INTEGRATION: CWS sb8 (1.1.2); FILE ADDED

2003/10/06 11:23:05 sb 1.1.2.2: #112127# Disambiguated ?: argument types.
2003/10/06 08:43:39 sb 1.1.2.1: #112127# Native implementation of Java NativeThreadPool.

1 files changed, 261 insertions, 0 deletions

diff --git a/bridges/source/jni_uno/nativethreadpool.cxx b/bridges/source/jni_uno/nativethreadpool.cxx
new file mode 100644
index 000000000000..f7c78b3397ef
--- /dev/null
+++ b/bridges/source/jni_uno/nativethreadpool.cxx
@@ -0,0 +1,261 @@
+/*************************************************************************
+ *
+ *  $RCSfile: nativethreadpool.cxx,v $
+ *
+ *  $Revision: 1.2 $
+ *
+ *  last change: $Author: vg $ $Date: 2003-10-09 10:20:05 $
+ *
+ *  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 "rtl/byteseq.h"
+#include "rtl/byteseq.hxx"
+#include "rtl/memory.h"
+#include "rtl/ref.hxx"
+#include "sal/types.h"
+#include "uno/threadpool.h"
+
+#include "jni.h"
+
+#include <new>
+
+/* The native implementation part of
+ * jurt/com/sun/star/lib/uno/environments/remote/NativeThreadPool.java.
+ */
+
+namespace {
+
+struct Pool {
+    Pool(rtl::Reference< jvmaccess::VirtualMachine > const & theVirtualMachine,
+         jmethodID theExecute, uno_ThreadPool thePool):
+        virtualMachine(theVirtualMachine), execute(theExecute), pool(thePool) {}
+
+    rtl::Reference< jvmaccess::VirtualMachine > virtualMachine;
+    jmethodID execute;
+    uno_ThreadPool pool;
+};
+
+struct Job {
+    Job(Pool * thePool, jobject theJob): pool(thePool), job(theJob) {}
+
+    Pool * pool;
+    jobject job;
+};
+
+void throwOutOfMemory(JNIEnv * env) {
+    jclass c = env->FindClass("java/lang/OutOfMemoryError");
+    if (c != 0) {
+        env->ThrowNew(c, "");
+    }
+}
+
+}
+
+extern "C" {
+
+static void SAL_CALL executeRequest(void * data) {
+    Job * job = static_cast< Job * >(data);
+    try {
+        jvmaccess::VirtualMachine::AttachGuard guard(job->pool->virtualMachine);
+        JNIEnv * env = guard.getEnvironment();
+        // Failure of the following Job.execute Java call is ignored; if that
+        // call fails, it should be due to a java.lang.Error, which is not
+        // handled well, anyway:
+        env->CallObjectMethod(job->job, job->pool->execute);
+        env->DeleteGlobalRef(job->job);
+        delete job;
+    } catch (jvmaccess::VirtualMachine::AttachGuard::CreationException & e) {
+        //TODO: DeleteGlobalRef(job->job)
+        delete job;
+    }
+}
+
+}
+
+extern "C" JNIEXPORT jbyteArray JNICALL
+Java_com_sun_star_lib_uno_environments_remote_NativeThreadPool_threadId(
+    JNIEnv * env, jclass) SAL_THROW_EXTERN_C()
+{
+    sal_Sequence * s = 0;
+    uno_getIdOfCurrentThread(&s); //TODO: out of memory
+    uno_releaseIdFromCurrentThread();
+    rtl::ByteSequence seq(s);
+    rtl_byte_sequence_release(s);
+    sal_Int32 n = seq.getLength();
+    jbyteArray a = env->NewByteArray(n);
+        // sal_Int32 and jsize are compatible here
+    if (a == 0) {
+        return 0;
+    }
+    void * p = env->GetPrimitiveArrayCritical(a, 0);
+    if (p == 0) {
+        return 0;
+    }
+    rtl_copyMemory(p, seq.getConstArray(), n);
+        // sal_Int8 and jbyte ought to be compatible
+    env->ReleasePrimitiveArrayCritical(a, p, 0);
+    return a;
+}
+
+extern "C" JNIEXPORT jlong JNICALL
+Java_com_sun_star_lib_uno_environments_remote_NativeThreadPool_create(
+    JNIEnv * env, jclass) SAL_THROW_EXTERN_C()
+{
+    JavaVM * vm;
