#105077#

2 files changed, 266 insertions, 0 deletions

diff --git a/jvmaccess/source/makefile.mk b/jvmaccess/source/makefile.mk
new file mode 100644
index 000000000000..f6a34ba39858
--- /dev/null
+++ b/jvmaccess/source/makefile.mk
@@ -0,0 +1,73 @@
+#*************************************************************************
+#
+#   $RCSfile: makefile.mk,v $
+#
+#   $Revision: 1.1 $
+#
+#   last change: $Author: sb $ $Date: 2002-12-06 11:35:36 $
+#
+#   The Contents of this file are made available subject to the terms of
+#   either of the following licenses
+#
+#          - GNU Lesser General Public License Version 2.1
+#          - Sun Industry Standards Source License Version 1.1
+#
+#   Sun Microsystems Inc., October, 2000
+#
+#   GNU Lesser General Public License Version 2.1
+#   =============================================
+#   Copyright 2000 by Sun Microsystems, Inc.
+#   901 San Antonio Road, Palo Alto, CA 94303, USA
+#
+#   This library is free software; you can redistribute it and/or
+#   modify it under the terms of the GNU Lesser General Public
+#   License version 2.1, as published by the Free Software Foundation.
+#
+#   This library is distributed in the hope that it will be useful,
+#   but WITHOUT ANY WARRANTY; without even the implied warranty of
+#   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+#   Lesser General Public License for more details.
+#
+#   You should have received a copy of the GNU Lesser General Public
+#   License along with this library; if not, write to the Free Software
+#   Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+#   MA  02111-1307  USA
+#
+#
+#   Sun Industry Standards Source License Version 1.1
+#   =================================================
+#   The contents of this file are subject to the Sun Industry Standards
+#   Source License Version 1.1 (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.openoffice.org/license.html.
+#
+#   Software provided under this License is provided on an "AS IS" basis,
+#   WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING,
+#   WITHOUT LIMITATION, WARRANTIES THAT THE SOFTWARE IS FREE OF DEFECTS,
+#   MERCHANTABLE, FIT FOR A PARTICULAR PURPOSE, OR NON-INFRINGING.
+#   See the License for the specific provisions governing your rights and
+#   obligations concerning the Software.
+#
+#   The Initial Developer of the Original Code is: Sun Microsystems, Inc.
+#
+#   Copyright: 2000 by Sun Microsystems, Inc.
+#
+#   All Rights Reserved.
+#
+#   Contributor(s): _______________________________________
+#
+#
+#*************************************************************************
+
+PRJ = ..
+PRJNAME = jvmaccess
+TARGET = $(PRJNAME)
+
+ENABLE_EXCEPTIONS = TRUE
+
+.INCLUDE: settings.mk
+
+SLOFILES = \
+    $(SLO)$/virtualmachine.obj
+
+.INCLUDE: target.mk
diff --git a/jvmaccess/source/virtualmachine.cxx b/jvmaccess/source/virtualmachine.cxx
new file mode 100644
index 000000000000..13edcba11f06
--- /dev/null
+++ b/jvmaccess/source/virtualmachine.cxx
@@ -0,0 +1,193 @@
+/*************************************************************************
+ *
+ *  $RCSfile: virtualmachine.cxx,v $
+ *
+ *  $Revision: 1.1 $
+ *
+ *  last change: $Author: sb $ $Date: 2002-12-06 11:35:36 $
+ *
+ *  The Contents of this file are made available subject to the terms of
+ *  either of the following licenses
+ *
+ *         - GNU Lesser General Public License Version 2.1
+ *         - Sun Industry Standards Source License Version 1.1
+ *
+ *  Sun Microsystems Inc., October, 2000
+ *
+ *  GNU Lesser General Public License Version 2.1
+ *  =============================================
+ *  Copyright 2000 by Sun Microsystems, Inc.
+ *  901 San Antonio Road, Palo Alto, CA 94303, USA
+ *
+ *  This library is free software; you can redistribute it and/or
+ *  modify it under the terms of the GNU Lesser General Public
+ *  License version 2.1, as published by the Free Software Foundation.
+ *
+ *  This library is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ *  Lesser General Public License for more details.
+ *
+ *  You should have received a copy of the GNU Lesser General Public
+ *  License along with this library; if not, write to the Free Software
+ *  Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ *  MA  02111-1307  USA
+ *
+ *
+ *  Sun Industry Standards Source License Version 1.1
+ *  =================================================
+ *  The contents of this file are subject to the Sun Industry Standards
+ *  Source License Version 1.1 (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.openoffice.org/license.html.
+ *
+ *  Software provided under this License is provided on an "AS IS" basis,
+ *  WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING,
+ *  WITHOUT LIMITATION, WARRANTIES THAT THE SOFTWARE IS FREE OF DEFECTS,
+ *  MERCHANTABLE, FIT FOR A PARTICULAR PURPOSE, OR NON-INFRINGING.
