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//
// Copyright (c) 2002-2010 The ANGLE Project Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
//
#include "compiler/osinclude.h"
//
// This file contains contains Windows Runtime specific functions
//
#if !defined(ANGLE_OS_WINRT)
#error Trying to build a WinRT specific file in a non-WinRT build.
#endif
#include <vector>
//
// Thread Local Storage Operations
//
__declspec(thread) std::vector<void *> *tls = nullptr;
__declspec(thread) std::vector<OS_TLSIndex> *freeIndices = nullptr;
OS_TLSIndex OS_AllocTLSIndex()
{
if (!tls)
tls = new std::vector<void*>;
if (freeIndices && !freeIndices->empty()) {
OS_TLSIndex index = freeIndices->back();
freeIndices->pop_back();
return index;
} else {
tls->push_back(nullptr);
return tls->size() - 1;
}
}
void *OS_GetTLSValue(OS_TLSIndex nIndex)
{
ASSERT(nIndex != OS_INVALID_TLS_INDEX);
ASSERT(tls);
return tls->at(nIndex);
}
bool OS_SetTLSValue(OS_TLSIndex nIndex, void *lpvValue)
{
if (!tls || nIndex >= tls->size() || nIndex == OS_INVALID_TLS_INDEX) {
ASSERT(0 && "OS_SetTLSValue(): Invalid TLS Index");
return false;
}
tls->at(nIndex) = lpvValue;
return true;
}
bool OS_FreeTLSIndex(OS_TLSIndex nIndex)
{
if (!tls || nIndex >= tls->size() || nIndex == OS_INVALID_TLS_INDEX) {
ASSERT(0 && "OS_SetTLSValue(): Invalid TLS Index");
return false;
}
if (!freeIndices)
freeIndices = new std::vector<OS_TLSIndex>;
freeIndices->push_back(nIndex);
return true;
}
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