首页 > 代码库 > 多线程异步管理——信号
多线程异步管理——信号
#include <stdio.h>#include <pthread.h>#include <stdlib.h>#include <unistd.h>#include <signal.h>void *sigone_program(void *arg);void *sigtwo_program(void *arg);void report(int);int main(int argc,char *argv[]){ int i; void *status; pthread_t thread_one,thread_two; if(pthread_create(&thread_one,NULL,sigone_program,NULL)!=0) { fprintf(stderr,"pthread_create failure\n"); exit(EXIT_FAILURE); } if(pthread_create(&thread_two,NULL,sigtwo_program,NULL)!=0) { fprintf(stderr,"pthread_create failure\n"); exit(EXIT_FAILURE); } sleep(1); printf("this is parent, send SIGUSR1, SIGUSR2 to thread %u\n",thread_one); if(pthread_kill(thread_one,SIGUSR1)!=0) { perror("pthread_kill"); exit(EXIT_FAILURE); } if(pthread_kill(thread_one,SIGUSR2)!=0) { perror("pthread_kill"); exit(EXIT_FAILURE); } printf("this is parent, send SIGUSR1, SIGUSR2 to thread %u\n",thread_two); if(pthread_kill(thread_two,SIGUSR1)!=0) { perror("pthread_kill"); exit(EXIT_FAILURE); } if(pthread_kill(thread_two,SIGUSR2)!=0) { perror("pthread_kill"); exit(EXIT_FAILURE); } sleep(1); if(pthread_kill(thread_one,SIGKILL)!=0) { perror("pthread_kill"); exit(EXIT_FAILURE); } if(pthread_kill(thread_two,SIGKILL)!=0) { perror("pthread_kill"); exit(EXIT_FAILURE); } pthread_join(thread_two,NULL); pthread_join(thread_one,NULL); return 0;}void *sigone_program(void *arg){ int i; __sigset_t set; signal(SIGUSR1,report); sigfillset(&set); sigdelset(&set,SIGUSR2); pthread_sigmask(SIG_SETMASK,&set,NULL); for(i=0;i<5;i++) { printf("this is set mask %u thread\n",pthread_self()); pause(); }}void report(int sig){ printf("\nin signal, the sig=%d\t, the thread id=%u\n",sig,pthread_self());}void *sigtwo_program(void *arg){ int i; signal(SIGUSR2,report); for(i=0;i<5;i++) { printf("this is no set mask %u thread\n",pthread_self()); pause(); }}
声明：以上内容来自用户投稿及互联网公开渠道收集整理发布，本网站不拥有所有权，未作人工编辑处理，也不承担相关法律责任，若内容有误或涉及侵权可进行投诉： 投诉/举报 工作人员会在5个工作日内联系你，一经查实，本站将立刻删除涉嫌侵权内容。