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Exercice prog-sys TD4
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#include <stdlib.h> | |
#include <stdio.h> | |
#include <signal.h> | |
#include <unistd.h> | |
#include <sys/types.h> | |
#include <sys/wait.h> | |
#include <string.h> | |
// pour tuer le processus faire killall -9 <nom du process> | |
struct sigaction father_sig, son_sig, old; | |
int receive = 0; | |
pid_t pid; | |
void father(int sig) { | |
printf("reception du signal : %d : %s\n", sig, strsignal(sig)); | |
//receive = 1; | |
kill(pid, SIGUSR1); | |
} | |
void son(int sig) { | |
receive = 1; | |
} | |
int main(int argc, char const *argv[]) { | |
father_sig.sa_flags = 0; | |
sigemptyset(&father_sig.sa_mask); | |
father_sig.sa_handler = son; | |
son_sig.sa_flags = 0; | |
sigemptyset(&son_sig.sa_mask); | |
son_sig.sa_handler = father; | |
for ( int i = 1; i < NSIG; i++ ) { | |
sigaction(i, &son_sig, &old); | |
} | |
sigaction(SIGUSR1, &father_sig, &old); | |
pid = fork(); | |
pid_t ppid = getppid(); | |
if ( pid == 0 ) { // fils | |
for ( int i = 0; i < atoi(argv[1]); i++) { | |
for ( int j = 2; argv[j] != '\0'; j++ ) { | |
receive = 0; | |
printf("Envoi du signal : %d\n", atoi(argv[j])); | |
kill(ppid, atoi(argv[j])); | |
while( ! receive ); | |
} | |
} | |
kill(ppid, SIGTERM); | |
exit(EXIT_SUCCESS); | |
} | |
while(1); | |
//wait(NULL); | |
//pause(); | |
return EXIT_SUCCESS; | |
} |
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#include <stdlib.h> | |
#include <stdio.h> | |
#include <signal.h> | |
#include <unistd.h> | |
#include <sys/types.h> | |
#include <sys/wait.h> | |
#include <string.h> | |
// pour tuer le processus faire killall -9 <nom du process> | |
struct sigaction father_sig, son_sig, old; | |
int receive = 0; | |
pid_t pid; | |
void father(int sig) { | |
if ( sig == SIGTERM ) { | |
printf("Reception du siganl SIGTERM, arrêt\n"); | |
exit(EXIT_SUCCESS); | |
} | |
printf("reception du signal : %d : %s\n", sig, strsignal(sig)); | |
//receive = 1; | |
kill(pid, SIGUSR1); | |
} | |
void son(int sig) { | |
receive = 1; | |
} | |
int main(int argc, char const *argv[]) { | |
if ( argc < 2 ) { | |
fprintf(stderr, "Usage %s <nb> <sig> <sig> ...\n", argv[0]); | |
exit(EXIT_FAILURE); | |
} | |
// init de la structure father_sig | |
father_sig.sa_flags = 0; | |
sigemptyset(&father_sig.sa_mask); | |
father_sig.sa_handler = son; | |
// init de la structure son_sig | |
son_sig.sa_flags = 0; | |
sigemptyset(&son_sig.sa_mask); | |
son_sig.sa_handler = father; | |
// création des masques (question 4.4) | |
sigset_t m, empty; | |
sigemptyset(&m); | |
sigemptyset(&empty); | |
sigaddset(&m, SIGUSR1); | |
// On rattrape tout les signaux | |
for ( int i = 1; i < NSIG; i++ ) { | |
sigaction(i, &son_sig, &old); | |
} | |
// On configure le signal SIGUSR1 | |
sigaction(SIGUSR1, &father_sig, &old); | |
pid = fork(); | |
pid_t ppid = getppid(); | |
if ( pid == 0 ) { // fils | |
sigprocmask(SIG_BLOCK, &m, NULL); | |
for ( int i = 0; i < atoi(argv[1]); i++) { | |
for ( int j = 2; argv[j] != NULL; j++ ) { | |
receive = 0; | |
printf("Envoi du signal : %d\n", atoi(argv[j])); | |
kill(ppid, atoi(argv[j])); | |
sigsuspend(&empty); | |
//while( !receive ); | |
} | |
} | |
kill(ppid, SIGTERM); | |
exit(EXIT_SUCCESS); | |
} | |
while(1); | |
//wait(NULL); | |
//pause(); | |
return EXIT_SUCCESS; | |
} |
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Merci bro