// Copyright (c) 2005-2009 Nokia Corporation and/or its subsidiary(-ies).

// All rights reserved.

// This component and the accompanying materials are made available

// under the terms of "Eclipse Public License v1.0"

// which accompanies this distribution, and is available

// at the URL "http://www.eclipse.org/legal/epl-v10.html".

//

// Initial Contributors:

// Nokia Corporation - initial contribution.

//

// Contributors:

//

// Description:

// Name     : pthread_setspecific.cpp

// Part of  : PThread library

// pthread_setspecific call is implemented.

// Version:

//

#include <pthread.h>

#include <errno.h>

#include "threadglobals.h"

#include "pthreadmisc.h"

EXPORT_C int pthread_setspecific(pthread_key_t key, const void *value)

{

    _global_data_t *glbPtr;

    _pthread_node_t *selfNodePtr;

    _pkey_node_t *tlsPtr;

    THR_PRINTF("[pthread] Begin pthread_setspecific\n");

    if (key >= PTHREAD_KEYS_MAX)

    {

        THR_PRINTF("[pthread] End pthread_setspecific\n");

        return EINVAL;

    }

    //Get the TLS value (self node pointer)

    selfNodePtr = (_pthread_node_t*) _pthread_getTls();

    if (NULL == selfNodePtr)    // This should never happen

    {

        return ENOMEM;

    }

    glbPtr = selfNodePtr->glbDataPtr;  // point to global struct

    glbPtr->lockThreadTable.Wait();    // Acquire the thread table lock

    int idx;

    idx = key / 32;

    int bitPos;

    bitPos = key % 32;

    if (((glbPtr->statusflag[idx]) & (0x1<<bitPos)) == _KEY_UNUSED)

    {

        THR_PRINTF("[pthread] End pthread_setspecific\n");

        glbPtr->lockThreadTable.Signal();  // release thread table lock

        return EINVAL;

    }

    // Lock the TCB

    selfNodePtr->lockNode.Wait();

    for (tlsPtr = selfNodePtr->tlsHead; tlsPtr != NULL; tlsPtr = tlsPtr->next)

    {

        if (tlsPtr->keyNumber == key)

        {

                tlsPtr->tls = (void*)value;

                break; 

        }

    }

    if (tlsPtr == NULL) // First node

    {

        // This should never happen; key tobe set

        selfNodePtr->lockNode.Signal();

        glbPtr->lockThreadTable.Signal();  // release thread table lock

        return EINVAL;

    }

    // Unlock TCB node

    selfNodePtr->lockNode.Signal();

    glbPtr->lockThreadTable.Signal();  // release thread table lock

    THR_PRINTF("[pthread] End pthread_setspecific\n");

    return 0;

}

// End of file