kaguya
37 lines
555 B
C
37 lines
555 B
C
#include <signal.h>
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#include <assert.h>
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#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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static volatile int alarms_fired = 0;
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static void sigalrm_handler(int signal) {
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if(signal == SIGALRM)
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alarms_fired++;
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}
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int main() {
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signal(SIGALRM, sigalrm_handler);
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alarms_fired = 0;
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unsigned int ret = alarm(10);
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assert(!ret);
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sleep(1);
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ret = alarm(1);
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assert(ret == 9);
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sleep(2);
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if(alarms_fired != 1) {
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fprintf(stderr, "alarm handler fired %u times instead of 1\n", alarms_fired);
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exit(1);
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}
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return 0;
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}
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