LCOV - code coverage report
Current view: top level - libreoffice/bridges/source/jni_uno - nativethreadpool.cxx (source / functions) Hit Total Coverage
Test: libreoffice_filtered.info Lines: 0 88 0.0 %
Date: 2012-12-27 Functions: 0 13 0.0 %
Legend: Lines: hit not hit

          Line data    Source code
       1             : /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
       2             : /*
       3             :  * This file is part of the LibreOffice project.
       4             :  *
       5             :  * This Source Code Form is subject to the terms of the Mozilla Public
       6             :  * License, v. 2.0. If a copy of the MPL was not distributed with this
       7             :  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
       8             :  *
       9             :  * This file incorporates work covered by the following license notice:
      10             :  *
      11             :  *   Licensed to the Apache Software Foundation (ASF) under one or more
      12             :  *   contributor license agreements. See the NOTICE file distributed
      13             :  *   with this work for additional information regarding copyright
      14             :  *   ownership. The ASF licenses this file to you under the Apache
      15             :  *   License, Version 2.0 (the "License"); you may not use this file
      16             :  *   except in compliance with the License. You may obtain a copy of
      17             :  *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
      18             :  */
      19             : 
      20             : 
      21             : #include <string.h>
      22             : #include "jvmaccess/virtualmachine.hxx"
      23             : #include "rtl/byteseq.h"
      24             : #include "rtl/byteseq.hxx"
      25             : #include "rtl/ref.hxx"
      26             : #include "sal/types.h"
      27             : #include "uno/threadpool.h"
      28             : 
      29             : #include "jni.h"
      30             : 
      31             : #include <new>
      32             : 
      33             : /* The native implementation part of
      34             :  * jurt/com/sun/star/lib/uno/environments/remote/NativeThreadPool.java.
      35             :  */
      36             : 
      37             : namespace {
      38             : 
      39           0 : struct Pool {
      40           0 :     Pool(rtl::Reference< jvmaccess::VirtualMachine > const & theVirtualMachine,
      41             :          jmethodID theExecute, uno_ThreadPool thePool):
      42           0 :         virtualMachine(theVirtualMachine), execute(theExecute), pool(thePool) {}
      43             : 
      44             :     rtl::Reference< jvmaccess::VirtualMachine > virtualMachine;
      45             :     jmethodID execute;
      46             :     uno_ThreadPool pool;
      47             : };
      48             : 
      49             : struct Job {
      50           0 :     Job(Pool * thePool, jobject theJob): pool(thePool), job(theJob) {}
      51             : 
      52             :     Pool * pool;
      53             :     jobject job;
      54             : };
      55             : 
      56           0 : void throwOutOfMemory(JNIEnv * env) {
      57           0 :     jclass c = env->FindClass("java/lang/OutOfMemoryError");
      58           0 :     if (c != 0) {
      59           0 :         env->ThrowNew(c, "");
      60             :     }
      61           0 : }
      62             : 
      63             : }
      64             : 
      65             : extern "C" {
      66             : 
      67           0 : static void SAL_CALL executeRequest(void * data) {
      68           0 :     Job * job = static_cast< Job * >(data);
      69             :     try {
      70           0 :         jvmaccess::VirtualMachine::AttachGuard guard(job->pool->virtualMachine);
      71           0 :         JNIEnv * env = guard.getEnvironment();
      72             :         // Failure of the following Job.execute Java call is ignored; if that
      73             :         // call fails, it should be due to a java.lang.Error, which is not
      74             :         // handled well, anyway:
