office-gobmx/bridges/source/cpp_uno/gcc3_netbsd_intel/cpp2uno.cxx

563 lines
20 KiB
C++

/*************************************************************************
*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* Copyright 2000, 2010 Oracle and/or its affiliates.
*
* OpenOffice.org - a multi-platform office productivity suite
*
* This file is part of OpenOffice.org.
*
* OpenOffice.org is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License version 3
* only, as published by the Free Software Foundation.
*
* OpenOffice.org is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License version 3 for more details
* (a copy is included in the LICENSE file that accompanied this code).
*
* You should have received a copy of the GNU Lesser General Public License
* version 3 along with OpenOffice.org. If not, see
* <http://www.openoffice.org/license.html>
* for a copy of the LGPLv3 License.
*
************************************************************************/
// MARKER(update_precomp.py): autogen include statement, do not remove
#include "precompiled_bridges.hxx"
#include <hash_map>
#include <sal/alloca.h>
#include <rtl/alloc.h>
#include <osl/mutex.hxx>
#include <uno/data.h>
#include <typelib/typedescription.hxx>
#include <bridges/cpp_uno/bridge.hxx>
#include <bridges/cpp_uno/type_misc.hxx>
#include "share.hxx"
using namespace ::osl;
using namespace ::rtl;
using namespace ::com::sun::star::uno;
namespace CPPU_CURRENT_NAMESPACE
{
//==================================================================================================
rtl_StandardModuleCount g_moduleCount = MODULE_COUNT_INIT;
//==================================================================================================
static typelib_TypeClass cpp2uno_call(
cppu_cppInterfaceProxy * pThis,
const typelib_TypeDescription * pMemberTypeDescr,
typelib_TypeDescriptionReference * pReturnTypeRef, // 0 indicates void return
sal_Int32 nParams, typelib_MethodParameter * pParams,
void ** pCallStack,
sal_Int64 * pRegisterReturn /* space for register return */ )
{
// pCallStack: ret, [return ptr], this, params
char * pCppStack = (char *)(pCallStack +1);
// return
typelib_TypeDescription * pReturnTypeDescr = 0;
if (pReturnTypeRef)
TYPELIB_DANGER_GET( &pReturnTypeDescr, pReturnTypeRef );
void * pUnoReturn = 0;
void * pCppReturn = 0; // complex return ptr: if != 0 && != pUnoReturn, reconversion need
if (pReturnTypeDescr)
{
if (cppu_isSimpleType( pReturnTypeDescr ))
{
pUnoReturn = pRegisterReturn; // direct way for simple types
}
else // complex return via ptr (pCppReturn)
{
pCppReturn = *(void **)pCppStack;
pCppStack += sizeof(void *);
pUnoReturn = (cppu_relatesToInterface( 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 && cppu_isSimpleType( pParamTypeDescr )) // value
{
pCppArgs[nPos] = pCppStack;
pUnoArgs[nPos] = pCppStack;
switch (pParamTypeDescr->eTypeClass)
{
case typelib_TypeClass_HYPER:
case typelib_TypeClass_UNSIGNED_HYPER:
case typelib_TypeClass_DOUBLE:
pCppStack += sizeof(sal_Int32); // extra long
}
// 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 (cppu_relatesToInterface( pParamTypeDescr ))
{
uno_copyAndConvertData( pUnoArgs[nPos] = alloca( pParamTypeDescr->nSize ),
*(void **)pCppStack, pParamTypeDescr,
&pThis->pBridge->aCpp2Uno );
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;
// invoke uno dispatch call
(*pThis->pUnoI->pDispatcher)( pThis->pUnoI, pMemberTypeDescr, pUnoReturn, pUnoArgs, &pUnoExc );
// 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 );
raiseException( &aUnoExc, &pThis->pBridge->aUno2Cpp ); // 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->pBridge->aUno2Cpp );
}
// 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->pBridge->aUno2Cpp );
// destroy temp uno return
uno_destructData( pUnoReturn, pReturnTypeDescr, 0 );
}
// complex return ptr is set to eax
*(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 nVtableCall,
void ** pCallStack,
sal_Int64 * pRegisterReturn /* space for register return */ )
{
OSL_ENSURE( sizeof(sal_Int32)==sizeof(void *), "### unexpected!" );
// pCallStack: ret adr, [ret *], this, params
// _this_ ptr is patched cppu_XInterfaceProxy object
cppu_cppInterfaceProxy * pCppI = NULL;
if( nVtableCall & 0x80000000 )
{
nVtableCall &= 0x7fffffff;
pCppI = (cppu_cppInterfaceProxy *)(XInterface *)*(pCallStack +2);
}
else
{
pCppI = (cppu_cppInterfaceProxy *)(XInterface *)*(pCallStack +1);
}
typelib_InterfaceTypeDescription * pTypeDescr = pCppI->pTypeDescr;
OSL_ENSURE( nVtableCall < pTypeDescr->nMapFunctionIndexToMemberIndex, "### illegal vtable index!" );
if (nVtableCall >= pTypeDescr->nMapFunctionIndexToMemberIndex)
{
throw RuntimeException(
OUString::createFromAscii("illegal vtable index!"),
(XInterface *)pCppI );
}
// determine called method
OSL_ENSURE( nVtableCall < pTypeDescr->nMapFunctionIndexToMemberIndex, "### illegal vtable index!" );
sal_Int32 nMemberPos = pTypeDescr->pMapFunctionIndexToMemberIndex[nVtableCall];
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] == nVtableCall)
{
// is GET method
eRet = cpp2uno_call(
pCppI, aMemberDescr.get(),
((typelib_InterfaceAttributeTypeDescription *)aMemberDescr.get())->pAttributeTypeRef,
0, 0, // no params
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,
pCallStack, pRegisterReturn );
}
break;
}
case typelib_TypeClass_INTERFACE_METHOD:
{
// is METHOD
switch (nVtableCall)
{
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[3] )->getTypeLibType() );
if (pTD)
{
XInterface * pInterface = 0;
(*pCppI->pBridge->pCppEnv->getRegisteredInterface)(
pCppI->pBridge->pCppEnv,
(void **)&pInterface, pCppI->oid.pData, (typelib_InterfaceTypeDescription *)pTD );
if (pInterface)
{
::uno_any_construct(
reinterpret_cast< uno_Any * >( pCallStack[1] ),
&pInterface, pTD, cpp_acquire );
pInterface->release();
TYPELIB_DANGER_RELEASE( pTD );
*(void **)pRegisterReturn = pCallStack[1];
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,
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)
*/
static void cpp_vtable_call( int nTableEntry, void** pCallStack ) __attribute__((regparm(2)));
void cpp_vtable_call( int nTableEntry, void** pCallStack )
{
volatile long nRegReturn[2];
typelib_TypeClass aType = cpp_mediate( nTableEntry, pCallStack, (sal_Int64*)nRegReturn );
switch( aType )
{
case typelib_TypeClass_HYPER:
case typelib_TypeClass_UNSIGNED_HYPER:
__asm__( "movl %1, %%edx\n\t"
"movl %0, %%eax\n"
: : "m"(nRegReturn[0]), "m"(nRegReturn[1]) );
break;
case typelib_TypeClass_FLOAT:
__asm__( "flds %0\n\t"
"fstp %%st(0)\n\t"
"flds %0\n"
: : "m"(*(float *)nRegReturn) );
break;
case typelib_TypeClass_DOUBLE:
__asm__( "fldl %0\n\t"
"fstp %%st(0)\n\t"
"fldl %0\n"
: : "m"(*(double *)nRegReturn) );
break;
// case typelib_TypeClass_UNSIGNED_SHORT:
// case typelib_TypeClass_SHORT:
// __asm__( "movswl %0, %%eax\n"
// : : "m"(nRegReturn) );
// break;
default:
__asm__( "movl %0, %%eax\n"
: : "m"(nRegReturn[0]) );
break;
}
}
//==================================================================================================
class MediateClassData
{
typedef ::std::hash_map< OUString, void *, OUStringHash > t_classdata_map;
t_classdata_map m_map;
Mutex m_mutex;
public:
void const * get_vtable( typelib_InterfaceTypeDescription * pTD ) SAL_THROW( () );
inline MediateClassData() SAL_THROW( () )
{}
~MediateClassData() SAL_THROW( () );
};
//__________________________________________________________________________________________________
MediateClassData::~MediateClassData() SAL_THROW( () )
{
OSL_TRACE( "> calling ~MediateClassData(): freeing mediate vtables." );
for ( t_classdata_map::const_iterator iPos( m_map.begin() ); iPos != m_map.end(); ++iPos )
{
::rtl_freeMemory( iPos->second );
}
}
//--------------------------------------------------------------------------------------------------
