Adding upstream version 1:7.0.4.upstream/1%7.0.4upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 503 insertions, 0 deletions

diff --git a/cppu/source/helper/purpenv/helper_purpenv_Proxy.cxx b/cppu/source/helper/purpenv/helper_purpenv_Proxy.cxx
new file mode 100644
index 000000000..f62241fe1
--- /dev/null
+++ b/cppu/source/helper/purpenv/helper_purpenv_Proxy.cxx
@@ -0,0 +1,503 @@
+/* -*- 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 "Proxy.hxx"
+
+#include <sal/log.hxx>
+#include <uno/dispatcher.h>
+#include <typelib/typedescription.hxx>
+
+using namespace com::sun::star;
+
+static bool relatesToInterface(typelib_TypeDescription * pTypeDescr)
+{
+    switch (pTypeDescr->eTypeClass)
+    {
+//      case typelib_TypeClass_TYPEDEF:
+    case typelib_TypeClass_SEQUENCE:
+    {
+        switch (reinterpret_cast<typelib_IndirectTypeDescription *>(pTypeDescr)->pType->eTypeClass)
+        {
+        case typelib_TypeClass_INTERFACE:
+        case typelib_TypeClass_ANY: // might relate to interface
+            return true;
+        case typelib_TypeClass_SEQUENCE:
+        case typelib_TypeClass_STRUCT:
+        case typelib_TypeClass_EXCEPTION:
+        {
+            typelib_TypeDescription * pTD = nullptr;
+            TYPELIB_DANGER_GET( &pTD, reinterpret_cast<typelib_IndirectTypeDescription *>(pTypeDescr)->pType );
+            bool bRel = relatesToInterface( pTD );
+            TYPELIB_DANGER_RELEASE( pTD );
+            return bRel;
+        }
+        default:
+            ;
+        }
+        return false;
+    }
+    case typelib_TypeClass_STRUCT:
+    case typelib_TypeClass_EXCEPTION:
+    {
+        // ...optimized... to avoid getDescription() calls!
+        typelib_CompoundTypeDescription * pComp    = reinterpret_cast<typelib_CompoundTypeDescription *>(pTypeDescr);
+        typelib_TypeDescriptionReference ** pTypes = pComp->ppTypeRefs;
+        for ( sal_Int32 nPos = pComp->nMembers; nPos--; )
+        {
+            switch (pTypes[nPos]->eTypeClass)
+            {
+            case typelib_TypeClass_INTERFACE:
+            case typelib_TypeClass_ANY: // might relate to interface
+                return true;
+//              case typelib_TypeClass_TYPEDEF:
+            case typelib_TypeClass_SEQUENCE:
+            case typelib_TypeClass_STRUCT:
+            case typelib_TypeClass_EXCEPTION:
+            {
+                typelib_TypeDescription * pTD = nullptr;
+                TYPELIB_DANGER_GET( &pTD, pTypes[nPos] );
+                bool bRel = relatesToInterface( pTD );
+                TYPELIB_DANGER_RELEASE( pTD );
+                if (bRel)
+                    return true;
+                break;
+            }
+            default:
+                break;
+            }
+        }
+        if (pComp->pBaseTypeDescription)
+            return relatesToInterface( &pComp->pBaseTypeDescription->aBase );
+        break;
+    }
+    case typelib_TypeClass_ANY: // might relate to interface
+    case typelib_TypeClass_INTERFACE:
+        return true;
+
+    default:
+        ;
+    }
+    return false;
+}
+
+extern "C" { static void s_Proxy_dispatch(
+    uno_Interface                 * pUnoI,
+    typelib_TypeDescription const * pMemberType,
+    void                          * pReturn,
+    void                          * pArgs[],
+    uno_Any                      ** ppException)
+    SAL_THROW_EXTERN_C()
+{
+    Proxy * pThis = static_cast<Proxy *>(pUnoI);
+
+    typelib_MethodParameter            param;
+    sal_Int32                          nParams = 0;
+    typelib_MethodParameter          * pParams = nullptr;
+    typelib_TypeDescriptionReference * pReturnTypeRef = nullptr;
+    // sal_Int32                          nOutParams = 0;
+
+    switch (pMemberType->eTypeClass)
+    {
+    case typelib_TypeClass_INTERFACE_ATTRIBUTE:
+        if (pReturn)
+        {
+            pReturnTypeRef =
+                reinterpret_cast<typelib_InterfaceAttributeTypeDescription const *>(
+                 pMemberType)->pAttributeTypeRef;
+            nParams = 0;
+            pParams = nullptr;
+        }
+        else
+        {
+            param.pTypeRef = reinterpret_cast<typelib_InterfaceAttributeTypeDescription const *>(
+                              pMemberType)->pAttributeTypeRef;
