4. 其他的处理比较常规:启动、停止(这里是reset)。 1. 退出以及等待功能,我记得最初的开篇中,作者觉得线程相比task应该有几个特殊的特性。而这个退出返回以及等待就是其中的两点。 2. FreeRTOS中的delay,在这里的对等功能叫做sleep。这里的us延时,从解释看,大概率就是tick的转换。因此,这个小延时或者精准的分辨率...
pxPreviousWakeTime:此参数命名时假定 vTaskDelayUntil()用于实现某个任务以固定频率周期性执行。这种情况下 pxPreviousWakeTime保存了任务上一次离开阻塞态(被唤醒)的时刻。这个时刻被用作一个参考点来计算该任务下一次离开阻塞态的时刻。 xTimeIncrement:此参数命名时同样是假定 vTaskDelayUntil()用于实现某个任 务以...
* * A function that causes executing task to sleep for a number ofmilliseconds. * This function is OPTIONAL. It is only used by the TouchGFX in the case of * a specific frame refresh strategy (REFRESHSTRATEGY_OPTIM_SINGLE_BUFFER_TFT_CTRL). * Due to backwards compatibility, in order...
-v --verbose output values on stdout forstatistics format: n:c:v n=tasknum c=count v=value inus --dbg_cyclictest print info useful fordebugging cyclictest -x --posix_timers use POSIX timers instead of clock_nanosleep. 实测命令: cyclictest -t 5 -p 95 -i 1000 -l 1000 -m -D 1m ...
patch treats soft interrupt handlers in kernel thread context, which is represented by a task_...
The runnable task M prevents L from executing because of its higher priority. This leads to the priority inversion because H has to wait until M has finished (6) so that L can release the resource (7). 低优先级任务L开始运行 任务L获得互斥资源 高优先级任务H开始执行,并试图抢占L 第三个任...
/* wait until next shot */ clock_nanosleep(CLOCK_MONOTONIC, TIMER_ABSTIME, &t, NULL); /* do the stuff */ /* calculate next shot */ t.tv_nsec += interval; while (t.tv_nsec >= NSEC_PER_SEC) { t.tv_nsec -= NSEC_PER_SEC; ...
The X-ray diffraction intensities of the sputtered In grains measured before and after nitridation show that In grains were seemingly transformed directly to InN, but further microstructural analysis revealed that the transformation of In to InN involved In2O3 as an intermediate phase. Our result ...
This patch *ensures* only the top waiter or higher priority task can take the lock. How? 1) we don't dequeue the top waiter when unlock, if the top waiter is changed, the old top waiter will fail and go to sleep again. 2) when requiring lock, it will get the lock when the ...
* @param task 需要执行的任务 */ public void execute(Runnable task) { /** * 创建线程执行任务. * 懒惰初始化; * - 如果workset的数量小于coresize 那就创建,执行任务 * - 否则:任务进任务队列 * 这里要加锁:因为work是公用的, */ synchronized (works) { ...