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/* -*- 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 <rtl/unload.h>
#include <rtl/ustring.hxx>
#include <rtl/instance.hxx>
#include <osl/mutex.hxx>
using osl::MutexGuard;
//----------------------------------------------------------------------------
#ifndef DISABLE_DYNLOADING
namespace
{
class theUnloadingMutex : public rtl::Static<osl::Mutex, theUnloadingMutex>{};
}
static osl::Mutex& getUnloadingMutex()
{
return theUnloadingMutex::get();
}
#endif
extern "C" void rtl_moduleCount_acquire(rtl_ModuleCount * that )
{
#ifdef DISABLE_DYNLOADING
(void) that;
#else
rtl_StandardModuleCount* pMod= (rtl_StandardModuleCount*)that;
osl_atomic_increment( &pMod->counter);
#endif
}
extern "C" void rtl_moduleCount_release( rtl_ModuleCount * that )
{
#ifdef DISABLE_DYNLOADING
(void) that;
#else
rtl_StandardModuleCount* pMod= (rtl_StandardModuleCount*)that;
OSL_ENSURE( pMod->counter >0 , "library counter incorrect" );
osl_atomic_decrement( &pMod->counter);
if( pMod->counter == 0)
{
MutexGuard guard( getUnloadingMutex());
if( sal_False == osl_getSystemTime( &pMod->unusedSince) )
{
// set the time to 0 if we could not get the time
pMod->unusedSince.Seconds= 0;
pMod->unusedSince.Nanosec= 0;
}
}
#endif
}
extern "C" sal_Bool rtl_moduleCount_canUnload( rtl_StandardModuleCount * that, TimeValue * libUnused)
{
#ifdef DISABLE_DYNLOADING
(void) that;
(void) libUnused;
return sal_False;
#else
if (that->counter == 0)
{
MutexGuard guard( getUnloadingMutex());
if (libUnused && (that->counter == 0))
{
memcpy(libUnused, &that->unusedSince, sizeof(TimeValue));
}
}
return (that->counter == 0);
#endif
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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