Attachment 921269 Details for Bug 1123557 – program to log signals

program to log signals

sigtest.c (text/plain), 1.07 KB, created by Zbigniew Jędrzejewski-Szmek on 2014-07-27 02:01:29 UTC

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Creator: Zbigniew Jędrzejewski-Szmek

Created: 2014-07-27 02:01:29 UTC

Size: 1.07 KB

patch

obsolete

>#include <unistd.h>
>#include <signal.h>
>#include <stdio.h>
>#include <stdbool.h>
>#include <assert.h>
>#include <sys/types.h>
>#include <sys/wait.h>
>
>bool done = false;
>
>void handler(int sig, siginfo_t *si, void *dummy) {
>        fprintf(stderr, "%d got signal %i from %d\n", getpid(), sig, si->si_pid);
>        done = true;
>}
>
>int main(int argc, char **argv) {
>        struct sigaction sa = {
>                .sa_sigaction = handler,
>                .sa_flags = SA_SIGINFO | SA_RESTART,
>        };
>        int pid;
>
>        assert(sigaction(SIGTERM, &sa, NULL) == 0);
>        assert(sigaction(SIGINT, &sa, NULL) == 0);
>
>        pid = fork();
>        assert(pid >= 0);
>
>        fprintf(stderr, "%d running\n", getpid());
>
>        while (!done)
>                sleep(5);
>
>        if (pid > 0) {
>                fprintf(stderr, "killing child\n");
>                kill(pid, SIGTERM);
>
>                assert(waitid(P_PID, pid, NULL, WEXITED) == 0);
>                fprintf(stderr, "child is dead\n");
>        }
>
>        sleep(5);
>
>        fprintf(stderr, "%i exiting\n", getpid());
>        return 0;
>}

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Attachments on bug 1123557: 921269 | 921270