binaryurp/source/incomingrequest.cxx

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
   2 /*
   3  * This file is part of the LibreOffice project.
   4  *
   5  * This Source Code Form is subject to the terms of the Mozilla Public
   6  * License, v. 2.0. If a copy of the MPL was not distributed with this
   7  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
   8  *
   9  * This file incorporates work covered by the following license notice:
  10  *
  11  *   Licensed to the Apache Software Foundation (ASF) under one or more
  12  *   contributor license agreements. See the NOTICE file distributed
  13  *   with this work for additional information regarding copyright
  14  *   ownership. The ASF licenses this file to you under the Apache
  15  *   License, Version 2.0 (the "License"); you may not use this file
  16  *   except in compliance with the License. You may obtain a copy of
  17  *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
  18  */
  19
  20 #include "sal/config.h"
  21
  22 #include <list>
  23 #include <vector>
  24
  25 #include "boost/noncopyable.hpp"
  26 #include "com/sun/star/bridge/XInstanceProvider.hpp"
  27 #include "cppuhelper/exc_hlp.hxx"
  28 #include "rtl/byteseq.hxx"
  29 #include "rtl/ref.hxx"
  30 #include "rtl/ustring.hxx"
  31 #include "sal/types.h"
  32 #include "typelib/typedescription.hxx"
  33 #include "uno/dispatcher.hxx"
  34
  35 #include "binaryany.hxx"
  36 #include "bridge.hxx"
  37 #include "currentcontext.hxx"
  38 #include "incomingrequest.hxx"
  39 #include "specialfunctionids.hxx"
  40
  41 namespace binaryurp {
  42
  43 IncomingRequest::IncomingRequest(
  44     rtl::Reference< Bridge > const & bridge, rtl::ByteSequence const & tid,
  45     OUString const & oid, css::uno::UnoInterfaceReference const & object,
  46     css::uno::TypeDescription const & type, sal_uInt16 functionId,
  47     bool synchronous, css::uno::TypeDescription const & member, bool setter,
  48     std::vector< BinaryAny > const & inArguments, bool currentContextMode,
  49     css::uno::UnoInterfaceReference const & currentContext):
  50     bridge_(bridge), tid_(tid), oid_(oid), object_(object), type_(type),
  51     functionId_(functionId), synchronous_(synchronous), member_(member),
  52     setter_(setter), inArguments_(inArguments),
  53     currentContextMode_(currentContextMode), currentContext_(currentContext)
  54 {
  55     OSL_ASSERT(bridge.is() && member.is() && member.get()->bComplete);
  56 }
  57
  58 IncomingRequest::~IncomingRequest() {}
  59
  60 void IncomingRequest::execute() const {
  61     BinaryAny ret;
  62     std::vector< BinaryAny > outArgs;
  63     bool isExc;
  64     try {
  65         bool resetCc = false;
  66         css::uno::UnoInterfaceReference oldCc;
  67         if (currentContextMode_) {
  68             oldCc = current_context::get();
  69             current_context::set(currentContext_);
  70             resetCc = true;
  71         }
  72         try {
  73             try {
  74                 isExc = !execute_throw(&ret, &outArgs);
  75             } catch (const std::exception & e) {
  76                 throw css::uno::RuntimeException(
  77                     ("caught C++ exception: " +
  78                      OStringToOUString(
  79                          OString(e.what()), RTL_TEXTENCODING_ASCII_US)),
  80                     css::uno::Reference< css::uno::XInterface >());
  81                     // best-effort string conversion
  82             }
  83         } catch (const css::uno::RuntimeException &) {
  84             css::uno::Any exc(cppu::getCaughtException());
  85             ret = bridge_->mapCppToBinaryAny(exc);
  86             isExc = true;
  87         }
  88         if (resetCc) {
  89             current_context::set(oldCc);
  90         }
  91     } catch (const css::uno::RuntimeException &) {
  92         css::uno::Any exc(cppu::getCaughtException());
  93         ret = bridge_->mapCppToBinaryAny(exc);
  94         isExc = true;
  95     }
  96     if (synchronous_) {
  97         bridge_->decrementActiveCalls();
  98         try {
  99             bridge_->getWriter()->queueReply(
 100                 tid_, member_, setter_, isExc, ret, outArgs, false);
 101             return;
 102         } catch (const css::uno::RuntimeException & e) {
 103             OSL_TRACE(
 104                 "caught UNO runtime exception '%s'",
 105                 (OUStringToOString(e.Message, RTL_TEXTENCODING_UTF8).
