128 lines
3.6 KiB
C++
128 lines
3.6 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 "jvmaccess/virtualmachine.hxx"
|
|
|
|
#include "osl/diagnose.h"
|
|
|
|
using jvmaccess::VirtualMachine;
|
|
|
|
VirtualMachine::AttachGuard::CreationException::CreationException()
|
|
{}
|
|
|
|
VirtualMachine::AttachGuard::CreationException::CreationException(
|
|
CreationException const &)
|
|
{}
|
|
|
|
VirtualMachine::AttachGuard::CreationException::~CreationException()
|
|
{}
|
|
|
|
VirtualMachine::AttachGuard::CreationException &
|
|
VirtualMachine::AttachGuard::CreationException::operator =(
|
|
CreationException const &)
|
|
{
|
|
return *this;
|
|
}
|
|
|
|
VirtualMachine::AttachGuard::AttachGuard(
|
|
rtl::Reference< VirtualMachine > const & rMachine):
|
|
m_xMachine(rMachine)
|
|
{
|
|
OSL_ENSURE(m_xMachine.is(), "bad parameter");
|
|
m_pEnvironment = m_xMachine->attachThread(&m_bDetach);
|
|
if (m_pEnvironment == 0)
|
|
throw CreationException();
|
|
}
|
|
|
|
VirtualMachine::AttachGuard::~AttachGuard()
|
|
{
|
|
if (m_bDetach)
|
|
m_xMachine->detachThread();
|
|
}
|
|
|
|
VirtualMachine::VirtualMachine(JavaVM * pVm, int nVersion, bool bDestroy,
|
|
JNIEnv * pMainThreadEnv):
|
|
m_pVm(pVm), m_nVersion(nVersion), m_bDestroy(bDestroy)
|
|
{
|
|
(void) pMainThreadEnv; // avoid warnings
|
|
#ifdef SOLAR_JAVA
|
|
OSL_ENSURE(pVm != 0 && nVersion >= JNI_VERSION_1_2 && pMainThreadEnv != 0,
|
|
"bad parameter");
|
|
#endif
|
|
}
|
|
|
|
VirtualMachine::~VirtualMachine()
|
|
{
|
|
if (m_bDestroy)
|
|
{
|
|
// Do not destroy the VM. Under Java 1.3, the AWT event loop thread is
|
|
// not a daemon thread and is never terminated, so that calling
|
|
// DestroyJavaVM (waiting for all non-daemon threads to terminate) hangs
|
|
// forever.
|
|
/*
|
|
jint n = m_pVm->DestroyJavaVM();
|
|
OSL_ENSURE(n == JNI_OK, "JNI: DestroyJavaVM failed");
|
|
*/
|
|
}
|
|
}
|
|
|
|
JNIEnv * VirtualMachine::attachThread(bool * pAttached) const
|
|
{
|
|
#ifndef SOLAR_JAVA
|
|
(void) pAttached;
|
|
return 0;
|
|
#else
|
|
OSL_ENSURE(pAttached != 0, "bad parameter");
|
|
JNIEnv * pEnv;
|
|
jint n = m_pVm->GetEnv(reinterpret_cast< void ** >(&pEnv), m_nVersion);
|
|
if (n != JNI_OK && n != JNI_EDETACHED) {
|
|
OSL_FAIL("JNI: GetEnv failed");
|
|
}
|
|
if (pEnv == 0)
|
|
{
|
|
if (m_pVm->AttachCurrentThread
|
|
(
|
|
#ifndef ANDROID
|
|
reinterpret_cast< void ** >(&pEnv),
|
|
#else
|
|
// The Android <jni.h> has AttachCurrentThread() taking a
|
|
// JNIEnv** and not void **
|
|
&pEnv,
|
|
#endif
|
|
0)
|
|
!= JNI_OK)
|
|
return 0;
|
|
*pAttached = true;
|
|
}
|
|
else
|
|
*pAttached = false;
|
|
return pEnv;
|
|
#endif
|
|
}
|
|
|
|
void VirtualMachine::detachThread() const
|
|
{
|
|
#ifdef SOLAR_JAVA
|
|
if (m_pVm->DetachCurrentThread() != JNI_OK) {
|
|
OSL_FAIL("JNI: DetachCurrentThread failed");
|
|
}
|
|
#endif
|
|
}
|
|
|
|
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
|