25 lines
418 B
C
25 lines
418 B
C
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#include <stdlib.h>
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#include <stdio.h>
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#include <signal.h>
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#include <unistd.h>
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void alarm_handler(int sig)
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{
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printf("alarm signal=%d\n", sig);
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alarm(1);
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}
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int main(int argc, char **argv)
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{
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struct sigaction act;
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act.sa_handler = alarm_handler;
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sigemptyset(&act.sa_mask);
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act.sa_flags = 0;
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sigaction(SIGALRM, &act, NULL);
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alarm(1);
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for(;;) {
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sleep(1);
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}
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return 0;
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}
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