1 /* Functions related to the java task instances. */
3 /* Copyright (c) 2007-2017. The SimGrid Team. All rights reserved. */
5 /* This program is free software; you can redistribute it and/or modify it
6 * under the terms of the license (GNU LGPL) which comes with this package. */
8 #include "simgrid/s4u/Host.hpp"
11 #include "jmsg_host.h"
12 #include "jmsg_task.h"
13 #include "jmsg_process.h"
14 #include "jxbt_utilities.h"
16 XBT_LOG_EXTERNAL_DEFAULT_CATEGORY(java);
20 static jmethodID jtask_method_Comm_constructor;
22 static jfieldID jtask_field_Task_bind;
23 static jfieldID jtask_field_Task_name;
24 static jfieldID jtask_field_Task_messageSize;
25 static jfieldID jtask_field_Comm_bind;
26 static jfieldID jtask_field_Comm_taskBind;
27 static jfieldID jtask_field_Comm_receiving;
29 void jtask_bind(jobject jtask, msg_task_t task, JNIEnv * env)
31 env->SetLongField(jtask, jtask_field_Task_bind, (intptr_t)task);
34 msg_task_t jtask_to_native(jobject jtask, JNIEnv* env)
36 return (msg_task_t)(intptr_t)env->GetLongField(jtask, jtask_field_Task_bind);
39 JNIEXPORT void JNICALL Java_org_simgrid_msg_Task_nativeInit(JNIEnv *env, jclass cls) {
40 jclass jtask_class_Comm = env->FindClass("org/simgrid/msg/Comm");
41 jclass jtask_class_Task = env->FindClass("org/simgrid/msg/Task");
42 xbt_assert(jtask_class_Comm && jtask_class_Task,
43 "Native initialization of msg/Comm or msg/Task failed. Please report that bug");
45 jtask_method_Comm_constructor = env->GetMethodID(jtask_class_Comm, "<init>", "()V");
46 jtask_field_Task_bind = jxbt_get_jfield(env, jtask_class_Task, "bind", "J");
47 jtask_field_Task_name = jxbt_get_jfield(env, jtask_class_Task, "name", "Ljava/lang/String;");
48 jtask_field_Task_messageSize = jxbt_get_jfield(env, jtask_class_Task, "messageSize", "D");
49 jtask_field_Comm_bind = jxbt_get_jfield(env, jtask_class_Comm, "bind", "J");
50 jtask_field_Comm_taskBind = jxbt_get_jfield(env, jtask_class_Comm, "taskBind", "J");
51 jtask_field_Comm_receiving = jxbt_get_jfield(env, jtask_class_Comm, "receiving", "Z");
52 xbt_assert(jtask_field_Task_bind && jtask_field_Comm_bind && jtask_field_Comm_taskBind &&
53 jtask_field_Comm_receiving && jtask_method_Comm_constructor,
54 "Native initialization of msg/Task failed. Please report that bug");
57 JNIEXPORT void JNICALL Java_org_simgrid_msg_Task_create(JNIEnv * env, jobject jtask, jstring jname,
58 jdouble jflopsAmount, jdouble jbytesAmount)
60 const char *name = nullptr; /* the name of the task */
63 name = env->GetStringUTFChars(jname, 0);
64 msg_task_t task = MSG_task_create(name, static_cast<double>(jflopsAmount), static_cast<double>(jbytesAmount), jtask);
66 env->ReleaseStringUTFChars(jname, name);
68 /* bind & store the task */
69 jtask_bind(jtask, task, env);
72 JNIEXPORT void JNICALL Java_org_simgrid_msg_Task_parallelCreate(JNIEnv * env, jobject jtask, jstring jname,
73 jobjectArray jhosts, jdoubleArray jcomputeDurations_arg,
74 jdoubleArray jmessageSizes_arg)
76 int host_count = static_cast<int>(env->GetArrayLength(jhosts));
78 jdouble* jcomputeDurations = env->GetDoubleArrayElements(jcomputeDurations_arg, 0);