 106                  getStr()));
 107         } catch (const std::exception & e) {
 108             OSL_TRACE("caught C++ exception '%s'", e.what());
 109         }
 110         bridge_->terminate(false);
 111     } else {
 112         if (isExc) {
 113             OSL_TRACE("oneway method raised exception");
 114         }
 115         bridge_->decrementCalls();
 116     }
 117 }
 118
 119 static size_t size_t_round(size_t val)
 120 {
 121     return (val + (sizeof(size_t)-1)) & ~(sizeof(size_t)-1);
 122 }
 123
 124 bool IncomingRequest::execute_throw(
 125     BinaryAny * returnValue, std::vector< BinaryAny > * outArguments) const
 126 {
 127     OSL_ASSERT(
 128         returnValue != 0 &&
 129         returnValue->getType().equals(
 130             css::uno::TypeDescription(
 131                 cppu::UnoType< cppu::UnoVoidType >::get())) &&
 132         outArguments != 0 && outArguments->empty());
 133     bool isExc = false;
 134     switch (functionId_) {
 135     case SPECIAL_FUNCTION_ID_RESERVED:
 136         OSL_ASSERT(false); // this cannot happen
 137         break;
 138     case SPECIAL_FUNCTION_ID_RELEASE:
 139         bridge_->releaseStub(oid_, type_);
 140         break;
 141     case SPECIAL_FUNCTION_ID_QUERY_INTERFACE:
 142         if (!object_.is()) {
 143             css::uno::Reference< css::uno::XInterface > ifc;
 144             css::uno::Reference< css::bridge::XInstanceProvider > prov(
 145                 bridge_->getProvider());
 146             if (prov.is()) {
 147                 try {
 148                     ifc = prov->getInstance(oid_);
 149                 } catch (const css::container::NoSuchElementException & e) {
 150                     OSL_TRACE(
 151                         "initial element '%s': NoSuchElementException '%s'",
 152                         OUStringToOString(oid_, RTL_TEXTENCODING_UTF8).getStr(),
 153                         (OUStringToOString(e.Message, RTL_TEXTENCODING_UTF8).
 154                          getStr()));
 155                 }
 156             }
 157             if (ifc.is()) {
 158                 css::uno::UnoInterfaceReference unoIfc(
 159                     static_cast< uno_Interface * >(
 160                         bridge_->getCppToBinaryMapping().mapInterface(
 161                             ifc.get(),
 162                             (css::uno::TypeDescription(
 163                                 cppu::UnoType<
 164                                     css::uno::Reference<
 165                                         css::uno::XInterface > >::get()).
