1 /* Functions related to the java task instances. */
3 /* Copyright (c) 2007, 2009-2010, 2013-2015. The SimGrid Team.
4 * All rights reserved. */
6 /* This program is free software; you can redistribute it and/or modify it
7 * under the terms of the license (GNU LGPL) which comes with this package. */
11 #include <xbt/sysdep.h>
13 #include <simgrid/msg.h>
14 #include <simgrid/s4u/host.hpp>
17 #include "jmsg_host.h"
18 #include "jmsg_task.h"
19 #include "jmsg_process.h"
20 #include "jxbt_utilities.h"
22 XBT_LOG_EXTERNAL_DEFAULT_CATEGORY(jmsg);
26 static jmethodID jtask_method_Comm_constructor;
28 static jfieldID jtask_field_Task_bind;
29 static jfieldID jtask_field_Task_name;
30 static jfieldID jtask_field_Task_messageSize;
31 static jfieldID jtask_field_Comm_bind;
32 static jfieldID jtask_field_Comm_taskBind;
33 static jfieldID jtask_field_Comm_receiving;
35 void jtask_bind(jobject jtask, msg_task_t task, JNIEnv * env)
37 env->SetLongField(jtask, jtask_field_Task_bind, (intptr_t)task);
40 msg_task_t jtask_to_native_task(jobject jtask, JNIEnv * env)
42 return (msg_task_t)(intptr_t)env->GetLongField(jtask, jtask_field_Task_bind);
45 jboolean jtask_is_valid(jobject jtask, JNIEnv * env)
47 return env->GetLongField(jtask, jtask_field_Task_bind) ? JNI_TRUE : JNI_FALSE;
50 JNIEXPORT void JNICALL Java_org_simgrid_msg_Task_nativeInit(JNIEnv *env, jclass cls) {
51 jclass jtask_class_Comm = env->FindClass("org/simgrid/msg/Comm");
52 jclass jtask_class_Task = env->FindClass("org/simgrid/msg/Task");
53 xbt_assert(jtask_class_Comm && jtask_class_Task,
54 "Native initialization of msg/Comm or msg/Task failed. Please report that bug");
56 jtask_method_Comm_constructor = env->GetMethodID(jtask_class_Comm, "<init>", "()V");
57 jtask_field_Task_bind = jxbt_get_jfield(env, jtask_class_Task, "bind", "J");
58 jtask_field_Task_name = jxbt_get_jfield(env, jtask_class_Task, "name", "Ljava/lang/String;");
59 jtask_field_Task_messageSize = jxbt_get_jfield(env, jtask_class_Task, "messageSize", "D");
60 jtask_field_Comm_bind = jxbt_get_jfield(env, jtask_class_Comm, "bind", "J");
61 jtask_field_Comm_taskBind = jxbt_get_jfield(env, jtask_class_Comm, "taskBind", "J");
62 jtask_field_Comm_receiving = jxbt_get_jfield(env, jtask_class_Comm, "receiving", "Z");
63 xbt_assert(jtask_field_Task_bind && jtask_field_Comm_bind && jtask_field_Comm_taskBind &&
64 jtask_field_Comm_receiving && jtask_method_Comm_constructor,
65 "Native initialization of msg/Task failed. Please report that bug");
68 JNIEXPORT void JNICALL Java_org_simgrid_msg_Task_create(JNIEnv * env, jobject jtask, jstring jname,
69 jdouble jflopsAmount, jdouble jbytesAmount)
71 msg_task_t task; /* the native task to create */
72 const char *name = nullptr; /* the name of the task */
74 if (jflopsAmount < 0) {
75 jxbt_throw_illegal(env, bprintf("Task flopsAmount (%f) cannot be negative", static_cast<double>(jflopsAmount)));
