/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
 * This file is part of the LibreOffice project.
 *
 * This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/.
 */

#include "misc.hxx"

#include <windows.h>
#include <process.h>
#include <iostream>
#define OPTIONAL
#include <DbgHelp.h>

#include <rtl/ustrbuf.hxx>

// No-op for now; it needs implementing.
rtl_uString *osl_backtraceAsString()
{
    OUStringBuffer aBuf;

    HANDLE hProcess = GetCurrentProcess();
    SymInitialize( hProcess, NULL, true );

    void * aStack[ 512 ];
    sal_uInt32 nFrames = CaptureStackBackTrace( 0, 512, aStack, NULL );

    SYMBOL_INFO  * pSymbol;
    pSymbol = ( SYMBOL_INFO * )calloc( sizeof( SYMBOL_INFO ) + 1024 * sizeof( char ), 1 );
    pSymbol->MaxNameLen = 1024 - 1;
    pSymbol->SizeOfStruct = sizeof( SYMBOL_INFO );

    for( sal_uInt32 i = 0; i < nFrames; i++ )
    {
        SymFromAddr( hProcess, ( DWORD64 )aStack[ i ], 0, pSymbol );
        aBuf.append( (sal_Int32)(nFrames - i - 1) );
        aBuf.append( ": " );
        aBuf.appendAscii( pSymbol->Name );
        aBuf.append( " - 0x" );
        aBuf.append( (sal_Int64)pSymbol->Address, 16 );
        aBuf.append( "\n" );
    }

    free( pSymbol );

    OUString aStr = aBuf.makeStringAndClear();
    rtl_uString_acquire( aStr.pData );
    return aStr.pData;
}

/* vim:set shiftwidth=4 softtabstop=4 expandtab: */