1 /* Functions related to the java task instances. */
3 /* Copyright (c) 2007-2018. 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_process.h"
13 #include "jmsg_task.h"
14 #include "jxbt_utilities.hpp"
16 XBT_LOG_EXTERNAL_DEFAULT_CATEGORY(java);
18 static jmethodID jtask_method_Comm_constructor;
20 static jfieldID jtask_field_Task_bind;
21 static jfieldID jtask_field_Task_name;
22 static jfieldID jtask_field_Task_messageSize;
23 static jfieldID jtask_field_Comm_bind;
24 static jfieldID jtask_field_Comm_taskBind;
25 static jfieldID jtask_field_Comm_receiving;
27 void jtask_bind(jobject jtask, msg_task_t task, JNIEnv * env)
29 env->SetLongField(jtask, jtask_field_Task_bind, (intptr_t)task);
32 msg_task_t jtask_to_native(jobject jtask, JNIEnv* env)
34 return (msg_task_t)(intptr_t)env->GetLongField(jtask, jtask_field_Task_bind);
37 JNIEXPORT void JNICALL Java_org_simgrid_msg_Task_nativeInit(JNIEnv *env, jclass cls) {
38 jclass jtask_class_Comm = env->FindClass("org/simgrid/msg/Comm");
39 jclass jtask_class_Task = env->FindClass("org/simgrid/msg/Task");
40 xbt_assert(jtask_class_Comm && jtask_class_Task,
41 "Native initialization of msg/Comm or msg/Task failed. Please report that bug");
43 jtask_method_Comm_constructor = env->GetMethodID(jtask_class_Comm, "<init>", "()V");
44 jtask_field_Task_bind = jxbt_get_jfield(env, jtask_class_Task, "bind", "J");
45 jtask_field_Task_name = jxbt_get_jfield(env, jtask_class_Task, "name", "Ljava/lang/String;");
46 jtask_field_Task_messageSize = jxbt_get_jfield(env, jtask_class_Task, "messageSize", "D");
47 jtask_field_Comm_bind = jxbt_get_jfield(env, jtask_class_Comm, "bind", "J");
48 jtask_field_Comm_taskBind = jxbt_get_jfield(env, jtask_class_Comm, "taskBind", "J");
49 jtask_field_Comm_receiving = jxbt_get_jfield(env, jtask_class_Comm, "receiving", "Z");
50 xbt_assert(jtask_field_Task_bind && jtask_field_Comm_bind && jtask_field_Comm_taskBind &&
51 jtask_field_Comm_receiving && jtask_method_Comm_constructor,
52 "Native initialization of msg/Task failed. Please report that bug");
55 JNIEXPORT void JNICALL Java_org_simgrid_msg_Task_create(JNIEnv * env, jobject jtask, jstring jname,
56 jdouble jflopsAmount, jdouble jbytesAmount)
58 const char *name = nullptr; /* the name of the task */
61 name = env->GetStringUTFChars(jname, 0);
62 msg_task_t task = MSG_task_create(name, static_cast<double>(jflopsAmount), static_cast<double>(jbytesAmount), jtask);
64 env->ReleaseStringUTFChars(jname, name);
66 /* bind & store the task */
67 jtask_bind(jtask, task, env);
70 JNIEXPORT void JNICALL Java_org_simgrid_msg_Task_parallelCreate(JNIEnv * env, jobject jtask, jstring jname,
71 jobjectArray jhosts, jdoubleArray jcomputeDurations_arg,
72 jdoubleArray jmessageSizes_arg)
74 int host_count = static_cast<int>(env->GetArrayLength(jhosts));
76 jdouble* jcomputeDurations = env->GetDoubleArrayElements(jcomputeDurations_arg, 0);
77 msg_host_t* hosts = new msg_host_t[host_count];
78 double* computeDurations = new double[host_count];
