init_waitqueue_head(&wait_queue_etx); //Create the kernel thread with name 'mythread' wait_thread = kthread_create(wait_function, NULL, "WaitThread"); if (wait_thread) { pr_info("Thread Created successfully "); wake_up_process(wait_thread); } else pr_info("Thread creation failed "...
内核提供了两个函数(定义在 kernel/sched/wait.c )用于将等待队列元素 wq_entry 添加到等待队列 wq_head 中: add_wait_queue() 和 add_wait_queue_exclusive() 。 add_wait_queue() :在等待队列头部添加普通的等待队列元素(非独占等待,清除 WQ_FLAG_EXCLUSIVE 标志)。 add_wait_queue_exclusive() :在等待...
如果waitqueue_flag取值为2,则表示内核模块将要退出,因此跳出while(1)循环并结束执行。 3.1 静态创建 statically_create_waitqueue.c #include<linux/kernel.h>#include<linux/init.h>#include<linux/module.h>#include<linux/kdev_t.h>#include<linux/fs.h>#include<linux/cdev.h>#include<linux/device.h>#...
};module_platform_driver(test_driver);MODULE_DESCRIPTION("KERNEL Common API Test");MODULE_LICENSE("GPL"); 原子、信号量、等待队列 atomic_t 定义:这儿 典型使用场景:多进程中共享资源的计数加减。例如,硬件设备往往只有一个,usr space层可能同时存在多个进程在访问该设备,则用此来保存client数。 常用API: a...
kernel: Add routine to walk a wait queue Browse files Adds a routine to safely walk a specified wait queue and invoke a custom callback function on each waiting thread. Signed-off-by: Peter Mitsis <peter.mitsis@intel.com> Loading branch information peter-mitsis authored and pull[bot]...
A thread pool enables you to use threads more efficiently by providing your application with a set of worker threads that are managed by the system. All you have to do is use the ThreadPool.QueueUserWorkItem method to queue a WaitCallback delegate for execution, and the method referenced by ...
PG_THREAD_WAIT_STATUS allows you to test the block waiting status about the backend thread and auxiliary thread of the current instance.The waiting statuses in the wait_s
Learn more about the Microsoft.Windows.EventTracing.Cpu.KernelWaitReason in the Microsoft.Windows.EventTracing.Cpu namespace.
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错误检查 0x94:KERNEL_STACK_LOCKED_AT_EXIT 错误检查 0x96:INVALID_WORK_QUEUE_ITEM 错误检查 0x97:BOUND_IMAGE_UNSUPPORTED 错误检查 0x98:END_OF_NT_EVALUATION_PERIOD 错误检查 0x99:INVALID_REGION_OR_SEGMENT 错误检查 0x9A:SYSTEM_LICENSE_VIOLATION ...