Function create_lock_pid_file

lockfile.c:109–136

}

static struct tempfile *create_lock_pid_file(const char *pid_path, int mode)
{
	struct strbuf content = STRBUF_INIT;
	struct tempfile *pid_tempfile = NULL;
	int fd;

	if (!lockfile_pid_enabled)
		goto out;

	fd = open(pid_path, O_WRONLY | O_CREAT | O_EXCL, mode);
	if (fd < 0)
		goto out;

	strbuf_addf(&content, "pid %" PRIuMAX "\n", (uintmax_t)getpid());
	if (write_in_full(fd, content.buf, content.len) < 0) {
		warning_errno(_("could not write lock pid file '%s'"), pid_path);
		close(fd);
		unlink(pid_path);
		goto out;
	}

	close(fd);
	pid_tempfile = register_tempfile(pid_path);

out:
	strbuf_release(&content);
	return pid_tempfile;
}

static int read_lock_pid(const char *pid_path, uintmax_t *pid_out)
{