+            param.bIn = true;
+            param.bOut = false;
+            nParams = 1;
+            pParams = &param;
+        }
+        break;
+    case typelib_TypeClass_INTERFACE_METHOD:
+    {
+        typelib_InterfaceMethodTypeDescription const * method_td =
+            reinterpret_cast<typelib_InterfaceMethodTypeDescription const *>(pMemberType);
+        pReturnTypeRef = method_td->pReturnTypeRef;
+        nParams = method_td->nParams;
+        pParams = method_td->pParams;
+        break;
+    }
+    default:
+        OSL_FAIL( "### illegal member typeclass!" );
+        abort();
+    }
+
+    pThis->dispatch( pReturnTypeRef,
+                     pParams,
+                     nParams,
+                     pMemberType,
+                     pReturn,
+                     pArgs,
+                     ppException );
+}}
+
+extern "C" void Proxy_free(SAL_UNUSED_PARAMETER uno_ExtEnvironment * /*pEnv*/, void * pProxy) SAL_THROW_EXTERN_C()
+{
+    Proxy * pThis = static_cast<Proxy * >(static_cast<uno_Interface *>(pProxy));
+    delete pThis;
+}
+
+extern "C" {
+static void s_Proxy_acquire(uno_Interface * pUnoI) SAL_THROW_EXTERN_C()
+{
+    Proxy * pProxy = static_cast<Proxy *>(pUnoI);
+    pProxy->acquire();
+}
+
+static void s_Proxy_release(uno_Interface * pUnoI) SAL_THROW_EXTERN_C()
+{
+    Proxy * pProxy = static_cast<Proxy *>(pUnoI);
+    pProxy->release();
+}
+
+static void s_acquireAndRegister_v(va_list * pParam)
+{
+    uno_Interface                    * pUnoI      = va_arg(*pParam, uno_Interface *);
+    rtl_uString                      * pOid       = va_arg(*pParam, rtl_uString *);
+    typelib_InterfaceTypeDescription * pTypeDescr = va_arg(*pParam, typelib_InterfaceTypeDescription *);
+    uno_ExtEnvironment               * pEnv       = va_arg(*pParam, uno_ExtEnvironment *);
+
+    pUnoI->acquire(pUnoI);
+    pEnv->registerInterface(pEnv, reinterpret_cast<void **>(&pUnoI), pOid, pTypeDescr);
+}
+}
+
+Proxy::Proxy(uno::Mapping                  const & to_from,
+             uno_Environment                     * pTo,
+             uno_Environment                     * pFrom,
+             uno_Interface                       * pUnoI,
+             typelib_InterfaceTypeDescription    * pTypeDescr,
+             OUString                      const & rOId,
+             cppu::helper::purpenv::ProbeFun     * probeFun,
+             void                                * pProbeContext
+)
+        : m_nRef         (1),
+          m_from         (pFrom),
+          m_to           (pTo),
+          m_from_to      (pFrom, pTo),
+          m_to_from      (to_from),
+          m_pUnoI        (pUnoI),
+          m_pTypeDescr   (pTypeDescr),
+          m_aOId         (rOId),
+          m_probeFun     (probeFun),
+          m_pProbeContext(pProbeContext)
+{
+    SAL_INFO("cppu.purpenv", "LIFE: Proxy::Proxy(<>) -> " << this);
+
+    typelib_typedescription_acquire(&m_pTypeDescr->aBase);
+    if (!m_pTypeDescr->aBase.bComplete)
+        typelib_typedescription_complete(reinterpret_cast<typelib_TypeDescription **>(&m_pTypeDescr));
+
+    OSL_ENSURE(m_pTypeDescr->aBase.bComplete, "### type is incomplete!");
+
+    uno_Environment_invoke(m_to.get(), s_acquireAndRegister_v, m_pUnoI, rOId.pData, pTypeDescr, m_to.get());
+
+    // uno_Interface
+    uno_Interface::acquire     = s_Proxy_acquire;
+    uno_Interface::release     = s_Proxy_release;
+    uno_Interface::pDispatcher = s_Proxy_dispatch;
+}
+
+extern "C" { static void s_releaseAndRevoke_v(va_list * pParam)
+{
+    uno_ExtEnvironment * pEnv  = va_arg(*pParam, uno_ExtEnvironment *);
+    uno_Interface      * pUnoI = va_arg(*pParam, uno_Interface *);
+
+    pEnv->revokeInterface(pEnv, pUnoI);
+    pUnoI->release(pUnoI);
+}}
+
+Proxy::~Proxy()
+{
+    SAL_INFO("cppu.purpenv", "LIFE: Proxy::~Proxy() -> " << this);
+
+    uno_Environment_invoke(m_to.get(), s_releaseAndRevoke_v, m_to.get(), m_pUnoI);
+
+    typelib_typedescription_release(&m_pTypeDescr->aBase);
+}
+
+static uno::TypeDescription getAcquireMethod()
+{
+    typelib_TypeDescriptionReference * type_XInterface =
+        * typelib_static_type_getByTypeClass(typelib_TypeClass_INTERFACE);
+
+    typelib_TypeDescription * pTXInterfaceDescr = nullptr;
+    TYPELIB_DANGER_GET    (&pTXInterfaceDescr, type_XInterface);
+    uno::TypeDescription acquire(
+        reinterpret_cast< typelib_InterfaceTypeDescription * >(
+            pTXInterfaceDescr)->ppAllMembers[1]);
+    TYPELIB_DANGER_RELEASE(pTXInterfaceDescr);
+
+    return acquire;
+}
+
+static uno::TypeDescription getReleaseMethod()
+{
+    typelib_TypeDescriptionReference * type_XInterface =
+        * typelib_static_type_getByTypeClass(typelib_TypeClass_INTERFACE);
+
+    typelib_TypeDescription * pTXInterfaceDescr = nullptr;
+    TYPELIB_DANGER_GET    (&pTXInterfaceDescr, type_XInterface);
+    uno::TypeDescription release(
+        reinterpret_cast< typelib_InterfaceTypeDescription * >(
+            pTXInterfaceDescr)->ppAllMembers[2]);
+    TYPELIB_DANGER_RELEASE(pTXInterfaceDescr);
+
+    return release;
+}
+
+static uno::TypeDescription s_acquireMethod(getAcquireMethod());
+static uno::TypeDescription s_releaseMethod(getReleaseMethod());
+
+void Proxy::acquire()
+{
+    if (m_probeFun)
+        m_probeFun(true,
+                   this,
+                   m_pProbeContext,
+                   *typelib_static_type_getByTypeClass(typelib_TypeClass_VOID),
+                   nullptr,
+                   0,
+                   s_acquireMethod.get(),
+                   nullptr,
+                   nullptr,
+                   nullptr);
+
+    if (osl_atomic_increment(&m_nRef) == 1)
+    {
+        // rebirth of proxy zombie
+        void * pThis = this;
+        m_from.get()->pExtEnv->registerProxyInterface(m_from.get()->pExtEnv,
+                                                      &pThis,
+                                                      Proxy_free,
+                                                      m_aOId.pData,
+                                                      m_pTypeDescr);
+        OSL_ASSERT(pThis == this);
+    }
+
+    if (m_probeFun)
+        m_probeFun(false,
+                   this,
+                   m_pProbeContext,
+                   *typelib_static_type_getByTypeClass(typelib_TypeClass_VOID),
+                   nullptr,
+                   0,
+                   s_acquireMethod.get(),
+                   nullptr,
+                   nullptr,
+                   nullptr);
+
+}
+
+void Proxy::release()
+{
+    cppu::helper::purpenv::ProbeFun * probeFun = m_probeFun;
+    void                            * pProbeContext = m_pProbeContext;
+
+    if (m_probeFun)
+        m_probeFun(true,
+                   this,
+                   m_pProbeContext,
+                   *typelib_static_type_getByTypeClass(typelib_TypeClass_VOID),
+                   nullptr,
+                   0,
+                   s_releaseMethod.get(),
+                   nullptr,
+                   nullptr,
+                   nullptr);
+
+    if (osl_atomic_decrement(&m_nRef) == 0)
+        m_from.get()->pExtEnv->revokeInterface(m_from.get()->pExtEnv, this);
+
+    if (probeFun)
+        probeFun(false,
+                 this,
+                 pProbeContext,
+                 *typelib_static_type_getByTypeClass(typelib_TypeClass_VOID),
+                 nullptr,
+                 0,
+                 s_releaseMethod.get(),
+                 nullptr,
+                 nullptr,
+                 nullptr);
+
+}
+
+
+extern "C" {
+static void s_type_destructData_v(va_list * pParam)
+{
+    void * ret = va_arg(*pParam, void *);
+    typelib_TypeDescriptionReference * pReturnTypeRef = va_arg(*pParam, typelib_TypeDescriptionReference *);
+
+    uno_type_destructData(ret, pReturnTypeRef, nullptr);
+}
+
+static void s_dispatcher_v(va_list * pParam)
+{
+    uno_Interface                 * pUnoI       = va_arg(*pParam, uno_Interface *);
+    typelib_TypeDescription const * pMemberType = va_arg(*pParam, typelib_TypeDescription const *);
+    void                          * pReturn     = va_arg(*pParam, void *);
+    void                         ** pArgs       = va_arg(*pParam, void **);
+    uno_Any                      ** ppException = va_arg(*pParam, uno_Any **);
+
+    pUnoI->pDispatcher(pUnoI, pMemberType, pReturn, pArgs, ppException);
+}
+}
+
+void Proxy::dispatch(typelib_TypeDescriptionReference * pReturnTypeRef,
+                     typelib_MethodParameter          * pParams,
