Florian Fischer
fe4c4e337e
Remove useless preprocessor define. Terminate the child after 15 seconds. Since the parent is waiting for the child to terminate it is still guaranteed that the child was continued.
58 lines
1.2 KiB
C
58 lines
1.2 KiB
C
/// @file t_stopcont.c
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/// @brief
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/// @copyright (c) 2014-2024 This file is distributed under the MIT License.
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/// See LICENSE.md for details.
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#include <sys/unistd.h>
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#include <signal.h>
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#include <stdlib.h>
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#include <stdio.h>
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#include <string.h>
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#include <time.h>
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#include "stdlib.h"
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#include <sys/wait.h>
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int child_pid;
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void wait_for_child(int signr)
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{
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printf("Signal received: %s\n", strsignal(signr));
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sleep(10);
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printf("Sending continue sig to child\n");
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if (kill(child_pid, SIGCONT) == -1)
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printf("Error sending signal\n");
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}
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int main(int argc, char *argv[])
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{
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sigaction_t action;
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memset(&action, 0, sizeof(action));
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action.sa_handler = wait_for_child;
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if (sigaction(SIGCHLD, &action, NULL) == -1) {
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printf("Failed to set signal handler. %d\n", SIGCHLD);
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return 1;
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}
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child_pid = fork();
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if (child_pid != 0) {
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printf("Child PID: %d\n", child_pid);
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sleep(2);
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printf("Sending stop sig to child\n");
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if (kill(child_pid, SIGSTOP) == -1)
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printf("Errore invio stop\n");
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wait(NULL);
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} else {
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for (int c = 0; c < 5; c++) {
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printf("c: %d\n", c);
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sleep(3);
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}
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exit(0);
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}
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return 0;
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}
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