 166                              get()))),
 167                     SAL_NO_ACQUIRE);
 168                 *returnValue = BinaryAny(
 169                     css::uno::TypeDescription(
 170                         cppu::UnoType<
 171                             css::uno::Reference<
 172                                 css::uno::XInterface > >::get()),
 173                     &unoIfc.m_pUnoI);
 174             }
 175             break;
 176         }
 177         // fall through
 178     default:
 179         {
 180             OSL_ASSERT(object_.is());
 181             css::uno::TypeDescription retType;
 182             std::list< std::vector< char > > outBufs;
 183             std::vector< void * > args;
 184             switch (member_.get()->eTypeClass) {
 185             case typelib_TypeClass_INTERFACE_ATTRIBUTE:
 186                 {
 187                     css::uno::TypeDescription t(
 188                         reinterpret_cast<
 189                             typelib_InterfaceAttributeTypeDescription * >(
 190                                 member_.get())->
 191                         pAttributeTypeRef);
 192                     if (setter_) {
 193                         OSL_ASSERT(inArguments_.size() == 1);
 194                         args.push_back(inArguments_[0].getValue(t));
 195                     } else {
 196                         OSL_ASSERT(inArguments_.empty());
 197                         retType = t;
 198                     }
 199                     break;
 200                 }
 201             case typelib_TypeClass_INTERFACE_METHOD:
 202                 {
 203                     typelib_InterfaceMethodTypeDescription * mtd =
 204                         reinterpret_cast<
 205                             typelib_InterfaceMethodTypeDescription * >(
 206                                 member_.get());
 207                     retType = css::uno::TypeDescription(mtd->pReturnTypeRef);
 208                     std::vector< BinaryAny >::const_iterator i(
 209                         inArguments_.begin());
 210                     for (sal_Int32 j = 0; j != mtd->nParams; ++j) {
 211                         void * p;
 212                         if (mtd->pParams[j].bIn) {
 213                             p = i++->getValue(
 214                                 css::uno::TypeDescription(
 215                                     mtd->pParams[j].pTypeRef));
 216                         } else {
 217                             outBufs.push_back(
 218                                 std::vector< char >(size_t_round(
 219                                     css::uno::TypeDescription(
 220                                         mtd->pParams[j].pTypeRef).
 221                                     get()->nSize)));
 222                             p = &outBufs.back()[0];
 223                         }
 224                         args.push_back(p);
 225                         if (mtd->pParams[j].bOut) {
 226                             outArguments->push_back(BinaryAny());
 227                         }
 228                     }
 229                     OSL_ASSERT(i == inArguments_.end());
 230                     break;
 231                 }
 232             default:
 233                 OSL_ASSERT(false); // this cannot happen
 234                 break;
 235             }
 236             size_t nSize = 0;
 237             if (retType.is())
 238                 nSize = size_t_round(retType.get()->nSize);
 239             std::vector< char > retBuf(nSize);
 240             uno_Any exc;
 241             uno_Any * pexc = &exc;
 242             (*object_.get()->pDispatcher)(
 243                 object_.get(), member_.get(), retBuf.empty() ? 0 : &retBuf[0],
 244                 args.empty() ? 0 : &args[0], &pexc);
 245             isExc = pexc != 0;
 246             if (isExc) {
 247                 *returnValue = BinaryAny(
 248                     css::uno::TypeDescription(
 249                         cppu::UnoType< css::uno::Any >::get()),
 250                     &exc);
 251                 uno_any_destruct(&exc, 0);
 252             } else {
 253                 if (!retBuf.empty()) {
 254                     *returnValue = BinaryAny(retType, &retBuf[0]);
 255                     uno_destructData(&retBuf[0], retType.get(), 0);
 256                 }
 257                 if (!outArguments->empty()) {
 258                     OSL_ASSERT(
 259                         member_.get()->eTypeClass ==
 260                         typelib_TypeClass_INTERFACE_METHOD);
 261                     typelib_InterfaceMethodTypeDescription * mtd =
 262                         reinterpret_cast<
 263                             typelib_InterfaceMethodTypeDescription * >(
 264                                 member_.get());
 265                     std::vector< BinaryAny >::iterator i(outArguments->begin());
 266                     std::list< std::vector< char > >::iterator j(
 267                         outBufs.begin());
 268                     for (sal_Int32 k = 0; k != mtd->nParams; ++k) {
 269                         if (mtd->pParams[k].bOut) {
 270                             *i++ = BinaryAny(
 271                                 css::uno::TypeDescription(
 272                                     mtd->pParams[k].pTypeRef),
 273                                 args[k]);
 274                         }
 275                         if (!mtd->pParams[k].bIn) {
 276                             uno_type_destructData(
 277                                 &(*j++)[0], mtd->pParams[k].pTypeRef, 0);
 278                         }
 279                     }
 280                     OSL_ASSERT(i == outArguments->end());
 281                     OSL_ASSERT(j == outBufs.end());
 282                 }
 283             }
 284             break;
 285         }
 286     }
 287     return !isExc;
 288 }
 289
 290 }
 291
 292 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */