/*************************************************************************
 *                                                                       *
 * Thread local storage access stub for Open Dynamics Engine,            *
 * Copyright (C) 2008-2019 Oleh Derevenko. All rights reserved.          *
 * Email: odar@eleks.com (change all "a" to "e")                         *
 *                                                                       *
 * Open Dynamics Engine, Copyright (C) 2001,2002 Russell L. Smith.       *
 * All rights reserved.  Email: russ@q12.org   Web: www.q12.org          *
 *                                                                       *
 *                                                                       *
 * This library is free software; you can redistribute it and/or         *
 * modify it under the terms of EITHER:                                  *
 *   (1) The GNU Lesser General Public License as published by the Free  *
 *       Software Foundation; either version 2.1 of the License, or (at  *
 *       your option) any later version. The text of the GNU Lesser      *
 *       General Public License is included with this library in the     *
 *       file LICENSE.TXT.                                               *
 *   (2) The BSD-style license that is included with this library in     *
 *       the file LICENSE-BSD.TXT.                                       *
 *                                                                       *
 * This library is distributed in the hope that it will be useful,       *
 * but WITHOUT ANY WARRANTY; without even the implied warranty of        *
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the files    *
 * LICENSE.TXT and LICENSE-BSD.TXT for more details.                     *
 *                                                                       *
 *************************************************************************/

/*

ODE Thread Local Storage access stub implementation.

*/

#include <ode/common.h>
#include "config.h"
#include "odemath.h"
#include "odetls.h"
#include "collision_trimesh_internal.h"


#if dTLS_ENABLED


using _OU_NAMESPACE::CTLSInitialization;


//////////////////////////////////////////////////////////////////////////
// Class static fields

HTLSKEY COdeTls::m_ahtkStorageKeys[OTK__MAX] = { 0 };


//////////////////////////////////////////////////////////////////////////
// Initialization and finalization

bool COdeTls::Initialize(EODETLSKIND tkTLSKind)
{
    dIASSERT(!m_ahtkStorageKeys[tkTLSKind]);

    bool bResult = false;

    unsigned uOUFlags = 0;

    if (tkTLSKind == OTK_MANUALCLEANUP)
    {
        uOUFlags |= CTLSInitialization::SIF_MANUAL_CLEANUP_ON_THREAD_EXIT;
    }

    if (CTLSInitialization::InitializeTLSAPI(m_ahtkStorageKeys[tkTLSKind], OTI__MAX, uOUFlags))
    {
        bResult = true;
    }

    return bResult;
}

void COdeTls::Finalize(EODETLSKIND tkTLSKind)
{
    CTLSInitialization::FinalizeTLSAPI();

    m_ahtkStorageKeys[tkTLSKind] = 0;
}


void COdeTls::CleanupForThread()
{
    if (m_ahtkStorageKeys[OTK_MANUALCLEANUP])
    {
        CTLSInitialization::CleanupOnThreadExit();
    }
    else
    {
        dIASSERT(false); // The class is not intended to be cleaned up manually
    }
}


//////////////////////////////////////////////////////////////////////////
// Value modifiers

bool COdeTls::AssignDataAllocationFlags(EODETLSKIND tkTLSKind, unsigned uInitializationFlags)
{
    bool bResult = CThreadLocalStorage::SetStorageValue(m_ahtkStorageKeys[tkTLSKind], OTI_DATA_ALLOCATION_FLAGS, (tlsvaluetype)(sizeint)uInitializationFlags);
    return bResult;
}


bool COdeTls::AssignTrimeshCollidersCache(EODETLSKIND tkTLSKind, TrimeshCollidersCache *pccInstance)
{
    dIASSERT(!CThreadLocalStorage::GetStorageValue(m_ahtkStorageKeys[tkTLSKind], OTI_TRIMESH_TRIMESH_COLLIDER_CACHE));

    bool bResult = CThreadLocalStorage::SetStorageValue(m_ahtkStorageKeys[tkTLSKind], OTI_TRIMESH_TRIMESH_COLLIDER_CACHE, (tlsvaluetype)pccInstance, &COdeTls::FreeTrimeshCollidersCache_Callback);
    return bResult;
}

void COdeTls::DestroyTrimeshCollidersCache(EODETLSKIND tkTLSKind)
{
    TrimeshCollidersCache *pccCacheInstance = (TrimeshCollidersCache *)CThreadLocalStorage::GetStorageValue(m_ahtkStorageKeys[tkTLSKind], OTI_TRIMESH_TRIMESH_COLLIDER_CACHE);

    if (pccCacheInstance != NULL)
    {
        FreeTrimeshCollidersCache(pccCacheInstance);

        CThreadLocalStorage::UnsafeSetStorageValue(m_ahtkStorageKeys[tkTLSKind], OTI_TRIMESH_TRIMESH_COLLIDER_CACHE, (tlsvaluetype)NULL);
    }
}


//////////////////////////////////////////////////////////////////////////
// Value type destructors

void COdeTls::FreeTrimeshCollidersCache(TrimeshCollidersCache *pccCacheInstance)
{
#if dTRIMESH_ENABLED 
    delete pccCacheInstance;
#else
    dIASSERT(pccCacheInstance == NULL); // The cache is not being allocated if the library is configured without trimeshes
#endif
}


//////////////////////////////////////////////////////////////////////////
// Value type destructor callbacks

void COdeTls::FreeTrimeshCollidersCache_Callback(tlsvaluetype vValueData)
{
    TrimeshCollidersCache *pccCacheInstance = (TrimeshCollidersCache *)vValueData;
    FreeTrimeshCollidersCache(pccCacheInstance);
}


#endif // #if dTLS_ENABLED