qq_30239761的博客

timer.cstatic void do_init_timer(struct timer_list *timer,void (*func)(struct timer_list *),unsigned int flags,const char *name, struct lock_class_key *key){timer->entry.pprev = NULL;timer->function = func;timer->flags = flags | raw_smp_pr

core.cint default_wake_function(wait_queue_entry_t *curr, unsigned mode, int wake_flags,void *key){return try_to_wake_up(curr->private, mode, wake_flags, 1); // wake up a thread}EXPORT_SYMBOL(default_wake_function);wait.h/*A single wait-queue

core.cint default_wake_function(wait_queue_entry_t *curr, unsigned mode, int wake_flags,void *key){return try_to_wake_up(curr->private, mode, wake_flags, 1); // wake up a thread}EXPORT_SYMBOL(default_wake_function);wait.h/*A single wait-queue

简单导图如下:clockevents设备结构体：/**struct clock_event_device - clock event device descriptor@event_handler: Assigned by the framework to be called by the low level handler of the event source@set_next_event: set next event function using a clockso

delayed_work的工作比较简单：1：初始化：INIT_DELAYED_WORK(_work, _func)；2：启动：schedule_delayed_work(struct delayed_work *dwork,unsigned long delay)；以某TP驱动为例，示意图如下：直接上代码：1：关键结构体：/* * The externally visible workqueue. It relays the issued work items to * the

关键代码流程框图：关键结构成员关系

如下举例一个通用workqueue的应用过程：1：创建"gdt-event-queue"工作队列 core_data->event_wq = alloc_workqueue(“gdt-event-queue”, WQ_UNBOUND | WQ_HIGHPRI | WQ_CPU_INTENSIVE, 1);2：初始化workstatic void goodix_ts_resume_work(struct work_struct *work){struct goodix_ts_core *co

1：初始化第一步：分配各项数据结构及系统workqueue/**workqueue_init_early - early init for workqueue subsystemThis is the first half of two-staged workqueue subsystem initializationand invoked as soon as the bare basics - memory allocation, cpumasks andidr are up