79 msg_host_t* hosts = xbt_new0(msg_host_t, host_count);
80 double* computeDurations = xbt_new0(double, host_count);
81 for (int index = 0; index < host_count; index++) {
82 jobject jhost = env->GetObjectArrayElement(jhosts, index);
83 hosts[index] = jhost_get_native(env, jhost);
84 computeDurations[index] = jcomputeDurations[index];
86 env->ReleaseDoubleArrayElements(jcomputeDurations_arg, jcomputeDurations, 0);
88 jdouble* jmessageSizes = env->GetDoubleArrayElements(jmessageSizes_arg, 0);
89 double* messageSizes = xbt_new0(double, host_count* host_count);
90 for (int index = 0; index < host_count * host_count; index++) {
91 messageSizes[index] = jmessageSizes[index];
93 env->ReleaseDoubleArrayElements(jmessageSizes_arg, jmessageSizes, 0);
95 /* get the C string from the java string */
96 const char* name = env->GetStringUTFChars(jname, 0);
97 msg_task_t task = MSG_parallel_task_create(name, host_count, hosts, computeDurations, messageSizes, jtask);
98 env->ReleaseStringUTFChars(jname, name);
100 /* associate the java task object and the native task */
101 jtask_bind(jtask, task, env);
104 JNIEXPORT void JNICALL Java_org_simgrid_msg_Task_cancel(JNIEnv * env, jobject jtask)
106 msg_task_t ptask = jtask_to_native(jtask, env);
109 jxbt_throw_notbound(env, "task", jtask);
113 msg_error_t rv = MSG_task_cancel(ptask);
115 jxbt_check_res("MSG_task_cancel()", rv, MSG_OK, bprintf("unexpected error , please report this bug"));
118 JNIEXPORT void JNICALL Java_org_simgrid_msg_Task_execute(JNIEnv * env, jobject jtask)
120 msg_task_t task = jtask_to_native(jtask, env);
123 jxbt_throw_notbound(env, "task", jtask);
127 rv = MSG_task_execute(task);
128 if (env->ExceptionOccurred())
131 jmsg_throw_status(env, rv);
135 JNIEXPORT void JNICALL Java_org_simgrid_msg_Task_setBound(JNIEnv * env, jobject jtask, jdouble bound)
137 msg_task_t task = jtask_to_native(jtask, env);
140 jxbt_throw_notbound(env, "task", jtask);
143 MSG_task_set_bound(task, bound);
146 JNIEXPORT jstring JNICALL Java_org_simgrid_msg_Task_getName(JNIEnv * env, jobject jtask) {
147 msg_task_t task = jtask_to_native(jtask, env);
150 jxbt_throw_notbound(env, "task", jtask);
154 return env->NewStringUTF(MSG_task_get_name(task));
157 JNIEXPORT jobject JNICALL Java_org_simgrid_msg_Task_getSender(JNIEnv * env, jobject jtask) {
158 msg_process_t process;
160 msg_task_t task = jtask_to_native(jtask, env);
163 jxbt_throw_notbound(env, "task", jtask);
167 process = MSG_task_get_sender(task);
168 if (process == nullptr) {
171 return (jobject)jprocess_from_native(process);
174 JNIEXPORT jobject JNICALL Java_org_simgrid_msg_Task_getSource(JNIEnv * env, jobject jtask)
177 msg_task_t task = jtask_to_native(jtask, env);
180 jxbt_throw_notbound(env, "task", jtask);
184 host = MSG_task_get_source(task);
185 if (host == nullptr) {
188 if (!host->extension(JAVA_HOST_LEVEL)) {
189 jxbt_throw_jni(env, "MSG_task_get_source() failed");
193 return (jobject) host->extension(JAVA_HOST_LEVEL);
196 JNIEXPORT jdouble JNICALL Java_org_simgrid_msg_Task_getFlopsAmount(JNIEnv * env, jobject jtask)