79 for (int index = 0; index < host_count; index++) {
80 jobject jhost = env->GetObjectArrayElement(jhosts, index);
81 hosts[index] = jhost_get_native(env, jhost);
82 computeDurations[index] = jcomputeDurations[index];
84 env->ReleaseDoubleArrayElements(jcomputeDurations_arg, jcomputeDurations, 0);
86 jdouble* jmessageSizes = env->GetDoubleArrayElements(jmessageSizes_arg, 0);
87 double* messageSizes = new double[host_count * host_count];
88 for (int index = 0; index < host_count * host_count; index++) {
89 messageSizes[index] = jmessageSizes[index];
91 env->ReleaseDoubleArrayElements(jmessageSizes_arg, jmessageSizes, 0);
93 /* get the C string from the java string */
94 const char* name = env->GetStringUTFChars(jname, 0);
95 msg_task_t task = MSG_parallel_task_create(name, host_count, hosts, computeDurations, messageSizes, jtask);
96 env->ReleaseStringUTFChars(jname, name);
98 /* associate the java task object and the native task */
99 jtask_bind(jtask, task, env);
102 delete[] computeDurations;
103 delete[] messageSizes;
106 JNIEXPORT void JNICALL Java_org_simgrid_msg_Task_cancel(JNIEnv * env, jobject jtask)
108 msg_task_t ptask = jtask_to_native(jtask, env);
111 jxbt_throw_notbound(env, "task", jtask);
115 msg_error_t rv = MSG_task_cancel(ptask);
117 jxbt_check_res("MSG_task_cancel()", rv, MSG_OK, "unexpected error , please report this bug");
120 JNIEXPORT void JNICALL Java_org_simgrid_msg_Task_execute(JNIEnv * env, jobject jtask)
122 msg_task_t task = jtask_to_native(jtask, env);
125 jxbt_throw_notbound(env, "task", jtask);
129 rv = MSG_task_execute(task);
130 if (env->ExceptionOccurred())
133 jmsg_throw_status(env, rv);
137 JNIEXPORT void JNICALL Java_org_simgrid_msg_Task_setBound(JNIEnv * env, jobject jtask, jdouble bound)
139 msg_task_t task = jtask_to_native(jtask, env);
142 jxbt_throw_notbound(env, "task", jtask);
145 MSG_task_set_bound(task, bound);
148 JNIEXPORT jstring JNICALL Java_org_simgrid_msg_Task_getName(JNIEnv * env, jobject jtask) {
149 msg_task_t task = jtask_to_native(jtask, env);
152 jxbt_throw_notbound(env, "task", jtask);
156 return env->NewStringUTF(MSG_task_get_name(task));
159 JNIEXPORT jobject JNICALL Java_org_simgrid_msg_Task_getSender(JNIEnv * env, jobject jtask) {
160 msg_process_t process;
162 msg_task_t task = jtask_to_native(jtask, env);
165 jxbt_throw_notbound(env, "task", jtask);
169 process = MSG_task_get_sender(task);
170 if (process == nullptr) {
173 return (jobject)jprocess_from_native(process);
176 JNIEXPORT jobject JNICALL Java_org_simgrid_msg_Task_getSource(JNIEnv * env, jobject jtask)
179 msg_task_t task = jtask_to_native(jtask, env);
182 jxbt_throw_notbound(env, "task", jtask);
186 host = MSG_task_get_source(task);
187 if (host == nullptr) {
190 if (not host->extension(JAVA_HOST_LEVEL)) {
191 jxbt_throw_jni(env, "MSG_task_get_source() failed");
195 return (jobject) host->extension(JAVA_HOST_LEVEL);
198 JNIEXPORT jdouble JNICALL Java_org_simgrid_msg_Task_getFlopsAmount(JNIEnv * env, jobject jtask)
200 msg_task_t ptask = jtask_to_native(jtask, env);
