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2 *
3 * Licensed to the Apache Software Foundation (ASF) under one
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8 * "License"); you may not use this file except in compliance
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11 * http://www.apache.org/licenses/LICENSE-2.0
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13 * Unless required by applicable law or agreed to in writing,
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15 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
16 * KIND, either express or implied. See the License for the
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18 * under the License.
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21
22
23
24 // MARKER(update_precomp.py): autogen include statement, do not remove
25 #include "precompiled_bridges.hxx"
26
27 #include "jvmaccess/virtualmachine.hxx"
28 #include "rtl/byteseq.h"
29 #include "rtl/byteseq.hxx"
30 #include "rtl/memory.h"
31 #include "rtl/ref.hxx"
32 #include "sal/types.h"
33 #include "uno/threadpool.h"
34
35 #include "jni.h"
36
37 #include <new>
38
39 /* The native implementation part of
40 * jurt/com/sun/star/lib/uno/environments/remote/NativeThreadPool.java.
41 */
42
43 namespace {
44
45 struct Pool {
Pool__anon390481890111::Pool46 Pool(rtl::Reference< jvmaccess::VirtualMachine > const & theVirtualMachine,
47 jmethodID theExecute, uno_ThreadPool thePool):
48 virtualMachine(theVirtualMachine), execute(theExecute), pool(thePool) {}
49
50 rtl::Reference< jvmaccess::VirtualMachine > virtualMachine;
51 jmethodID execute;
52 uno_ThreadPool pool;
53 };
54
55 struct Job {
Job__anon390481890111::Job56 Job(Pool * thePool, jobject theJob): pool(thePool), job(theJob) {}
57
58 Pool * pool;
59 jobject job;
60 };
61
throwOutOfMemory(JNIEnv * env)62 void throwOutOfMemory(JNIEnv * env) {
63 jclass c = env->FindClass("java/lang/OutOfMemoryError");
64 if (c != 0) {
65 env->ThrowNew(c, "");
66 }
67 }
68
69 }
70
71 extern "C" {
72
executeRequest(void * data)73 static void SAL_CALL executeRequest(void * data) {
74 Job * job = static_cast< Job * >(data);
75 try {
76 jvmaccess::VirtualMachine::AttachGuard guard(job->pool->virtualMachine);
77 JNIEnv * env = guard.getEnvironment();
78 // Failure of the following Job.execute Java call is ignored; if that
79 // call fails, it should be due to a java.lang.Error, which is not
80 // handled well, anyway:
81 env->CallObjectMethod(job->job, job->pool->execute);
82 env->DeleteGlobalRef(job->job);
83 delete job;
84 } catch (jvmaccess::VirtualMachine::AttachGuard::CreationException &) {
85 //TODO: DeleteGlobalRef(job->job)
86 delete job;
87 }
88 }
89
90 }
91
92 extern "C" JNIEXPORT jbyteArray JNICALL
Java_com_sun_star_lib_uno_environments_remote_NativeThreadPool_threadId(JNIEnv * env,jclass)93 Java_com_sun_star_lib_uno_environments_remote_NativeThreadPool_threadId(
94 JNIEnv * env, jclass) SAL_THROW_EXTERN_C()
95 {
96 sal_Sequence * s = 0;
97 uno_getIdOfCurrentThread(&s); //TODO: out of memory
98 uno_releaseIdFromCurrentThread();
99 rtl::ByteSequence seq(s);
100 rtl_byte_sequence_release(s);
101 sal_Int32 n = seq.getLength();
102 jbyteArray a = env->NewByteArray(n);
103 // sal_Int32 and jsize are compatible here
104 if (a == 0) {
105 return 0;
106 }
107 void * p = env->GetPrimitiveArrayCritical(a, 0);
108 if (p == 0) {
109 return 0;
110 }
111 rtl_copyMemory(p, seq.getConstArray(), n);
112 // sal_Int8 and jbyte ought to be compatible
113 env->ReleasePrimitiveArrayCritical(a, p, 0);
114 return a;
115 }
116
117 extern "C" JNIEXPORT jlong JNICALL
Java_com_sun_star_lib_uno_environments_remote_NativeThreadPool_create(JNIEnv * env,jclass)118 Java_com_sun_star_lib_uno_environments_remote_NativeThreadPool_create(
119 JNIEnv * env, jclass) SAL_THROW_EXTERN_C()
120 {
121 JavaVM * vm;
122 if (env->GetJavaVM(&vm) != JNI_OK) { //TODO: no Java exception raised?
123 jclass c = env->FindClass("java/lang/RuntimeException");
124 if (c != 0) {
125 env->ThrowNew(c, "JNI GetJavaVM failed");
126 }
127 return 0;
128 }
129 jclass c = env->FindClass("com/sun/star/lib/uno/environments/remote/Job");
130 if (c == 0) {
131 return 0;
132 }
133 jmethodID execute = env->GetMethodID(c, "execute", "()Ljava/lang/Object;");
134 if (execute == 0) {
135 return 0;
136 }
137 try {
138 return reinterpret_cast< jlong >(new Pool(
139 new jvmaccess::VirtualMachine(vm, env->GetVersion(), false, env),
140 execute, uno_threadpool_create()));
141 } catch (std::bad_alloc) {
142 throwOutOfMemory(env);
143 return 0;
144 }
145 }
146
147 extern "C" JNIEXPORT void JNICALL
Java_com_sun_star_lib_uno_environments_remote_NativeThreadPool_attach(JNIEnv *,jclass,jlong pool)148 Java_com_sun_star_lib_uno_environments_remote_NativeThreadPool_attach(
149 JNIEnv *, jclass, jlong pool) SAL_THROW_EXTERN_C()
150 {
151 uno_threadpool_attach(reinterpret_cast< Pool * >(pool)->pool);
152 }
153
154 extern "C" JNIEXPORT jobject JNICALL
Java_com_sun_star_lib_uno_environments_remote_NativeThreadPool_enter(JNIEnv * env,jclass,jlong pool)155 Java_com_sun_star_lib_uno_environments_remote_NativeThreadPool_enter(
156 JNIEnv * env, jclass, jlong pool) SAL_THROW_EXTERN_C()
157 {
158 jobject job;
159 uno_threadpool_enter(
160 reinterpret_cast< Pool * >(pool)->pool,
161 reinterpret_cast< void ** >(&job));
162 if (job == 0) {
163 return 0;
164 }
165 jobject ref = env->NewLocalRef(job);
166 env->DeleteGlobalRef(job);
167 return ref;
168 }
169
170 extern "C" JNIEXPORT void JNICALL
Java_com_sun_star_lib_uno_environments_remote_NativeThreadPool_detach(JNIEnv *,jclass,jlong pool)171 Java_com_sun_star_lib_uno_environments_remote_NativeThreadPool_detach(
172 JNIEnv *, jclass, jlong pool) SAL_THROW_EXTERN_C()
173 {
174 uno_threadpool_detach(reinterpret_cast< Pool * >(pool)->pool);
175 }
176
177 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)178 Java_com_sun_star_lib_uno_environments_remote_NativeThreadPool_putJob(
179 JNIEnv * env, jclass, jlong pool, jbyteArray threadId, jobject job,
180 jboolean request, jboolean oneWay) SAL_THROW_EXTERN_C()
181 {
182 void * s = env->GetPrimitiveArrayCritical(threadId, 0);
183 if (s == 0) {
184 return;
185 }
186 rtl::ByteSequence seq(
187 static_cast< sal_Int8 * >(s), env->GetArrayLength(threadId));
188 // sal_Int8 and jbyte ought to be compatible; sal_Int32 and jsize are
189 // compatible here
190 //TODO: out of memory
191 env->ReleasePrimitiveArrayCritical(threadId, s, JNI_ABORT);
192 Pool * p = reinterpret_cast< Pool * >(pool);
193 jobject ref = env->NewGlobalRef(job);
194 if (ref == 0) {
195 return;
196 }
197 Job * j = 0;
198 if (request) {
199 j = new(std::nothrow) Job(p, ref);
200 if (j == 0) {
201 env->DeleteGlobalRef(ref);
202 throwOutOfMemory(env);
203 return;
204 }
205 }
206 uno_threadpool_putJob(
207 p->pool, seq.getHandle(),
208 request ? static_cast< void * >(j) : static_cast< void * >(ref),
209 request ? executeRequest : 0, oneWay);
210 }
211
212 extern "C" JNIEXPORT void JNICALL
Java_com_sun_star_lib_uno_environments_remote_NativeThreadPool_dispose(JNIEnv *,jclass,jlong pool)213 Java_com_sun_star_lib_uno_environments_remote_NativeThreadPool_dispose(
214 JNIEnv *, jclass, jlong pool) SAL_THROW_EXTERN_C()
215 {
216 uno_threadpool_dispose(reinterpret_cast< Pool * >(pool)->pool);
217 }
218
219 extern "C" JNIEXPORT void JNICALL
Java_com_sun_star_lib_uno_environments_remote_NativeThreadPool_destroy(JNIEnv *,jclass,jlong pool)220 Java_com_sun_star_lib_uno_environments_remote_NativeThreadPool_destroy(
221 JNIEnv *, jclass, jlong pool) SAL_THROW_EXTERN_C()
222 {
223 Pool * p = reinterpret_cast< Pool * >(pool);
224 uno_threadpool_destroy(p->pool);
225 delete p;
226 }
227