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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 <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: */
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