10 #include <signal.h>
73     /* set the signal handler */  in signal_install()
84     /* set signal mask */  in signal_mask()
99         printf("get an unexpected signal <%d>, exit\n", sig);  in thread_suspend_signal_handler()
111     TRACE("signal: SIGSUSPEND suspend <%s>\n", thread_from->rtthread->name);  in thread_suspend_signal_handler()
129     TRACE("signal: SIGSUSPEND resume  <%s>\n", thread_from->rtthread->name);  in thread_suspend_signal_handler()
147     TRACE("signal: SIGRESUME resume  <%s>\n", thread_to->rtthread->name);  in thread_resume_signal_handler()
157     /* set signal mask, mask the timer! */  in thread_run()
251     /*TODO: It may need to unmask the signal */  in rt_hw_interrupt_disable()
363     /*TODO: It may need to unmask the signal */  in rt_hw_interrupt_enable()
447     /* install signal handler of system tick */  in mainthread_scheduler()
449     /* install signal handler used to suspend/resume threads */  in mainthread_scheduler()
475         /* signal mask sigalrm  屏蔽SIGALRM信号 */  in mainthread_scheduler()
540         TRACE("pid <%x> signal: SIGALRM enter!\n", (unsigned int)pid);  in mthread_signal_tick()
542         TRACE("pid <%x> signal: SIGALRM leave!\n", (unsigned int)pid);  in mthread_signal_tick()
546         TRACE("got an unexpected signal <%d>\n", sig);  in mthread_signal_tick()