#define TASK_KILLABLE (TASK_WAKEKILL | TASK_UNINTERRUPTIBLE) #define TASK_STOPPED (TASK_WAKEKILL | __TASK_STOPPED) #define TASK_TRACED (TASK_WAKEKILL | __TASK_TRACED) 换句话说,TASK_UNINTERRUPTIBLE + TASK_WAKEKILL = TASK_KILLABLE。 而TASK_WAKEKILL 用于在接收到致命信号时唤醒进程 新的睡眠状态...
注意,状态TASK_INTERRUPTIBLE和TASK_UNINTERRUPTIBLE并未修改。TASK_WAKEKILL用于在接收到致命信号时唤醒进程。 清单2 展示了状态TASK_STOPPED和TASK_TRACED的修改之处(以及TASK_KILLABLE的定义): 清单2. 内核 2.6.26 中的新状态定义 #define TASK_KILLABLE (TASK_WAKEKILL | TASK_UNINTERRUPTIBLE) #define TASK_STOPPED...
#define TASK_KILLABLE (TASK_WAKEKILL | TASK_UNINTERRUPTIBLE) #define TASK_STOPPED (TASK_WAKEKILL | __TASK_STOPPED) #define TASK_TRACED (TASK_WAKEKILL | __TASK_TRACED) #define TASK_IDLE (TASK_UNINTERRUPTIBLE | TASK_NOLOAD) 【文章福利】小编推荐自己的Linux内核技术交流群:【977878001】整理一些个...
*/#defineTASK_RUNNING0#defineTASK_INTERRUPTIBLE1#defineTASK_UNINTERRUPTIBLE2#define __TASK_STOPPED4#define __TASK_TRACED8/* in tsk->exit_state */#defineEXIT_DEAD16#defineEXIT_ZOMBIE32#defineEXIT_TRACE(EXIT_ZOMBIE|EXIT_DEAD)/* in tsk->state again */#defineTASK_DEAD64#defineTASK_WAKEKILL128/...
注意,状态TASK_INTERRUPTIBLE和TASK_UNINTERRUPTIBLE并未修改。TASK_WAKEKILL用于在接收到致命信号时唤醒进程。 清单2 展示了状态TASK_STOPPED和TASK_TRACED的修改之处(以及TASK_KILLABLE的定义): 清单2. 内核 2.6.26 中的新状态定义 #define TASK_KILLABLE (TASK_WAKEKILL | TASK_UNINTERRUPTIBLE) ...
换句话说,TASK_UNINTERRUPTIBLE+TASK_WAKEKILL=TASK_KILLABLE。 回页首 使用TASK_KILLABLE 的新内核 API 关于完成的一些信息 完成机制的适用情况是:您希望将某个任务置为睡眠状态,但随后需要在某些事件完成时唤醒它。它提供了一种简单的、无竞态条件的同步机制。例程wait_for_completion(struct completion *comp)将使...
void signal_wake_up_state(struct task_struct *t, unsigned int state){ set_tsk_thread_flag(t, TIF_SIGPENDING); /* * TASK_WAKEKILL also means wake it up in the stopped/traced/killable * case. We don't check t->state here because there is a race with it * executing another ...
__TASK_STOPPED 暂停状态,进程处于暂停执行状态,一般是接收到一些信号比如SIGSTOP,SIGTTIND等 __TASK_TRACED 由于调试程序暂停进程的执行 TASK_WAKEKILL 用于替代深度睡眠状态,区别是可以响应致命信号 2、*stack stack保存的是内核栈的地址。当创建一个task_struct结构时,这个task_struct应当被保存下来以用于维护该进程...
#define TASK_WAKING 256 #define TASK_PARKED 512 #define TASK_NOLOAD 1024 #define TASK_STATE_MAX 2048 /* Convenience macros for the sake of set_task_state */ #define TASK_KILLABLE (TASK_WAKEKILL | TASK_UNINTERRUPTIBLE) #define TASK_STOPPED (TASK_WAKEKILL | __TASK_STOPPED) ...
//设置NMI(非屏蔽中断) hrtimer_start(hrtimer, ns_to_ktime(sample_period), HRTIMER_MODE_REL_PINNED); //启动时钟中断}static enum hrtimer_restart watchdog_timer_fn(struct hrtimer *hrtimer){ ... ... watchdog_interrupt_count(); //更新hrtimer_interrupts wake_up_process(__thi...