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30 lines
474 B
C
30 lines
474 B
C
// Copyright 2018 plutoo
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#include "kernel/mutex.h"
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#include "kernel/rwlock.h"
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void rwlockReadLock(RwLock* r) {
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rmutexLock(&r->r);
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if (r->b++ == 0)
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rmutexLock(&r->g);
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rmutexUnlock(&r->r);
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}
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void rwlockReadUnlock(RwLock* r) {
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rmutexLock(&r->r);
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if (r->b-- == 1)
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rmutexUnlock(&r->g);
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rmutexUnlock(&r->r);
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}
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void rwlockWriteLock(RwLock* r) {
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rmutexLock(&r->g);
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}
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void rwlockWriteUnlock(RwLock* r) {
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rmutexUnlock(&r->g);
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}
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