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. */
10 #include "jmsg_host.h"
11 #include "jmsg_task.h"
12 #include "jmsg_process.h"
13 #include "jxbt_utilities.h"
15 #include <simgrid/msg.h>
17 XBT_LOG_EXTERNAL_DEFAULT_CATEGORY(jmsg);
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_task(jobject jtask, JNIEnv * env)
35 return (msg_task_t)(intptr_t)env->GetLongField(jtask, jtask_field_Task_bind);
38 jboolean jtask_is_valid(jobject jtask, JNIEnv * env)
40 return env->GetLongField(jtask, jtask_field_Task_bind) ? JNI_TRUE : JNI_FALSE;
43 JNIEXPORT void JNICALL Java_org_simgrid_msg_Task_nativeInit(JNIEnv *env, jclass cls) {
44 jclass jtask_class_Comm = env->FindClass("org/simgrid/msg/Comm");
45 jclass jtask_class_Task = env->FindClass("org/simgrid/msg/Task");
47 jtask_method_Comm_constructor = env->GetMethodID(jtask_class_Comm, "<init>", "()V");
48 jtask_field_Task_bind = jxbt_get_jfield(env, jtask_class_Task, "bind", "J");
49 jtask_field_Task_name = jxbt_get_jfield(env, jtask_class_Task, "name", "Ljava/lang/String;");
50 jtask_field_Task_messageSize = jxbt_get_jfield(env, jtask_class_Task, "messageSize", "D");
51 jtask_field_Comm_bind = jxbt_get_jfield(env, jtask_class_Comm, "bind", "J");
52 jtask_field_Comm_taskBind = jxbt_get_jfield(env, jtask_class_Comm, "taskBind", "J");
53 jtask_field_Comm_receiving = jxbt_get_jfield(env, jtask_class_Comm, "receiving", "Z");
54 if (!jtask_field_Task_bind || !jtask_class_Task || !jtask_field_Comm_bind || !jtask_field_Comm_taskBind ||
55 !jtask_field_Comm_receiving || !jtask_method_Comm_constructor) {
56 jxbt_throw_native(env,bprintf("Can't find some fields in Java class."));
60 JNIEXPORT void JNICALL Java_org_simgrid_msg_Task_create(JNIEnv * env, jobject jtask, jstring jname,
61 jdouble jflopsAmount, jdouble jbytesAmount)
63 msg_task_t task; /* the native task to create */
64 const char *name = nullptr; /* the name of the task */
66 if (jflopsAmount < 0) {
67 jxbt_throw_illegal(env, bprintf("Task flopsAmount (%f) cannot be negative", (double) jflopsAmount));
71 if (jbytesAmount < 0) {
72 jxbt_throw_illegal(env, bprintf("Task bytesAmount (%f) cannot be negative", (double) jbytesAmount));
77 /* get the C string from the java string */
78 name = env->GetStringUTFChars(jname, 0);
82 task = MSG_task_create(name, (double) jflopsAmount, (double) jbytesAmount, nullptr);
84 env->ReleaseStringUTFChars(jname, name);
85 /* sets the task name */
86 env->SetObjectField(jtask, jtask_field_Task_name, jname);
87 /* bind & store the task */
88 jtask_bind(jtask, task, env);
89 MSG_task_set_data(task, jtask);
92 JNIEXPORT void JNICALL Java_org_simgrid_msg_Task_parallelCreate(JNIEnv * env, jobject jtask, jstring jname,
93 jobjectArray jhosts, jdoubleArray jcomputeDurations_arg,
94 jdoubleArray jmessageSizes_arg)
96 msg_task_t task; /* the native parallel task to create */
97 const char *name; /* the name of the task */
100 double *computeDurations;
101 double *messageSizes;
102 jdouble *jcomputeDurations;
103 jdouble *jmessageSizes;
107 if (!jcomputeDurations_arg) {
108 jxbt_throw_null(env, xbt_strdup("Parallel task flops amounts cannot be null"));
112 if (!jmessageSizes_arg) {
113 jxbt_throw_null(env, xbt_strdup("Parallel task bytes amounts cannot be null"));
118 jxbt_throw_null(env, xbt_strdup("Parallel task name cannot be null"));
122 host_count = (int) env->GetArrayLength(jhosts);
124 hosts = xbt_new0(msg_host_t, host_count);
125 computeDurations = xbt_new0(double, host_count);
126 messageSizes = xbt_new0(double, host_count * host_count);
