1 /* Functions related to the java task instances. */
3 /* Copyright (c) 2007-2019. 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"
9 #include "src/kernel/context/Context.hpp"
12 #include "jmsg_host.h"
13 #include "jmsg_process.h"
14 #include "jmsg_task.h"
15 #include "jxbt_utilities.hpp"
17 XBT_LOG_EXTERNAL_DEFAULT_CATEGORY(java);
19 static jmethodID jtask_method_Comm_constructor;
21 static jfieldID jtask_field_Task_bind;
22 static jfieldID jtask_field_Task_name;
23 static jfieldID jtask_field_Task_messageSize;
24 static jfieldID jtask_field_Comm_bind;
25 static jfieldID jtask_field_Comm_taskBind;
26 static jfieldID jtask_field_Comm_receiving;
28 void jtask_bind(jobject jtask, msg_task_t task, JNIEnv * env)
30 env->SetLongField(jtask, jtask_field_Task_bind, (intptr_t)task);
33 msg_task_t jtask_to_native(jobject jtask, JNIEnv* env)
35 return (msg_task_t)(intptr_t)env->GetLongField(jtask, jtask_field_Task_bind);
38 JNIEXPORT void JNICALL Java_org_simgrid_msg_Task_nativeInit(JNIEnv *env, jclass cls) {
39 jclass jtask_class_Comm = env->FindClass("org/simgrid/msg/Comm");
40 jclass jtask_class_Task = env->FindClass("org/simgrid/msg/Task");
41 xbt_assert(jtask_class_Comm && jtask_class_Task,
42 "Native initialization of msg/Comm or msg/Task failed. Please report that bug");
44 jtask_method_Comm_constructor = env->GetMethodID(jtask_class_Comm, "<init>", "()V");
45 jtask_field_Task_bind = jxbt_get_jfield(env, jtask_class_Task, "bind", "J");
46 jtask_field_Task_name = jxbt_get_jfield(env, jtask_class_Task, "name", "Ljava/lang/String;");
47 jtask_field_Task_messageSize = jxbt_get_jfield(env, jtask_class_Task, "messageSize", "D");
48 jtask_field_Comm_bind = jxbt_get_jfield(env, jtask_class_Comm, "bind", "J");
49 jtask_field_Comm_taskBind = jxbt_get_jfield(env, jtask_class_Comm, "taskBind", "J");
50 jtask_field_Comm_receiving = jxbt_get_jfield(env, jtask_class_Comm, "receiving", "Z");
51 xbt_assert(jtask_field_Task_bind && jtask_field_Comm_bind && jtask_field_Comm_taskBind &&
52 jtask_field_Comm_receiving && jtask_method_Comm_constructor,
53 "Native initialization of msg/Task failed. Please report that bug");
56 JNIEXPORT void JNICALL Java_org_simgrid_msg_Task_create(JNIEnv * env, jobject jtask, jstring jname,
57 jdouble jflopsAmount, jdouble jbytesAmount)
59 const char *name = nullptr; /* the name of the task */
62 name = env->GetStringUTFChars(jname, 0);
63 msg_task_t task = MSG_task_create(name, static_cast<double>(jflopsAmount), static_cast<double>(jbytesAmount), jtask);
65 env->ReleaseStringUTFChars(jname, name);
67 /* bind & store the task */
68 jtask_bind(jtask, task, env);
71 JNIEXPORT void JNICALL Java_org_simgrid_msg_Task_parallelCreate(JNIEnv * env, jobject jtask, jstring jname,
72 jobjectArray jhosts, jdoubleArray jcomputeDurations_arg,
73 jdoubleArray jmessageSizes_arg)
75 int host_count = static_cast<int>(env->GetArrayLength(jhosts));
77 jdouble* jcomputeDurations = env->GetDoubleArrayElements(jcomputeDurations_arg, 0);
78 msg_host_t* hosts = new msg_host_t[host_count];
79 double* computeDurations = new double[host_count];
80 for (int index = 0; index < host_count; index++) {
81 jobject jhost = env->GetObjectArrayElement(jhosts, index);
82 hosts[index] = jhost_get_native(env, jhost);
83 computeDurations[index] = jcomputeDurations[index];
85 env->ReleaseDoubleArrayElements(jcomputeDurations_arg, jcomputeDurations, 0);
87 jdouble* jmessageSizes = env->GetDoubleArrayElements(jmessageSizes_arg, 0);
88 double* messageSizes = new double[host_count * host_count];
89 for (int index = 0; index < host_count * host_count; index++) {
90 messageSizes[index] = jmessageSizes[index];
92 env->ReleaseDoubleArrayElements(jmessageSizes_arg, jmessageSizes, 0);
94 /* get the C string from the java string */
95 const char* name = env->GetStringUTFChars(jname, 0);
96 msg_task_t task = MSG_parallel_task_create(name, host_count, hosts, computeDurations, messageSizes, jtask);
97 env->ReleaseStringUTFChars(jname, name);
99 /* associate the java task object and the native task */
100 jtask_bind(jtask, task, env);
103 delete[] computeDurations;
104 delete[] messageSizes;
107 JNIEXPORT void JNICALL Java_org_simgrid_msg_Task_cancel(JNIEnv * env, jobject jtask)
109 msg_task_t ptask = jtask_to_native(jtask, env);
112 jxbt_throw_notbound(env, "task", jtask);
116 msg_error_t rv = MSG_task_cancel(ptask);
118 jxbt_check_res("MSG_task_cancel()", rv, MSG_OK, "unexpected error , please report this bug");
121 JNIEXPORT void JNICALL Java_org_simgrid_msg_Task_execute(JNIEnv * env, jobject jtask)
123 msg_task_t task = jtask_to_native(jtask, env);
126 jxbt_throw_notbound(env, "task", jtask);
131 rv = MSG_task_execute(task);
132 } catch (simgrid::kernel::context::Context::StopRequest& e) {
133 jxbt_throw_by_name(env, "org/simgrid/msg/ProcessKilledError", "Process killed");
136 if (env->ExceptionOccurred())
139 jmsg_throw_status(env, rv);
143 JNIEXPORT void JNICALL Java_org_simgrid_msg_Task_setBound(JNIEnv * env, jobject jtask, jdouble bound)
145 msg_task_t task = jtask_to_native(jtask, env);
148 jxbt_throw_notbound(env, "task", jtask);
151 MSG_task_set_bound(task, bound);
154 JNIEXPORT jstring JNICALL Java_org_simgrid_msg_Task_getName(JNIEnv * env, jobject jtask) {
155 msg_task_t task = jtask_to_native(jtask, env);
158 jxbt_throw_notbound(env, "task", jtask);
162 return env->NewStringUTF(MSG_task_get_name(task));
165 JNIEXPORT jobject JNICALL Java_org_simgrid_msg_Task_getSender(JNIEnv * env, jobject jtask) {
166 msg_process_t process;
168 msg_task_t task = jtask_to_native(jtask, env);
171 jxbt_throw_notbound(env, "task", jtask);
175 process = MSG_task_get_sender(task);
176 if (process == nullptr) {
179 return (jobject)jprocess_from_native(process);
182 JNIEXPORT jobject JNICALL Java_org_simgrid_msg_Task_getSource(JNIEnv * env, jobject jtask)
185 msg_task_t task = jtask_to_native(jtask, env);
188 jxbt_throw_notbound(env, "task", jtask);
192 host = MSG_task_get_source(task);
193 if (host == nullptr) {
196 if (not host->extension(JAVA_HOST_LEVEL)) {
197 jxbt_throw_jni(env, "MSG_task_get_source() failed");
201 return (jobject) host->extension(JAVA_HOST_LEVEL);
204 JNIEXPORT jdouble JNICALL Java_org_simgrid_msg_Task_getFlopsAmount(JNIEnv * env, jobject jtask)
206 msg_task_t ptask = jtask_to_native(jtask, env);
209 jxbt_throw_notbound(env, "task", jtask);
212 return (jdouble)MSG_task_get_flops_amount(ptask);
215 JNIEXPORT void JNICALL Java_org_simgrid_msg_Task_setName(JNIEnv *env, jobject jtask, jobject jname) {
216 msg_task_t task = jtask_to_native(jtask, env);
219 jxbt_throw_notbound(env, "task", jtask);
222 const char *name = env->GetStringUTFChars((jstring) jname, 0);
224 env->SetObjectField(jtask, jtask_field_Task_name, jname);
225 MSG_task_set_name(task, name);
227 env->ReleaseStringUTFChars((jstring) jname, name);
230 JNIEXPORT void JNICALL Java_org_simgrid_msg_Task_setPriority(JNIEnv * env, jobject jtask, jdouble priority)
232 msg_task_t task = jtask_to_native(jtask, env);
235 jxbt_throw_notbound(env, "task", jtask);
238 MSG_task_set_priority(task, static_cast<double>(priority));
241 JNIEXPORT void JNICALL Java_org_simgrid_msg_Task_setFlopsAmount (JNIEnv *env, jobject jtask, jdouble computationAmount)
243 msg_task_t task = jtask_to_native(jtask, env);
246 jxbt_throw_notbound(env, "task", jtask);
249 MSG_task_set_flops_amount(task, static_cast<double>(computationAmount));
252 JNIEXPORT void JNICALL Java_org_simgrid_msg_Task_setBytesAmount (JNIEnv *env, jobject jtask, jdouble dataSize)
254 msg_task_t task = jtask_to_native(jtask, env);
257 jxbt_throw_notbound(env, "task", jtask);
260 env->SetDoubleField(jtask, jtask_field_Task_messageSize, dataSize);
261 MSG_task_set_bytes_amount(task, static_cast<double>(dataSize));
264 JNIEXPORT void JNICALL Java_org_simgrid_msg_Task_sendBounded(JNIEnv * env,jobject jtask, jstring jalias,
265 jdouble jtimeout,jdouble maxrate)
267 msg_task_t task = jtask_to_native(jtask, env);
269 jxbt_throw_notbound(env, "task", jtask);
273 /* Add a global ref into the Ctask so that the receiver can use it */
274 MSG_task_set_data(task, (void *) env->NewGlobalRef(jtask));
276 const char* alias = env->GetStringUTFChars(jalias, 0);
278 MSG_task_send_with_timeout_bounded(task, alias, static_cast<double>(jtimeout), static_cast<double>(maxrate));
279 env->ReleaseStringUTFChars(jalias, alias);
282 jmsg_throw_status(env, res);
285 JNIEXPORT jobject JNICALL Java_org_simgrid_msg_Task_receive(JNIEnv* env, jclass cls, jstring jalias, jdouble jtimeout)
287 msg_task_t task = nullptr;
289 const char *alias = env->GetStringUTFChars(jalias, 0);
292 rv = MSG_task_receive_ext(&task, alias, (double)jtimeout, /*host*/ nullptr);
293 } catch (simgrid::kernel::context::Context::StopRequest& e) {
294 jxbt_throw_by_name(env, "org/simgrid/msg/ProcessKilledError", "Process killed");
296 env->ReleaseStringUTFChars(jalias, alias);
297 if (env->ExceptionOccurred())
300 jmsg_throw_status(env, rv);
303 jobject jtask_global = (jobject) MSG_task_get_data(task);
305 /* Convert the global ref into a local ref so that the JVM can free the stuff */
306 jobject jtask_local = env->NewLocalRef(jtask_global);
307 env->DeleteGlobalRef(jtask_global);
308 MSG_task_set_data(task, nullptr);
310 return (jobject) jtask_local;
313 JNIEXPORT jobject JNICALL Java_org_simgrid_msg_Task_irecv(JNIEnv * env, jclass cls, jstring jmailbox) {
314 jclass comm_class = env->FindClass("org/simgrid/msg/Comm");
318 //pointer to store the task object pointer.
