Line data    Source code

       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 <stdio.h>
      21             : 
      22             : #include <list>
      23             : 
      24             : #include <osl/mutex.hxx>
      25             : #include <osl/thread.h>
      26             : #include <osl/diagnose.h>
      27             : 
      28             : #include <rtl/process.h>
      29             : #include <rtl/byteseq.hxx>
      30             : 
      31             : #include <uno/threadpool.h>
      32             : 
      33             : #include "current.hxx"
      34             : 
      35             : 
      36             : using namespace ::std;
      37             : using namespace ::osl;
      38             : using namespace ::rtl;
      39             : using namespace ::cppu;
      40             : 
      41             : 
      42           0 : static inline void createLocalId( sal_Sequence **ppThreadId )
      43             : {
      44           0 :     rtl_byte_sequence_constructNoDefault( ppThreadId , 4 + 16 );
      45           0 :     sal_uInt32 id = osl_getThreadIdentifier(0);
      46           0 :     (*ppThreadId)->elements[0] = id & 0xFF;
      47           0 :     (*ppThreadId)->elements[1] = (id >> 8) & 0xFF;
      48           0 :     (*ppThreadId)->elements[2] = (id >> 16) & 0xFF;
      49           0 :     (*ppThreadId)->elements[3] = (id >> 24) & 0xFF;
      50           0 :     rtl_getGlobalProcessId( (sal_uInt8 * ) &( (*ppThreadId)->elements[4]) );
      51           0 : }
      52             : 
      53             : 
      54             : extern "C" void SAL_CALL
      55           0 : uno_getIdOfCurrentThread( sal_Sequence **ppThreadId )
      56             :     SAL_THROW_EXTERN_C()
      57             : {
      58           0 :     IdContainer * p = getIdContainer();
      59           0 :     if( ! p->bInit )
      60             :     {
      61             :         // first time, that the thread enters the bridge
      62           0 :         createLocalId( ppThreadId );
      63             : 
      64             :         // TODO
      65             :         // note : this is a leak !
      66           0 :         p->pLocalThreadId = *ppThreadId;
      67           0 :         p->pCurrentId = *ppThreadId;
      68           0 :         p->nRefCountOfCurrentId = 1;
      69           0 :         rtl_byte_sequence_acquire( p->pLocalThreadId );
      70           0 :         rtl_byte_sequence_acquire( p->pCurrentId );
      71           0 :         p->bInit = sal_True;
      72             :     }
      73             :     else
      74             :     {
      75           0 :         p->nRefCountOfCurrentId ++;
      76           0 :         if( *ppThreadId )
      77             :         {
      78           0 :             rtl_byte_sequence_release( *ppThreadId );
      79             :         }
      80           0 :         *ppThreadId = p->pCurrentId;
      81           0 :         rtl_byte_sequence_acquire( *ppThreadId );
      82             :     }
      83           0 : }
      84             : 
      85             : 
      86           0 : extern "C" void SAL_CALL uno_releaseIdFromCurrentThread()
      87             :     SAL_THROW_EXTERN_C()
      88             : {
      89           0 :     IdContainer *p = getIdContainer();
      90             :     OSL_ASSERT( p );
      91             :     OSL_ASSERT( p->nRefCountOfCurrentId );
      92             : 
      93           0 :     p->nRefCountOfCurrentId --;
      94           0 :     if( ! p->nRefCountOfCurrentId && (p->pLocalThreadId != p->pCurrentId) )
      95             :     {
      96           0 :         rtl_byte_sequence_assign( &(p->pCurrentId) , p->pLocalThreadId );
      97             :     }
      98           0 : }
      99             : 
     100           0 : extern "C" sal_Bool SAL_CALL uno_bindIdToCurrentThread( sal_Sequence *pThreadId )
     101             :     SAL_THROW_EXTERN_C()
     102             : {
     103           0 :     IdContainer *p = getIdContainer();
     104           0 :     if( ! p->bInit )
     105             :     {
     106           0 :         p->pLocalThreadId = 0;
     107           0 :         createLocalId( &(p->pLocalThreadId) );
     108           0 :         p->nRefCountOfCurrentId = 1;
     109           0 :         p->pCurrentId = pThreadId;
     110           0 :         rtl_byte_sequence_acquire( p->pCurrentId );
     111           0 :         p->bInit = sal_True;
     112             :     }
     113             :     else
     114             :     {
     115             :         OSL_ASSERT( 0 == p->nRefCountOfCurrentId );
     116           0 :         if( 0 == p->nRefCountOfCurrentId )
     117             :         {
     118           0 :             rtl_byte_sequence_assign(&( p->pCurrentId ), pThreadId );
     119           0 :             p->nRefCountOfCurrentId ++;
     120             :         }
     121             :         else
     122             :         {
     123           0 :             return sal_False;
     124             :         }
     125             : 
     126             :     }
     127           0 :     return sal_True;
     128             : }
     129             : 
     130             : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */