semaphore.h

// Copyright (c) 2015 Nuxi, https://nuxi.nl/
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions
// are met:
// 1. Redistributions of source code must retain the above copyright
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// 2. Redistributions in binary form must reproduce the above copyright
//    notice, this list of conditions and the following disclaimer in the
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//
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// ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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// DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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// <semaphore.h> - semaphores
//
// Features missing:
// - sem_open(), sem_close(), sem_unlink(), SEM_FAILED:
//   Requires global filesystem namespace.

#ifndef _SEMAPHORE_H_
#define _SEMAPHORE_H_

#include <_/types.h>

typedef __sem_t sem_t;

struct timespec;

__BEGIN_DECLS
int sem_destroy(sem_t *);
int sem_getvalue(sem_t *__restrict, int *__restrict);
int sem_init(sem_t *, int, unsigned int);
int sem_post(sem_t *);
int sem_timedwait(sem_t *__restrict, const struct timespec *__restrict);
int sem_trywait(sem_t *);
int sem_wait(sem_t *);
__END_DECLS

#endif