f6a31876ce
Added support functions in sem.h and port.h that return some stats. git-svn-id: file:///srv/svn/repos/haiku/trunk/current@7289 a95241bf-73f2-0310-859d-f6bbb57e9c96
37 lines
1.2 KiB
C
Executable File
37 lines
1.2 KiB
C
Executable File
/*
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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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/* 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_delete_sem_etc(sem_id id, status_t return_code, bool interrupted);
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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_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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/* kernel calls */
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extern sem_id create_sem_etc(int32 count, const char *name, team_id owner);
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extern status_t sem_init(struct kernel_args *ka);
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extern int sem_delete_owned_sems(team_id owner);
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extern status_t sem_interrupt_thread(struct thread *t);
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extern int32 sem_used_sems(void);
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extern int32 sem_max_sems(void);
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#endif /* KERNEL_SEM_H */
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