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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 <cppu/helper/purpenv/Mapping.hxx>
#include "Proxy.hxx"
#include <osl/interlck.h>
#include <sal/log.hxx>
#include <uno/environment.hxx>
#include <uno/dispatcher.h>
using namespace com::sun::star;
namespace {
class Mapping : public uno_Mapping
{
uno::Environment m_from;
uno::Environment m_to;
oslInterlockedCount m_nCount;
cppu::helper::purpenv::ProbeFun * m_probeFun;
void * m_pContext;
public:
explicit Mapping(uno_Environment * pFrom,
uno_Environment * pTo,
cppu::helper::purpenv::ProbeFun * probeFun,
void * pProbeContext);
virtual ~Mapping();
void mapInterface(
uno_Interface ** ppOut,
uno_Interface * pUnoI,
typelib_InterfaceTypeDescription * pTypeDescr);
void acquire();
void release();
};
}
static void s_mapInterface(
uno_Mapping * puno_Mapping,
void ** ppOut,
void * pUnoI,
typelib_InterfaceTypeDescription * pTypeDescr )
SAL_THROW_EXTERN_C()
{
Mapping * pMapping = static_cast<Mapping *>(puno_Mapping);
pMapping->mapInterface(
reinterpret_cast<uno_Interface **>(ppOut),
static_cast<uno_Interface *>(pUnoI), pTypeDescr);
}
extern "C" {
static void s_acquire(uno_Mapping * puno_Mapping)
SAL_THROW_EXTERN_C()
{
Mapping * pMapping = static_cast<Mapping *>(puno_Mapping);
pMapping->acquire();
}
static void s_release(uno_Mapping * puno_Mapping)
SAL_THROW_EXTERN_C()
{
Mapping * pMapping = static_cast<Mapping * >(puno_Mapping);
pMapping->release();
}
static void s_getIdentifier_v(va_list * pParam)
{
uno_ExtEnvironment * pEnv = va_arg(*pParam, uno_ExtEnvironment *);
rtl_uString ** ppOid = va_arg(*pParam, rtl_uString **);
uno_Interface * pUnoI = va_arg(*pParam, uno_Interface *);
pEnv->getObjectIdentifier(pEnv, ppOid, pUnoI);
}
static void s_free(uno_Mapping * puno_Mapping)
SAL_THROW_EXTERN_C()
{
Mapping * pMapping = static_cast<Mapping *>(puno_Mapping);
delete pMapping;
}
}
Mapping::Mapping(uno_Environment * pFrom,
uno_Environment * pTo,
cppu::helper::purpenv::ProbeFun * probeFun,
void * pProbeContext
)
: m_from (pFrom),
m_to (pTo),
m_nCount (1),
m_probeFun(probeFun),
m_pContext(pProbeContext)
{
SAL_INFO("cppu.purpenv", "LIFE: Mapping::Mapping(uno_Environment * pFrom, uno_Environment * pTo -> " << this);
uno_Mapping::acquire = s_acquire;
uno_Mapping::release = s_release;
uno_Mapping::mapInterface = s_mapInterface;
}
Mapping::~Mapping()
{
SAL_INFO("cppu.purpenv", "LIFE: Mapping:~Mapping() -> " << this);
}
void Mapping::mapInterface(
uno_Interface ** ppOut,
uno_Interface * pUnoI,
typelib_InterfaceTypeDescription * pTypeDescr)
{
OSL_ASSERT(ppOut && pTypeDescr);
if (*ppOut)
{
(*ppOut)->release(*ppOut);
*ppOut = nullptr;
}
if (!pUnoI)
return;
// get object id of uno interface to be wrapped
// need to enter environment because of potential "queryInterface" call
rtl_uString * pOId = nullptr;
uno_Environment_invoke(m_from.get(), s_getIdentifier_v, m_from.get(), &pOId, pUnoI);
OSL_ASSERT(pOId);
// try to get any known interface from target environment
m_to.get()->pExtEnv->getRegisteredInterface(m_to.get()->pExtEnv, reinterpret_cast<void **>(ppOut), pOId, pTypeDescr);
if (!*ppOut) // not yet there, register new proxy interface
{
// try to publish a new proxy (ref count initially 1)
uno_Interface * pProxy = new Proxy(this,
m_from.get(),
m_to.get(),
pUnoI,
pTypeDescr,
pOId,
m_probeFun,
m_pContext);
// proxy may be exchanged during registration
m_to.get()->pExtEnv->registerProxyInterface(m_to.get()->pExtEnv,
reinterpret_cast<void **>(&pProxy),
Proxy_free,
pOId,
pTypeDescr);
*ppOut = pProxy;
}
rtl_uString_release(pOId);
}
void Mapping::acquire()
{
if (osl_atomic_increment(&m_nCount) == 1)
{
uno_Mapping * pMapping = this;
::uno_registerMapping(&pMapping, s_free, m_from.get(), m_to.get(), nullptr);
}
}
void Mapping::release()
{
if (osl_atomic_decrement(&m_nCount) == 0)
::uno_revokeMapping(this);
}
namespace cppu::helper::purpenv {
void createMapping(uno_Mapping ** ppMapping,
uno_Environment * pFrom,
uno_Environment * pTo,
ProbeFun * probeFun,
void * pContext
)
{
*ppMapping = new Mapping(pFrom, pTo, probeFun, pContext);
::uno_registerMapping(ppMapping, s_free, pFrom, pTo, nullptr);
}
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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