diff options
Diffstat (limited to 'cli_ure/source/uno_bridge/cli_bridge.cxx')
| -rw-r--r-- | cli_ure/source/uno_bridge/cli_bridge.cxx | 321 |
1 files changed, 321 insertions, 0 deletions
diff --git a/cli_ure/source/uno_bridge/cli_bridge.cxx b/cli_ure/source/uno_bridge/cli_bridge.cxx new file mode 100644 index 000000000..00d2747ca --- /dev/null +++ b/cli_ure/source/uno_bridge/cli_bridge.cxx @@ -0,0 +1,321 @@ +/* -*- 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 <vcclr.h> +#if !defined WIN32_LEAN_AND_MEAN +# define WIN32_LEAN_AND_MEAN +#endif +#include <windows.h> +#include "uno/environment.hxx" +#include "uno/lbnames.h" +#include "uno/mapping.hxx" +#include "typelib/typedescription.hxx" +#include "rtl/ustring.hxx" +#include <sal/log.hxx> + +#include "cli_bridge.h" +#include "cli_proxy.h" + +namespace sri= System::Runtime::InteropServices; + +namespace cli_uno +{ + +extern "C" +{ +void SAL_CALL Mapping_acquire( uno_Mapping * mapping ) + SAL_THROW_EXTERN_C() +{ + Mapping const * that = static_cast< Mapping const * >( mapping ); + that->m_bridge->acquire(); +} + +void SAL_CALL Mapping_release( uno_Mapping * mapping ) + SAL_THROW_EXTERN_C() +{ + Mapping const * that = static_cast< Mapping const * >( mapping ); + that->m_bridge->release(); +} + + +void SAL_CALL Mapping_cli2uno( + uno_Mapping * mapping, void ** ppOut, + void * pIn, typelib_InterfaceTypeDescription * td ) + SAL_THROW_EXTERN_C() +{ + uno_Interface ** ppUnoI = (uno_Interface **)ppOut; + intptr_t cliI = (intptr_t)pIn; + + OSL_ENSURE( ppUnoI && td, "### null ptr!" ); + + if (0 != *ppUnoI) + { + uno_Interface * pUnoI = *(uno_Interface **)ppUnoI; + (*pUnoI->release)( pUnoI ); + *ppUnoI = 0; + } + try + { + Mapping const * that = static_cast< Mapping const * >( mapping ); + Bridge * bridge = that->m_bridge; + + if (0 != cliI) + { + System::Object^ cliObj= sri::GCHandle::FromIntPtr(IntPtr(cliI)).Target; + (*ppOut)= bridge->map_cli2uno(cliObj, (typelib_TypeDescription*) td); + } + } + catch (BridgeRuntimeError & err) + { + (void) err; + SAL_WARN( "cli", "[cli_uno bridge error] " << err.m_message ); + } +} + +void SAL_CALL Mapping_uno2cli( + uno_Mapping * mapping, void ** ppOut, + void * pIn, typelib_InterfaceTypeDescription * td ) + SAL_THROW_EXTERN_C() +{ + try + { + OSL_ENSURE( td && ppOut, "### null ptr!" ); + OSL_ENSURE( (sizeof(System::Char) == sizeof(sal_Unicode)) + && (sizeof(System::Boolean) == sizeof(sal_Bool)) + && (sizeof(System::SByte) == sizeof(sal_Int8)) + && (sizeof(System::Int16) == sizeof(sal_Int16)) + && (sizeof(System::UInt16) == sizeof(sal_uInt16)) + && (sizeof(System::Int32) == sizeof(sal_Int32)) + && (sizeof(System::UInt32) == sizeof(sal_uInt32)) + && (sizeof(System::Int64) == sizeof(sal_Int64)) + && (sizeof(System::UInt64) == sizeof(sal_uInt64)) + && (sizeof(System::Single) == sizeof(float)) + && (sizeof(System::Double) == sizeof(double)), + "[cli_uno bridge] incompatible .NET data types"); + intptr_t * ppDNetI = (intptr_t *)ppOut; + uno_Interface * pUnoI = (uno_Interface *)pIn; + + Mapping const * that = static_cast< Mapping const * >( mapping ); + Bridge * bridge = that->m_bridge; + + if (0 != *ppDNetI) + { + sri::GCHandle::FromIntPtr(IntPtr(ppDNetI)).Free(); + } + + if (0 != pUnoI) + { + System::Object^ cliI= bridge->map_uno2cli(pUnoI, td); + intptr_t ptr= NULL; + if(cliI) + { + ptr= sri::GCHandle::ToIntPtr(sri::GCHandle::Alloc(cliI)) +#ifdef _WIN64 + .ToInt64(); +#else /* defined(_WIN32) */ + .ToInt32(); +#endif + } + (*ppOut)= reinterpret_cast<void*>(ptr); + } + } + catch (BridgeRuntimeError & err) + { + (void) err; + SAL_WARN( "cli", "[cli_uno bridge error] " << err.m_message ); + } +} + + +void SAL_CALL Bridge_free( uno_Mapping * mapping ) + SAL_THROW_EXTERN_C() +{ + Mapping * that = static_cast< Mapping * >( mapping ); + delete that->m_bridge; +} + +} //extern C +} //namespace + +namespace cli_uno +{ + + +/** ToDo + I doubt that the case that the ref count raises from 0 to 1 + can occur. uno_ext_getMapping returns an acquired mapping. Every time + that function is called then a new mapping is created. Following the + rules of ref counted objects, then if the ref count is null no one has + a reference to the object anymore. Hence no one can call acquire. If someone + calls acquire then they must have kept an unacquired pointer which