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(jmsg);
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 msg_task_t task; /* the native task to create */
61 const char *name = nullptr; /* the name of the task */
63 if (jflopsAmount < 0) {
64 jxbt_throw_illegal(env, bprintf("Task flopsAmount (%f) cannot be negative", static_cast<double>(jflopsAmount)));
68 if (jbytesAmount < 0) {
69 jxbt_throw_illegal(env, bprintf("Task bytesAmount (%f) cannot be negative", static_cast<double>(jbytesAmount)));
74 /* get the C string from the java string */
75 name = env->GetStringUTFChars(jname, 0);
79 task = MSG_task_create(name, static_cast<double>(jflopsAmount), static_cast<double>(jbytesAmount), nullptr);
81 env->ReleaseStringUTFChars(jname, name);
82 /* sets the task name */
83 env->SetObjectField(jtask, jtask_field_Task_name, jname);
84 /* bind & store the task */
85 jtask_bind(jtask, task, env);
86 MSG_task_set_data(task, jtask);
89 JNIEXPORT void JNICALL Java_org_simgrid_msg_Task_parallelCreate(JNIEnv * env, jobject jtask, jstring jname,
90 jobjectArray jhosts, jdoubleArray jcomputeDurations_arg,
91 jdoubleArray jmessageSizes_arg)
93 msg_task_t task; /* the native parallel task to create */
94 const char *name; /* the name of the task */
97 double *computeDurations;
99 jdouble *jcomputeDurations;
100 jdouble *jmessageSizes;
104 if (!jcomputeDurations_arg) {
105 jxbt_throw_null(env, xbt_strdup("Parallel task flops amounts cannot be null"));
109 if (!jmessageSizes_arg) {
110 jxbt_throw_null(env, xbt_strdup("Parallel task bytes amounts cannot be null"));
115 jxbt_throw_null(env, xbt_strdup("Parallel task name cannot be null"));
119 host_count = static_cast<int>(env->GetArrayLength(jhosts));
121 hosts = xbt_new0(msg_host_t, host_count);
122 computeDurations = xbt_new0(double, host_count);
123 messageSizes = xbt_new0(double, host_count * host_count);
125 jcomputeDurations = env->GetDoubleArrayElements(jcomputeDurations_arg, 0);
126 jmessageSizes = env->GetDoubleArrayElements(jmessageSizes_arg, 0);
128 for (index = 0; index < host_count; index++) {
129 jhost = env->GetObjectArrayElement(jhosts, index);
130 hosts[index] = jhost_get_native(env, jhost);
131 computeDurations[index] = jcomputeDurations[index];
133 for (index = 0; index < host_count * host_count; index++) {
134 messageSizes[index] = jmessageSizes[index];
137 env->ReleaseDoubleArrayElements(jcomputeDurations_arg, jcomputeDurations, 0);
138 env->ReleaseDoubleArrayElements(jmessageSizes_arg, jmessageSizes, 0);
140 /* get the C string from the java string */
141 name = env->GetStringUTFChars(jname, 0);
143 task = MSG_parallel_task_create(name, host_count, hosts, computeDurations, messageSizes, nullptr);
145 env->ReleaseStringUTFChars(jname, name);
146 /* sets the task name */
147 env->SetObjectField(jtask, jtask_field_Task_name, jname);
148 /* associate the java task object and the native task */
149 jtask_bind(jtask, task, env);
151 MSG_task_set_data(task, (void *) jtask);
153 if (!MSG_task_get_data(task))
154 jxbt_throw_jni(env, "global ref allocation failed");
157 JNIEXPORT void JNICALL Java_org_simgrid_msg_Task_cancel(JNIEnv * env, jobject jtask)
159 msg_task_t ptask = jtask_to_native(jtask, env);
162 jxbt_throw_notbound(env, "task", jtask);
166 msg_error_t rv = MSG_task_cancel(ptask);
168 jxbt_check_res("MSG_task_cancel()", rv, MSG_OK, bprintf("unexpected error , please report this bug"));
171 JNIEXPORT void JNICALL Java_org_simgrid_msg_Task_execute(JNIEnv * env, jobject jtask)
173 msg_task_t task = jtask_to_native(jtask, env);
176 jxbt_throw_notbound(env, "task", jtask);
180 rv = MSG_task_execute(task);
181 if (env->ExceptionOccurred())
184 jmsg_throw_status(env, rv);
188 JNIEXPORT void JNICALL Java_org_simgrid_msg_Task_setBound(JNIEnv * env, jobject jtask, jdouble bound)
190 msg_task_t task = jtask_to_native(jtask, env);
193 jxbt_throw_notbound(env, "task", jtask);
196 MSG_task_set_bound(task, bound);
199 JNIEXPORT jstring JNICALL Java_org_simgrid_msg_Task_getName(JNIEnv * env, jobject jtask) {
200 msg_task_t task = jtask_to_native(jtask, env);
203 jxbt_throw_notbound(env, "task", jtask);
207 return env->NewStringUTF(MSG_task_get_name(task));
210 JNIEXPORT jobject JNICALL Java_org_simgrid_msg_Task_getSender(JNIEnv * env, jobject jtask) {
211 msg_process_t process;
213 msg_task_t task = jtask_to_native(jtask, env);
216 jxbt_throw_notbound(env, "task", jtask);
220 process = MSG_task_get_sender(task);
221 if (process == nullptr) {
224 return (jobject)jprocess_from_native(process);
227 JNIEXPORT jobject JNICALL Java_org_simgrid_msg_Task_getSource(JNIEnv * env, jobject jtask)
230 msg_task_t task = jtask_to_native(jtask, env);
233 jxbt_throw_notbound(env, "task", jtask);
237 host = MSG_task_get_source(task);
238 if (host == nullptr) {
241 if (!host->extension(JAVA_HOST_LEVEL)) {
242 jxbt_throw_jni(env, "MSG_task_get_source() failed");
246 return (jobject) host->extension(JAVA_HOST_LEVEL);
249 JNIEXPORT jdouble JNICALL Java_org_simgrid_msg_Task_getFlopsAmount(JNIEnv * env, jobject jtask)
251 msg_task_t ptask = jtask_to_native(jtask, env);
254 jxbt_throw_notbound(env, "task", jtask);
257 return (jdouble) MSG_task_get_flops_amount(ptask);
260 JNIEXPORT void JNICALL Java_org_simgrid_msg_Task_setName(JNIEnv *env, jobject jtask, jobject jname) {
261 msg_task_t task = jtask_to_native(jtask, env);
264 jxbt_throw_notbound(env, "task", jtask);
267 const char *name = env->GetStringUTFChars((jstring) jname, 0);
269 env->SetObjectField(jtask, jtask_field_Task_name, jname);
270 MSG_task_set_name(task, name);
272 env->ReleaseStringUTFChars((jstring) jname, name);
275 JNIEXPORT void JNICALL Java_org_simgrid_msg_Task_setPriority(JNIEnv * env, jobject jtask, jdouble priority)
277 msg_task_t task = jtask_to_native(jtask, env);
280 jxbt_throw_notbound(env, "task", jtask);
283 MSG_task_set_priority(task, static_cast<double>(priority));
286 JNIEXPORT void JNICALL Java_org_simgrid_msg_Task_setFlopsAmount (JNIEnv *env, jobject jtask, jdouble computationAmount)