79 if (jbytesAmount < 0) {
80 jxbt_throw_illegal(env, bprintf("Task bytesAmount (%f) cannot be negative", static_cast<double>(jbytesAmount)));
85 /* get the C string from the java string */
86 name = env->GetStringUTFChars(jname, 0);
90 task = MSG_task_create(name, static_cast<double>(jflopsAmount), static_cast<double>(jbytesAmount), nullptr);
92 env->ReleaseStringUTFChars(jname, name);
93 /* sets the task name */
94 env->SetObjectField(jtask, jtask_field_Task_name, jname);
95 /* bind & store the task */
96 jtask_bind(jtask, task, env);
97 MSG_task_set_data(task, jtask);
100 JNIEXPORT void JNICALL Java_org_simgrid_msg_Task_parallelCreate(JNIEnv * env, jobject jtask, jstring jname,
101 jobjectArray jhosts, jdoubleArray jcomputeDurations_arg,
102 jdoubleArray jmessageSizes_arg)
104 msg_task_t task; /* the native parallel task to create */
105 const char *name; /* the name of the task */
108 double *computeDurations;
109 double *messageSizes;
110 jdouble *jcomputeDurations;
111 jdouble *jmessageSizes;
115 if (!jcomputeDurations_arg) {
116 jxbt_throw_null(env, xbt_strdup("Parallel task flops amounts cannot be null"));
120 if (!jmessageSizes_arg) {
121 jxbt_throw_null(env, xbt_strdup("Parallel task bytes amounts cannot be null"));
126 jxbt_throw_null(env, xbt_strdup("Parallel task name cannot be null"));
130 host_count = static_cast<int>(env->GetArrayLength(jhosts));
132 hosts = xbt_new0(msg_host_t, host_count);
133 computeDurations = xbt_new0(double, host_count);
134 messageSizes = xbt_new0(double, host_count * host_count);
136 jcomputeDurations = env->GetDoubleArrayElements(jcomputeDurations_arg, 0);
137 jmessageSizes = env->GetDoubleArrayElements(jmessageSizes_arg, 0);
139 for (index = 0; index < host_count; index++) {
140 jhost = env->GetObjectArrayElement(jhosts, index);
141 hosts[index] = jhost_get_native(env, jhost);
142 computeDurations[index] = jcomputeDurations[index];
144 for (index = 0; index < host_count * host_count; index++) {
145 messageSizes[index] = jmessageSizes[index];
148 env->ReleaseDoubleArrayElements(jcomputeDurations_arg, jcomputeDurations, 0);
149 env->ReleaseDoubleArrayElements(jmessageSizes_arg, jmessageSizes, 0);
151 /* get the C string from the java string */
152 name = env->GetStringUTFChars(jname, 0);
154 task = MSG_parallel_task_create(name, host_count, hosts, computeDurations, messageSizes, nullptr);
156 env->ReleaseStringUTFChars(jname, name);
157 /* sets the task name */
158 env->SetObjectField(jtask, jtask_field_Task_name, jname);
159 /* associate the java task object and the native task */
160 jtask_bind(jtask, task, env);
162 MSG_task_set_data(task, (void *) jtask);
164 if (!MSG_task_get_data(task))
165 jxbt_throw_jni(env, "global ref allocation failed");
168 JNIEXPORT void JNICALL Java_org_simgrid_msg_Task_cancel(JNIEnv * env, jobject jtask)
170 msg_task_t ptask = jtask_to_native_task(jtask, env);