198 msg_task_t ptask = jtask_to_native(jtask, env);
201 jxbt_throw_notbound(env, "task", jtask);
204 return (jdouble) MSG_task_get_flops_amount(ptask);
207 JNIEXPORT void JNICALL Java_org_simgrid_msg_Task_setName(JNIEnv *env, jobject jtask, jobject jname) {
208 msg_task_t task = jtask_to_native(jtask, env);
211 jxbt_throw_notbound(env, "task", jtask);
214 const char *name = env->GetStringUTFChars((jstring) jname, 0);
216 env->SetObjectField(jtask, jtask_field_Task_name, jname);
217 MSG_task_set_name(task, name);
219 env->ReleaseStringUTFChars((jstring) jname, name);
222 JNIEXPORT void JNICALL Java_org_simgrid_msg_Task_setPriority(JNIEnv * env, jobject jtask, jdouble priority)
224 msg_task_t task = jtask_to_native(jtask, env);
227 jxbt_throw_notbound(env, "task", jtask);
230 MSG_task_set_priority(task, static_cast<double>(priority));
233 JNIEXPORT void JNICALL Java_org_simgrid_msg_Task_setFlopsAmount (JNIEnv *env, jobject jtask, jdouble computationAmount)
235 msg_task_t task = jtask_to_native(jtask, env);
238 jxbt_throw_notbound(env, "task", jtask);
241 MSG_task_set_flops_amount(task, static_cast<double>(computationAmount));
244 JNIEXPORT void JNICALL Java_org_simgrid_msg_Task_setBytesAmount (JNIEnv *env, jobject jtask, jdouble dataSize)
246 msg_task_t task = jtask_to_native(jtask, env);
249 jxbt_throw_notbound(env, "task", jtask);
252 env->SetDoubleField(jtask, jtask_field_Task_messageSize, dataSize);
253 MSG_task_set_bytes_amount(task, static_cast<double>(dataSize));
256 JNIEXPORT void JNICALL Java_org_simgrid_msg_Task_sendBounded(JNIEnv * env,jobject jtask, jstring jalias,
257 jdouble jtimeout,jdouble maxrate)
259 msg_task_t task = jtask_to_native(jtask, env);
261 jxbt_throw_notbound(env, "task", jtask);
265 /* Add a global ref into the Ctask so that the receiver can use it */
266 MSG_task_set_data(task, (void *) env->NewGlobalRef(jtask));
268 const char* alias = env->GetStringUTFChars(jalias, 0);
270 MSG_task_send_with_timeout_bounded(task, alias, static_cast<double>(jtimeout), static_cast<double>(maxrate));
271 env->ReleaseStringUTFChars(jalias, alias);
274 jmsg_throw_status(env, res);
277 JNIEXPORT jobject JNICALL Java_org_simgrid_msg_Task_receive(JNIEnv* env, jclass cls, jstring jalias, jdouble jtimeout)
279 msg_task_t task = nullptr;
281 const char *alias = env->GetStringUTFChars(jalias, 0);
282 msg_error_t rv = MSG_task_receive_ext(&task, alias, (double)jtimeout, /*host*/ nullptr);
283 env->ReleaseStringUTFChars(jalias, alias);
284 if (env->ExceptionOccurred())
287 jmsg_throw_status(env,rv);
290 jobject jtask_global = (jobject) MSG_task_get_data(task);
292 /* Convert the global ref into a local ref so that the JVM can free the stuff */
293 jobject jtask_local = env->NewLocalRef(jtask_global);
294 env->DeleteGlobalRef(jtask_global);
295 MSG_task_set_data(task, nullptr);
297 return (jobject) jtask_local;
300 JNIEXPORT jobject JNICALL Java_org_simgrid_msg_Task_irecv(JNIEnv * env, jclass cls, jstring jmailbox) {
301 jclass comm_class = env->FindClass("org/simgrid/msg/Comm");
305 //pointer to store the task object pointer.
