1/*
2 * Copyright 2002-2009, Axel D��rfler, axeld@pinc-software.de.
3 * Distributed under the terms of the MIT License.
4 *
5 * Copyright 2001-2002, Travis Geiselbrecht. All rights reserved.
6 * Distributed under the terms of the NewOS License.
7 */
8#ifndef KERNEL_SEM_H
9#define KERNEL_SEM_H
10
11
12#include <OS.h>
13#include <thread.h>
14
15
16struct kernel_args;
17struct select_info;
18
19
20#ifdef __cplusplus
21extern "C" {
22#endif
23
24extern status_t haiku_sem_init(struct kernel_args *args);
25extern void sem_delete_owned_sems(Team* team);
26extern int32 sem_used_sems(void);
27extern int32 sem_max_sems(void);
28
29extern status_t select_sem(int32 object, struct select_info *info, bool kernel);
30extern status_t deselect_sem(int32 object, struct select_info *info,
31			bool kernel);
32
33extern sem_id create_sem_etc(int32 count, const char *name, team_id owner);
34
35extern const char* sem_get_name_unsafe(sem_id id);
36
37/* user calls */
38sem_id _user_create_sem(int32 count, const char *name);
39status_t _user_delete_sem(sem_id id);
40status_t _user_acquire_sem(sem_id id);
41status_t _user_acquire_sem_etc(sem_id id, int32 count, uint32 flags, bigtime_t timeout);
42status_t _user_switch_sem(sem_id releaseSem, sem_id id);
43status_t _user_switch_sem_etc(sem_id releaseSem, sem_id id, int32 count, uint32 flags, bigtime_t timeout);
44status_t _user_release_sem(sem_id id);
45status_t _user_release_sem_etc(sem_id id, int32 count, uint32 flags);
46status_t _user_get_sem_count(sem_id id, int32* thread_count);
47status_t _user_get_sem_info(sem_id, struct sem_info *, size_t);
48status_t _user_get_next_sem_info(team_id, int32 *, struct sem_info *, size_t);
49status_t _user_set_sem_owner(sem_id id, team_id team);
50
51#ifdef __cplusplus
52}
53#endif
54
55#endif	/* KERNEL_SEM_H */
56