173 jxbt_throw_notbound(env, "task", jtask);
177 msg_error_t rv = MSG_task_cancel(ptask);
179 jxbt_check_res("MSG_task_cancel()", rv, MSG_OK, bprintf("unexpected error , please report this bug"));
182 JNIEXPORT void JNICALL Java_org_simgrid_msg_Task_execute(JNIEnv * env, jobject jtask)
184 msg_task_t task = jtask_to_native_task(jtask, env);
187 jxbt_throw_notbound(env, "task", jtask);
191 rv = MSG_task_execute(task);
192 if (env->ExceptionOccurred())
195 jmsg_throw_status(env, rv);
199 JNIEXPORT void JNICALL Java_org_simgrid_msg_Task_setBound(JNIEnv * env, jobject jtask, jdouble bound)
201 msg_task_t task = jtask_to_native_task(jtask, env);
204 jxbt_throw_notbound(env, "task", jtask);
207 MSG_task_set_bound(task, bound);
210 JNIEXPORT jstring JNICALL Java_org_simgrid_msg_Task_getName(JNIEnv * env, jobject jtask) {
211 msg_task_t task = jtask_to_native_task(jtask, env);
214 jxbt_throw_notbound(env, "task", jtask);
218 return env->NewStringUTF(MSG_task_get_name(task));
221 JNIEXPORT jobject JNICALL Java_org_simgrid_msg_Task_getSender(JNIEnv * env, jobject jtask) {
222 msg_process_t process;
224 msg_task_t task = jtask_to_native_task(jtask, env);
227 jxbt_throw_notbound(env, "task", jtask);
231 process = MSG_task_get_sender(task);
232 if (process == nullptr) {
235 return (jobject) native_to_java_process(process);
238 JNIEXPORT jobject JNICALL Java_org_simgrid_msg_Task_getSource(JNIEnv * env, jobject jtask)
241 msg_task_t task = jtask_to_native_task(jtask, env);
244 jxbt_throw_notbound(env, "task", jtask);
248 host = MSG_task_get_source(task);
249 if (host == nullptr) {
252 if (!host->extension(JAVA_HOST_LEVEL)) {
253 jxbt_throw_jni(env, "MSG_task_get_source() failed");
257 return (jobject) host->extension(JAVA_HOST_LEVEL);
260 JNIEXPORT jdouble JNICALL Java_org_simgrid_msg_Task_getFlopsAmount(JNIEnv * env, jobject jtask)
262 msg_task_t ptask = jtask_to_native_task(jtask, env);
265 jxbt_throw_notbound(env, "task", jtask);
268 return (jdouble) MSG_task_get_flops_amount(ptask);
271 JNIEXPORT void JNICALL Java_org_simgrid_msg_Task_setName(JNIEnv *env, jobject jtask, jobject jname) {
272 msg_task_t task = jtask_to_native_task(jtask, env);
275 jxbt_throw_notbound(env, "task", jtask);
278 const char *name = env->GetStringUTFChars((jstring) jname, 0);
280 env->SetObjectField(jtask, jtask_field_Task_name, jname);
281 MSG_task_set_name(task, name);
283 env->ReleaseStringUTFChars((jstring) jname, name);
286 JNIEXPORT void JNICALL Java_org_simgrid_msg_Task_setPriority(JNIEnv * env, jobject jtask, jdouble priority)
288 msg_task_t task = jtask_to_native_task(jtask, env);
291 jxbt_throw_notbound(env, "task", jtask);
294 MSG_task_set_priority(task, static_cast<double>(priority));
297 JNIEXPORT void JNICALL Java_org_simgrid_msg_Task_setFlopsAmount (JNIEnv *env, jobject jtask, jdouble computationAmount)
299 msg_task_t task = jtask_to_native_task(jtask, env);
302 jxbt_throw_notbound(env, "task", jtask);
305 MSG_task_set_flops_amount(task, static_cast<double>(computationAmount));
308 JNIEXPORT void JNICALL Java_org_simgrid_msg_Task_setBytesAmount (JNIEnv *env, jobject jtask, jdouble dataSize)
310 msg_task_t task = jtask_to_native_task(jtask, env);
313 jxbt_throw_notbound(env, "task", jtask);
316 env->SetDoubleField(jtask, jtask_field_Task_messageSize, dataSize);
317 MSG_task_set_bytes_amount(task, static_cast<double>(dataSize));
320 JNIEXPORT void JNICALL Java_org_simgrid_msg_Task_send(JNIEnv * env,jobject jtask, jstring jalias, jdouble jtimeout)
323 const char *alias = env->GetStringUTFChars(jalias, 0);
325 msg_task_t task = jtask_to_native_task(jtask, env);
328 env->ReleaseStringUTFChars(jalias, alias);
329 jxbt_throw_notbound(env, "task", jtask);
333 /* Pass a global ref to the Jtask into the Ctask so that the receiver can use it */
334 MSG_task_set_data(task, (void *) env->NewGlobalRef(jtask));
335 rv = MSG_task_send_with_timeout(task, alias, static_cast<double>(jtimeout));
336 env->ReleaseStringUTFChars(jalias, alias);
339 jmsg_throw_status(env, rv);
343 JNIEXPORT void JNICALL Java_org_simgrid_msg_Task_sendBounded(JNIEnv * env,jobject jtask, jstring jalias,
344 jdouble jtimeout,jdouble maxrate)
347 const char *alias = env->GetStringUTFChars(jalias, 0);
349 msg_task_t task = jtask_to_native_task(jtask, env);
352 env->ReleaseStringUTFChars(jalias, alias);
353 jxbt_throw_notbound(env, "task", jtask);
357 /* Pass a global ref to the Jtask into the Ctask so that the receiver can use it */
358 MSG_task_set_data(task, (void *) env->NewGlobalRef(jtask));
359 rv = MSG_task_send_with_timeout_bounded(task, alias, static_cast<double>(jtimeout), static_cast<double>(maxrate));
360 env->ReleaseStringUTFChars(jalias, alias);
363 jmsg_throw_status(env, rv);
367 JNIEXPORT jobject JNICALL Java_org_simgrid_msg_Task_receive(JNIEnv * env, jclass cls, jstring jalias, jdouble jtimeout,
370 msg_task_t task = nullptr;
371 msg_host_t host = nullptr;
374 host = jhost_get_native(env, jhost);
377 jxbt_throw_notbound(env, "host", jhost);
382 const char *alias = env->GetStringUTFChars(jalias, 0);
383 msg_error_t rv = MSG_task_receive_ext(&task, alias, (double) jtimeout, host);
384 if (env->ExceptionOccurred())
387 jmsg_throw_status(env,rv);
390 jobject jtask_global = (jobject) MSG_task_get_data(task);
392 /* Convert the global ref into a local ref so that the JVM can free the stuff */
393 jobject jtask_local = env->NewLocalRef(jtask_global);
394 env->DeleteGlobalRef(jtask_global);
395 MSG_task_set_data(task, nullptr);
397 env->ReleaseStringUTFChars(jalias, alias);
399 return (jobject) jtask_local;
402 JNIEXPORT jobject JNICALL Java_org_simgrid_msg_Task_irecv(JNIEnv * env, jclass cls, jstring jmailbox) {
403 jclass comm_class = env->FindClass("org/simgrid/msg/Comm");
407 //pointer to store the task object pointer.