319 msg_task_t* task = new msg_task_t(nullptr);
320 /* There should be a cache here */
322 jobject jcomm = env->NewObject(comm_class, jtask_method_Comm_constructor);
324 jxbt_throw_jni(env, "Can't create a Comm object.");
328 const char* mailbox = env->GetStringUTFChars(jmailbox, 0);
329 msg_comm_t comm = MSG_task_irecv(task, mailbox);
330 env->ReleaseStringUTFChars(jmailbox, mailbox);
332 env->SetLongField(jcomm, jtask_field_Comm_bind, (jlong) (uintptr_t)(comm));
333 env->SetLongField(jcomm, jtask_field_Comm_taskBind, (jlong) (uintptr_t)(task));
334 env->SetBooleanField(jcomm, jtask_field_Comm_receiving, JNI_TRUE);
339 JNIEXPORT jobject JNICALL Java_org_simgrid_msg_Task_receiveBounded(JNIEnv* env, jclass cls, jstring jalias,
340 jdouble jtimeout, jdouble rate)
342 msg_task_t task = nullptr;
344 const char *alias = env->GetStringUTFChars(jalias, 0);
345 msg_error_t res = MSG_task_receive_ext_bounded(&task, alias, static_cast<double>(jtimeout), /*host*/ nullptr,
346 static_cast<double>(rate));
347 if (env->ExceptionOccurred())
350 jmsg_throw_status(env, res);
353 jobject jtask_global = (jobject)MSG_task_get_data(task);
355 /* Convert the global ref into a local ref so that the JVM can free the stuff */
356 jobject jtask_local = env->NewLocalRef(jtask_global);
357 env->DeleteGlobalRef(jtask_global);
358 MSG_task_set_data(task, nullptr);
360 env->ReleaseStringUTFChars(jalias, alias);
362 return (jobject) jtask_local;
365 JNIEXPORT jobject JNICALL Java_org_simgrid_msg_Task_irecvBounded(JNIEnv * env, jclass cls, jstring jmailbox,
368 jclass comm_class = env->FindClass("org/simgrid/msg/Comm");
372 // pointer to store the task object pointer.
373 msg_task_t* task = new msg_task_t(nullptr);
375 jobject jcomm = env->NewObject(comm_class, jtask_method_Comm_constructor);
377 jxbt_throw_jni(env, "Can't create a Comm object.");
381 const char* mailbox = env->GetStringUTFChars(jmailbox, 0);
382 msg_comm_t comm = MSG_task_irecv_bounded(task, mailbox, static_cast<double>(rate));
383 env->ReleaseStringUTFChars(jmailbox, mailbox);
385 env->SetLongField(jcomm, jtask_field_Comm_bind, (jlong) (uintptr_t)(comm));
386 env->SetLongField(jcomm, jtask_field_Comm_taskBind, (jlong) (uintptr_t)(task));
387 env->SetBooleanField(jcomm, jtask_field_Comm_receiving, JNI_TRUE);
392 JNIEXPORT jobject JNICALL Java_org_simgrid_msg_Task_isend(JNIEnv *env, jobject jtask, jstring jmailbox)
396 jclass comm_class = env->FindClass("org/simgrid/msg/Comm");
401 jobject jcomm = env->NewObject(comm_class, jtask_method_Comm_constructor);
402 const char* mailbox = env->GetStringUTFChars(jmailbox, 0);
404 msg_task_t task = jtask_to_native(jtask, env);
407 env->ReleaseStringUTFChars(jmailbox, mailbox);
408 env->DeleteLocalRef(jcomm);
409 jxbt_throw_notbound(env, "task", jtask);
413 MSG_task_set_data(task, (void *) env->NewGlobalRef(jtask));
414 comm = MSG_task_isend(task,mailbox);
416 env->SetLongField(jcomm, jtask_field_Comm_bind, (jlong) (uintptr_t)(comm));
417 env->SetLongField(jcomm, jtask_field_Comm_taskBind, (jlong) (uintptr_t)(nullptr));
418 env->SetBooleanField(jcomm, jtask_field_Comm_receiving, JNI_FALSE);
420 env->ReleaseStringUTFChars(jmailbox, mailbox);
