Exemplos de flock_make_lock em C++ (Cpp)

Exemplo n.º 1

Arquivo: locks.c Projeto: chinnyannieb/empeg-hijack

/* flock() system call entry point. Apply a FL_FLOCK style lock to
 * an open file descriptor.
 */
asmlinkage int sys_flock(unsigned int fd, unsigned int cmd)
{
	struct file_lock file_lock;
	struct file *filp;
	int error;

	lock_kernel();
	error = -EBADF;
	filp = fget(fd);
	if (!filp)
		goto out;
	error = -EINVAL;
	if (!flock_make_lock(filp, &file_lock, cmd))
		goto out_putf;
	error = -EBADF;
	if ((file_lock.fl_type != F_UNLCK) && !(filp->f_mode & 3))
		goto out_putf;
	error = flock_lock_file(filp, &file_lock,
				(cmd & (LOCK_UN | LOCK_NB)) ? 0 : 1);
out_putf:
	fput(filp);
out:
	unlock_kernel();
	return (error);
}

Exemplo n.º 2

Arquivo: locks.c Projeto: shattered/linux-m68k

/* flock() system call entry point. Apply a FL_FLOCK style lock to
 * an open file descriptor.
 */
asmlinkage int sys_flock(unsigned int fd, unsigned int cmd)
{
	struct file_lock file_lock;
	struct file *filp;

	if ((fd >= NR_OPEN) || !(filp = current->files->fd[fd]))
		return (-EBADF);

	if (!flock_make_lock(filp, &file_lock, cmd))
		return (-EINVAL);
	
	if ((file_lock.fl_type != F_UNLCK) && !(filp->f_mode & 3))
		return (-EBADF);

	return (flock_lock_file(filp, &file_lock, (cmd & (LOCK_UN | LOCK_NB)) ? 0 : 1));
}