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 ... WebApr 10, 2024 · Instead of calling printf() from within your signal handler (bad idea) you could implement a FIFO of messages to be written and check that (calling printf() on non-empty) from your main event loop. (Basically any case where you're going to handle signals in a non-terminating fashion entails implementing one or more event loops to handle the …
GNU C Library (libc) Programming Guide - Sigaction Function …
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() WebApr 20, 2024 · Open a socket and wait for connections. For every accepted connection, read characters until a newline, echo them back and close the connection. When receiving a signal, finish the current request, clean up and exit. The full source code for the code examples is available at GitHub. All you need for a client is telnet. how to say 200 in spanish
sigaction - The Open Group
WebThe old and new system calls are as follows: Linux 2.0 and earlier Linux 2.2 and later sigaction(2) rt_sigaction(2) sigpending(2) rt_sigpending(2) sigprocmask(2) rt_sigprocmask(2) sigreturn(2) rt_sigreturn(2) sigsuspend(2) rt_sigsuspend(2) sigtimedwait(2) rt_sigtimedwait(2) Interruption of system calls and library functions by … WebJan 27, 2024 · Signal Handling and What Bash Does to It. Jan 27, 2024. If you are looking for a gentle introduction to signals on linux or a tutorial on using trap to handle signals in bash script, this article is not for you. This article signal handling in linux serves as a good introduction. Instead, I will recount my encounter with a rare bug when testing signal … WebApr 9, 2024 · 我们可以通过sigaction函数或者signal指定某种特定信号,在程序执行过程中,通过发送信号,达到改变程序运行状态的目的,比如让程序停止等。sigaction函数执行信号处理程序时,会把当前信号加入到进程的信号屏蔽字中,从而防止在进行信号处理期间信号 … how to say 200 in russian