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Implemented FlushFileBuffers for serial devices.

This commit is contained in:
Marcus Meissner 2002-07-16 01:20:38 +00:00 committed by Alexandre Julliard
parent a7b2bf4854
commit 1e54c1f088
1 changed files with 17 additions and 2 deletions
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19
server/serial.c
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@ -55,6 +55,7 @@ static int serial_get_poll_events( struct object *obj );
static void serial_queue_async(struct object *obj, void *ptr, unsigned int status, int type, int count); static void serial_queue_async(struct object *obj, void *ptr, unsigned int status, int type, int count);
static void destroy_serial(struct object *obj); static void destroy_serial(struct object *obj);
static void serial_poll_event( struct object *obj, int event ); static void serial_poll_event( struct object *obj, int event );
static int serial_flush( struct object *obj );
struct serial struct serial
{ {
@ -92,7 +93,7 @@ static const struct object_ops serial_ops =
serial_get_poll_events, /* get_poll_events */ serial_get_poll_events, /* get_poll_events */
serial_poll_event, /* poll_event */ serial_poll_event, /* poll_event */
serial_get_fd, /* get_fd */ serial_get_fd, /* get_fd */
no_flush, /* flush */ serial_flush, /* flush */
serial_get_info, /* get_file_info */ serial_get_info, /* get_file_info */
serial_queue_async, /* queue_async */ serial_queue_async, /* queue_async */
destroy_serial /* destroy */ destroy_serial /* destroy */
@ -316,6 +317,21 @@ static void serial_queue_async(struct object *obj, void *ptr, unsigned int statu
set_select_events ( obj, serial_get_poll_events ( obj )); set_select_events ( obj, serial_get_poll_events ( obj ));
} }
static int serial_flush( struct object *obj )
{
int ret;
struct serial *serial = (struct serial *)grab_object(obj);
assert( obj->ops == &serial_ops );
/* MSDN says: If hFile is a handle to a communications device,
* the function only flushes the transmit buffer.
*/
ret = (tcflush( serial->obj.fd, TCOFLUSH ) != -1);
if (!ret) file_set_error();
release_object( serial );
return ret;
}
/* create a serial */ /* create a serial */
DECL_HANDLER(create_serial) DECL_HANDLER(create_serial)
{ {
@ -391,4 +407,3 @@ DECL_HANDLER(set_serial_info)
release_object( serial ); release_object( serial );
} }
} }