128 jcomputeDurations = env->GetDoubleArrayElements(jcomputeDurations_arg, 0);
129 jmessageSizes = env->GetDoubleArrayElements(jmessageSizes_arg, 0);
131 for (index = 0; index < host_count; index++) {
132 jhost = env->GetObjectArrayElement(jhosts, index);
133 hosts[index] = jhost_get_native(env, jhost);
134 computeDurations[index] = jcomputeDurations[index];
136 for (index = 0; index < host_count * host_count; index++) {
137 messageSizes[index] = jmessageSizes[index];
140 env->ReleaseDoubleArrayElements(jcomputeDurations_arg, jcomputeDurations, 0);
141 env->ReleaseDoubleArrayElements(jmessageSizes_arg, jmessageSizes, 0);
143 /* get the C string from the java string */
144 name = env->GetStringUTFChars(jname, 0);
146 task = MSG_parallel_task_create(name, host_count, hosts, computeDurations, messageSizes, nullptr);
148 env->ReleaseStringUTFChars(jname, name);
149 /* sets the task name */
150 env->SetObjectField(jtask, jtask_field_Task_name, jname);
151 /* associate the java task object and the native task */
152 jtask_bind(jtask, task, env);
154 MSG_task_set_data(task, (void *) jtask);
156 if (!MSG_task_get_data(task))
157 jxbt_throw_jni(env, "global ref allocation failed");
160 JNIEXPORT void JNICALL Java_org_simgrid_msg_Task_cancel(JNIEnv * env, jobject jtask)
162 msg_task_t ptask = jtask_to_native_task(jtask, env);
165 jxbt_throw_notbound(env, "task", jtask);
169 msg_error_t rv = MSG_task_cancel(ptask);
171 jxbt_check_res("MSG_task_cancel()", rv, MSG_OK, bprintf("unexpected error , please report this bug"));
174 JNIEXPORT void JNICALL Java_org_simgrid_msg_Task_execute(JNIEnv * env, jobject jtask)
176 msg_task_t task = jtask_to_native_task(jtask, env);
179 jxbt_throw_notbound(env, "task", jtask);
183 rv = MSG_task_execute(task);
184 if (env->ExceptionOccurred())
187 jmsg_throw_status(env, rv);
191 JNIEXPORT void JNICALL Java_org_simgrid_msg_Task_setBound(JNIEnv * env, jobject jtask, jdouble bound)
193 msg_task_t task = jtask_to_native_task(jtask, env);
196 jxbt_throw_notbound(env, "task", jtask);
199 MSG_task_set_bound(task, bound);
202 JNIEXPORT jstring JNICALL Java_org_simgrid_msg_Task_getName(JNIEnv * env, jobject jtask) {
203 msg_task_t task = jtask_to_native_task(jtask, env);
206 jxbt_throw_notbound(env, "task", jtask);
210 return env->NewStringUTF(MSG_task_get_name(task));
213 JNIEXPORT jobject JNICALL Java_org_simgrid_msg_Task_getSender(JNIEnv * env, jobject jtask) {
214 msg_process_t process;
216 msg_task_t task = jtask_to_native_task(jtask, env);
219 jxbt_throw_notbound(env, "task", jtask);
223 process = MSG_task_get_sender(task);
224 if (process == nullptr) {
227 return (jobject) native_to_java_process(process);
230 JNIEXPORT jobject JNICALL Java_org_simgrid_msg_Task_getSource(JNIEnv * env, jobject jtask)
233 msg_task_t task = jtask_to_native_task(jtask, env);
236 jxbt_throw_notbound(env, "task", jtask);
240 host = MSG_task_get_source(task);
241 if (host == nullptr) {
244 if (!host->extension(JAVA_HOST_LEVEL)) {
245 jxbt_throw_jni(env, "MSG_task_get_source() failed");
249 return (jobject) host->extension(JAVA_HOST_LEVEL);
252 JNIEXPORT jdouble JNICALL Java_org_simgrid_msg_Task_getFlopsAmount(JNIEnv * env, jobject jtask)
254 msg_task_t ptask = jtask_to_native_task(jtask, env);
257 jxbt_throw_notbound(env, "task", jtask);
260 return (jdouble) MSG_task_get_flops_amount(ptask);
263 JNIEXPORT void JNICALL Java_org_simgrid_msg_Task_setName(JNIEnv *env, jobject jtask, jobject jname) {
264 msg_task_t task = jtask_to_native_task(jtask, env);
