bc06d68d84
Change-Id: Ife9cf36a81f353e0575f6802f1e56f7dd4cb0425 Fujitsu: POSTK_DEBUG_TEMP_FIX_33 Refs: #1350
65 lines
1.1 KiB
C
65 lines
1.1 KiB
C
#include <stdio.h>
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#include <signal.h>
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#include <unistd.h>
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static int catch_cnt;
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void sig_handler(int signum)
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{
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switch (signum) {
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case SIGUSR1:
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puts("suspender caught SIGUSR1");
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catch_cnt++;
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break;
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default:
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printf("suspender caught unexpected signal %d\n", signum);
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}
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fflush(stdout);
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}
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int main(void)
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{
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sigset_t sigset;
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struct sigaction sact;
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pid_t pid;
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int ret = 0;
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catch_cnt = 0;
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if (fork() == 0) {
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/* child (signal sender) */
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sleep(3);
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printf("child is sending SIGUSR1 (should be caught)\n");
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kill(getppid(), SIGUSR1);
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return 0;
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}
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/* parent (signal catcher) */
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sigemptyset(&sact.sa_mask);
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sact.sa_flags = 0;
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sact.sa_handler = sig_handler;
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if (sigaction(SIGUSR1, &sact, NULL) != 0) {
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perror("sigaction() error");
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ret = -1;
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goto out;
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}
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sigfillset(&sigset);
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sigdelset(&sigset, SIGUSR1);
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printf("parent is waiting SIGUSR1\n");
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if (sigsuspend(&sigset) == -1) {
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printf("sigsuspend return -1 as expected\n");
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}
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if (catch_cnt == 1) {
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printf("[OK] caught SIGUSR1\n");
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}
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else {
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printf("[NG] SIGUSR1 count:%d\n", catch_cnt);
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ret = -1;
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goto out;
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}
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out:
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return ret;
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}
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