diff options
Diffstat (limited to 'cli_ure/source/uno_bridge/cli_uno.cxx')
| -rw-r--r-- | cli_ure/source/uno_bridge/cli_uno.cxx | 277 |
1 files changed, 277 insertions, 0 deletions
diff --git a/cli_ure/source/uno_bridge/cli_uno.cxx b/cli_ure/source/uno_bridge/cli_uno.cxx new file mode 100644 index 000000000..6af17e065 --- /dev/null +++ b/cli_ure/source/uno_bridge/cli_uno.cxx @@ -0,0 +1,277 @@ +/* -*- 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 <memory> +#include <sal/alloca.h> +#include <osl/diagnose.h> +#include "rtl/ustrbuf.hxx" +#include "cli_base.h" +#include "cli_bridge.h" + +namespace sr=System::Reflection; + + +namespace cli_uno +{ + +union largest +{ + sal_Int64 n; + double d; + void * p; + uno_Any a; +}; + +System::Object^ Bridge::call_uno(uno_Interface * pUnoI, + typelib_TypeDescription* member_td, + typelib_TypeDescriptionReference * return_type, + sal_Int32 nParams, typelib_MethodParameter const * pParams, + array<System::Object^>^ args, array<System::Type^>^ argTypes, + System::Object^* ppExc) const +{ + // return mem + sal_Int32 return_size = sizeof (largest); + if ((0 != return_type) && + (typelib_TypeClass_STRUCT == return_type->eTypeClass || + typelib_TypeClass_EXCEPTION == return_type->eTypeClass)) + { + TypeDescr return_td( return_type ); + if (return_td.get()->nSize > sizeof (largest)) + return_size = return_td.get()->nSize; + } + //Prepare memory that contains all converted arguments and return value + //The memory block contains first pointers to the arguments which are in the same block + // For example, 2 arguments, 1 ret. + // + // | Pointer + // | Pointer + // | Return value + // | Arg 1 + // | Arg 2 + // + // If an argument is larger then union largest, such as some structures, then the pointer + // points to an extra block of memory. The same goes for a big return value. + + char * mem = (char *)alloca( + (nParams * sizeof (void *)) + return_size + (nParams * sizeof (largest)) ); + //array of pointers to args + void ** uno_args = (void **)mem; + //If an attribute is set, then uno_ret must be null, e.g void setAttribute(int ) + void * uno_ret= NULL; + if ( !(member_td->eTypeClass == typelib_TypeClass_INTERFACE_ATTRIBUTE && nParams == 1)) + uno_ret = (mem + (nParams * sizeof (void *))); + largest * uno_args_mem = (largest *)(mem + (nParams * sizeof (void *)) + return_size); + + OSL_ASSERT( (0 == nParams) || (nParams == args->Length) ); + for ( sal_Int32 nPos = 0; nPos < nParams; ++nPos ) + { + typelib_MethodParameter const & param = pParams[ nPos ]; + typelib_TypeDescriptionReference * type = param.pTypeRef; + + uno_args[ nPos ] = &uno_args_mem[ nPos ]; + if (typelib_TypeClass_STRUCT == type->eTypeClass || + typelib_TypeClass_EXCEPTION == type->eTypeClass) + { + TypeDescr td( type ); + if (td.get()->nSize > sizeof (largest)) + uno_args[ nPos ] = alloca( td.get()->nSize ); + } + + if (param.bIn) + { + try + { + // in, in/out params + map_to_uno( + uno_args[ nPos ],args[nPos] , type, false /* no assign */); + } + catch (...) + { + // cleanup uno in args + for (sal_Int32 n = 0; n < nPos; ++n) + { + typelib_MethodParameter const & param = pParams[n]; + if (param.bIn) + { + uno_type_destructData(uno_args[n], param.pTypeRef, 0); + } + } + throw; + } + } + } + uno_Any uno_exc_holder; + uno_Any * uno_exc = &uno_exc_holder; + // call binary uno + + (*pUnoI->pDispatcher)( pUnoI, member_td, uno_ret, uno_args, &uno_exc ); + + if (0 == uno_exc) + { + // convert out args; destruct uno args + for ( sal_Int32 nPos = 0; nPos < nParams; ++nPos ) + { + typelib_MethodParameter