# Cppcheck report - LibreOffice: cppu/source/LogBridge/LogBridge.cxx

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    /* -*- 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/.
     *
     * This file incorporates work covered by the following license notice:
     *
     *   Licensed to the Apache Software Foundation (ASF) under one or more
     *   contributor license agreements. See the NOTICE file distributed
     *   with this work for additional information regarding copyright
     *   ownership. The ASF licenses this file to you under the Apache
     *   License, Version 2.0 (the "License"); you may not use this file
     *   except in compliance with the License. You may obtain a copy of
     *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
     */

    #include "osl/mutex.hxx"
    #include "osl/thread.h"
    #include "osl/thread.hxx"
    #include <osl/diagnose.h>
    #include "uno/dispatcher.h"
    #include "typelib/typedescription.hxx"
    #include <cppu/Enterable.hxx>
    #include "cppu/helper/purpenv/Environment.hxx"
    #include "cppu/helper/purpenv/Mapping.hxx"
    #include "cppu/EnvDcp.hxx"
    #include "uno/environment.hxx"
    #include <com/sun/star/uno/Type.hxx>

    namespace
    {
    class LogBridge : public cppu::Enterable
    {
        osl::Mutex          m_mutex;
        sal_Int32           m_count;
        oslThreadIdentifier m_threadId;

        virtual  ~LogBridge(void);

    public:
        explicit LogBridge(void);

        virtual void v_callInto_v(uno_EnvCallee * pCallee, va_list * pParam) SAL_OVERRIDE;
        virtual void v_callOut_v (uno_EnvCallee * pCallee, va_list * pParam) SAL_OVERRIDE;

        virtual void v_enter(void) SAL_OVERRIDE;
        virtual void v_leave(void) SAL_OVERRIDE;

        virtual bool v_isValid(rtl::OUString * pReason) SAL_OVERRIDE;
    };

    LogBridge::LogBridge(void)
        : m_count   (0)
          ,m_threadId(0)
    {
    }

    LogBridge::~LogBridge(void)
    {
        OSL_ASSERT(m_count >= 0);
    }

    void LogBridge::v_callInto_v(uno_EnvCallee * pCallee, va_list * pParam)
    {
        enter();
        pCallee(pParam);
        leave();
    }

    void LogBridge::v_callOut_v(uno_EnvCallee * pCallee, va_list * pParam)
    {
        OSL_ASSERT(m_count > 0);

        -- m_count;
        pCallee(pParam);
        ++ m_count;

        if (!m_threadId)
            m_threadId = osl::Thread::getCurrentIdentifier();
    }

    void LogBridge::v_enter(void)
    {
        m_mutex.acquire();

        OSL_ASSERT(m_count >= 0);

        if (m_count == 0)
            m_threadId = osl::Thread::getCurrentIdentifier();

        ++ m_count;
    }

    void LogBridge::v_leave(void)
    {
        OSL_ASSERT(m_count > 0);

        -- m_count;
        if (!m_count)
            m_threadId = 0;

        m_mutex.release();
    }

    bool LogBridge::v_isValid(rtl::OUString * pReason)
    {
        bool result = m_count > 0;
        if (!result)
        {
            *pReason = "not entered";
        }
        else
        {
            result = m_threadId == osl::Thread::getCurrentIdentifier();

            if (!result)
                *pReason = "wrong thread";
        }

        if (result)
            *pReason = "OK";

        return result;
    }

        void traceValue(typelib_TypeDescriptionReference* _pTypeRef,void* pArg)
        {
            switch(_pTypeRef->eTypeClass)
            {
                case typelib_TypeClass_STRING:
                    {
                        const ::rtl::OString sValue( ::rtl::OUStringToOString(*static_cast< ::rtl::OUString*>(pArg),osl_getThreadTextEncoding()));
                        SAL_INFO("cppu.log", "" << sValue.getStr());
                    }
                    break;
                case typelib_TypeClass_BOOLEAN:
                   SAL_INFO("cppu.log", "" << *static_cast<sal_Bool*>(pArg));
                    break;
                case typelib_TypeClass_BYTE:
                   SAL_INFO("cppu.log", "" << *static_cast<sal_Int8*>(pArg));
                    break;
                case typelib_TypeClass_CHAR:
                   SAL_INFO("cppu.log", "" << *static_cast<sal_Char*>(pArg));
                    break;
                case typelib_TypeClass_SHORT:
                case typelib_TypeClass_UNSIGNED_SHORT:
                   SAL_INFO("cppu.log", "" << *static_cast<sal_Int16*>(pArg));
                    break;
                case typelib_TypeClass_LONG:
                case typelib_TypeClass_UNSIGNED_LONG:
                case typelib_TypeClass_ENUM:
                   SAL_INFO("cppu.log", "" << *static_cast<sal_Int32*>(pArg));
                    break;
                case typelib_TypeClass_HYPER:
                case typelib_TypeClass_UNSIGNED_HYPER:
                   SAL_INFO("cppu.log", "" << *static_cast<sal_Int64*>(pArg));
                    break;
                case typelib_TypeClass_FLOAT:
                   SAL_INFO("cppu.log", "" << *static_cast<float*>(pArg));
                    break;
                case typelib_TypeClass_DOUBLE:
                   SAL_INFO("cppu.log", "" << *static_cast<double*>(pArg));
                    break;
                case typelib_TypeClass_TYPE:
                    {
                        const ::rtl::OString sValue( ::rtl::OUStringToOString(((com::sun::star::uno::Type*)pArg)->getTypeName(),osl_getThreadTextEncoding()));
                       SAL_INFO("cppu.log", "" << sValue.getStr());
                    }
                    break;
                case typelib_TypeClass_ANY:
                    if ( static_cast<uno_Any*>(pArg)->pData )
                        traceValue(static_cast<uno_Any*>(pArg)->pType,static_cast<uno_Any*>(pArg)->pData);
                    else
                       SAL_INFO("cppu.log", "void");
                    break;
                case typelib_TypeClass_EXCEPTION:
                   SAL_INFO("cppu.log", "exception");
                    break;
                case typelib_TypeClass_INTERFACE:
                    {
                        const ::rtl::OString sValue( ::rtl::OUStringToOString(_pTypeRef->pTypeName,osl_getThreadTextEncoding()));
                       SAL_INFO("cppu.log", "" << sValue.getStr() << "0x" << std::hex << pArg);
                    }
                    break;
                case typelib_TypeClass_VOID:
                   SAL_INFO("cppu.log", "void");
                    break;
                default:
                   SAL_INFO("cppu.log", "0x" << std::hex << pArg);
                    break;
            } // switch(pParams[i].pTypeRef->eTypeClass)
        }
    }

    void LogProbe(
        bool                                pre,
        SAL_UNUSED_PARAMETER void         * /*pThis*/,
        SAL_UNUSED_PARAMETER void         * /*pContext*/,
        typelib_TypeDescriptionReference  * pReturnTypeRef,
        typelib_MethodParameter           * pParams,
        sal_Int32                           nParams,
        typelib_TypeDescription     const * pMemberType,
        void                              * pReturn,
        void                              * pArgs[],
        uno_Any                          ** ppException )
    {
        ::rtl::OString sTemp;
        if ( pMemberType && pMemberType->pTypeName )
            sTemp = ::rtl::OUStringToOString(pMemberType->pTypeName,RTL_TEXTENCODING_ASCII_US);
        if ( pre  )
        {
            SAL_INFO("cppu.log", "{ LogBridge () " << sTemp.getStr() );
            if ( nParams )
            {
               SAL_INFO("cppu.log", "\n| : ( LogBridge ");
                for(sal_Int32 i = 0;i < nParams;++i)
                {
                    if ( i > 0 )
                       SAL_INFO("cppu.log", ",");
                    traceValue(pParams[i].pTypeRef,pArgs[i]);

                }
               SAL_INFO("cppu.log", ")");
            } // if ( nParams )
           SAL_INFO("cppu.log", "\n");
        }
        else if ( !pre )
        {
            SAL_INFO("cppu.log", "} LogBridge () " << sTemp.getStr());
            if ( ppException && *ppException )
            {
                SAL_INFO("cppu.log", " exception occurred : ");
                typelib_TypeDescription * pElementTypeDescr = 0;
                TYPELIB_DANGER_GET( &pElementTypeDescr, (*ppException)->pType );
                const ::rtl::OString sValue( ::rtl::OUStringToOString(pElementTypeDescr->pTypeName,osl_getThreadTextEncoding()));
               SAL_INFO("cppu.log", "" << sValue.getStr());
                TYPELIB_DANGER_RELEASE( pElementTypeDescr );
            }
            else if ( pReturnTypeRef )
            {
               SAL_INFO("cppu.log", " return : ");
                traceValue(pReturnTypeRef,pReturn);
            } // if ( pReturn && pReturnTypeRef )

           SAL_INFO("cppu.log", "\n");
        }
    }

    #ifdef DISABLE_DYNLOADING

    #define uno_initEnvironment log_uno_uno_initEnvironment
    #define uno_ext_getMapping log_uno_uno_ext_getMapping

    #endif

    extern "C" void SAL_DLLPUBLIC_EXPORT SAL_CALL uno_initEnvironment(uno_Environment * pEnv)<--- The function 'log_uno_uno_initEnvironment' is never used.
        SAL_THROW_EXTERN_C()
    {
        cppu::helper::purpenv::Environment_initWithEnterable(pEnv, new LogBridge());
    }

    extern "C" void SAL_DLLPUBLIC_EXPORT SAL_CALL uno_ext_getMapping(uno_Mapping     ** ppMapping,<--- The function 'log_uno_uno_ext_getMapping' is never used.
                                       uno_Environment  * pFrom,
                                       uno_Environment  * pTo )
    {
        cppu::helper::purpenv::createMapping(ppMapping, pFrom, pTo,LogProbe);
    }

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