mirror of
https://github.com/clearlinux/graphene.git
synced 2026-09-07 22:31:51 +00:00
58 lines
1.3 KiB
C
58 lines
1.3 KiB
C
/* -*- mode:c; c-file-style:"k&r"; c-basic-offset: 4; tab-width:4; indent-tabs-mode:nil; mode:auto-fill; fill-column:78; -*- */
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/* vim: set ts=4 sw=4 et tw=78 fo=cqt wm=0: */
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <errno.h>
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#include <unistd.h>
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#include <signal.h>
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#include <time.h>
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int kill_parent = 0;
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int main(int argc, char ** argv)
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{
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if (argc == 2 && !strcmp("parent", argv[1]))
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kill_parent = 1;
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int parent_pid = getpid();
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pid_t pid = fork();
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if (pid < 0) {
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printf("failed on fork (%s)\n", strerror(errno));
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return -1;
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}
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if (pid == 0) {
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struct timespec rem;
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rem.tv_sec = kill_parent ? 1 : 60;
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rem.tv_nsec = 0;
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printf("[pid=%d|ppid=%d] Going to sleep...\n", getpid(), getppid());
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nanosleep(&rem, 0);
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if (kill_parent)
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kill(parent_pid, SIGKILL);
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printf("[pid=%d|ppid=%d] Hello, Dad!\n", getpid(), getppid());
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return 0;
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}
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else {
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struct timespec rem;
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rem.tv_sec = kill_parent ? 60 : 1;
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rem.tv_nsec = 0;
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printf("[pid=%d|ppid=%d] Going to sleep...\n", getpid(), getppid());
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nanosleep(&rem, 0);
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if (!kill_parent)
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kill(pid, SIGKILL);
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printf("[pid=%d|ppid=%d] Hello, Kid!\n", getpid(), getppid());
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return 0;
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}
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}
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