267 jxbt_throw_notbound(env, "task", jtask);
270 const char *name = env->GetStringUTFChars((jstring) jname, 0);
272 env->SetObjectField(jtask, jtask_field_Task_name, jname);
273 MSG_task_set_name(task, name);
275 env->ReleaseStringUTFChars((jstring) jname, name);
278 JNIEXPORT void JNICALL Java_org_simgrid_msg_Task_setPriority(JNIEnv * env, jobject jtask, jdouble priority)
280 msg_task_t task = jtask_to_native_task(jtask, env);
283 jxbt_throw_notbound(env, "task", jtask);
286 MSG_task_set_priority(task, (double) priority);
289 JNIEXPORT void JNICALL Java_org_simgrid_msg_Task_setFlopsAmount (JNIEnv *env, jobject jtask, jdouble computationAmount)
291 msg_task_t task = jtask_to_native_task(jtask, env);
294 jxbt_throw_notbound(env, "task", jtask);
297 MSG_task_set_flops_amount(task, (double) computationAmount);
300 JNIEXPORT void JNICALL Java_org_simgrid_msg_Task_setBytesAmount (JNIEnv *env, jobject jtask, jdouble dataSize)
302 msg_task_t task = jtask_to_native_task(jtask, env);
305 jxbt_throw_notbound(env, "task", jtask);
308 env->SetDoubleField(jtask, jtask_field_Task_messageSize, dataSize);
309 MSG_task_set_bytes_amount(task, (double) dataSize);
312 JNIEXPORT void JNICALL Java_org_simgrid_msg_Task_send(JNIEnv * env,jobject jtask, jstring jalias, jdouble jtimeout)
315 const char *alias = env->GetStringUTFChars(jalias, 0);
317 msg_task_t task = jtask_to_native_task(jtask, env);
320 env->ReleaseStringUTFChars(jalias, alias);
321 jxbt_throw_notbound(env, "task", jtask);
325 /* Pass a global ref to the Jtask into the Ctask so that the receiver can use it */
326 MSG_task_set_data(task, (void *) env->NewGlobalRef(jtask));
327 rv = MSG_task_send_with_timeout(task, alias, (double) jtimeout);
328 env->ReleaseStringUTFChars(jalias, alias);
331 jmsg_throw_status(env, rv);
335 JNIEXPORT void JNICALL Java_org_simgrid_msg_Task_sendBounded(JNIEnv * env,jobject jtask, jstring jalias,
336 jdouble jtimeout,jdouble maxrate)
339 const char *alias = env->GetStringUTFChars(jalias, 0);
341 msg_task_t task = jtask_to_native_task(jtask, env);
344 env->ReleaseStringUTFChars(jalias, alias);
345 jxbt_throw_notbound(env, "task", jtask);
349 /* Pass a global ref to the Jtask into the Ctask so that the receiver can use it */
350 MSG_task_set_data(task, (void *) env->NewGlobalRef(jtask));
351 rv = MSG_task_send_with_timeout_bounded(task, alias, (double) jtimeout, (double) maxrate);
352 env->ReleaseStringUTFChars(jalias, alias);
355 jmsg_throw_status(env, rv);
359 JNIEXPORT jobject JNICALL Java_org_simgrid_msg_Task_receive(JNIEnv * env, jclass cls, jstring jalias, jdouble jtimeout,
362 msg_task_t task = nullptr;
364 msg_host_t host = nullptr;
365 jobject jtask_global, jtask_local;
368 host = jhost_get_native(env, jhost);
371 jxbt_throw_notbound(env, "host", jhost);
376 const char *alias = env->GetStringUTFChars(jalias, 0);
377 msg_error_t rv = MSG_task_receive_ext(&task, alias, (double) jtimeout, host);
378 if (env->ExceptionOccurred())
381 jmsg_throw_status(env,rv);
384 jtask_global = (jobject) MSG_task_get_data(task);
386 /* Convert the global ref into a local ref so that the JVM can free the stuff */
387 jtask_local = env->NewLocalRef(jtask_global);
388 env->DeleteGlobalRef(jtask_global);
389 MSG_task_set_data(task, nullptr);
391 env->ReleaseStringUTFChars(jalias, alias);
393 return (jobject) jtask_local;
396 JNIEXPORT jobject JNICALL Java_org_simgrid_msg_Task_irecv(JNIEnv * env, jclass cls, jstring jmailbox) {
400 //pointer to store the task object pointer.