+                     sal_Int32                          nParams,
+                     typelib_TypeDescription    const * pMemberType,
+                     void                             * pReturn,
+                     void                             * pArgs[],
+                     uno_Any                         ** ppException)
+{
+    if (m_probeFun)
+        m_probeFun(true,
+                   this,
+                   m_pProbeContext,
+                   pReturnTypeRef,
+                   pParams,
+                   nParams,
+                   pMemberType,
+                   pReturn,
+                   pArgs,
+                   ppException);
+
+    void ** args = static_cast<void **>(alloca( sizeof (void *) * nParams ));
+
+    typelib_TypeDescription * return_td = nullptr;
+    void * ret = pReturn;
+    if (pReturnTypeRef)
+    {
+        TYPELIB_DANGER_GET(&return_td, pReturnTypeRef);
+
+        if (relatesToInterface(return_td))
+            ret = alloca(return_td->nSize);
+
+        TYPELIB_DANGER_RELEASE(return_td);
+    }
+
+    for (sal_Int32 nPos = 0; nPos < nParams; ++ nPos)
+    {
+        typelib_MethodParameter const & param = pParams[nPos];
+        typelib_TypeDescription * td = nullptr;
+        TYPELIB_DANGER_GET( &td, param.pTypeRef );
+        if (relatesToInterface(td))
+        {
+            args[nPos] = alloca(td->nSize);
+            if (param.bIn)
+            {
+                uno_copyAndConvertData(args[nPos], pArgs[nPos], td, m_from_to.get());
+            }
+        }
+        else
+        {
+            args[nPos] = pArgs[nPos];
+        }
+        TYPELIB_DANGER_RELEASE( td );
+    }
+
+    uno_Any exc_data;
+    uno_Any * exc = &exc_data;
+
+    // do the UNO call...
+    uno_Environment_invoke(m_to.get(), s_dispatcher_v, m_pUnoI, pMemberType, ret, args, &exc);
+
+    if (exc == nullptr)
+    {
+        for (sal_Int32 nPos = 0; nPos < nParams; ++ nPos)
+        {
+            if (args[nPos] != pArgs[nPos])
+            {
+                typelib_MethodParameter const & param = pParams[nPos];
+                if (param.bOut)
+                {
+                    if (param.bIn) // is inout
+                    {
+                        uno_type_destructData(pArgs[nPos], param.pTypeRef, nullptr);
+                    }
+                    uno_type_copyAndConvertData(pArgs[ nPos ],
+                                                args[ nPos ],
+                                                param.pTypeRef,
+                                                m_to_from.get());
+                }
+                uno_Environment_invoke(m_to.get(), s_type_destructData_v, args[nPos], param.pTypeRef, 0);
+            }
+        }
+        if (ret != pReturn)
+        {
+            uno_type_copyAndConvertData(pReturn,
+                                        ret,
+                                        pReturnTypeRef,
+                                        m_to_from.get());
+
+            uno_Environment_invoke(m_to.get(), s_type_destructData_v, ret, pReturnTypeRef, 0);
+        }
+
+        *ppException = nullptr;
+    }
+    else // exception occurred
+    {
+        for (sal_Int32 nPos = 0; nPos < nParams; ++ nPos)
+        {
+            if (args[nPos] != pArgs[nPos])
+            {
+                typelib_MethodParameter const & param = pParams[nPos];
+                if (param.bIn)
+                {
+                    uno_Environment_invoke(m_to.get(), s_type_destructData_v, args[nPos], param.pTypeRef, 0);
+                }
+            }
+        }
+
+        uno_type_any_constructAndConvert(*ppException,
+                                         exc->pData,
+                                         exc->pType,
+                                         m_to_from.get());
+
+        // FIXME: need to destruct in m_to
+        uno_any_destruct(exc, nullptr);
+    }
+
+    if (m_probeFun)
+        m_probeFun(false,
+                   this,
+                   m_pProbeContext,
+                   pReturnTypeRef,
+                   pParams,
+                   nParams,
+                   pMemberType,
+                   pReturn,
+                   pArgs,
+                   ppException);
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */