ddbe12007a
* This makes sem_delete_owned_sems() a lot more efficient; before it would need to scan the entire semaphore table. * This speeds up the test build of the kernel by another 2 seconds (with KDEBUG=2) on my laptop. git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@33743 a95241bf-73f2-0310-859d-f6bbb57e9c96
56 lines
1.7 KiB
C
56 lines
1.7 KiB
C
/*
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* Copyright 2002-2009, Axel Dörfler, axeld@pinc-software.de.
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* Distributed under the terms of the MIT License.
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*
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* Copyright 2001-2002, Travis Geiselbrecht. All rights reserved.
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* Distributed under the terms of the NewOS License.
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*/
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#ifndef KERNEL_SEM_H
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#define KERNEL_SEM_H
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#include <OS.h>
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#include <thread.h>
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struct kernel_args;
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struct select_info;
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#ifdef __cplusplus
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extern "C" {
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#endif
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extern status_t haiku_sem_init(struct kernel_args *args);
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extern void sem_delete_owned_sems(struct team* team);
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extern int32 sem_used_sems(void);
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extern int32 sem_max_sems(void);
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extern status_t select_sem(int32 object, struct select_info *info, bool kernel);
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extern status_t deselect_sem(int32 object, struct select_info *info,
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bool kernel);
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extern sem_id create_sem_etc(int32 count, const char *name, team_id owner);
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extern const char* sem_get_name_unsafe(sem_id id);
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/* user calls */
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sem_id _user_create_sem(int32 count, const char *name);
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status_t _user_delete_sem(sem_id id);
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status_t _user_acquire_sem(sem_id id);
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status_t _user_acquire_sem_etc(sem_id id, int32 count, uint32 flags, bigtime_t timeout);
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status_t _user_switch_sem(sem_id releaseSem, sem_id id);
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status_t _user_switch_sem_etc(sem_id releaseSem, sem_id id, int32 count, uint32 flags, bigtime_t timeout);
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status_t _user_release_sem(sem_id id);
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status_t _user_release_sem_etc(sem_id id, int32 count, uint32 flags);
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status_t _user_get_sem_count(sem_id id, int32* thread_count);
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status_t _user_get_sem_info(sem_id, struct sem_info *, size_t);
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status_t _user_get_next_sem_info(team_id, int32 *, struct sem_info *, size_t);
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status_t _user_set_sem_owner(sem_id id, team_id team);
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#ifdef __cplusplus
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}
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#endif
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#endif /* KERNEL_SEM_H */
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