754eb1541a
(This was there ever since the beginning in
85c2477a94
"INTEGRATION: CWS bunoexttm", while for
the similar OuterThread it was always absent.)
Change-Id: I3c43f0e35435b6035f6a1f2a1ca9f104bd639689
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/135240
Tested-by: Jenkins
Reviewed-by: Stephan Bergmann <sbergman@redhat.com>
360 lines
8.2 KiB
C++
360 lines
8.2 KiB
C++
/* -*- 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 <osl/thread.hxx>
|
|
#include <osl/conditn.hxx>
|
|
#include <osl/mutex.hxx>
|
|
#include <osl/diagnose.h>
|
|
#include <sal/log.hxx>
|
|
|
|
#include <cppu/Enterable.hxx>
|
|
#include <cppu/helper/purpenv/Environment.hxx>
|
|
#include <cppu/helper/purpenv/Mapping.hxx>
|
|
#include <memory>
|
|
|
|
namespace {
|
|
|
|
class InnerThread;
|
|
class OuterThread;
|
|
|
|
class AffineBridge : public cppu::Enterable
|
|
{
|
|
public:
|
|
enum Msg
|
|
{
|
|
CB_DONE,
|
|
CB_FPOINTER
|
|
};
|
|
|
|
Msg m_message;
|
|
uno_EnvCallee * m_pCallee;
|
|
va_list * m_pParam;
|
|
|
|
osl::Mutex m_innerMutex;
|
|
oslThreadIdentifier m_innerThreadId;
|
|
std::unique_ptr<InnerThread> m_pInnerThread;
|
|
osl::Condition m_innerCondition;
|
|
sal_Int32 m_enterCount;
|
|
|
|
osl::Mutex m_outerMutex;
|
|
oslThreadIdentifier m_outerThreadId;
|
|
osl::Condition m_outerCondition;
|
|
std::unique_ptr<OuterThread> m_pOuterThread;
|
|
|
|
explicit AffineBridge();
|
|
virtual ~AffineBridge() override;
|
|
|
|
virtual void v_callInto_v(uno_EnvCallee * pCallee, va_list * pParam) override;
|
|
virtual void v_callOut_v (uno_EnvCallee * pCallee, va_list * pParam) override;
|
|
|
|
virtual void v_enter() override;
|
|
virtual void v_leave() override;
|
|
|
|
virtual bool v_isValid(OUString * pReason) override;
|
|
|
|
void innerDispatch();
|
|
void outerDispatch(bool loop);
|
|
};
|
|
|
|
class InnerThread : public osl::Thread
|
|
{
|
|
virtual void SAL_CALL run() override;
|
|
|
|
AffineBridge * m_pAffineBridge;
|
|
|
|
public:
|
|
explicit InnerThread(AffineBridge * threadEnvironment)
|
|
: m_pAffineBridge(threadEnvironment)
|
|
{
|
|
create();
|
|
}
|
|
};
|
|
|
|
}
|
|
|
|
void InnerThread::run()
|
|
{
|
|
osl_setThreadName("UNO AffineBridge InnerThread");
|
|
|
|
m_pAffineBridge->enter();
|
|
m_pAffineBridge->innerDispatch();
|
|
m_pAffineBridge->leave();
|
|
}
|
|
|
|
namespace {
|
|
|
|
class OuterThread : public osl::Thread
|
|
{
|
|
virtual void SAL_CALL run() override;
|
|
|
|
AffineBridge * m_pAffineBridge;
|
|
|
|
public:
|
|
explicit OuterThread(AffineBridge * threadEnvironment);
|
|
};
|
|
|
|
}
|
|
|
|
OuterThread::OuterThread(AffineBridge * threadEnvironment)
|
|
