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/* Returns the pipe that SOCKET is reading from, locked and with an
additional reference, or NULL if it has none. SOCKET mustn't be locked. */
struct pipe *
socket_aquire_read_pipe (struct socket *socket)
{
struct pipe *pipe;
mutex_lock (&socket->lock);
pipe = user->socket->read_pipe;
if (pipe != NULL)
pipe_aquire (pipe); /* Do this before unlocking the socket! */
mutex_unlock (&socket->lock);
return pipe;
}
/* Returns the pipe that SOCKET is writing from, locked and with an
additional reference, or NULL if it has none. SOCKET mustn't be locked. */
struct pipe *
socket_aquire_write_pipe (struct socket *socket)
{
struct pipe *pipe;
mutex_lock (&socket->lock);
pipe = user->socket->write_pipe;
if (pipe != NULL)
pipe_aquire (pipe); /* Do this before unlocking the socket! */
mutex_unlock (&socket->lock);
return pipe;
}
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