      75           0 :         env->CallObjectMethod(job->job, job->pool->execute);
      76           0 :         env->DeleteGlobalRef(job->job);
      77           0 :         delete job;
      78           0 :     } catch (const jvmaccess::VirtualMachine::AttachGuard::CreationException &) {
      79             :         //TODO: DeleteGlobalRef(job->job)
      80           0 :         delete job;
      81             :     }
      82           0 : }
      83             : 
      84             : }
      85             : 
      86             : extern "C" SAL_JNI_EXPORT jbyteArray JNICALL
      87           0 : Java_com_sun_star_lib_uno_environments_remote_NativeThreadPool_threadId(
      88             :     JNIEnv * env, SAL_UNUSED_PARAMETER jclass) SAL_THROW_EXTERN_C()
      89             : {
      90           0 :     sal_Sequence * s = 0;
      91           0 :     uno_getIdOfCurrentThread(&s); //TODO: out of memory
      92           0 :     uno_releaseIdFromCurrentThread();
      93           0 :     rtl::ByteSequence seq(s);
      94           0 :     rtl_byte_sequence_release(s);
      95           0 :     sal_Int32 n = seq.getLength();
      96           0 :     jbyteArray a = env->NewByteArray(n);
      97             :         // sal_Int32 and jsize are compatible here
      98           0 :     if (a == 0) {
      99           0 :         return 0;
     100             :     }
     101           0 :     void * p = env->GetPrimitiveArrayCritical(a, 0);
     102           0 :     if (p == 0) {
     103           0 :         return 0;
     104             :     }
     105           0 :     memcpy(p, seq.getConstArray(), n);
     106             :         // sal_Int8 and jbyte ought to be compatible
     107           0 :     env->ReleasePrimitiveArrayCritical(a, p, 0);
     108           0 :     return a;
     109             : }
     110             : 
     111             : extern "C" SAL_JNI_EXPORT jlong JNICALL
     112           0 : Java_com_sun_star_lib_uno_environments_remote_NativeThreadPool_create(
     113             :     JNIEnv * env, SAL_UNUSED_PARAMETER jclass) SAL_THROW_EXTERN_C()
     114             : {
     115             :     JavaVM * vm;
     116           0 :     if (env->GetJavaVM(&vm) != JNI_OK) { //TODO: no Java exception raised?
     117           0 :         jclass c = env->FindClass("java/lang/RuntimeException");
     118           0 :         if (c != 0) {
     119           0 :             env->ThrowNew(c, "JNI GetJavaVM failed");
     120             :         }
     121           0 :         return 0;
     122             :     }
     123           0 :     jclass c = env->FindClass("com/sun/star/lib/uno/environments/remote/Job");
     124           0 :     if (c == 0) {
     125           0 :         return 0;
     126             :     }
     127           0 :     jmethodID execute = env->GetMethodID(c, "execute", "()Ljava/lang/Object;");
     128           0 :     if (execute == 0) {
     129           0 :         return 0;
     130             :     }
     131             :     try {
     132             :         return reinterpret_cast< jlong >(new Pool(
     133           0 :             new jvmaccess::VirtualMachine(vm, env->GetVersion(), false, env),
     134           0 :             execute, uno_threadpool_create()));
     135           0 :     } catch (const std::bad_alloc &) {
     136           0 :         throwOutOfMemory(env);
     137           0 :         return 0;
     138             :     }
     139             : }
     140             : 
     141             : extern "C" SAL_JNI_EXPORT void JNICALL
     142           0 : Java_com_sun_star_lib_uno_environments_remote_NativeThreadPool_attach(
     143             :     SAL_UNUSED_PARAMETER JNIEnv *, SAL_UNUSED_PARAMETER jclass, jlong pool)
     144             :     SAL_THROW_EXTERN_C()
     145             : {
     146           0 :     uno_threadpool_attach(reinterpret_cast< Pool * >(pool)->pool);
     147           0 : }
     148             : 
     149             : extern "C" SAL_JNI_EXPORT jobject JNICALL
     150           0 : Java_com_sun_star_lib_uno_environments_remote_NativeThreadPool_enter(