203 jxbt_throw_notbound(env, "task", jtask);
206 return (jdouble)MSG_task_get_flops_amount(ptask);
209 JNIEXPORT void JNICALL Java_org_simgrid_msg_Task_setName(JNIEnv *env, jobject jtask, jobject jname) {
210 msg_task_t task = jtask_to_native(jtask, env);
213 jxbt_throw_notbound(env, "task", jtask);
216 const char *name = env->GetStringUTFChars((jstring) jname, 0);
218 env->SetObjectField(jtask, jtask_field_Task_name, jname);
219 MSG_task_set_name(task, name);
221 env->ReleaseStringUTFChars((jstring) jname, name);
224 JNIEXPORT void JNICALL Java_org_simgrid_msg_Task_setPriority(JNIEnv * env, jobject jtask, jdouble priority)
226 msg_task_t task = jtask_to_native(jtask, env);
229 jxbt_throw_notbound(env, "task", jtask);
232 MSG_task_set_priority(task, static_cast<double>(priority));
235 JNIEXPORT void JNICALL Java_org_simgrid_msg_Task_setFlopsAmount (JNIEnv *env, jobject jtask, jdouble computationAmount)
237 msg_task_t task = jtask_to_native(jtask, env);
240 jxbt_throw_notbound(env, "task", jtask);
243 MSG_task_set_flops_amount(task, static_cast<double>(computationAmount));
246 JNIEXPORT void JNICALL Java_org_simgrid_msg_Task_setBytesAmount (JNIEnv *env, jobject jtask, jdouble dataSize)
248 msg_task_t task = jtask_to_native(jtask, env);
251 jxbt_throw_notbound(env, "task", jtask);
254 env->SetDoubleField(jtask, jtask_field_Task_messageSize, dataSize);
255 MSG_task_set_bytes_amount(task, static_cast<double>(dataSize));
258 JNIEXPORT void JNICALL Java_org_simgrid_msg_Task_sendBounded(JNIEnv * env,jobject jtask, jstring jalias,
259 jdouble jtimeout,jdouble maxrate)
261 msg_task_t task = jtask_to_native(jtask, env);
263 jxbt_throw_notbound(env, "task", jtask);
267 /* Add a global ref into the Ctask so that the receiver can use it */
268 MSG_task_set_data(task, (void *) env->NewGlobalRef(jtask));
270 const char* alias = env->GetStringUTFChars(jalias, 0);
272 MSG_task_send_with_timeout_bounded(task, alias, static_cast<double>(jtimeout), static_cast<double>(maxrate));
273 env->ReleaseStringUTFChars(jalias, alias);
276 jmsg_throw_status(env, res);
279 JNIEXPORT jobject JNICALL Java_org_simgrid_msg_Task_receive(JNIEnv* env, jclass cls, jstring jalias, jdouble jtimeout)
281 msg_task_t task = nullptr;
283 const char *alias = env->GetStringUTFChars(jalias, 0);
284 msg_error_t rv = MSG_task_receive_ext(&task, alias, (double)jtimeout, /*host*/ nullptr);
285 env->ReleaseStringUTFChars(jalias, alias);
286 if (env->ExceptionOccurred())
289 jmsg_throw_status(env,rv);
292 jobject jtask_global = (jobject) MSG_task_get_data(task);
294 /* Convert the global ref into a local ref so that the JVM can free the stuff */
295 jobject jtask_local = env->NewLocalRef(jtask_global);
296 env->DeleteGlobalRef(jtask_global);
297 MSG_task_set_data(task, nullptr);
299 return (jobject) jtask_local;
302 JNIEXPORT jobject JNICALL Java_org_simgrid_msg_Task_irecv(JNIEnv * env, jclass cls, jstring jmailbox) {
303 jclass comm_class = env->FindClass("org/simgrid/msg/Comm");
307 //pointer to store the task object pointer.
