41 lines
710 B
C++
41 lines
710 B
C++
#pragma once
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#include "thread/seadAtomic.h"
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#include "thread/seadSemaphore.h"
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namespace sead
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{
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class Thread;
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class ReadWriteLock
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{
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public:
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ReadWriteLock();
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~ReadWriteLock();
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void readLock();
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void readUnlock();
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void writeLock();
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void writeUnlock();
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private:
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class SemaphoreLock
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{
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public:
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SemaphoreLock();
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void lock();
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void unlock();
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private:
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Semaphore mSemaphore{0, 0x7FFF};
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Atomic<u32> mLockCount{0};
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};
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Atomic<u32> mNumReaders{0};
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Atomic<u32> mNumWriters{0};
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SemaphoreLock mReadLock;
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SemaphoreLock mWriteLock;
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Thread* mWriterThread = nullptr;
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u32 mWritingThreadCount{0};
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};
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} // namespace sead
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