Graham MacDonald
46 lines
1006 B
C
46 lines
1006 B
C
#include <signal.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include <errno.h>
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#include "test_helpers.h"
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void handler1(int sig) {
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ERROR_IF(handler, sig, != SIGUSR1);
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puts("Signal handler1 called!");
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}
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void handler2(int sig) {
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ERROR_IF(handler, sig, != SIGUSR1);
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puts("Signal handler2 called!");
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}
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int main(void) {
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struct sigaction sa1 = { .sa_handler = handler1 };
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struct sigaction sa2 = { .sa_handler = handler2 };
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struct sigaction saold = {0};
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sigemptyset(&sa1.sa_mask);
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sigemptyset(&sa2.sa_mask);
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int rcode = sigaction(SIGUSR1, &sa1, NULL);
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ERROR_IF(signal, rcode, != 0);
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puts("Raising...");
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int raise_status = raise(SIGUSR1);
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ERROR_IF(raise, raise_status, < 0);
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rcode = sigaction(SIGUSR1, &sa2, &saold);
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ERROR_IF(signal, rcode, != 0);
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ERROR_IF(signal, saold.sa_handler, != sa1.sa_handler);
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puts("Raising...");
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raise_status = raise(SIGUSR1);
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ERROR_IF(raise, raise_status, < 0);
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puts("Raised.");
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}
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