/*************************************************************************/
/*  rw_lock_windows.cpp                                                  */
/*************************************************************************/
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#if defined(WINDOWS_ENABLED)

#include "rw_lock_windows.h"

#include "core/error/error_macros.h"
#include "core/os/memory.h"

#include <stdio.h>

void RWLockWindows::read_lock() {
	AcquireSRWLockShared(&lock);
}

void RWLockWindows::read_unlock() {
	ReleaseSRWLockShared(&lock);
}

Error RWLockWindows::read_try_lock() {
	if (TryAcquireSRWLockShared(&lock) == 0) {
		return ERR_BUSY;
	} else {
		return OK;
	}
}

void RWLockWindows::write_lock() {
	AcquireSRWLockExclusive(&lock);
}

void RWLockWindows::write_unlock() {
	ReleaseSRWLockExclusive(&lock);
}

Error RWLockWindows::write_try_lock() {
	if (TryAcquireSRWLockExclusive(&lock) == 0) {
		return ERR_BUSY;
	} else {
		return OK;
	}
}

RWLock *RWLockWindows::create_func_windows() {
	return memnew(RWLockWindows);
}

void RWLockWindows::make_default() {
	create_func = create_func_windows;
}

RWLockWindows::RWLockWindows() {
	InitializeSRWLock(&lock);
}

RWLockWindows::~RWLockWindows() {
}

#endif