425 JNIEXPORT jobject JNICALL Java_org_simgrid_msg_Task_isendBounded(JNIEnv *env, jobject jtask, jstring jmailbox,
433 jclass comm_class = env->FindClass("org/simgrid/msg/Comm");
437 jcomm = env->NewObject(comm_class, jtask_method_Comm_constructor);
438 mailbox = env->GetStringUTFChars(jmailbox, 0);
440 task = jtask_to_native(jtask, env);
443 env->ReleaseStringUTFChars(jmailbox, mailbox);
444 env->DeleteLocalRef(jcomm);
445 jxbt_throw_notbound(env, "task", jtask);
449 MSG_task_set_data(task, (void *) env->NewGlobalRef(jtask));
450 comm = MSG_task_isend_bounded(task,mailbox,maxrate);
452 env->SetLongField(jcomm, jtask_field_Comm_bind, (jlong) (uintptr_t)(comm));
453 env->SetLongField(jcomm, jtask_field_Comm_taskBind, (jlong) (uintptr_t)(nullptr));
454 env->SetBooleanField(jcomm, jtask_field_Comm_receiving, JNI_FALSE);
456 env->ReleaseStringUTFChars(jmailbox, mailbox);
461 JNIEXPORT void JNICALL Java_org_simgrid_msg_Task_nativeFinalize(JNIEnv * env, jobject jtask)
463 msg_task_t task = jtask_to_native(jtask, env);
466 jxbt_throw_notbound(env, "task", jtask);
470 MSG_task_destroy(task);
473 static void msg_task_cancel_on_failed_dsend(void*t) {
474 msg_task_t task = (msg_task_t) t;
475 JNIEnv *env =get_current_thread_env();
476 jobject jtask_global = (jobject) MSG_task_get_data(task);
478 /* Destroy the global ref so that the JVM can free the stuff */
479 env->DeleteGlobalRef(jtask_global);
480 MSG_task_set_data(task, nullptr);
481 MSG_task_destroy(task);
484 JNIEXPORT void JNICALL Java_org_simgrid_msg_Task_dsend(JNIEnv * env, jobject jtask, jstring jalias)
486 const char *alias = env->GetStringUTFChars(jalias, 0);
488 msg_task_t task = jtask_to_native(jtask, env);
491 env->ReleaseStringUTFChars(jalias, alias);
492 jxbt_throw_notbound(env, "task", jtask);
496 /* Pass a global ref to the Jtask into the Ctask so that the receiver can use it */
497 MSG_task_set_data(task, (void *) env->NewGlobalRef(jtask));
498 MSG_task_dsend(task, alias, msg_task_cancel_on_failed_dsend);
500 env->ReleaseStringUTFChars(jalias, alias);
503 JNIEXPORT void JNICALL Java_org_simgrid_msg_Task_dsendBounded(JNIEnv * env, jobject jtask, jstring jalias,
506 const char *alias = env->GetStringUTFChars(jalias, 0);
508 msg_task_t task = jtask_to_native(jtask, env);
511 env->ReleaseStringUTFChars(jalias, alias);
512 jxbt_throw_notbound(env, "task", jtask);
516 /* Pass a global ref to the Jtask into the Ctask so that the receiver can use it */
517 MSG_task_set_data(task, (void *) env->NewGlobalRef(jtask));
518 MSG_task_dsend_bounded(task, alias, msg_task_cancel_on_failed_dsend,static_cast<double>(maxrate));
520 env->ReleaseStringUTFChars(jalias, alias);
523 JNIEXPORT jboolean JNICALL Java_org_simgrid_msg_Task_listen(JNIEnv * env, jclass cls, jstring jalias)
525 const char *alias = env->GetStringUTFChars(jalias, 0);
526 int rv = MSG_task_listen(alias);
527 env->ReleaseStringUTFChars(jalias, alias);
529 return (jboolean) rv;
532 JNIEXPORT jint JNICALL Java_org_simgrid_msg_Task_listenFrom(JNIEnv * env, jclass cls, jstring jalias)
534 const char *alias = env->GetStringUTFChars(jalias, 0);
535 int rv = MSG_task_listen_from(alias);
536 env->ReleaseStringUTFChars(jalias, alias);