+ *  See the License for the specific provisions governing your rights and
+ *  obligations concerning the Software.
+ *
+ *  The Initial Developer of the Original Code is: Sun Microsystems, Inc.
+ *
+ *  Copyright: 2000 by Sun Microsystems, Inc.
+ *
+ *  All Rights Reserved.
+ *
+ *  Contributor(s): _______________________________________
+ *
+ *
+ ************************************************************************/
+
+#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, jint nVersion, bool bDestroy,
+                               JNIEnv * pMainThreadEnv):
+    m_pVm(pVm), m_nVersion(nVersion), m_bDestroy(bDestroy)
+{
+    OSL_ENSURE(pVm != 0 && nVersion >= JNI_VERSION_1_2 && pMainThreadEnv != 0,
+               "bad parameter");
+    acquireInitialContextClassLoader(pMainThreadEnv);
+}
+
+VirtualMachine::~VirtualMachine()
+{
+    releaseInitialContextClassLoader();
+    if (m_bDestroy)
+    {
+        jint n = m_pVm->DestroyJavaVM();
+        OSL_ENSURE(n == JNI_OK, "JNI: DestroyJavaVM failed");
+    }
+}
+
+void VirtualMachine::acquireInitialContextClassLoader(JNIEnv * pEnv)
+{
+    jclass aClass = pEnv->FindClass("java/lang/Thread");
+    jmethodID aMethod1 = pEnv->GetStaticMethodID(aClass, "currentThread",
+                                                 "()Ljava/lang/Thread;");
+    jobject aThread = pEnv->CallStaticObjectMethod(aClass, aMethod1);
+    jmethodID aMethod2 = pEnv->GetMethodID(aClass, "getContextClassLoader",
+                                           "()Ljava/lang/ClassLoader;");
+    jobject aClassLoader = pEnv->CallObjectMethod(aThread, aMethod2);
+    OSL_ENSURE(!pEnv->ExceptionCheck(), "JNI: exception occured");
+    pEnv->ExceptionClear();
+    if (aClassLoader == 0)
+        m_aInitialContextClassLoader = 0;
+    else
+    {
+        m_aInitialContextClassLoader = pEnv->NewGlobalRef(aClassLoader);
+        OSL_ENSURE(m_aInitialContextClassLoader != 0,
+                   "JNI: NewGlobalRef failed");
+    }
+}
+
+void VirtualMachine::releaseInitialContextClassLoader() const
+{
+    if (m_aInitialContextClassLoader != 0)
+    {
+        JNIEnv * pEnv;
+        jint n = m_pVm->AttachCurrentThread(reinterpret_cast< void ** >(&pEnv),
+                                            0);
+        OSL_ENSURE(n == JNI_OK, "JNI: AttachCurrentThread failed");
+        if (n == JNI_OK)
+        {
+            pEnv->DeleteGlobalRef(m_aInitialContextClassLoader);
+            n = m_pVm->DetachCurrentThread();
+            OSL_ENSURE(n == JNI_OK, "JNI: DetachCurrentThread failed");
+        }
+    }
+}
+
+JNIEnv * VirtualMachine::attachThread(bool * pAttached) const
+{
+    OSL_ENSURE(pAttached != 0, "bad parameter");
+    JNIEnv * pEnv;
+    jint n = m_pVm->GetEnv(reinterpret_cast< void ** >(&pEnv), m_nVersion);
+    OSL_ENSURE(n == JNI_OK || n == JNI_EDETACHED, "JNI: GetEnv failed");
+    if (pEnv == 0)
+    {
+        if (m_pVm->AttachCurrentThread(reinterpret_cast< void ** >(&pEnv), 0)
+            != JNI_OK)
+            return 0;
+        if (m_aInitialContextClassLoader != 0)
+        {
+            jclass aClass = pEnv->FindClass("java/lang/Thread");
+            jmethodID aMethod1 = pEnv->GetStaticMethodID(
+                aClass, "currentThread", "()Ljava/lang/Thread;");
+            jobject aThread = pEnv->CallStaticObjectMethod(aClass, aMethod1);
+            jmethodID aMethod2 = pEnv->GetMethodID(
+                aClass, "setContextClassLoader", "(Ljava/lang/ClassLoader;)V");
+            pEnv->CallObjectMethod(aThread, aMethod2,
+                                   m_aInitialContextClassLoader);
+            OSL_ENSURE(!pEnv->ExceptionCheck(), "JNI: exception occured");
+            pEnv->ExceptionClear();
+        }
+        *pAttached = true;
+    }
+    else
+        *pAttached = false;
+    return pEnv;
+}
+
+void VirtualMachine::detachThread() const
+{
+    jint n = m_pVm->DetachCurrentThread();
+    OSL_ENSURE(n == JNI_OK, "JNI: DetachCurrentThread failed");
+}