408 msg_task_t *task = xbt_new(msg_task_t,1);
410 /* There should be a cache here */
412 jobject jcomm = env->NewObject(comm_class, jtask_method_Comm_constructor);
414 jxbt_throw_jni(env, "Can't create a Comm object.");
418 const char* mailbox = env->GetStringUTFChars(jmailbox, 0);
419 msg_comm_t comm = MSG_task_irecv(task, mailbox);
420 env->ReleaseStringUTFChars(jmailbox, mailbox);
422 env->SetLongField(jcomm, jtask_field_Comm_bind, (jlong) (uintptr_t)(comm));
423 env->SetLongField(jcomm, jtask_field_Comm_taskBind, (jlong) (uintptr_t)(task));
424 env->SetBooleanField(jcomm, jtask_field_Comm_receiving, JNI_TRUE);
429 JNIEXPORT jobject JNICALL Java_org_simgrid_msg_Task_receiveBounded(JNIEnv * env, jclass cls, jstring jalias,
430 jdouble jtimeout, jobject jhost, jdouble rate)
433 msg_task_t *task = xbt_new(msg_task_t,1);
436 msg_host_t host = nullptr;
439 host = jhost_get_native(env, jhost);
442 jxbt_throw_notbound(env, "host", jhost);
447 const char *alias = env->GetStringUTFChars(jalias, 0);
448 rv = MSG_task_receive_ext_bounded(task, alias, static_cast<double>(jtimeout), host, static_cast<double>(rate));
449 if (env->ExceptionOccurred())
452 jmsg_throw_status(env,rv);
455 jobject jtask_global = (jobject) MSG_task_get_data(*task);
457 /* Convert the global ref into a local ref so that the JVM can free the stuff */
458 jobject jtask_local = env->NewLocalRef(jtask_global);
459 env->DeleteGlobalRef(jtask_global);
460 MSG_task_set_data(*task, nullptr);
462 env->ReleaseStringUTFChars(jalias, alias);
466 return (jobject) jtask_local;
469 JNIEXPORT jobject JNICALL Java_org_simgrid_msg_Task_irecvBounded(JNIEnv * env, jclass cls, jstring jmailbox,
472 jclass comm_class = env->FindClass("org/simgrid/msg/Comm");
476 // pointer to store the task object pointer.
477 msg_task_t* task = xbt_new0(msg_task_t, 1);
479 jobject jcomm = env->NewObject(comm_class, jtask_method_Comm_constructor);
481 jxbt_throw_jni(env, "Can't create a Comm object.");
485 const char* mailbox = env->GetStringUTFChars(jmailbox, 0);
486 msg_comm_t comm = MSG_task_irecv_bounded(task, mailbox, static_cast<double>(rate));
487 env->ReleaseStringUTFChars(jmailbox, mailbox);
489 env->SetLongField(jcomm, jtask_field_Comm_bind, (jlong) (uintptr_t)(comm));
490 env->SetLongField(jcomm, jtask_field_Comm_taskBind, (jlong) (uintptr_t)(task));
491 env->SetBooleanField(jcomm, jtask_field_Comm_receiving, JNI_TRUE);
496 JNIEXPORT jobject JNICALL Java_org_simgrid_msg_Task_isend(JNIEnv *env, jobject jtask, jstring jmailbox)
500 jclass comm_class = env->FindClass("org/simgrid/msg/Comm");
502 if (!comm_class) return nullptr;
504 jobject jcomm = env->NewObject(comm_class, jtask_method_Comm_constructor);
505 const char* mailbox = env->GetStringUTFChars(jmailbox, 0);
507 msg_task_t task = jtask_to_native_task(jtask, env);
510 env->ReleaseStringUTFChars(jmailbox, mailbox);
511 env->DeleteLocalRef(jcomm);
512 jxbt_throw_notbound(env, "task", jtask);
516 MSG_task_set_data(task, (void *) env->NewGlobalRef(jtask));
517 comm = MSG_task_isend(task,mailbox);
519 env->SetLongField(jcomm, jtask_field_Comm_bind, (jlong) (uintptr_t)(comm));
520 env->SetLongField(jcomm, jtask_field_Comm_taskBind, (jlong) (uintptr_t)(nullptr));
521 env->SetBooleanField(jcomm, jtask_field_Comm_receiving, JNI_FALSE);
