/**************************************************************
*
* 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
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*
*************************************************************/
#include <malloc.h>
#include <hash_map>
#include <rtl/alloc.h>
#include <osl/mutex.hxx>
#include <com/sun/star/uno/genfunc.hxx>
#include "com/sun/star/uno/RuntimeException.hpp"
#include <uno/data.h>
#include <typelib/typedescription.hxx>
#include "bridges/cpp_uno/shared/bridge.hxx"
#include "bridges/cpp_uno/shared/cppinterfaceproxy.hxx"
#include "bridges/cpp_uno/shared/types.hxx"
#include "bridges/cpp_uno/shared/vtablefactory.hxx"
#include "share.hxx"
#include <dlfcn.h>
using namespace ::osl;
using namespace ::rtl;
using namespace ::com::sun::star::uno;
namespace
{
static typelib_TypeClass cpp2uno_call(
bridges::cpp_uno::shared::CppInterfaceProxy* pThis,
const typelib_TypeDescription * pMemberTypeDescr,
typelib_TypeDescriptionReference * pReturnTypeRef,
sal_Int32 nParams, typelib_MethodParameter * pParams,
long r8, void ** pCallStack,
sal_Int64 * pRegisterReturn /* space for register return */ )
{
// pCallStack: ret, [return ptr], this, params
char * pTopStack = (char *)(pCallStack + 0);
char * pCppStack = pTopStack;
#ifdef CMC_DEBUG
fprintf(stderr, "cpp2uno_call\n");
#endif
// return
typelib_TypeDescription * pReturnTypeDescr = 0;
if (pReturnTypeRef)
TYPELIB_DANGER_GET( &pReturnTypeDescr, pReturnTypeRef );
void * pUnoReturn = 0;
// complex return ptr: if != 0 && != pUnoReturn, reconversion need
void * pCppReturn = 0;
if (pReturnTypeDescr)
{
if (bridges::cpp_uno::shared::isSimpleType( pReturnTypeDescr ))
{
#ifdef CMC_DEBUG
fprintf(stderr, "simple return\n");
#endif
pUnoReturn = pRegisterReturn; // direct way for simple types
}
else // complex return via ptr (pCppReturn)
{
#ifdef CMC_DEBUG
fprintf(stderr, "complex return\n");
#endif
pCppReturn = (void *)r8;
pUnoReturn = (bridges::cpp_uno::shared::relatesToInterfaceType( pReturnTypeDescr )
? alloca( pReturnTypeDescr->nSize )
: pCppReturn); // direct way
}
}
// pop this
pCppStack += sizeof( void* );
// stack space
OSL_ENSURE( sizeof(void *) == sizeof(sal_Int32),
"### unexpected size!" );
// parameters
void ** pUnoArgs = (void **)alloca( 4 * sizeof(void *) * nParams );
void ** pCppArgs = pUnoArgs + nParams;
// indizes of values this have to be converted (interface conversion
// cpp<=>uno)
sal_Int32 * pTempIndizes = (sal_Int32 *)(pUnoArgs + (2 * nParams));
// type descriptions for reconversions
typelib_TypeDescription ** ppTempParamTypeDescr =
(typelib_TypeDescription **)(pUnoArgs + (3 * nParams));
sal_Int32 nTempIndizes = 0;
for ( sal_Int32 nPos = 0; nPos < nParams; ++nPos )
{
const typelib_MethodParameter & rParam = pParams[nPos];
typelib_TypeDescription * pParamTypeDescr = 0;
TYPELIB_DANGER_GET( &pParamTypeDescr, rParam.pTypeRef );
if (!rParam.bOut &&
bridges::cpp_uno::shared::isSimpleType( pParamTypeDescr ))
{
switch (pParamTypeDescr->eTypeClass)
{
case typelib_TypeClass_BYTE:
case typelib_TypeClass_BOOLEAN:
pCppArgs[nPos] = pCppStack + 3;
pUnoArgs[nPos] = pCppStack + 3;
break;
case typelib_TypeClass_CHAR:
case typelib_TypeClass_SHORT:
case typelib_TypeClass_UNSIGNED_SHORT:
pCppArgs[nPos] = pCppStack + 2;
pUnoArgs[nPos] = pCppStack + 2;
break;
case typelib_TypeClass_HYPER:
case typelib_TypeClass_UNSIGNED_HYPER:
case typelib_TypeClass_DOUBLE:
pCppArgs[nPos] = pCppStack;
pUnoArgs[nPos] = pCppStack;
pCppStack += sizeof(sal_Int32); // extra long
break;
default:
pCppArgs[nPos] = pCppStack;
pUnoArgs[nPos] = pCppStack;
break;
}
// no longer needed
TYPELIB_DANGER_RELEASE( pParamTypeDescr );
}
else // ptr to complex value | ref
{
pCppArgs[nPos] = *(void **)pCppStack;
if (! rParam.bIn) // is pure out
{
// uno out is unconstructed mem!
