brisc_mutex.h

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MIT License

Copyright (c) 2021 Mike Sharkey

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
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The above copyright notice and this permission notice shall be included in all
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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SOFTWARE.

******************************************************************************/
#ifndef _BRISC_MUTEX_H_
#define _BRISC_MUTEX_H_

#include <cpu.h>
#include <stdbool.h>

#ifdef __cplusplus
extern "C"
{
#endif

typedef uint32_t    brisc_mutex_t;

#define BRISC_MUTEX_DECL(n)  brisc_mutex_t n = 0

#define b_mutex_init(mutex)  b_mutex_unlock((mutex))

extern void b_mutex_lock( brisc_mutex_t* mutex );

extern bool b_mutex_try_lock( brisc_mutex_t* mutex );

extern void b_mutex_unlock( brisc_mutex_t* mutex );

extern void b_mutex_release( brisc_mutex_t* mutex );

#ifdef __cplusplus
}
#endif

#endif