523 env->ReleaseStringUTFChars(jmailbox, mailbox);
528 JNIEXPORT jobject JNICALL Java_org_simgrid_msg_Task_isendBounded(JNIEnv *env, jobject jtask, jstring jmailbox,
536 jclass comm_class = env->FindClass("org/simgrid/msg/Comm");
540 jcomm = env->NewObject(comm_class, jtask_method_Comm_constructor);
541 mailbox = env->GetStringUTFChars(jmailbox, 0);
543 task = jtask_to_native_task(jtask, env);
546 env->ReleaseStringUTFChars(jmailbox, mailbox);
547 env->DeleteLocalRef(jcomm);
548 jxbt_throw_notbound(env, "task", jtask);
552 MSG_task_set_data(task, (void *) env->NewGlobalRef(jtask));
553 comm = MSG_task_isend_bounded(task,mailbox,maxrate);
555 env->SetLongField(jcomm, jtask_field_Comm_bind, (jlong) (uintptr_t)(comm));
556 env->SetLongField(jcomm, jtask_field_Comm_taskBind, (jlong) (uintptr_t)(nullptr));
557 env->SetBooleanField(jcomm, jtask_field_Comm_receiving, JNI_FALSE);
559 env->ReleaseStringUTFChars(jmailbox, mailbox);
564 JNIEXPORT void JNICALL Java_org_simgrid_msg_Task_nativeFinalize(JNIEnv * env, jobject jtask)
566 msg_task_t task = jtask_to_native_task(jtask, env);
569 jxbt_throw_notbound(env, "task", jtask);
573 MSG_task_destroy(task);
576 static void msg_task_cancel_on_failed_dsend(void*t) {
577 msg_task_t task = (msg_task_t) t;
578 JNIEnv *env =get_current_thread_env();
579 jobject jtask_global = (jobject) MSG_task_get_data(task);
581 /* Destroy the global ref so that the JVM can free the stuff */
582 env->DeleteGlobalRef(jtask_global);
583 MSG_task_set_data(task, nullptr);
584 MSG_task_destroy(task);
587 JNIEXPORT void JNICALL Java_org_simgrid_msg_Task_dsend(JNIEnv * env, jobject jtask, jstring jalias)
589 const char *alias = env->GetStringUTFChars(jalias, 0);
591 msg_task_t task = jtask_to_native_task(jtask, env);
594 env->ReleaseStringUTFChars(jalias, alias);
595 jxbt_throw_notbound(env, "task", jtask);
599 /* Pass a global ref to the Jtask into the Ctask so that the receiver can use it */
600 MSG_task_set_data(task, (void *) env->NewGlobalRef(jtask));
601 MSG_task_dsend(task, alias, msg_task_cancel_on_failed_dsend);
603 env->ReleaseStringUTFChars(jalias, alias);
606 JNIEXPORT void JNICALL Java_org_simgrid_msg_Task_dsendBounded(JNIEnv * env, jobject jtask, jstring jalias,
609 const char *alias = env->GetStringUTFChars(jalias, 0);
611 msg_task_t task = jtask_to_native_task(jtask, env);
614 env->ReleaseStringUTFChars(jalias, alias);
615 jxbt_throw_notbound(env, "task", jtask);
619 /* Pass a global ref to the Jtask into the Ctask so that the receiver can use it */
620 MSG_task_set_data(task, (void *) env->NewGlobalRef(jtask));
621 MSG_task_dsend_bounded(task, alias, msg_task_cancel_on_failed_dsend,static_cast<double>(maxrate));
623 env->ReleaseStringUTFChars(jalias, alias);
626 JNIEXPORT jboolean JNICALL Java_org_simgrid_msg_Task_listen(JNIEnv * env, jclass cls, jstring jalias)
628 const char *alias = env->GetStringUTFChars(jalias, 0);
629 int rv = MSG_task_listen(alias);
630 env->ReleaseStringUTFChars(jalias, alias);
632 return (jboolean) rv;
635 JNIEXPORT jint JNICALL Java_org_simgrid_msg_Task_listenFrom(JNIEnv * env, jclass cls, jstring jalias)
637 const char *alias = env->GetStringUTFChars(jalias, 0);
638 int rv = MSG_task_listen_from(alias);
639 env->ReleaseStringUTFChars(jalias, alias);