static inline void codeSnippet( char * code, sal_uInt32 vtable_pos, bool simple_ret_type ) SAL_THROW( () )
{
if (! simple_ret_type)
vtable_pos |= 0x80000000;
OSL_ASSERT( sizeof (long) == 4 );
// mov $nPos, %eax
*code++ = 0xb8;
*(long *)code = vtable_pos;
code += sizeof (long);
// mov %esp, %edx
*code++ = 0x89;
*code++ = 0xe2;
// jmp cpp_vtable_call
*code++ = 0xe9;
*(long *)code = ((char *)cpp_vtable_call) - code - sizeof (long);
}
//__________________________________________________________________________________________________
void const * MediateClassData::get_vtable( typelib_InterfaceTypeDescription * pTD ) SAL_THROW( () )
{
void * buffer;
// avoiding locked counts
OUString const & unoName = *(OUString const *)&((typelib_TypeDescription *)pTD)->pTypeName;
{
MutexGuard aGuard( m_mutex );
t_classdata_map::const_iterator iFind( m_map.find( unoName ) );
if (iFind == m_map.end())
{
// create new vtable
sal_Int32 nSlots = pTD->nMapFunctionIndexToMemberIndex;
buffer = ::rtl_allocateMemory( ((2+ nSlots) * sizeof (void *)) + (nSlots *20) );
::std::pair< t_classdata_map::iterator, bool > insertion(
m_map.insert( t_classdata_map::value_type( unoName, buffer ) ) );
OSL_ENSURE( insertion.second, "### inserting new vtable buffer failed?!" );
void ** slots = (void **)buffer;
*slots++ = 0;
*slots++ = 0; // rtti
char * code = (char *)(slots + nSlots);
sal_uInt32 vtable_pos = 0;
sal_Int32 nAllMembers = pTD->nAllMembers;
typelib_TypeDescriptionReference ** ppAllMembers = pTD->ppAllMembers;
for ( sal_Int32 nPos = 0; nPos < nAllMembers; ++nPos )
{
typelib_TypeDescription * pTD = 0;
TYPELIB_DANGER_GET( &pTD, ppAllMembers[ nPos ] );
OSL_ASSERT( pTD );
if (typelib_TypeClass_INTERFACE_ATTRIBUTE == pTD->eTypeClass)
{
bool simple_ret = cppu_isSimpleType(
((typelib_InterfaceAttributeTypeDescription *)pTD)->pAttributeTypeRef->eTypeClass );
// get method
*slots++ = code;
codeSnippet( code, vtable_pos++, simple_ret );
code += 20;
if (! ((typelib_InterfaceAttributeTypeDescription *)pTD)->bReadOnly)
{
// set method
*slots++ = code;
codeSnippet( code, vtable_pos++, true );
code += 20;
}
}
else
{
bool simple_ret = cppu_isSimpleType(
((typelib_InterfaceMethodTypeDescription *)pTD)->pReturnTypeRef->eTypeClass );
*slots++ = code;
codeSnippet( code, vtable_pos++, simple_ret );
code += 20;
}
TYPELIB_DANGER_RELEASE( pTD );
}
OSL_ASSERT( vtable_pos == nSlots );
}
else
{
buffer = iFind->second;
}
}
return ((void **)buffer +2);
}
//==================================================================================================
void SAL_CALL cppu_cppInterfaceProxy_patchVtable(
XInterface * pCppI, typelib_InterfaceTypeDescription * pTypeDescr ) throw ()
{
static MediateClassData * s_pMediateClassData = 0;
if (! s_pMediateClassData)
{
MutexGuard aGuard( Mutex::getGlobalMutex() );
if (! s_pMediateClassData)
{
#ifdef LEAK_STATIC_DATA
s_pMediateClassData = new MediateClassData();
#else
static MediateClassData s_aMediateClassData;
s_pMediateClassData = &s_aMediateClassData;
#endif
}
}
*(void const **)pCppI = s_pMediateClassData->get_vtable( pTypeDescr );
}
}
extern "C"
{
//##################################################################################################
sal_Bool SAL_CALL component_canUnload( TimeValue * pTime )
SAL_THROW_EXTERN_C()
{
return CPPU_CURRENT_NAMESPACE::g_moduleCount.canUnload(
&CPPU_CURRENT_NAMESPACE::g_moduleCount, pTime );
}
//##################################################################################################
void SAL_CALL uno_initEnvironment( uno_Environment * pCppEnv )
SAL_THROW_EXTERN_C()
{
CPPU_CURRENT_NAMESPACE::cppu_cppenv_initEnvironment(
pCppEnv );
}
//##################################################################################################
void SAL_CALL uno_ext_getMapping(
uno_Mapping ** ppMapping, uno_Environment * pFrom, uno_Environment * pTo )
SAL_THROW_EXTERN_C()
{
CPPU_CURRENT_NAMESPACE::cppu_ext_getMapping(
ppMapping, pFrom, pTo );
}
}