306 msg_task_t *task = xbt_new(msg_task_t,1);
308 /* There should be a cache here */
310 jobject jcomm = env->NewObject(comm_class, jtask_method_Comm_constructor);
312 jxbt_throw_jni(env, "Can't create a Comm object.");
316 const char* mailbox = env->GetStringUTFChars(jmailbox, 0);
317 msg_comm_t comm = MSG_task_irecv(task, mailbox);
318 env->ReleaseStringUTFChars(jmailbox, mailbox);
320 env->SetLongField(jcomm, jtask_field_Comm_bind, (jlong) (uintptr_t)(comm));
321 env->SetLongField(jcomm, jtask_field_Comm_taskBind, (jlong) (uintptr_t)(task));
322 env->SetBooleanField(jcomm, jtask_field_Comm_receiving, JNI_TRUE);
327 JNIEXPORT jobject JNICALL Java_org_simgrid_msg_Task_receiveBounded(JNIEnv* env, jclass cls, jstring jalias,
328 jdouble jtimeout, jdouble rate)
330 msg_task_t task = nullptr;
332 const char *alias = env->GetStringUTFChars(jalias, 0);
333 msg_error_t res = MSG_task_receive_ext_bounded(&task, alias, static_cast<double>(jtimeout), /*host*/ nullptr,
334 static_cast<double>(rate));
335 if (env->ExceptionOccurred())
338 jmsg_throw_status(env, res);
341 jobject jtask_global = (jobject)MSG_task_get_data(task);
343 /* Convert the global ref into a local ref so that the JVM can free the stuff */
344 jobject jtask_local = env->NewLocalRef(jtask_global);
345 env->DeleteGlobalRef(jtask_global);
346 MSG_task_set_data(task, nullptr);
348 env->ReleaseStringUTFChars(jalias, alias);
350 return (jobject) jtask_local;
353 JNIEXPORT jobject JNICALL Java_org_simgrid_msg_Task_irecvBounded(JNIEnv * env, jclass cls, jstring jmailbox,
356 jclass comm_class = env->FindClass("org/simgrid/msg/Comm");
360 // pointer to store the task object pointer.
361 msg_task_t* task = xbt_new0(msg_task_t, 1);
363 jobject jcomm = env->NewObject(comm_class, jtask_method_Comm_constructor);
365 jxbt_throw_jni(env, "Can't create a Comm object.");
369 const char* mailbox = env->GetStringUTFChars(jmailbox, 0);
370 msg_comm_t comm = MSG_task_irecv_bounded(task, mailbox, static_cast<double>(rate));
371 env->ReleaseStringUTFChars(jmailbox, mailbox);
373 env->SetLongField(jcomm, jtask_field_Comm_bind, (jlong) (uintptr_t)(comm));
374 env->SetLongField(jcomm, jtask_field_Comm_taskBind, (jlong) (uintptr_t)(task));
375 env->SetBooleanField(jcomm, jtask_field_Comm_receiving, JNI_TRUE);
380 JNIEXPORT jobject JNICALL Java_org_simgrid_msg_Task_isend(JNIEnv *env, jobject jtask, jstring jmailbox)
384 jclass comm_class = env->FindClass("org/simgrid/msg/Comm");
386 if (!comm_class) return nullptr;
388 jobject jcomm = env->NewObject(comm_class, jtask_method_Comm_constructor);
389 const char* mailbox = env->GetStringUTFChars(jmailbox, 0);
391 msg_task_t task = jtask_to_native(jtask, env);
394 env->ReleaseStringUTFChars(jmailbox, mailbox);
395 env->DeleteLocalRef(jcomm);
396 jxbt_throw_notbound(env, "task", jtask);
400 MSG_task_set_data(task, (void *) env->NewGlobalRef(jtask));
401 comm = MSG_task_isend(task,mailbox);
403 env->SetLongField(jcomm, jtask_field_Comm_bind, (jlong) (uintptr_t)(comm));
404 env->SetLongField(jcomm, jtask_field_Comm_taskBind, (jlong) (uintptr_t)(nullptr));
405 env->SetBooleanField(jcomm, jtask_field_Comm_receiving, JNI_FALSE);
407 env->ReleaseStringUTFChars(jmailbox, mailbox);