401 msg_task_t *task = xbt_new(msg_task_t,1);
403 /* There should be a cache here */
404 comm_class = env->FindClass("org/simgrid/msg/Comm");
407 jxbt_throw_native(env,bprintf("fieldID or methodID or class not found."));
411 jobject jcomm = env->NewObject(comm_class, jtask_method_Comm_constructor);
413 jxbt_throw_native(env,bprintf("Can't create a Comm object."));
417 mailbox = env->GetStringUTFChars(jmailbox, 0);
419 comm = MSG_task_irecv(task,mailbox);
421 env->SetLongField(jcomm, jtask_field_Comm_bind, (jlong) (uintptr_t)(comm));
422 env->SetLongField(jcomm, jtask_field_Comm_taskBind, (jlong) (uintptr_t)(task));
423 env->SetBooleanField(jcomm, jtask_field_Comm_receiving, JNI_TRUE);
425 env->ReleaseStringUTFChars(jmailbox, mailbox);
430 JNIEXPORT jobject JNICALL Java_org_simgrid_msg_Task_receiveBounded(JNIEnv * env, jclass cls, jstring jalias,
431 jdouble jtimeout, jobject jhost, jdouble rate)
434 msg_task_t *task = xbt_new(msg_task_t,1);
437 msg_host_t host = nullptr;
438 jobject jtask_global, jtask_local;
442 host = jhost_get_native(env, jhost);
445 jxbt_throw_notbound(env, "host", jhost);
450 alias = env->GetStringUTFChars(jalias, 0);
451 rv = MSG_task_receive_ext_bounded(task, alias, (double) jtimeout, host, (double) rate);
452 if (env->ExceptionOccurred())
455 jmsg_throw_status(env,rv);
458 jtask_global = (jobject) MSG_task_get_data(*task);
460 /* Convert the global ref into a local ref so that the JVM can free the stuff */
461 jtask_local = env->NewLocalRef(jtask_global);
462 env->DeleteGlobalRef(jtask_global);
463 MSG_task_set_data(*task, nullptr);
465 env->ReleaseStringUTFChars(jalias, alias);
469 return (jobject) jtask_local;
472 JNIEXPORT jobject JNICALL Java_org_simgrid_msg_Task_irecvBounded(JNIEnv * env, jclass cls, jstring jmailbox,
478 //pointer to store the task object pointer.
479 msg_task_t *task = xbt_new(msg_task_t,1);
481 /* There should be a cac hee */
482 comm_class = env->FindClass("org/simgrid/msg/Comm");
485 jxbt_throw_native(env,bprintf("fieldID or methodID or class not found."));
489 jobject jcomm = env->NewObject(comm_class, jtask_method_Comm_constructor);
491 jxbt_throw_native(env,bprintf("Can't create a Comm object."));
495 mailbox = env->GetStringUTFChars(jmailbox, 0);
497 comm = MSG_task_irecv_bounded(task,mailbox, (double) rate);
499 env->SetLongField(jcomm, jtask_field_Comm_bind, (jlong) (uintptr_t)(comm));
500 env->SetLongField(jcomm, jtask_field_Comm_taskBind, (jlong) (uintptr_t)(task));
501 env->SetBooleanField(jcomm, jtask_field_Comm_receiving, JNI_TRUE);
503 env->ReleaseStringUTFChars(jmailbox, mailbox);
508 JNIEXPORT jobject JNICALL Java_org_simgrid_msg_Task_isend(JNIEnv *env, jobject jtask, jstring jmailbox)
516 comm_class = env->FindClass("org/simgrid/msg/Comm");
518 if (!comm_class) return nullptr;
520 jcomm = env->NewObject(comm_class, jtask_method_Comm_constructor);
521 mailbox = env->GetStringUTFChars(jmailbox, 0);
523 task = jtask_to_native_task(jtask, env);
526 env->ReleaseStringUTFChars(jmailbox, mailbox);
527 env->DeleteLocalRef(jcomm);
528 jxbt_throw_notbound(env, "task", jtask);
532 MSG_task_set_data(task, (void *) env->NewGlobalRef(jtask));
533 comm = MSG_task_isend(task,mailbox);
535 env->SetLongField(jcomm, jtask_field_Comm_bind, (jlong) (uintptr_t)(comm));
536 env->SetLongField(jcomm, jtask_field_Comm_taskBind, (jlong) (uintptr_t)(nullptr));
