1/*
2 * Copyright 2007, Ingo Weinhold, bonefish@cs.tu-berlin.de. All rights reserved.
3 * Distributed under the terms of the MIT License.
4 */
5
6#ifndef _KERNEL_WAIT_FOR_OBJECTS_H
7#define _KERNEL_WAIT_FOR_OBJECTS_H
8
9#include <OS.h>
10
11#include <lock.h>
12
13
14struct select_sync;
15
16
17typedef struct select_info {
18	struct select_info*			next;
19	struct select_sync*			sync;
20	int32						events;
21	uint16						selected_events;
22} select_info;
23
24
25#define SELECT_FLAG(type) (1L << (type - 1))
26
27#define SELECT_OUTPUT_ONLY_FLAGS \
28	(B_EVENT_ERROR | B_EVENT_DISCONNECTED | B_EVENT_INVALID)
29
30#define SELECT_TYPE_IS_OUTPUT_ONLY(type) \
31	((SELECT_FLAG(type) & SELECT_OUTPUT_ONLY_FLAGS) != 0)
32
33
34#ifdef __cplusplus
35extern "C" {
36#endif
37
38
39extern void		acquire_select_sync(select_sync* sync);
40extern void		put_select_sync(select_sync* sync);
41extern status_t	notify_select_events(select_info* info, uint16 events);
42extern void		notify_select_events_list(select_info* list, uint16 events);
43
44extern ssize_t	_user_wait_for_objects(object_wait_info* userInfos,
45					int numInfos, uint32 flags, bigtime_t timeout);
46
47
48#ifdef __cplusplus
49}
50#endif
51
52#endif	// _KERNEL_WAIT_FOR_OBJECTS_H
53