: m_pAffineBridge(threadEnvironment)
|
|
{
|
|
create();
|
|
}
|
|
|
|
void OuterThread::run()
|
|
{
|
|
osl_setThreadName("UNO AffineBridge OuterThread");
|
|
|
|
osl::MutexGuard guard(m_pAffineBridge->m_outerMutex);
|
|
|
|
m_pAffineBridge->m_outerThreadId = getIdentifier();
|
|
m_pAffineBridge->outerDispatch(false);
|
|
m_pAffineBridge->m_outerThreadId = 0;
|
|
|
|
m_pAffineBridge->m_pOuterThread = nullptr;
|
|
m_pAffineBridge = nullptr;
|
|
}
|
|
|
|
|
|
AffineBridge::AffineBridge()
|
|
: m_message (CB_DONE),
|
|
m_pCallee (nullptr),
|
|
m_pParam (nullptr),
|
|
m_innerThreadId(0),
|
|
m_enterCount (0),
|
|
m_outerThreadId(0)
|
|
{
|
|
SAL_INFO("cppu.affinebridge", "LIFE: AffineBridge::AffineBridge(uno_Environment * pEnv) -> " << this);
|
|
}
|
|
|
|
AffineBridge::~AffineBridge()
|
|
{
|
|
SAL_INFO("cppu.affinebridge", "LIFE: AffineBridge::~AffineBridge() -> " << this);
|
|
|
|
if (m_pInnerThread && osl::Thread::getCurrentIdentifier() != m_innerThreadId)
|
|
{
|
|
m_message = CB_DONE;
|
|
m_innerCondition.set();
|
|
|
|
m_pInnerThread->join();
|
|
}
|
|
|
|
m_pInnerThread.reset();
|
|
|
|
if (m_pOuterThread)
|
|
{
|
|
m_pOuterThread->join();
|
|
}
|
|
}
|
|
|
|
|
|
void AffineBridge::outerDispatch(bool loop)
|
|
{
|
|
OSL_ASSERT(m_outerThreadId == osl::Thread::getCurrentIdentifier());
|
|
OSL_ASSERT(m_innerThreadId != m_outerThreadId);
|
|
|
|
Msg mm;
|
|
|
|
do
|
|
{
|
|
// FIXME: created outer thread must not wait
|
|
// in case of no message
|
|
// note: no message can happen in case newly created
|
|
// outer thread acquire outerMutex after a real outer
|
|
// thread enters outerDispatch!
|
|
m_outerCondition.wait();
|
|
m_outerCondition.reset();
|
|
|
|
mm = m_message;
|
|
|
|
switch(mm)
|
|
{
|
|
case CB_DONE:
|
|
break;
|
|
|
|
case CB_FPOINTER:
|
|
{
|
|
m_pCallee(m_pParam);
|
|
|
|
m_message = CB_DONE;
|
|
m_innerCondition.set();
|
|
break;
|
|
}
|
|
default:
|
|
abort();
|
|
}
|
|
}
|
|
while(mm != CB_DONE && loop);
|
|
}
|
|
|
|
void AffineBridge::innerDispatch()
|
|
{
|
|
OSL_ASSERT(m_innerThreadId == osl::Thread::getCurrentIdentifier());
|
|
OSL_ASSERT(m_innerThreadId != m_outerThreadId);
|
|
|
|
Msg mm;
|
|
|
|
do
|
|
{
|
|
m_innerCondition.wait();
|
|
m_innerCondition.reset();
|
|
|
|
mm = m_message;
|
|
|
|
switch(mm)
|
|
{
|
|
case CB_DONE:
|
|
break;
|
|
|
|
case CB_FPOINTER:
|
|
{
|
|
m_pCallee(m_pParam);
|
|
|
|
m_message = CB_DONE;
|
|
m_outerCondition.set();
|
|
break;
|
|
}
|
|
default:
|
|
abort();
|
|
}
|
|
}
|
|
while(mm != CB_DONE);
|
|
}
|
|
|
|
void AffineBridge::v_callInto_v(uno_EnvCallee * pCallee, va_list * pParam)
|
|
{
|
|
