1 files changed, 57 insertions, 0 deletions
diff --git a/vendor/github.com/checkpoint-restore/go-criu/test/piggie.c b/vendor/github.com/checkpoint-restore/go-criu/test/piggie.c
new file mode 100644
index 000000000..1dc0801c0
--- /dev/null
+++ b/vendor/github.com/checkpoint-restore/go-criu/test/piggie.c
@@ -0,0 +1,57 @@
+#define _GNU_SOURCE
+#include <stdio.h>
+#include <signal.h>
+#include <unistd.h>
+#include <sys/mman.h>
+#include <fcntl.h>
+#include <sched.h>
+
+#define STKS	(4*4096)
+
+#ifndef CLONE_NEWPID
+#define CLONE_NEWPID    0x20000000
+#endif
+
+static int do_test(void *logf)
+{
+	int fd, i = 0;
+
+	setsid();
+
+	close(0);
+	close(1);
+	close(2);
+
+	fd = open("/dev/null", O_RDONLY);
+	if (fd != 0) {
+		dup2(fd, 0);
+		close(fd);
+	}
+
+	fd = open(logf, O_WRONLY | O_TRUNC | O_CREAT, 0600);
+	dup2(fd, 1);
+	dup2(fd, 2);
+	if (fd != 1 && fd != 2)
+		close(fd);
+
+	while (1) {
+		sleep(1);
+		printf("%d\n", i++);
+		fflush(stdout);
+	}
+
+	return 0;
+}
+
+int main(int argc, char **argv)
+{
+	int pid;
+	void *stk;
+
+	stk = mmap(NULL, STKS, PROT_READ | PROT_WRITE,
+			MAP_PRIVATE | MAP_ANON | MAP_GROWSDOWN, 0, 0);
+	pid = clone(do_test, stk + STKS, SIGCHLD | CLONE_NEWPID, argv[1]);
+	printf("Child forked, pid %d\n", pid);
+
+	return 0;
+}