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server: Implement serial port read interval timeouts.
Signed-off-by: Alex Henrie <alexhenrie24@gmail.com> Signed-off-by: Alexandre Julliard <julliard@winehq.org>
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parent
20b5cdb1d4
commit
bc0bf9e505
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@ -62,12 +62,15 @@ static void serial_destroy(struct object *obj);
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static enum server_fd_type serial_get_fd_type( struct fd *fd );
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static void serial_queue_async( struct fd *fd, const async_data_t *data, int type, int count );
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static void serial_reselect_async( struct fd *fd, struct async_queue *queue );
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struct serial
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{
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struct object obj;
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struct fd *fd;
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struct timeout_user *read_timer;
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/* timeout values */
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unsigned int readinterval;
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unsigned int readconst;
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@ -115,7 +118,7 @@ static const struct fd_ops serial_fd_ops =
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no_fd_flush, /* flush */
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default_fd_ioctl, /* ioctl */
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serial_queue_async, /* queue_async */
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default_fd_reselect_async, /* reselect_async */
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serial_reselect_async, /* reselect_async */
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default_fd_cancel_async /* cancel_async */
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};
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@ -134,6 +137,7 @@ struct object *create_serial( struct fd *fd )
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if (!(serial = alloc_object( &serial_ops ))) return NULL;
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serial->read_timer = NULL;
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serial->readinterval = 0;
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serial->readmult = 0;
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serial->readconst = 0;
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@ -157,6 +161,7 @@ static struct fd *serial_get_fd( struct object *obj )
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static void serial_destroy( struct object *obj)
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{
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struct serial *serial = (struct serial *)obj;
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if (serial->read_timer) remove_timeout_user( serial->read_timer );
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release_object( serial->fd );
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}
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@ -203,6 +208,34 @@ static void serial_queue_async( struct fd *fd, const async_data_t *data, int typ
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}
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}
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static void serial_read_timeout( void *arg )
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{
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struct serial *serial = arg;
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serial->read_timer = NULL;
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fd_async_wake_up( serial->fd, ASYNC_TYPE_READ, STATUS_TIMEOUT );
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}
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static void serial_reselect_async( struct fd *fd, struct async_queue *queue )
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{
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struct serial *serial = get_fd_user( fd );
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if (serial->read_timer)
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{
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if (!(default_fd_get_poll_events( fd ) & POLLIN))
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{
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remove_timeout_user( serial->read_timer );
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serial->read_timer = NULL;
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}
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}
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else if (serial->readinterval && (default_fd_get_poll_events( fd ) & POLLIN))
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{
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serial->read_timer = add_timeout_user( (timeout_t)serial->readinterval * -10000,
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serial_read_timeout, serial );
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}
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default_fd_reselect_async( fd, queue );
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}
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DECL_HANDLER(get_serial_info)
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{
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struct serial *serial;
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