osl::MutexGuard guard(m_outerMutex); // only one thread at a time can call into
|
|
|
|
if (m_innerThreadId == 0) // no inner thread yet
|
|
{
|
|
m_pInnerThread.reset(new InnerThread(this));
|
|
}
|
|
|
|
bool bResetId = false;
|
|
if (!m_outerThreadId)
|
|
{
|
|
m_outerThreadId = osl::Thread::getCurrentIdentifier();
|
|
bResetId = true;
|
|
}
|
|
|
|
m_message = CB_FPOINTER;
|
|
m_pCallee = pCallee;
|
|
m_pParam = pParam;
|
|
m_innerCondition.set();
|
|
|
|
outerDispatch(true);
|
|
|
|
if (bResetId)
|
|
m_outerThreadId = 0;
|
|
}
|
|
|
|
void AffineBridge::v_callOut_v(uno_EnvCallee * pCallee, va_list * pParam)
|
|
{
|
|
OSL_ASSERT(m_innerThreadId);
|
|
|
|
osl::MutexGuard guard(m_innerMutex);
|
|
|
|
if (m_outerThreadId == 0) // no outer thread yet
|
|
{
|
|
osl::MutexGuard guard_m_outerMutex(m_outerMutex);
|
|
|
|
if (m_outerThreadId == 0)
|
|
{
|
|
if (m_pOuterThread)
|
|
{
|
|
m_pOuterThread->join();
|
|
}
|
|
|
|
m_pOuterThread.reset(new OuterThread(this));
|
|
}
|
|
}
|
|
|
|
m_message = CB_FPOINTER;
|
|
m_pCallee = pCallee;
|
|
m_pParam = pParam;
|
|
m_outerCondition.set();
|
|
|
|
innerDispatch();
|
|
}
|
|
|
|
void AffineBridge::v_enter()
|
|
{
|
|
m_innerMutex.acquire();
|
|
|
|
if (!m_enterCount)
|
|
m_innerThreadId = osl::Thread::getCurrentIdentifier();
|
|
|
|
OSL_ASSERT(m_innerThreadId == osl::Thread::getCurrentIdentifier());
|
|
|
|
++ m_enterCount;
|
|
}
|
|
|
|
void AffineBridge::v_leave()
|
|
{
|
|
OSL_ASSERT(m_innerThreadId == osl::Thread::getCurrentIdentifier());
|
|
|
|
-- m_enterCount;
|
|
if (!m_enterCount)
|
|
m_innerThreadId = 0;
|
|
|
|
m_innerMutex.release();
|
|
}
|
|
|
|
bool AffineBridge::v_isValid(OUString * pReason)
|
|
{
|
|
bool result = m_enterCount > 0;
|
|
if (!result)
|
|
*pReason = "not entered";
|
|
|
|
else
|
|
{
|
|
result = m_innerThreadId == osl::Thread::getCurrentIdentifier();
|
|
|
|
if (!result)
|
|
*pReason = "wrong thread";
|
|
}
|
|
|
|
if (result)
|
|
*pReason = "OK";
|
|
|
|
return result;
|
|
}
|
|
|
|
#ifdef DISABLE_DYNLOADING
|
|
|
|
#define uno_initEnvironment affine_uno_uno_initEnvironment
|
|
#define uno_ext_getMapping affine_uno_uno_ext_getMapping
|
|
|
|
#endif
|
|
|
|
extern "C" void SAL_DLLPUBLIC_EXPORT uno_initEnvironment(uno_Environment * pEnv)
|
|
SAL_THROW_EXTERN_C()
|
|
{
|
|
cppu::helper::purpenv::Environment_initWithEnterable(pEnv, new AffineBridge());
|
|
}
|
|
|
|
extern "C" void SAL_DLLPUBLIC_EXPORT uno_ext_getMapping(uno_Mapping ** ppMapping,
|
|
uno_Environment * pFrom,
|
|
uno_Environment * pTo )
|
|
{
|
|
cppu::helper::purpenv::createMapping(ppMapping, pFrom, pTo);
|
|
}
|
|
|
|
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
|