412 JNIEXPORT jobject JNICALL Java_org_simgrid_msg_Task_isendBounded(JNIEnv *env, jobject jtask, jstring jmailbox,
420 jclass comm_class = env->FindClass("org/simgrid/msg/Comm");
424 jcomm = env->NewObject(comm_class, jtask_method_Comm_constructor);
425 mailbox = env->GetStringUTFChars(jmailbox, 0);
427 task = jtask_to_native(jtask, env);
430 env->ReleaseStringUTFChars(jmailbox, mailbox);
431 env->DeleteLocalRef(jcomm);
432 jxbt_throw_notbound(env, "task", jtask);
436 MSG_task_set_data(task, (void *) env->NewGlobalRef(jtask));
437 comm = MSG_task_isend_bounded(task,mailbox,maxrate);
439 env->SetLongField(jcomm, jtask_field_Comm_bind, (jlong) (uintptr_t)(comm));
440 env->SetLongField(jcomm, jtask_field_Comm_taskBind, (jlong) (uintptr_t)(nullptr));
441 env->SetBooleanField(jcomm, jtask_field_Comm_receiving, JNI_FALSE);
443 env->ReleaseStringUTFChars(jmailbox, mailbox);
448 JNIEXPORT void JNICALL Java_org_simgrid_msg_Task_nativeFinalize(JNIEnv * env, jobject jtask)
450 msg_task_t task = jtask_to_native(jtask, env);
453 jxbt_throw_notbound(env, "task", jtask);
457 MSG_task_destroy(task);
460 static void msg_task_cancel_on_failed_dsend(void*t) {
461 msg_task_t task = (msg_task_t) t;
462 JNIEnv *env =get_current_thread_env();
463 jobject jtask_global = (jobject) MSG_task_get_data(task);
465 /* Destroy the global ref so that the JVM can free the stuff */
466 env->DeleteGlobalRef(jtask_global);
467 MSG_task_set_data(task, nullptr);
468 MSG_task_destroy(task);
471 JNIEXPORT void JNICALL Java_org_simgrid_msg_Task_dsend(JNIEnv * env, jobject jtask, jstring jalias)
473 const char *alias = env->GetStringUTFChars(jalias, 0);
475 msg_task_t task = jtask_to_native(jtask, env);
478 env->ReleaseStringUTFChars(jalias, alias);
479 jxbt_throw_notbound(env, "task", jtask);
483 /* Pass a global ref to the Jtask into the Ctask so that the receiver can use it */
484 MSG_task_set_data(task, (void *) env->NewGlobalRef(jtask));
485 MSG_task_dsend(task, alias, msg_task_cancel_on_failed_dsend);
487 env->ReleaseStringUTFChars(jalias, alias);
490 JNIEXPORT void JNICALL Java_org_simgrid_msg_Task_dsendBounded(JNIEnv * env, jobject jtask, jstring jalias,
493 const char *alias = env->GetStringUTFChars(jalias, 0);
495 msg_task_t task = jtask_to_native(jtask, env);
498 env->ReleaseStringUTFChars(jalias, alias);
499 jxbt_throw_notbound(env, "task", jtask);
503 /* Pass a global ref to the Jtask into the Ctask so that the receiver can use it */
504 MSG_task_set_data(task, (void *) env->NewGlobalRef(jtask));
505 MSG_task_dsend_bounded(task, alias, msg_task_cancel_on_failed_dsend,static_cast<double>(maxrate));
507 env->ReleaseStringUTFChars(jalias, alias);
510 JNIEXPORT jboolean JNICALL Java_org_simgrid_msg_Task_listen(JNIEnv * env, jclass cls, jstring jalias)
512 const char *alias = env->GetStringUTFChars(jalias, 0);
513 int rv = MSG_task_listen(alias);
514 env->ReleaseStringUTFChars(jalias, alias);
516 return (jboolean) rv;
519 JNIEXPORT jint JNICALL Java_org_simgrid_msg_Task_listenFrom(JNIEnv * env, jclass cls, jstring jalias)
521 const char *alias = env->GetStringUTFChars(jalias, 0);
522 int rv = MSG_task_listen_from(alias);
523 env->ReleaseStringUTFChars(jalias, alias);