308 msg_task_t* task = new msg_task_t(nullptr);
309 /* There should be a cache here */
311 jobject jcomm = env->NewObject(comm_class, jtask_method_Comm_constructor);
313 jxbt_throw_jni(env, "Can't create a Comm object.");
317 const char* mailbox = env->GetStringUTFChars(jmailbox, 0);
318 msg_comm_t comm = MSG_task_irecv(task, mailbox);
319 env->ReleaseStringUTFChars(jmailbox, mailbox);
321 env->SetLongField(jcomm, jtask_field_Comm_bind, (jlong) (uintptr_t)(comm));
322 env->SetLongField(jcomm, jtask_field_Comm_taskBind, (jlong) (uintptr_t)(task));
323 env->SetBooleanField(jcomm, jtask_field_Comm_receiving, JNI_TRUE);
328 JNIEXPORT jobject JNICALL Java_org_simgrid_msg_Task_receiveBounded(JNIEnv* env, jclass cls, jstring jalias,
329 jdouble jtimeout, jdouble rate)
331 msg_task_t task = nullptr;
333 const char *alias = env->GetStringUTFChars(jalias, 0);
334 msg_error_t res = MSG_task_receive_ext_bounded(&task, alias, static_cast<double>(jtimeout), /*host*/ nullptr,
335 static_cast<double>(rate));
336 if (env->ExceptionOccurred())
339 jmsg_throw_status(env, res);
342 jobject jtask_global = (jobject)MSG_task_get_data(task);
344 /* Convert the global ref into a local ref so that the JVM can free the stuff */
345 jobject jtask_local = env->NewLocalRef(jtask_global);
346 env->DeleteGlobalRef(jtask_global);
347 MSG_task_set_data(task, nullptr);
349 env->ReleaseStringUTFChars(jalias, alias);
351 return (jobject) jtask_local;
354 JNIEXPORT jobject JNICALL Java_org_simgrid_msg_Task_irecvBounded(JNIEnv * env, jclass cls, jstring jmailbox,
357 jclass comm_class = env->FindClass("org/simgrid/msg/Comm");
361 // pointer to store the task object pointer.
362 msg_task_t* task = new msg_task_t(nullptr);
364 jobject jcomm = env->NewObject(comm_class, jtask_method_Comm_constructor);
366 jxbt_throw_jni(env, "Can't create a Comm object.");
370 const char* mailbox = env->GetStringUTFChars(jmailbox, 0);
371 msg_comm_t comm = MSG_task_irecv_bounded(task, mailbox, static_cast<double>(rate));
372 env->ReleaseStringUTFChars(jmailbox, mailbox);
374 env->SetLongField(jcomm, jtask_field_Comm_bind, (jlong) (uintptr_t)(comm));
375 env->SetLongField(jcomm, jtask_field_Comm_taskBind, (jlong) (uintptr_t)(task));
376 env->SetBooleanField(jcomm, jtask_field_Comm_receiving, JNI_TRUE);
381 JNIEXPORT jobject JNICALL Java_org_simgrid_msg_Task_isend(JNIEnv *env, jobject jtask, jstring jmailbox)
385 jclass comm_class = env->FindClass("org/simgrid/msg/Comm");
390 jobject jcomm = env->NewObject(comm_class, jtask_method_Comm_constructor);
391 const char* mailbox = env->GetStringUTFChars(jmailbox, 0);
393 msg_task_t task = jtask_to_native(jtask, env);
396 env->ReleaseStringUTFChars(jmailbox, mailbox);
397 env->DeleteLocalRef(jcomm);
398 jxbt_throw_notbound(env, "task", jtask);
402 MSG_task_set_data(task, (void *) env->NewGlobalRef(jtask));
403 comm = MSG_task_isend(task,mailbox);
405 env->SetLongField(jcomm, jtask_field_Comm_bind, (jlong) (uintptr_t)(comm));
406 env->SetLongField(jcomm, jtask_field_Comm_taskBind, (jlong) (uintptr_t)(nullptr));
407 env->SetBooleanField(jcomm, jtask_field_Comm_receiving, JNI_FALSE);
409 env->ReleaseStringUTFChars(jmailbox, mailbox);
