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.hxx>
      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 ::cppu;
      39             : 
      40             : 
      41        1709 : static inline void createLocalId( sal_Sequence **ppThreadId )
      42             : {
      43        1709 :     rtl_byte_sequence_constructNoDefault( ppThreadId , 4 + 16 );
      44        1709 :     sal_uInt32 id = osl::Thread::getCurrentIdentifier();
      45        1709 :     (*ppThreadId)->elements[0] = id & 0xFF;
      46        1709 :     (*ppThreadId)->elements[1] = (id >> 8) & 0xFF;
      47        1709 :     (*ppThreadId)->elements[2] = (id >> 16) & 0xFF;
      48        1709 :     (*ppThreadId)->elements[3] = (id >> 24) & 0xFF;
      49        1709 :     rtl_getGlobalProcessId( (sal_uInt8 * ) &( (*ppThreadId)->elements[4]) );
      50        1709 : }
      51             : 
      52             : 
      53             : extern "C" void SAL_CALL
      54       61664 : uno_getIdOfCurrentThread( sal_Sequence **ppThreadId )
      55             :     SAL_THROW_EXTERN_C()
      56             : {
      57       61664 :     IdContainer * p = getIdContainer();
      58       61664 :     if( ! p->bInit )
      59             :     {
      60             :         // first time, that the thread enters the bridge
      61          58 :         createLocalId( ppThreadId );
      62             : 
      63             :         // TODO
      64             :         // note : this is a leak !
      65          58 :         p->pLocalThreadId = *ppThreadId;
      66          58 :         p->pCurrentId = *ppThreadId;
      67          58 :         p->nRefCountOfCurrentId = 1;
      68          58 :         rtl_byte_sequence_acquire( p->pLocalThreadId );
      69          58 :         rtl_byte_sequence_acquire( p->pCurrentId );
      70          58 :         p->bInit = true;
      71             :     }
      72             :     else
      73             :     {
      74       61606 :         p->nRefCountOfCurrentId ++;
      75       61606 :         if( *ppThreadId )
      76             :         {
      77           0 :             rtl_byte_sequence_release( *ppThreadId );
      78             :         }
      79       61606 :         *ppThreadId = p->pCurrentId;
      80       61606 :         rtl_byte_sequence_acquire( *ppThreadId );
      81             :     }
      82       61664 : }
      83             : 
      84             : 
      85      373449 : extern "C" void SAL_CALL uno_releaseIdFromCurrentThread()
      86             :     SAL_THROW_EXTERN_C()
      87             : {
      88      373449 :     IdContainer *p = getIdContainer();
      89             :     OSL_ASSERT( p );
      90             :     OSL_ASSERT( p->nRefCountOfCurrentId );
      91             : 
      92      373449 :     p->nRefCountOfCurrentId --;
      93      373449 :     if( ! p->nRefCountOfCurrentId && (p->pLocalThreadId != p->pCurrentId) )
      94             :     {
      95      311785 :         rtl_byte_sequence_assign( &(p->pCurrentId) , p->pLocalThreadId );
      96             :     }
      97      373449 : }
      98             : 
      99      311785 : extern "C" sal_Bool SAL_CALL uno_bindIdToCurrentThread( sal_Sequence *pThreadId )
     100             :     SAL_THROW_EXTERN_C()
     101             : {
     102      311785 :     IdContainer *p = getIdContainer();
     103      311785 :     if( ! p->bInit )
     104             :     {
     105        1651 :         p->pLocalThreadId = 0;
     106        1651 :         createLocalId( &(p->pLocalThreadId) );
     107        1651 :         p->nRefCountOfCurrentId = 1;
     108        1651 :         p->pCurrentId = pThreadId;
     109        1651 :         rtl_byte_sequence_acquire( p->pCurrentId );
     110        1651 :         p->bInit = true;
     111             :     }
     112             :     else
     113             :     {
     114             :         OSL_ASSERT( 0 == p->nRefCountOfCurrentId );
     115      310134 :         if( 0 == p->nRefCountOfCurrentId )
     116             :         {
     117      310134 :             rtl_byte_sequence_assign(&( p->pCurrentId ), pThreadId );
     118      310134 :             p->nRefCountOfCurrentId ++;
     119             :         }
     120             :         else
     121             :         {
     122           0 :             return sal_False;
     123             :         }
     124             : 
     125             :     }
     126      311785 :     return sal_True;
     127             : }
     128             : 
     129             : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */