WebThe sigaction() function is more portable than signal() to register signal handlers. Makes use of struct sigaction which specifies properties of signal handler registrations, most importantly the field sa_handler int main(){ // SAMPLE HANDLER SETUP USING sigaction() struct sigaction my_sa = {}; // portable signal handling setup with sigaction() WebNow when I send kill -SIGTERM to the process, only the last sigaction isuer gets control (as I expect and want). The problem is that the sigaction( sig, NULL, &oact) gives the address of the LAST sigaction structure and thus the same sa_handler as the one currently running. NOT the one created by shlib1();

prctl(PR_SET_PDEATHSIG)竞赛条件 - IT宝库

WebThe storage occupied by sa_handler and sa_sigaction may overlap, and a conforming application shall not use both simultaneously.. If the argument act is not a null pointer, it points to a structure specifying the action to be associated with the specified signal. If the argument oact is not a null pointer, the action previously associated with the signal is … Web我有一個可以在其他Linux平台 例如CentOS，Redhat等 上運行的代碼庫，但是在我的FreeBSD . 發行版中它失敗了。 我這里有一個監視器處理程序，它每 秒執行一次相同的操作。 最初幾次是正常的，它返回 超時 ，因此monitor handler繼續運行。 但是，當它返回 不允許操 … cylindrical windmill

Linux 进程间通信（三）信号通信 - 天天好运

WebJun 15, 2010 · 1 Answer. Sorted by: -1. You need to setup your signal handler correctly in order to handle signals you want to catch. This is how I do my signal handler: static void … Web代码分析基于android-12.0.0_r28. 前期阶段. kernel/init/main.c： static int __ref kernel_init (void * unused) {// ...省略一堆代码 if (execute_command ... WebCan be NULL. If act is a NULL pointer, signal handling is unchanged. sigaction() can be used to inquire about the current handling of signal sig. If act is not NULL, the action specified … cylindrical weight calculator