pUnoArgs[nPos] = alloca( pParamTypeDescr->nSize );
pTempIndizes[nTempIndizes] = nPos;
// will be released at reconversion
ppTempParamTypeDescr[nTempIndizes++] = pParamTypeDescr;
}
// is in/inout
else if (bridges::cpp_uno::shared::relatesToInterfaceType(
pParamTypeDescr ))
{
uno_copyAndConvertData( pUnoArgs[nPos] = alloca( pParamTypeDescr->nSize ),
*(void **)pCppStack, pParamTypeDescr,
pThis->getBridge()->getCpp2Uno() );
pTempIndizes[nTempIndizes] = nPos; // has to be reconverted
// will be released at reconversion
ppTempParamTypeDescr[nTempIndizes++] = pParamTypeDescr;
}
else // direct way
{
pUnoArgs[nPos] = *(void **)pCppStack;
// no longer needed
TYPELIB_DANGER_RELEASE( pParamTypeDescr );
}
}
pCppStack += sizeof(sal_Int32); // standard parameter length
}
// ExceptionHolder
uno_Any aUnoExc; // Any will be constructed by callee
uno_Any * pUnoExc = &aUnoExc;
#ifdef CMC_DEBUG
fprintf(stderr, "before dispatch\n");
#endif
// invoke uno dispatch call
(*pThis->getUnoI()->pDispatcher)(
pThis->getUnoI(), pMemberTypeDescr, pUnoReturn, pUnoArgs, &pUnoExc );
#ifdef CMC_DEBUG
fprintf(stderr, "after dispatch\n");
#endif
// in case an exception occured...
if (pUnoExc)
{
// destruct temporary in/inout params
for ( ; nTempIndizes--; )
{
sal_Int32 nIndex = pTempIndizes[nTempIndizes];
if (pParams[nIndex].bIn) // is in/inout => was constructed
uno_destructData( pUnoArgs[nIndex],
ppTempParamTypeDescr[nTempIndizes], 0 );
TYPELIB_DANGER_RELEASE( ppTempParamTypeDescr[nTempIndizes] );
}
if (pReturnTypeDescr)
TYPELIB_DANGER_RELEASE( pReturnTypeDescr );
CPPU_CURRENT_NAMESPACE::raiseException( &aUnoExc,
pThis->getBridge()->getUno2Cpp() ); // has to destruct the any
// is here for dummy
return typelib_TypeClass_VOID;
}
else // else no exception occured...
{
// temporary params
for ( ; nTempIndizes--; )
{
sal_Int32 nIndex = pTempIndizes[nTempIndizes];
typelib_TypeDescription * pParamTypeDescr =
ppTempParamTypeDescr[nTempIndizes];
if (pParams[nIndex].bOut) // inout/out
{
// convert and assign
uno_destructData( pCppArgs[nIndex], pParamTypeDescr,
cpp_release );
uno_copyAndConvertData( pCppArgs[nIndex], pUnoArgs[nIndex],
pParamTypeDescr, pThis->getBridge()->getUno2Cpp() );
}
// destroy temp uno param
uno_destructData( pUnoArgs[nIndex], pParamTypeDescr, 0 );
TYPELIB_DANGER_RELEASE( pParamTypeDescr );
}
// return
if (pCppReturn) // has complex return
{
if (pUnoReturn != pCppReturn) // needs reconversion
{
uno_copyAndConvertData( pCppReturn, pUnoReturn,
pReturnTypeDescr, pThis->getBridge()->getUno2Cpp() );
// destroy temp uno return
uno_destructData( pUnoReturn, pReturnTypeDescr, 0 );
}
// complex return ptr is set to return reg
*(void **)pRegisterReturn = pCppReturn;
}