537 env->SetBooleanField(jcomm, jtask_field_Comm_receiving, JNI_FALSE);
539 env->ReleaseStringUTFChars(jmailbox, mailbox);
544 JNIEXPORT jobject JNICALL Java_org_simgrid_msg_Task_isendBounded(JNIEnv *env, jobject jtask, jstring jmailbox,
553 comm_class = env->FindClass("org/simgrid/msg/Comm");
555 if (!comm_class) return nullptr;
557 jcomm = env->NewObject(comm_class, jtask_method_Comm_constructor);
558 mailbox = env->GetStringUTFChars(jmailbox, 0);
560 task = jtask_to_native_task(jtask, env);
563 env->ReleaseStringUTFChars(jmailbox, mailbox);
564 env->DeleteLocalRef(jcomm);
565 jxbt_throw_notbound(env, "task", jtask);
569 MSG_task_set_data(task, (void *) env->NewGlobalRef(jtask));
570 comm = MSG_task_isend_bounded(task,mailbox,maxrate);
572 env->SetLongField(jcomm, jtask_field_Comm_bind, (jlong) (uintptr_t)(comm));
573 env->SetLongField(jcomm, jtask_field_Comm_taskBind, (jlong) (uintptr_t)(nullptr));
574 env->SetBooleanField(jcomm, jtask_field_Comm_receiving, JNI_FALSE);
576 env->ReleaseStringUTFChars(jmailbox, mailbox);
581 JNIEXPORT void JNICALL Java_org_simgrid_msg_Task_nativeFinalize(JNIEnv * env, jobject jtask)
583 msg_task_t task = jtask_to_native_task(jtask, env);
586 jxbt_throw_notbound(env, "task", jtask);
590 MSG_task_destroy(task);
593 static void msg_task_cancel_on_failed_dsend(void*t) {
594 msg_task_t task = (msg_task_t) t;
595 JNIEnv *env =get_current_thread_env();
596 jobject jtask_global = (jobject) MSG_task_get_data(task);
598 /* Destroy the global ref so that the JVM can free the stuff */
599 env->DeleteGlobalRef(jtask_global);
600 MSG_task_set_data(task, nullptr);
601 MSG_task_destroy(task);
604 JNIEXPORT void JNICALL Java_org_simgrid_msg_Task_dsend(JNIEnv * env, jobject jtask, jstring jalias)
606 const char *alias = env->GetStringUTFChars(jalias, 0);
608 msg_task_t task = jtask_to_native_task(jtask, env);
611 env->ReleaseStringUTFChars(jalias, alias);
612 jxbt_throw_notbound(env, "task", jtask);
616 /* Pass a global ref to the Jtask into the Ctask so that the receiver can use it */
617 MSG_task_set_data(task, (void *) env->NewGlobalRef(jtask));
618 MSG_task_dsend(task, alias, msg_task_cancel_on_failed_dsend);
620 env->ReleaseStringUTFChars(jalias, alias);
623 JNIEXPORT void JNICALL Java_org_simgrid_msg_Task_dsendBounded(JNIEnv * env, jobject jtask, jstring jalias,
626 const char *alias = env->GetStringUTFChars(jalias, 0);
628 msg_task_t task = jtask_to_native_task(jtask, env);
631 env->ReleaseStringUTFChars(jalias, alias);
632 jxbt_throw_notbound(env, "task", jtask);
636 /* Pass a global ref to the Jtask into the Ctask so that the receiver can use it */
637 MSG_task_set_data(task, (void *) env->NewGlobalRef(jtask));
638 MSG_task_dsend_bounded(task, alias, msg_task_cancel_on_failed_dsend,(double)maxrate);
640 env->ReleaseStringUTFChars(jalias, alias);
643 JNIEXPORT jboolean JNICALL Java_org_simgrid_msg_Task_listen(JNIEnv * env, jclass cls, jstring jalias)
648 alias = env->GetStringUTFChars(jalias, 0);
649 rv = MSG_task_listen(alias);
650 env->ReleaseStringUTFChars(jalias, alias);
652 return (jboolean) rv;
655 JNIEXPORT jint JNICALL Java_org_simgrid_msg_Task_listenFrom(JNIEnv * env, jclass cls, jstring jalias)
658 const char *alias = env->GetStringUTFChars(jalias, 0);
659 rv = MSG_task_listen_from(alias);
660 env->ReleaseStringUTFChars(jalias, alias);