mirror of
https://github.com/MariaDB/server.git
synced 2025-01-23 15:24:16 +01:00
28 lines
573 B
C
28 lines
573 B
C
#include <stdio.h>
|
|
#include <toku_assert.h>
|
|
#include <errno.h>
|
|
#include <unistd.h>
|
|
#include <sys/wait.h>
|
|
#include "toku_portability.h"
|
|
|
|
int main(void) {
|
|
int fd = toku_os_lock_file(__FILE__);
|
|
assert(fd != -1);
|
|
pid_t pid = fork();
|
|
assert(pid != -1);
|
|
if (pid == 0) {
|
|
int fd2 = toku_os_lock_file(__FILE__);
|
|
assert(fd2 == -1);
|
|
return 0;
|
|
} else {
|
|
int status;
|
|
pid_t wpid = waitpid(-1, &status, 0);
|
|
assert(wpid == pid);
|
|
assert(status == 0);
|
|
}
|
|
|
|
int r = toku_os_unlock_file(fd);
|
|
assert(r == 0);
|
|
|
|
return 0;
|
|
}
|