288 msg_task_t task = jtask_to_native(jtask, env);
291 jxbt_throw_notbound(env, "task", jtask);
294 MSG_task_set_flops_amount(task, static_cast<double>(computationAmount));
297 JNIEXPORT void JNICALL Java_org_simgrid_msg_Task_setBytesAmount (JNIEnv *env, jobject jtask, jdouble dataSize)
299 msg_task_t task = jtask_to_native(jtask, env);
302 jxbt_throw_notbound(env, "task", jtask);
305 env->SetDoubleField(jtask, jtask_field_Task_messageSize, dataSize);
306 MSG_task_set_bytes_amount(task, static_cast<double>(dataSize));
309 JNIEXPORT void JNICALL Java_org_simgrid_msg_Task_send(JNIEnv * env,jobject jtask, jstring jalias, jdouble jtimeout)
312 const char *alias = env->GetStringUTFChars(jalias, 0);
314 msg_task_t task = jtask_to_native(jtask, env);
317 env->ReleaseStringUTFChars(jalias, alias);
318 jxbt_throw_notbound(env, "task", jtask);
322 /* Pass a global ref to the Jtask into the Ctask so that the receiver can use it */
323 MSG_task_set_data(task, (void *) env->NewGlobalRef(jtask));
324 rv = MSG_task_send_with_timeout(task, alias, static_cast<double>(jtimeout));
325 env->ReleaseStringUTFChars(jalias, alias);
328 jmsg_throw_status(env, rv);
332 JNIEXPORT void JNICALL Java_org_simgrid_msg_Task_sendBounded(JNIEnv * env,jobject jtask, jstring jalias,
333 jdouble jtimeout,jdouble maxrate)
336 const char *alias = env->GetStringUTFChars(jalias, 0);
338 msg_task_t task = jtask_to_native(jtask, env);
341 env->ReleaseStringUTFChars(jalias, alias);
342 jxbt_throw_notbound(env, "task", jtask);
346 /* Pass a global ref to the Jtask into the Ctask so that the receiver can use it */
347 MSG_task_set_data(task, (void *) env->NewGlobalRef(jtask));
348 rv = MSG_task_send_with_timeout_bounded(task, alias, static_cast<double>(jtimeout), static_cast<double>(maxrate));
349 env->ReleaseStringUTFChars(jalias, alias);
352 jmsg_throw_status(env, rv);
356 JNIEXPORT jobject JNICALL Java_org_simgrid_msg_Task_receive(JNIEnv * env, jclass cls, jstring jalias, jdouble jtimeout,
359 msg_task_t task = nullptr;
360 msg_host_t host = nullptr;
363 host = jhost_get_native(env, jhost);
366 jxbt_throw_notbound(env, "host", jhost);
371 const char *alias = env->GetStringUTFChars(jalias, 0);
372 msg_error_t rv = MSG_task_receive_ext(&task, alias, (double) jtimeout, host);
373 env->ReleaseStringUTFChars(jalias, alias);
374 if (env->ExceptionOccurred())
377 jmsg_throw_status(env,rv);
380 jobject jtask_global = (jobject) MSG_task_get_data(task);
382 /* Convert the global ref into a local ref so that the JVM can free the stuff */
383 jobject jtask_local = env->NewLocalRef(jtask_global);
384 env->DeleteGlobalRef(jtask_global);
385 MSG_task_set_data(task, nullptr);
388 return (jobject) jtask_local;
391 JNIEXPORT jobject JNICALL Java_org_simgrid_msg_Task_irecv(JNIEnv * env, jclass cls, jstring jmailbox) {
392 jclass comm_class = env->FindClass("org/simgrid/msg/Comm");
396 //pointer to store the task object pointer.
397 msg_task_t *task = xbt_new(msg_task_t,1);
399 /* There should be a cache here */
401 jobject jcomm = env->NewObject(comm_class, jtask_method_Comm_constructor);
403 jxbt_throw_jni(env, "Can't create a Comm object.");
407 const char* mailbox = env->GetStringUTFChars(jmailbox, 0);
408 msg_comm_t comm = MSG_task_irecv(task, mailbox);
409 env->ReleaseStringUTFChars(jmailbox, mailbox);
411 env->SetLongField(jcomm, jtask_field_Comm_bind, (jlong) (uintptr_t)(comm));
412 env->SetLongField(jcomm, jtask_field_Comm_taskBind, (jlong) (uintptr_t)(task));
413 env->SetBooleanField(jcomm, jtask_field_Comm_receiving, JNI_TRUE);
418 JNIEXPORT jobject JNICALL Java_org_simgrid_msg_Task_receiveBounded(JNIEnv * env, jclass cls, jstring jalias,
419 jdouble jtimeout, jobject jhost, jdouble rate)
422 msg_task_t *task = xbt_new(msg_task_t,1);
425 msg_host_t host = nullptr;
428 host = jhost_get_native(env, jhost);
431 jxbt_throw_notbound(env, "host", jhost);
436 const char *alias = env->GetStringUTFChars(jalias, 0);
437 rv = MSG_task_receive_ext_bounded(task, alias, static_cast<double>(jtimeout), host, static_cast<double>(rate));
438 if (env->ExceptionOccurred())
441 jmsg_throw_status(env,rv);
444 jobject jtask_global = (jobject) MSG_task_get_data(*task);
446 /* Convert the global ref into a local ref so that the JVM can free the stuff */
447 jobject jtask_local = env->NewLocalRef(jtask_global);
448 env->DeleteGlobalRef(jtask_global);
449 MSG_task_set_data(*task, nullptr);
451 env->ReleaseStringUTFChars(jalias, alias);
455 return (jobject) jtask_local;
458 JNIEXPORT jobject JNICALL Java_org_simgrid_msg_Task_irecvBounded(JNIEnv * env, jclass cls, jstring jmailbox,
461 jclass comm_class = env->FindClass("org/simgrid/msg/Comm");
465 // pointer to store the task object pointer.
466 msg_task_t* task = xbt_new0(msg_task_t, 1);
468 jobject jcomm = env->NewObject(comm_class, jtask_method_Comm_constructor);
470 jxbt_throw_jni(env, "Can't create a Comm object.");
474 const char* mailbox = env->GetStringUTFChars(jmailbox, 0);
475 msg_comm_t comm = MSG_task_irecv_bounded(task, mailbox, static_cast<double>(rate));
476 env->ReleaseStringUTFChars(jmailbox, mailbox);
478 env->SetLongField(jcomm, jtask_field_Comm_bind, (jlong) (uintptr_t)(comm));
479 env->SetLongField(jcomm, jtask_field_Comm_taskBind, (jlong) (uintptr_t)(task));
480 env->SetBooleanField(jcomm, jtask_field_Comm_receiving, JNI_TRUE);
485 JNIEXPORT jobject JNICALL Java_org_simgrid_msg_Task_isend(JNIEnv *env, jobject jtask, jstring jmailbox)
489 jclass comm_class = env->FindClass("org/simgrid/msg/Comm");
491 if (!comm_class) return nullptr;
493 jobject jcomm = env->NewObject(comm_class, jtask_method_Comm_constructor);
494 const char* mailbox = env->GetStringUTFChars(jmailbox, 0);
496 msg_task_t task = jtask_to_native(jtask, env);
499 env->ReleaseStringUTFChars(jmailbox, mailbox);
500 env->DeleteLocalRef(jcomm);
501 jxbt_throw_notbound(env, "task", jtask);
505 MSG_task_set_data(task, (void *) env->NewGlobalRef(jtask));
506 comm = MSG_task_isend(task,mailbox);
508 env->SetLongField(jcomm, jtask_field_Comm_bind, (jlong) (uintptr_t)(comm));
509 env->SetLongField(jcomm, jtask_field_Comm_taskBind, (jlong) (uintptr_t)(nullptr));
510 env->SetBooleanField(jcomm, jtask_field_Comm_receiving, JNI_FALSE);
