38 lines
633 B
C
38 lines
633 B
C
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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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#include <sys/wait.h>
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void action_sauvegarde(int signum);
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int b;
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int main(int argc, char *argv[]) {
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signal(SIGUSR2, &action_sauvegarde);
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/* charge des données */
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/* fait un calcul */
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b = 1;
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printf("Je fais un calcul\n");
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sleep (10);
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b = 0;
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kill (getppid(), SIGUSR2);
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pause();
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return EXIT_SUCCESS;
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}
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void action_sauvegarde(int signum) {
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/* sauvegarde */
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if (b==1) {
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printf("Je sauvegarde donnée corrompue\n");
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sleep(2);
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} else {
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printf("Je sauvegarde donnée ok\n");
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sleep(2);
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}
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kill(getppid(), SIGUSR1);
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pause();
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}
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