if (pReturnTypeDescr)
{
typelib_TypeClass eRet =
(typelib_TypeClass)pReturnTypeDescr->eTypeClass;
TYPELIB_DANGER_RELEASE( pReturnTypeDescr );
return eRet;
}
else
return typelib_TypeClass_VOID;
}
}
//=====================================================================
static typelib_TypeClass cpp_mediate(
sal_Int32 nFunctionIndex, sal_Int32 nVtableOffset,
long sp, long r8,
sal_Int64 * pRegisterReturn /* space for register return */ )
{
void ** pCallStack = (void**)(sp);
#ifdef CMC_DEBUG
fprintf(stderr, "cpp_mediate with\n");
fprintf(stderr, "%x %x\n", nFunctionIndex, nVtableOffset);
fprintf(stderr, "and %x %x\n", pCallStack, pRegisterReturn);
fprintf(stderr, "and %x %x\n", pCallStack[0], pCallStack[1]);
#endif
OSL_ENSURE( sizeof(sal_Int32)==sizeof(void *), "### unexpected!" );
void *pThis = pCallStack[0];
pThis = static_cast< char * >(pThis) - nVtableOffset;
bridges::cpp_uno::shared::CppInterfaceProxy * pCppI =
bridges::cpp_uno::shared::CppInterfaceProxy::castInterfaceToProxy(
pThis);
typelib_InterfaceTypeDescription * pTypeDescr = pCppI->getTypeDescr();
OSL_ENSURE( nFunctionIndex < pTypeDescr->nMapFunctionIndexToMemberIndex,
"### illegal vtable index!" );
if (nFunctionIndex >= pTypeDescr->nMapFunctionIndexToMemberIndex)
{
throw RuntimeException(
OUString::createFromAscii("illegal vtable index!"),
(XInterface *)pCppI );
}
// determine called method
OSL_ENSURE( nFunctionIndex < pTypeDescr->nMapFunctionIndexToMemberIndex,
"### illegal vtable index!" );
sal_Int32 nMemberPos =
pTypeDescr->pMapFunctionIndexToMemberIndex[nFunctionIndex];
OSL_ENSURE( nMemberPos < pTypeDescr->nAllMembers,
"### illegal member index!" );
TypeDescription aMemberDescr( pTypeDescr->ppAllMembers[nMemberPos] );
typelib_TypeClass eRet;
switch (aMemberDescr.get()->eTypeClass)
{
case typelib_TypeClass_INTERFACE_ATTRIBUTE:
{
if (pTypeDescr->pMapMemberIndexToFunctionIndex[nMemberPos] ==
nFunctionIndex)
{
// is GET method
eRet = cpp2uno_call(
pCppI, aMemberDescr.get(),
((typelib_InterfaceAttributeTypeDescription *)aMemberDescr.get())->pAttributeTypeRef,
0, 0, // no params
r8, pCallStack, pRegisterReturn );
}
else
{
// is SET method
typelib_MethodParameter aParam;
aParam.pTypeRef =
((typelib_InterfaceAttributeTypeDescription *)aMemberDescr.get())->pAttributeTypeRef;
aParam.bIn = sal_True;
aParam.bOut = sal_False;
eRet = cpp2uno_call(
pCppI, aMemberDescr.get(),
0, // indicates void return
1, &aParam,
r8, pCallStack, pRegisterReturn );
}
break;
}
case typelib_TypeClass_INTERFACE_METHOD:
{
// is METHOD
switch (nFunctionIndex)
{
case 1: // acquire()
pCppI->acquireProxy(); // non virtual call!
eRet = typelib_TypeClass_VOID;
break;
case 2: // release()
pCppI->releaseProxy(); // non virtual call!