is + illegal. + */ +void Bridge::acquire() const +{ + if (1 == osl_atomic_increment( &m_ref )) + { + if (m_registered_cli2uno) + { + uno_Mapping * mapping = const_cast<Mapping*>(&m_cli2uno); + uno_registerMapping( + & const_cast<uno_Mapping*>(mapping), Bridge_free, m_uno_cli_env, (uno_Environment *)m_uno_env, 0 ); + } + else + { + uno_Mapping * mapping = const_cast<Mapping*>(&m_uno2cli); + uno_registerMapping( + &mapping, Bridge_free, (uno_Environment *)m_uno_env, m_uno_cli_env, 0 ); + } + } +} + +void Bridge::release() const +{ + if (! osl_atomic_decrement( &m_ref )) + { + uno_revokeMapping( + m_registered_cli2uno + ? const_cast<Mapping*>(&m_cli2uno) + : const_cast<Mapping*>(&m_uno2cli) ); + } +} + +Bridge::Bridge( + uno_Environment * uno_cli_env, uno_ExtEnvironment * uno_env, + bool registered_cli2uno ) + : m_ref( 1 ), + m_uno_env( uno_env ), + m_uno_cli_env( uno_cli_env ), + m_registered_cli2uno( registered_cli2uno ) +{ + OSL_ASSERT( 0 != m_uno_cli_env && 0 != m_uno_env ); + (*((uno_Environment *)m_uno_env)->acquire)( (uno_Environment *)m_uno_env ); + (*m_uno_cli_env->acquire)( m_uno_cli_env ); + + // cli2uno + m_cli2uno.acquire = Mapping_acquire; + m_cli2uno.release = Mapping_release; + m_cli2uno.mapInterface = Mapping_cli2uno; + m_cli2uno.m_bridge = this; + // uno2cli + m_uno2cli.acquire = Mapping_acquire; + m_uno2cli.release = Mapping_release; + m_uno2cli.mapInterface = Mapping_uno2cli; + m_uno2cli.m_bridge = this; + +} + + +Bridge::~Bridge() +{ + //System::GC::Collect(); + (*m_uno_cli_env->release)( m_uno_cli_env ); + (*((uno_Environment *)m_uno_env)->release)( (uno_Environment *)m_uno_env ); +} + + +} //namespace cli_uno + +extern "C" +{ + +namespace cli_uno +{ + +void SAL_CALL cli_env_disposing( uno_Environment * uno_cli_env ) + SAL_THROW_EXTERN_C() +{ + uno_cli_env->pContext = 0; +} + + +SAL_DLLPUBLIC_EXPORT void SAL_CALL uno_initEnvironment( uno_Environment * uno_cli_env ) + SAL_THROW_EXTERN_C() +{ + //ToDo: remove when compiled with .NET 2 + + // Unclear whether the above comment refers to this whole function + // or a call to __crt_dll_initialize() that used to be here for + // _MSC_VER < 1400 + + uno_cli_env->environmentDisposing= cli_env_disposing; + uno_cli_env->pExtEnv = 0; + //Set the console to print Trace messages +#if OSL_DEBUG_LEVEL >= 1 + System::Diagnostics::Trace::Listeners-> + Add( gcnew System::Diagnostics::TextWriterTraceListener(System::Console::Out)); +#endif + OSL_ASSERT( 0 == uno_cli_env->pContext ); + + // We let the Cli_environment leak, since there is no good point where we could destruct it. + //dispose is not used because we would have then also synchronize the calls to proxies. If the + //Cli_environment is disposed, we must prevent all calls, otherwise we may crash at points + //where g_cli_env is accessed. + //When we compile the bridge with .NET 2 then we can again hold g_cli_env as a static gcroot + //member in a unmanaged class, such as Bridge. + CliEnvHolder::g_cli_env = gcnew Cli_environment(); +} + +SAL_DLLPUBLIC_EXPORT void SAL_CALL uno_ext_getMapping( + uno_Mapping ** ppMapping, uno_Environment * pFrom, uno_Environment * pTo ) + SAL_THROW_EXTERN_C() +{ + OSL_ASSERT( 0 != ppMapping && 0 != pFrom && 0 != pTo ); + if (*ppMapping) + { + (*(*ppMapping)->release)( *ppMapping ); + *ppMapping = 0; + } + + + OUString const & from_env_typename = OUString::unacquired( + &pFrom->pTypeName ); + OUString const & to_env_typename = OUString::unacquired( &pTo->pTypeName ); + + uno_Mapping * mapping = 0; + + try + { + if ( from_env_typename == UNO_LB_CLI && to_env_typename == UNO_LB_UNO ) + { + Bridge * bridge = new Bridge( pFrom, pTo->pExtEnv, true ); // ref count = 1 + mapping = &bridge->m_cli2uno; + uno_registerMapping( + &mapping, Bridge_free, pFrom, (uno_Environment *)pTo->pExtEnv, 0 ); + } + else if ( from_env_typename == UNO_LB_UNO && to_env_typename == UNO_LB_CLI ) + { + Bridge * bridge = new Bridge( pTo, pFrom->pExtEnv, false ); // ref count = 1 + mapping = &bridge->m_uno2cli; + uno_registerMapping( + &mapping, Bridge_free, (uno_Environment *)pFrom->pExtEnv, pTo, 0 ); + } + } + catch (BridgeRuntimeError & err) + { + (void) err; + SAL_WARN( "cli", "[cli_uno bridge error] " << err.m_message ); + } + *ppMapping = mapping; +} + +} +} + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |