94 lines
3.1 KiB
C++
94 lines
3.1 KiB
C++
/*************************************************************************/
|
|
/* rw_lock_windows.cpp */
|
|
/*************************************************************************/
|
|
/* This file is part of: */
|
|
/* GODOT ENGINE */
|
|
/* https://godotengine.org */
|
|
/*************************************************************************/
|
|
/* Copyright (c) 2007-2017 Juan Linietsky, Ariel Manzur. */
|
|
/* Copyright (c) 2014-2017 Godot Engine contributors (cf. AUTHORS.md) */
|
|
/* */
|
|
/* 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 to use, copy, modify, merge, publish, */
|
|
/* distribute, sublicense, and/or sell copies of the Software, and to */
|
|
/* permit persons to whom the Software is furnished to do so, subject to */
|
|
/* the following conditions: */
|
|
/* */
|
|
/* The above copyright notice and this permission notice shall be */
|
|
/* included in all copies or substantial portions of the Software. */
|
|
/* */
|
|
/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
|
|
/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
|
|
/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
|
|
/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
|
|
/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
|
|
/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
|
|
/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
|
|
/*************************************************************************/
|
|
#if defined(WINDOWS_ENABLED)
|
|
|
|
#include "rw_lock_windows.h"
|
|
|
|
#include "error_macros.h"
|
|
#include "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
|