eRet = typelib_TypeClass_VOID;
break;
case 0: // queryInterface() opt
{
typelib_TypeDescription * pTD = 0;
TYPELIB_DANGER_GET(&pTD,
reinterpret_cast<Type *>(pCallStack[1])->getTypeLibType());
if (pTD)
{
XInterface * pInterface = 0;
(*pCppI->getBridge()->getCppEnv()->getRegisteredInterface)(
pCppI->getBridge()->getCppEnv(),
(void **)&pInterface, pCppI->getOid().pData,
(typelib_InterfaceTypeDescription *)pTD );
if (pInterface)
{
::uno_any_construct(
reinterpret_cast< uno_Any * >( r8 ),
&pInterface, pTD, cpp_acquire );
pInterface->release();
TYPELIB_DANGER_RELEASE( pTD );
*(void **)pRegisterReturn = (void*)r8;
eRet = typelib_TypeClass_ANY;
break;
}
TYPELIB_DANGER_RELEASE( pTD );
}
} // else perform queryInterface()
default:
eRet = cpp2uno_call(
pCppI, aMemberDescr.get(),
((typelib_InterfaceMethodTypeDescription *)aMemberDescr.get())->pReturnTypeRef,
((typelib_InterfaceMethodTypeDescription *)aMemberDescr.get())->nParams,
((typelib_InterfaceMethodTypeDescription *)aMemberDescr.get())->pParams,
r8, pCallStack, pRegisterReturn );
}
break;
}
default:
{
throw RuntimeException(
OUString::createFromAscii("no member description found!"),
(XInterface *)pCppI );
// is here for dummy
eRet = typelib_TypeClass_VOID;
}
}
return eRet;
}
}
//=======================================================================
/**
* is called on incoming vtable calls
* (called by asm snippets)
*/
extern "C" sal_Int64 cpp_vtable_call( long firstonstack )
{
register long d0 asm("d0");
long functionIndex = d0;
register long a1 asm("a1");
long r8 = a1;
register long d1 asm("d1");
long vtableOffset = d1;
long sp = (long)&firstonstack;
sal_Int64 nRegReturn;
cpp_mediate( functionIndex, vtableOffset, sp, r8, &nRegReturn );
return nRegReturn;
}
namespace
{
const int codeSnippetSize = 20;
//some m68k info : http://www2.biglobe.ne.jp/~inaba/trampolines.html
unsigned char *codeSnippet(unsigned char* code, sal_Int32 functionIndex,
sal_Int32 vtableOffset)
{
unsigned char * p = code;
*(short *)&p[0] = 0x203C; //movel functionIndex,d0
*(long *)&p[2] = functionIndex;
*(short *)&p[6] = 0x223C; //movel functionIndex,d1
*(long *)&p[8] = vtableOffset;
*(short *)&p[12] = 0x4EF9; //jmp cpp_vtable_call
*(long *)&p[14] = (long)&cpp_vtable_call;
*(short *)&p[18] = 0x4E71; //nop
return code + codeSnippetSize;
}
}
struct bridges::cpp_uno::shared::VtableFactory::Slot { void * fn; };
bridges::cpp_uno::shared::VtableFactory::Slot *
bridges::cpp_uno::shared::VtableFactory::mapBlockToVtable(void * block)
{
return static_cast< Slot * >(block) + 2;
}
sal_Size bridges::cpp_uno::shared::VtableFactory::getBlockSize(
sal_Int32 slotCount)
{
return (slotCount + 2) * sizeof (Slot) + slotCount * codeSnippetSize;
}
bridges::cpp_uno::shared::VtableFactory::Slot *
bridges::cpp_uno::shared::VtableFactory::initializeBlock(
void * block, sal_Int32 slotCount)
{
Slot * slots = mapBlockToVtable(block);
slots[-2].fn = 0;
slots[-1].fn = 0;
return slots + slotCount;
}
unsigned char * bridges::cpp_uno::shared::VtableFactory::addLocalFunctions(
Slot ** slots, unsigned char * code, sal_PtrDiff writetoexecdiff,
typelib_InterfaceTypeDescription const * type, sal_Int32 functionOffset,
sal_Int32 functionCount, sal_Int32 vtableOffset)
{
(*slots) -= functionCount;
Slot * s = *slots;
for (sal_Int32 i = 0; i < type->nMembers; ++i)
{
typelib_TypeDescription * member = 0;
TYPELIB_DANGER_GET(&member, type->ppMembers[i]);
OSL_ASSERT(member != 0);
switch (member->eTypeClass)
{
case typelib_TypeClass_INTERFACE_ATTRIBUTE:
// Getter:
(s++)->fn = code + writetoexecdiff;
code = codeSnippet(code, functionOffset++, vtableOffset);
// Setter:
if (!reinterpret_cast<
typelib_InterfaceAttributeTypeDescription * >(
member)->bReadOnly)
{
(s++)->fn = code + writetoexecdiff;
code = codeSnippet(code, functionOffset++, vtableOffset);
}
break;
case typelib_TypeClass_INTERFACE_METHOD:
{
(s++)->fn = code + writetoexecdiff;
typelib_InterfaceMethodTypeDescription *pMethodTD =
reinterpret_cast<
typelib_InterfaceMethodTypeDescription * >(member);
bool issimple = bridges::cpp_uno::shared::isSimpleType(
pMethodTD->pReturnTypeRef);
code = codeSnippet(code, functionOffset++, vtableOffset);
break;
}
default:
OSL_ASSERT(false);
break;
}
TYPELIB_DANGER_RELEASE(member);
}
return code;
}
void bridges::cpp_uno::shared::VtableFactory::flushCode(
unsigned char const * /*beg*/, unsigned char const * /*end*/)
{
}
/* vi:set tabstop=4 shiftwidth=4 expandtab: */