p8-9.c

SUN Solaris8平台下进程间通信

#include <signal.h>
#include <stddef.h>
void catch_stop();
void install_handler(void)
{
    struct sigaction setup_action;
    sigset_t block_mask;
    sigemptyset(&block_mask);
    /* 句柄运行期间，阻塞终端生成的其它信号 */
    sigaddset(&block_mask, SIGINT);
    sigaddset(&block_mask, SIGQUIT);
    setup_action.sa_handler = catch_stop;
    setup_action.sa_mask = block_mask;
    setup_action.sa_flags = 0;
    sigaction(SIGTSTP, &setup_action, NULL);
}