414 JNIEXPORT jobject JNICALL Java_org_simgrid_msg_Task_isendBounded(JNIEnv *env, jobject jtask, jstring jmailbox,
422 jclass comm_class = env->FindClass("org/simgrid/msg/Comm");
426 jcomm = env->NewObject(comm_class, jtask_method_Comm_constructor);
427 mailbox = env->GetStringUTFChars(jmailbox, 0);
429 task = jtask_to_native(jtask, env);
432 env->ReleaseStringUTFChars(jmailbox, mailbox);
433 env->DeleteLocalRef(jcomm);
434 jxbt_throw_notbound(env, "task", jtask);
438 MSG_task_set_data(task, (void *) env->NewGlobalRef(jtask));
439 comm = MSG_task_isend_bounded(task,mailbox,maxrate);
441 env->SetLongField(jcomm, jtask_field_Comm_bind, (jlong) (uintptr_t)(comm));
442 env->SetLongField(jcomm, jtask_field_Comm_taskBind, (jlong) (uintptr_t)(nullptr));
443 env->SetBooleanField(jcomm, jtask_field_Comm_receiving, JNI_FALSE);
445 env->ReleaseStringUTFChars(jmailbox, mailbox);
450 JNIEXPORT void JNICALL Java_org_simgrid_msg_Task_nativeFinalize(JNIEnv * env, jobject jtask)
452 msg_task_t task = jtask_to_native(jtask, env);
455 jxbt_throw_notbound(env, "task", jtask);
459 MSG_task_destroy(task);
462 static void msg_task_cancel_on_failed_dsend(void*t) {
463 msg_task_t task = (msg_task_t) t;
464 JNIEnv *env =get_current_thread_env();
465 jobject jtask_global = (jobject) MSG_task_get_data(task);
467 /* Destroy the global ref so that the JVM can free the stuff */
468 env->DeleteGlobalRef(jtask_global);
469 MSG_task_set_data(task, nullptr);
470 MSG_task_destroy(task);
473 JNIEXPORT void JNICALL Java_org_simgrid_msg_Task_dsend(JNIEnv * env, jobject jtask, jstring jalias)
475 const char *alias = env->GetStringUTFChars(jalias, 0);
477 msg_task_t task = jtask_to_native(jtask, env);
480 env->ReleaseStringUTFChars(jalias, alias);
481 jxbt_throw_notbound(env, "task", jtask);
485 /* Pass a global ref to the Jtask into the Ctask so that the receiver can use it */
486 MSG_task_set_data(task, (void *) env->NewGlobalRef(jtask));
487 MSG_task_dsend(task, alias, msg_task_cancel_on_failed_dsend);
489 env->ReleaseStringUTFChars(jalias, alias);
492 JNIEXPORT void JNICALL Java_org_simgrid_msg_Task_dsendBounded(JNIEnv * env, jobject jtask, jstring jalias,
495 const char *alias = env->GetStringUTFChars(jalias, 0);
497 msg_task_t task = jtask_to_native(jtask, env);
500 env->ReleaseStringUTFChars(jalias, alias);
501 jxbt_throw_notbound(env, "task", jtask);
505 /* Pass a global ref to the Jtask into the Ctask so that the receiver can use it */
506 MSG_task_set_data(task, (void *) env->NewGlobalRef(jtask));
507 MSG_task_dsend_bounded(task, alias, msg_task_cancel_on_failed_dsend,static_cast<double>(maxrate));
509 env->ReleaseStringUTFChars(jalias, alias);
512 JNIEXPORT jboolean JNICALL Java_org_simgrid_msg_Task_listen(JNIEnv * env, jclass cls, jstring jalias)
514 const char *alias = env->GetStringUTFChars(jalias, 0);
515 int rv = MSG_task_listen(alias);
516 env->ReleaseStringUTFChars(jalias, alias);
518 return (jboolean) rv;
521 JNIEXPORT jint JNICALL Java_org_simgrid_msg_Task_listenFrom(JNIEnv * env, jclass cls, jstring jalias)
523 const char *alias = env->GetStringUTFChars(jalias, 0);
524 int rv = MSG_task_listen_from(alias);
525 env->ReleaseStringUTFChars(jalias, alias);