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

     2 // All rights reserved.

     3 // This component and the accompanying materials are made available

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

     5 // which accompanies this distribution, and is available

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

     7 //

     8 // Initial Contributors:

     9 // Nokia Corporation - initial contribution.

    10 //

    11 // Contributors:

    12 //

    13 // Description:

    14 // Utils for XML Engine

    15 //

    16 

    17 #define IN_LIBXML

    18 #include <stdlib.h>

    19 #include <string.h>

    20 #include "libxml2_globals_private.h"

    21 #include <e32std.h>

    22 

    23 /**

    24 Return address at the limit of the system stack.

    25 

    26 When this address is reached, stack overflow occurs.

    27 */

    28 unsigned int xeStackLimitAddress()

    29     {

    30     TThreadStackInfo aInfo;

    31     RThread().StackInfo(aInfo);

    32     return (unsigned int) aInfo.iLimit;

    33     }

    34 

    35 /**

    36 Retrieves a pointer to the 'global state' structure that contains all global settings

    37 

    38 Initialization of global data is performed when first user of XML Engine calls

    39 XmlEngine::XmlEngineAttachL() or XmlEngine::XmlEnginePushL()

    40 */

    41 XMLPUBFUNEXPORT xmlGlobalStatePtr xmlGetGlobalState(void)

    42     {

    43     // DONE: Move code that initializes global data into XmlEngine::XmlEngineAttachL()

    44     xmlGlobalStatePtr gs = STATIC_CAST(xmlGlobalStatePtr, Dll::Tls());

    45     

    46     return gs;

    47     }

    48 

    49 /**

    50 Sets value of tread-local storage.

    51 */

    52 void xeSetTLS(void* aPtr)

    53     {

    54     Dll::SetTls(aPtr);

    55     }

    56 

    57 /**

    58 Returns pointer to the global state structure as it is stored in TLS.

    59 

    60 Use only xeGetTLS() for checking the content of libxml2's TLS, otherwise

    61 Dll:Tls() returns value, which is specific to the caller's DLL and thread, not libxml2's!

    62 */

    63 XMLPUBFUNEXPORT xmlGlobalStatePtr xeGetTLS()

    64     {

    65     return STATIC_CAST(xmlGlobalStatePtr, Dll::Tls());

    66     }