in; //³õÊŒ»¯œø³ÌÇÀÕŒ²Ù×÷±äÁ¿
       ops.sched_out=sched_out;
	preempt_notifier_init(&notifier,&ops);  //³õÊŒ»¯œø³ÌÇÀՌ͚֪Æ÷
	preempt_notifier_register(&notifier); //×¢²áœø³ÌÇÀՌ͚֪Æ÷
	preempt_notifier_unregister(&notifier); //ÊŸÀý1£¬×¢Ïúœø³ÌÇÀՌ͚֪Æ÷
	printk("<0>the result of the kernel_thread is :%d\n",result); //ÏÔÊŸº¯Êýkernel_thread()º¯ÊýµÄ·µ»Øœá¹û
	printk("<0>the current pid is:%d\n",current->pid); //ÏÔÊŸµ±Ç°œø³ÌPIDÖµ
	printk("<0>out preempt_notifer_unregister_init.\n");
	return 0;
}