const & param = pParams[ nPos ]; + typelib_TypeDescriptionReference * type = param.pTypeRef; + if (param.bOut) + { + try + { + pin_ptr<System::Object^> ptr = &args[nPos]; + map_to_cli( + ptr, uno_args[nPos], param.pTypeRef, + argTypes != nullptr ? argTypes[nPos] : nullptr, false ); + } + catch (...) + { + // cleanup further uno args + for ( sal_Int32 n = nPos; n < nParams; ++n ) + { + uno_type_destructData( uno_args[n], pParams[n].pTypeRef, 0 ); + } + // cleanup uno return value + uno_type_destructData( uno_ret, return_type, 0 ); + throw; + } + } + //cleanup args + if (typelib_TypeClass_DOUBLE < type->eTypeClass && + typelib_TypeClass_ENUM != type->eTypeClass) // opt + { + uno_type_destructData(uno_args[nPos], type, 0); + } + } + + if ((0 != return_type) && + (typelib_TypeClass_VOID != return_type->eTypeClass)) + { + // convert uno return value + try + { + System::Object^ cli_ret; + map_to_cli( + &cli_ret, uno_ret, return_type, nullptr, false); + uno_type_destructData(uno_ret, return_type, 0); + return cli_ret; + } + catch (...) + { + uno_type_destructData(uno_ret, return_type, 0); + throw; + } + } + return nullptr; // void return + } + else // exception occurred + { + // destruct uno in args + for ( sal_Int32 nPos = 0; nPos < nParams; ++nPos ) + { + typelib_MethodParameter const & param = pParams[ nPos ]; + if (param.bIn) + { + uno_type_destructData( uno_args[ nPos ], param.pTypeRef, 0 ); + } + } + map_to_cli(ppExc, uno_exc_holder.pData, + uno_exc_holder.pType, nullptr, false); + return nullptr; + } +} + +void Bridge::call_cli( + System::Object^ cliI, + sr::MethodInfo^ method, + typelib_TypeDescriptionReference * return_type, + typelib_MethodParameter * params, int nParams, + void * uno_ret, void * uno_args [], uno_Any ** uno_exc ) const +{ + array<System::Object^>^ args= gcnew array<System::Object^>(nParams); + for (int nPos= 0; nPos < nParams; nPos++) + { + typelib_MethodParameter const & param= params[nPos]; + if (param.bIn) + { + pin_ptr<System::Object^> ptr = &args[nPos]; + map_to_cli( ptr, + uno_args[nPos], param.pTypeRef, nullptr, false); + } + } + System::Object^ retInvoke= nullptr; + try + { + retInvoke= method->Invoke(cliI, args); + } + catch (sr::TargetInvocationException^ e) + { + System::Exception^ exc= e->InnerException; + css::uno::TypeDescription td(mapCliType(exc->GetType())); + // memory for exception + std::unique_ptr< rtl_mem > memExc(rtl_mem::allocate(td.get()->nSize)); + map_to_uno(memExc.get(), exc, td.get()->pWeakRef, false); + (*uno_exc)->pType= td.get()->pWeakRef; + (*uno_exc)->pData= memExc.release(); + return; + } + catch (System::Exception^ e) + { + throw BridgeRuntimeError("Unexpected exception during invocation of cli object. Original message is: \n" + mapCliString(e->Message)); + } + + //convert out, in/out params + for (int nPos = 0; nPos < nParams; ++nPos ) + { + typelib_MethodParameter const & param = params[ nPos ]; + + if (param.bOut) + { + try + { + map_to_uno( + uno_args[ nPos ], args[ nPos ], param.pTypeRef, + sal_True == param.bIn /* assign if inout */); + // out array + } + catch (...) + { + // cleanup uno pure out + for ( sal_Int32 n = 0; n < nPos; ++n ) + { + typelib_MethodParameter const & param = params[ n ]; + if (! param.bIn) + uno_type_destructData( uno_args[ n ], param.pTypeRef, 0 ); + } + throw; + } + } + } + // return value + if (0 != return_type) + { + map_to_uno( + uno_ret, retInvoke, return_type, false /* no assign */); + } + // no exception occurred + *uno_exc = 0; +} + + +} + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |