ladybird/Userland/Libraries/LibC/semaphore.h
Idan Horowitz 01f0ae20b6 LibPthread: Implement named semaphores
Note that as part of this commit semaphore.cpp is excluded from the
DynamicLoader, as the dynamic loader does not build with pthread.cpp
which semaphore.cpp uses.
2022-07-21 16:39:22 +02:00

38 lines
771 B
C

/*
* Copyright (c) 2021, the SerenityOS developers.
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#pragma once
#include <limits.h>
#include <pthread.h>
#include <sys/cdefs.h>
#include <sys/types.h>
__BEGIN_DECLS
#define SEM_FLAG_PROCESS_SHARED (1 << 0)
#define SEM_FLAG_NAMED (1 << 1)
typedef struct {
uint32_t magic;
uint32_t value;
uint8_t flags;
} sem_t;
int sem_close(sem_t*);
int sem_destroy(sem_t*);
int sem_getvalue(sem_t*, int*);
int sem_init(sem_t*, int, unsigned int);
sem_t* sem_open(char const*, int, ...);
int sem_post(sem_t*);
int sem_trywait(sem_t*);
int sem_unlink(char const*);
int sem_wait(sem_t*);
int sem_timedwait(sem_t*, const struct timespec* abstime);
#define SEM_FAILED ((sem_t*)0)
#define SEM_VALUE_MAX INT_MAX
__END_DECLS