1*cdf0e10cSrcweir /************************************************************************* 2*cdf0e10cSrcweir * 3*cdf0e10cSrcweir * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4*cdf0e10cSrcweir * 5*cdf0e10cSrcweir * Copyright 2000, 2010 Oracle and/or its affiliates. 6*cdf0e10cSrcweir * 7*cdf0e10cSrcweir * OpenOffice.org - a multi-platform office productivity suite 8*cdf0e10cSrcweir * 9*cdf0e10cSrcweir * This file is part of OpenOffice.org. 10*cdf0e10cSrcweir * 11*cdf0e10cSrcweir * OpenOffice.org is free software: you can redistribute it and/or modify 12*cdf0e10cSrcweir * it under the terms of the GNU Lesser General Public License version 3 13*cdf0e10cSrcweir * only, as published by the Free Software Foundation. 14*cdf0e10cSrcweir * 15*cdf0e10cSrcweir * OpenOffice.org is distributed in the hope that it will be useful, 16*cdf0e10cSrcweir * but WITHOUT ANY WARRANTY; without even the implied warranty of 17*cdf0e10cSrcweir * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 18*cdf0e10cSrcweir * GNU Lesser General Public License version 3 for more details 19*cdf0e10cSrcweir * (a copy is included in the LICENSE file that accompanied this code). 20*cdf0e10cSrcweir * 21*cdf0e10cSrcweir * You should have received a copy of the GNU Lesser General Public License 22*cdf0e10cSrcweir * version 3 along with OpenOffice.org. If not, see 23*cdf0e10cSrcweir * <http://www.openoffice.org/license.html> 24*cdf0e10cSrcweir * for a copy of the LGPLv3 License. 25*cdf0e10cSrcweir * 26*cdf0e10cSrcweir ************************************************************************/ 27*cdf0e10cSrcweir 28*cdf0e10cSrcweir #include "jvmaccess/virtualmachine.hxx" 29*cdf0e10cSrcweir 30*cdf0e10cSrcweir #include "osl/diagnose.h" 31*cdf0e10cSrcweir 32*cdf0e10cSrcweir using jvmaccess::VirtualMachine; 33*cdf0e10cSrcweir 34*cdf0e10cSrcweir VirtualMachine::AttachGuard::CreationException::CreationException() 35*cdf0e10cSrcweir {} 36*cdf0e10cSrcweir 37*cdf0e10cSrcweir VirtualMachine::AttachGuard::CreationException::CreationException( 38*cdf0e10cSrcweir CreationException const &) 39*cdf0e10cSrcweir {} 40*cdf0e10cSrcweir 41*cdf0e10cSrcweir VirtualMachine::AttachGuard::CreationException::~CreationException() 42*cdf0e10cSrcweir {} 43*cdf0e10cSrcweir 44*cdf0e10cSrcweir VirtualMachine::AttachGuard::CreationException & 45*cdf0e10cSrcweir VirtualMachine::AttachGuard::CreationException::operator =( 46*cdf0e10cSrcweir CreationException const &) 47*cdf0e10cSrcweir { 48*cdf0e10cSrcweir return *this; 49*cdf0e10cSrcweir } 50*cdf0e10cSrcweir 51*cdf0e10cSrcweir VirtualMachine::AttachGuard::AttachGuard( 52*cdf0e10cSrcweir rtl::Reference< VirtualMachine > const & rMachine): 53*cdf0e10cSrcweir m_xMachine(rMachine) 54*cdf0e10cSrcweir { 55*cdf0e10cSrcweir OSL_ENSURE(m_xMachine.is(), "bad parameter"); 56*cdf0e10cSrcweir m_pEnvironment = m_xMachine->attachThread(&m_bDetach); 57*cdf0e10cSrcweir if (m_pEnvironment == 0) 58*cdf0e10cSrcweir throw CreationException(); 59*cdf0e10cSrcweir } 60*cdf0e10cSrcweir 61*cdf0e10cSrcweir VirtualMachine::AttachGuard::~AttachGuard() 62*cdf0e10cSrcweir { 63*cdf0e10cSrcweir if (m_bDetach) 64*cdf0e10cSrcweir m_xMachine->detachThread(); 65*cdf0e10cSrcweir } 66*cdf0e10cSrcweir 67*cdf0e10cSrcweir VirtualMachine::VirtualMachine(JavaVM * pVm, int nVersion, bool bDestroy, 68*cdf0e10cSrcweir JNIEnv * pMainThreadEnv): 69*cdf0e10cSrcweir m_pVm(pVm), m_nVersion(nVersion), m_bDestroy(bDestroy) 70*cdf0e10cSrcweir { 71*cdf0e10cSrcweir (void) pMainThreadEnv; // avoid warnings 72*cdf0e10cSrcweir #ifdef SOLAR_JAVA 73*cdf0e10cSrcweir OSL_ENSURE(pVm != 0 && nVersion >= JNI_VERSION_1_2 && pMainThreadEnv != 0, 74*cdf0e10cSrcweir "bad parameter"); 75*cdf0e10cSrcweir #endif 76*cdf0e10cSrcweir } 77*cdf0e10cSrcweir 78*cdf0e10cSrcweir VirtualMachine::~VirtualMachine() 79*cdf0e10cSrcweir { 80*cdf0e10cSrcweir if (m_bDestroy) 81*cdf0e10cSrcweir { 82*cdf0e10cSrcweir // Do not destroy the VM. Under Java 1.3, the AWT event loop thread is 83*cdf0e10cSrcweir // not a daemon thread and is never terminated, so that calling 84*cdf0e10cSrcweir // DestroyJavaVM (waiting for all non-daemon threads to terminate) hangs 85*cdf0e10cSrcweir // forever. 86*cdf0e10cSrcweir /* 87*cdf0e10cSrcweir jint n = m_pVm->DestroyJavaVM(); 88*cdf0e10cSrcweir OSL_ENSURE(n == JNI_OK, "JNI: DestroyJavaVM failed"); 89*cdf0e10cSrcweir */ 90*cdf0e10cSrcweir } 91*cdf0e10cSrcweir } 92*cdf0e10cSrcweir 93*cdf0e10cSrcweir JNIEnv * VirtualMachine::attachThread(bool * pAttached) const 94*cdf0e10cSrcweir { 95*cdf0e10cSrcweir #ifndef SOLAR_JAVA 96*cdf0e10cSrcweir return 0; 97*cdf0e10cSrcweir #else 98*cdf0e10cSrcweir OSL_ENSURE(pAttached != 0, "bad parameter"); 99*cdf0e10cSrcweir JNIEnv * pEnv; 100*cdf0e10cSrcweir jint n = m_pVm->GetEnv(reinterpret_cast< void ** >(&pEnv), m_nVersion); 101*cdf0e10cSrcweir if (n != JNI_OK && n != JNI_EDETACHED) { 102*cdf0e10cSrcweir OSL_ENSURE(false, "JNI: GetEnv failed"); 103*cdf0e10cSrcweir } 104*cdf0e10cSrcweir if (pEnv == 0) 105*cdf0e10cSrcweir { 106*cdf0e10cSrcweir if (m_pVm->AttachCurrentThread(reinterpret_cast< void ** >(&pEnv), 0) 107*cdf0e10cSrcweir != JNI_OK) 108*cdf0e10cSrcweir return 0; 109*cdf0e10cSrcweir *pAttached = true; 110*cdf0e10cSrcweir } 111*cdf0e10cSrcweir else 112*cdf0e10cSrcweir *pAttached = false; 113*cdf0e10cSrcweir return pEnv; 114*cdf0e10cSrcweir #endif 115*cdf0e10cSrcweir } 116*cdf0e10cSrcweir 117*cdf0e10cSrcweir void VirtualMachine::detachThread() const 118*cdf0e10cSrcweir { 119*cdf0e10cSrcweir #ifdef SOLAR_JAVA 120*cdf0e10cSrcweir if (m_pVm->DetachCurrentThread() != JNI_OK) { 121*cdf0e10cSrcweir OSL_ENSURE(false, "JNI: DetachCurrentThread failed"); 122*cdf0e10cSrcweir } 123*cdf0e10cSrcweir #endif 124*cdf0e10cSrcweir } 125