512 env->ReleaseStringUTFChars(jmailbox, mailbox);
517 JNIEXPORT jobject JNICALL Java_org_simgrid_msg_Task_isendBounded(JNIEnv *env, jobject jtask, jstring jmailbox,
525 jclass comm_class = env->FindClass("org/simgrid/msg/Comm");
529 jcomm = env->NewObject(comm_class, jtask_method_Comm_constructor);
530 mailbox = env->GetStringUTFChars(jmailbox, 0);
532 task = jtask_to_native(jtask, env);
535 env->ReleaseStringUTFChars(jmailbox, mailbox);
536 env->DeleteLocalRef(jcomm);
537 jxbt_throw_notbound(env, "task", jtask);
541 MSG_task_set_data(task, (void *) env->NewGlobalRef(jtask));
542 comm = MSG_task_isend_bounded(task,mailbox,maxrate);
544 env->SetLongField(jcomm, jtask_field_Comm_bind, (jlong) (uintptr_t)(comm));
545 env->SetLongField(jcomm, jtask_field_Comm_taskBind, (jlong) (uintptr_t)(nullptr));
546 env->SetBooleanField(jcomm, jtask_field_Comm_receiving, JNI_FALSE);
548 env->ReleaseStringUTFChars(jmailbox, mailbox);
553 JNIEXPORT void JNICALL Java_org_simgrid_msg_Task_nativeFinalize(JNIEnv * env, jobject jtask)
555 msg_task_t task = jtask_to_native(jtask, env);
558 jxbt_throw_notbound(env, "task", jtask);
562 MSG_task_destroy(task);
565 static void msg_task_cancel_on_failed_dsend(void*t) {
566 msg_task_t task = (msg_task_t) t;
567 JNIEnv *env =get_current_thread_env();
568 jobject jtask_global = (jobject) MSG_task_get_data(task);
570 /* Destroy the global ref so that the JVM can free the stuff */
571 env->DeleteGlobalRef(jtask_global);
572 MSG_task_set_data(task, nullptr);
573 MSG_task_destroy(task);
576 JNIEXPORT void JNICALL Java_org_simgrid_msg_Task_dsend(JNIEnv * env, jobject jtask, jstring jalias)
578 const char *alias = env->GetStringUTFChars(jalias, 0);
580 msg_task_t task = jtask_to_native(jtask, env);
583 env->ReleaseStringUTFChars(jalias, alias);
584 jxbt_throw_notbound(env, "task", jtask);
588 /* Pass a global ref to the Jtask into the Ctask so that the receiver can use it */
589 MSG_task_set_data(task, (void *) env->NewGlobalRef(jtask));
590 MSG_task_dsend(task, alias, msg_task_cancel_on_failed_dsend);
592 env->ReleaseStringUTFChars(jalias, alias);
595 JNIEXPORT void JNICALL Java_org_simgrid_msg_Task_dsendBounded(JNIEnv * env, jobject jtask, jstring jalias,
598 const char *alias = env->GetStringUTFChars(jalias, 0);
600 msg_task_t task = jtask_to_native(jtask, env);
603 env->ReleaseStringUTFChars(jalias, alias);
604 jxbt_throw_notbound(env, "task", jtask);
608 /* Pass a global ref to the Jtask into the Ctask so that the receiver can use it */
609 MSG_task_set_data(task, (void *) env->NewGlobalRef(jtask));
610 MSG_task_dsend_bounded(task, alias, msg_task_cancel_on_failed_dsend,static_cast<double>(maxrate));
612 env->ReleaseStringUTFChars(jalias, alias);
615 JNIEXPORT jboolean JNICALL Java_org_simgrid_msg_Task_listen(JNIEnv * env, jclass cls, jstring jalias)
617 const char *alias = env->GetStringUTFChars(jalias, 0);
618 int rv = MSG_task_listen(alias);
619 env->ReleaseStringUTFChars(jalias, alias);
621 return (jboolean) rv;
624 JNIEXPORT jint JNICALL Java_org_simgrid_msg_Task_listenFrom(JNIEnv * env, jclass cls, jstring jalias)
626 const char *alias = env->GetStringUTFChars(jalias, 0);
627 int rv = MSG_task_listen_from(alias);
628 env->ReleaseStringUTFChars(jalias, alias);