     151             :     JNIEnv * env, SAL_UNUSED_PARAMETER jclass, jlong pool) SAL_THROW_EXTERN_C()
     152             : {
     153             :     jobject job;
     154             :     uno_threadpool_enter(
     155             :         reinterpret_cast< Pool * >(pool)->pool,
     156           0 :         reinterpret_cast< void ** >(&job));
     157           0 :     if (job == 0) {
     158           0 :         return 0;
     159             :     }
     160           0 :     jobject ref = env->NewLocalRef(job);
     161           0 :     env->DeleteGlobalRef(job);
     162           0 :     return ref;
     163             : }
     164             : 
     165             : extern "C" SAL_JNI_EXPORT void JNICALL
     166           0 : Java_com_sun_star_lib_uno_environments_remote_NativeThreadPool_detach(
     167             :     SAL_UNUSED_PARAMETER JNIEnv *, SAL_UNUSED_PARAMETER jclass, jlong pool)
     168             :     SAL_THROW_EXTERN_C()
     169             : {
     170           0 :     uno_threadpool_detach(reinterpret_cast< Pool * >(pool)->pool);
     171           0 : }
     172             : 
     173             : extern "C" SAL_JNI_EXPORT void JNICALL
     174           0 : Java_com_sun_star_lib_uno_environments_remote_NativeThreadPool_putJob(
     175             :     JNIEnv * env, SAL_UNUSED_PARAMETER jclass, jlong pool, jbyteArray threadId,
     176             :     jobject job, jboolean request, jboolean oneWay) SAL_THROW_EXTERN_C()
     177             : {
     178           0 :     void * s = env->GetPrimitiveArrayCritical(threadId, 0);
     179           0 :     if (s == 0) {
     180             :         return;
     181             :     }
     182             :     rtl::ByteSequence seq(
     183           0 :         static_cast< sal_Int8 * >(s), env->GetArrayLength(threadId));
     184             :         // sal_Int8 and jbyte ought to be compatible; sal_Int32 and jsize are
     185             :         // compatible here
     186             :         //TODO: out of memory
     187           0 :     env->ReleasePrimitiveArrayCritical(threadId, s, JNI_ABORT);
     188           0 :     Pool * p = reinterpret_cast< Pool * >(pool);
     189           0 :     jobject ref = env->NewGlobalRef(job);
     190           0 :     if (ref == 0) {
     191             :         return;
     192             :     }
     193           0 :     Job * j = 0;
     194           0 :     if (request) {
     195           0 :         j = new(std::nothrow) Job(p, ref);
     196           0 :         if (j == 0) {
     197           0 :             env->DeleteGlobalRef(ref);
     198           0 :             throwOutOfMemory(env);
     199             :             return;
     200             :         }
     201             :     }
     202             :     uno_threadpool_putJob(
     203             :         p->pool, seq.getHandle(),
     204             :         request ? static_cast< void * >(j) : static_cast< void * >(ref),
     205           0 :         request ? executeRequest : 0, oneWay);
     206             : }
     207             : 
     208             : extern "C" SAL_JNI_EXPORT void JNICALL
     209           0 : Java_com_sun_star_lib_uno_environments_remote_NativeThreadPool_dispose(
     210             :     SAL_UNUSED_PARAMETER JNIEnv *, SAL_UNUSED_PARAMETER jclass, jlong pool)
     211             :     SAL_THROW_EXTERN_C()
     212             : {
     213           0 :     uno_threadpool_dispose(reinterpret_cast< Pool * >(pool)->pool);
     214           0 : }
     215             : 
     216             : extern "C" SAL_JNI_EXPORT void JNICALL
     217           0 : Java_com_sun_star_lib_uno_environments_remote_NativeThreadPool_destroy(
     218             :     SAL_UNUSED_PARAMETER JNIEnv *, SAL_UNUSED_PARAMETER jclass, jlong pool)
     219             :     SAL_THROW_EXTERN_C()
     220             : {
     221           0 :     Pool * p = reinterpret_cast< Pool * >(pool);
     222           0 :     uno_threadpool_destroy(p->pool);
     223           0 :     delete p;
     224           0 : }
     225             : 
     226             : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */

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