+    if (env->GetJavaVM(&vm) != JNI_OK) { //TODO: no Java exception raised?
+        jclass c = env->FindClass("java/lang/RuntimeException");
+        if (c != 0) {
+            env->ThrowNew(c, "JNI GetJavaVM failed");
+        }
+        return 0;
+    }
+    jclass c = env->FindClass("com/sun/star/lib/uno/environments/remote/Job");
+    if (c == 0) {
+        return 0;
+    }
+    jmethodID execute = env->GetMethodID(c, "execute", "()Ljava/lang/Object;");
+    if (execute == 0) {
+        return 0;
+    }
+    try {
+        return reinterpret_cast< jlong >(new Pool(
+            new jvmaccess::VirtualMachine(vm, env->GetVersion(), false, env),
+            execute, uno_threadpool_create()));
+    } catch (std::bad_alloc) {
+        throwOutOfMemory(env);
+        return 0;
+    }
+}
+
+extern "C" JNIEXPORT void JNICALL
+Java_com_sun_star_lib_uno_environments_remote_NativeThreadPool_attach(
+    JNIEnv *, jclass, jlong pool) SAL_THROW_EXTERN_C()
+{
+    uno_threadpool_attach(reinterpret_cast< Pool * >(pool)->pool);
+}
+
+extern "C" JNIEXPORT jobject JNICALL
+Java_com_sun_star_lib_uno_environments_remote_NativeThreadPool_enter(
+    JNIEnv * env, jclass, jlong pool) SAL_THROW_EXTERN_C()
+{
+    jobject job;
+    uno_threadpool_enter(
+        reinterpret_cast< Pool * >(pool)->pool,
+        reinterpret_cast< void ** >(&job));
+    if (job == 0) {
+        return 0;
+    }
+    jobject ref = env->NewLocalRef(job);
+    env->DeleteGlobalRef(job);
+    return ref;
+}
+
+extern "C" JNIEXPORT void JNICALL
+Java_com_sun_star_lib_uno_environments_remote_NativeThreadPool_detach(
+    JNIEnv *, jclass, jlong pool) SAL_THROW_EXTERN_C()
+{
+    uno_threadpool_detach(reinterpret_cast< Pool * >(pool)->pool);
+}
+
+extern "C" JNIEXPORT void JNICALL
+Java_com_sun_star_lib_uno_environments_remote_NativeThreadPool_putJob(
+    JNIEnv * env, jclass, jlong pool, jbyteArray threadId, jobject job,
+    jboolean request, jboolean oneWay) SAL_THROW_EXTERN_C()
+{
+    void * s = env->GetPrimitiveArrayCritical(threadId, 0);
+    if (s == 0) {
+        return;
+    }
+    rtl::ByteSequence seq(
+        static_cast< sal_Int8 * >(s), env->GetArrayLength(threadId));
+        // sal_Int8 and jbyte ought to be compatible; sal_Int32 and jsize are
+        // compatible here
+        //TODO: out of memory
+    env->ReleasePrimitiveArrayCritical(threadId, s, JNI_ABORT);
+    Pool * p = reinterpret_cast< Pool * >(pool);
+    jobject ref = env->NewGlobalRef(job);
+    if (ref == 0) {
+        return;
+    }
+    Job * j = 0;
+    if (request) {
+        j = new(std::nothrow) Job(p, ref);
+        if (j == 0) {
+            env->DeleteGlobalRef(ref);
+            throwOutOfMemory(env);
+            return;
+        }
+    }
+    uno_threadpool_putJob(
+        p->pool, seq.getHandle(),
+        request ? static_cast< void * >(j) : static_cast< void * >(ref),
+        request ? executeRequest : 0, oneWay);
+}
+
+extern "C" JNIEXPORT void JNICALL
+Java_com_sun_star_lib_uno_environments_remote_NativeThreadPool_dispose(
+    JNIEnv *, jclass, jlong pool) SAL_THROW_EXTERN_C()
+{
+    uno_threadpool_dispose(reinterpret_cast< Pool * >(pool)->pool);
+}
+
+extern "C" JNIEXPORT void JNICALL
+Java_com_sun_star_lib_uno_environments_remote_NativeThreadPool_destroy(
+    JNIEnv *, jclass, jlong pool) SAL_THROW_EXTERN_C()
+{
+    Pool * p = reinterpret_cast< Pool * >(pool);
+    uno_threadpool_destroy(p->pool);
+    delete p;
+}