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 "jmsg_host.h"
12 #include "jmsg_task.h"
14 #include "jxbt_utilities.h"
16 #include <simgrid/msg.h>
18 XBT_LOG_EXTERNAL_DEFAULT_CATEGORY(jmsg);
20 jobject native_to_java_process(msg_process_t process);
22 static jmethodID jtask_method_Comm_constructor;
24 static jfieldID jtask_field_Task_bind;
25 static jfieldID jtask_field_Task_name;
26 static jfieldID jtask_field_Task_messageSize;
27 static jfieldID jtask_field_Comm_bind;
28 static jfieldID jtask_field_Comm_taskBind;
29 static jfieldID jtask_field_Comm_receiving;
31 void jtask_bind(jobject jtask, msg_task_t task, JNIEnv * env)
33 env->SetLongField(jtask, jtask_field_Task_bind, (intptr_t)task);
36 msg_task_t jtask_to_native_task(jobject jtask, JNIEnv * env)
38 return (msg_task_t)(intptr_t)env->GetLongField(jtask, jtask_field_Task_bind);
41 jboolean jtask_is_valid(jobject jtask, JNIEnv * env)
43 return env->GetLongField(jtask, jtask_field_Task_bind) ? JNI_TRUE : JNI_FALSE;
46 JNIEXPORT void JNICALL
47 Java_org_simgrid_msg_Task_nativeInit(JNIEnv *env, jclass cls) {
48 jclass jtask_class_Comm = env->FindClass("org/simgrid/msg/Comm");
49 jclass jtask_class_Task = env->FindClass("org/simgrid/msg/Task");
51 jtask_method_Comm_constructor = env->GetMethodID(jtask_class_Comm, "<init>", "()V");
52 jtask_field_Task_bind = jxbt_get_jfield(env, jtask_class_Task, "bind", "J");
53 jtask_field_Task_name = jxbt_get_jfield(env, jtask_class_Task, "name", "Ljava/lang/String;");
54 jtask_field_Task_messageSize = jxbt_get_jfield(env, jtask_class_Task, "messageSize", "D");
55 jtask_field_Comm_bind = jxbt_get_jfield(env, jtask_class_Comm, "bind", "J");
56 jtask_field_Comm_taskBind = jxbt_get_jfield(env, jtask_class_Comm, "taskBind", "J");
57 jtask_field_Comm_receiving = jxbt_get_jfield(env, jtask_class_Comm, "receiving", "Z");
58 if (!jtask_field_Task_bind || !jtask_class_Task || !jtask_field_Comm_bind || !jtask_field_Comm_taskBind ||
59 !jtask_field_Comm_receiving || !jtask_method_Comm_constructor) {
60 jxbt_throw_native(env,bprintf("Can't find some fields in Java class."));
64 JNIEXPORT void JNICALL
65 Java_org_simgrid_msg_Task_create(JNIEnv * env,
66 jobject jtask, jstring jname,
70 msg_task_t task; /* the native task to create */
71 const char *name = NULL; /* the name of the task */
73 if (jflopsAmount < 0) {
74 jxbt_throw_illegal(env,
76 ("Task flopsAmount (%f) cannot be negative",
77 (double) jflopsAmount));
81 if (jbytesAmount < 0) {
82 jxbt_throw_illegal(env,
83 bprintf("Task bytesAmount (%f) cannot be negative",
84 (double) jbytesAmount));
89 /* get the C string from the java string */
90 name = env->GetStringUTFChars(jname, 0);
95 MSG_task_create(name, (double) jflopsAmount,
96 (double) jbytesAmount, NULL);
98 env->ReleaseStringUTFChars(jname, name);
99 /* sets the task name */
100 env->SetObjectField(jtask, jtask_field_Task_name, jname);
101 /* bind & store the task */
102 jtask_bind(jtask, task, env);
103 MSG_task_set_data(task, jtask);
106 JNIEXPORT void JNICALL
107 Java_org_simgrid_msg_Task_parallelCreate(JNIEnv * env,
112 jcomputeDurations_arg,
116 msg_task_t task; /* the native parallel task to create */
117 const char *name; /* the name of the task */
120 double *computeDurations;
121 double *messageSizes;
122 jdouble *jcomputeDurations;
123 jdouble *jmessageSizes;
128 if (!jcomputeDurations_arg) {
131 ("Parallel task flops amounts cannot be null"));
135 if (!jmessageSizes_arg) {
138 ("Parallel task bytes amounts cannot be null"));
143 jxbt_throw_null(env, xbt_strdup("Parallel task name cannot be null"));
147 host_count = (int) env->GetArrayLength(jhosts);
150 hosts = xbt_new0(msg_host_t, host_count);
151 computeDurations = xbt_new0(double, host_count);
152 messageSizes = xbt_new0(double, host_count * host_count);
155 env->GetDoubleArrayElements(jcomputeDurations_arg, 0);
157 env->GetDoubleArrayElements(jmessageSizes_arg, 0);
159 for (index = 0; index < host_count; index++) {
160 jhost = env->GetObjectArrayElement(jhosts, index);
161 hosts[index] = jhost_get_native(env, jhost);
162 computeDurations[index] = jcomputeDurations[index];
164 for (index = 0; index < host_count * host_count; index++) {
165 messageSizes[index] = jmessageSizes[index];
168 env->ReleaseDoubleArrayElements(jcomputeDurations_arg,
169 jcomputeDurations, 0);
170 env->ReleaseDoubleArrayElements(jmessageSizes_arg, jmessageSizes, 0);
172 /* get the C string from the java string */
173 name = env->GetStringUTFChars(jname, 0);
176 MSG_parallel_task_create(name, host_count, hosts, computeDurations,
179 env->ReleaseStringUTFChars(jname, name);
180 /* sets the task name */
181 env->SetObjectField(jtask, jtask_field_Task_name, jname);
182 /* associate the java task object and the native task */
183 jtask_bind(jtask, task, env);
185 MSG_task_set_data(task, (void *) jtask);
187 if (!MSG_task_get_data(task))
188 jxbt_throw_jni(env, "global ref allocation failed");
191 JNIEXPORT void JNICALL
192 Java_org_simgrid_msg_Task_cancel(JNIEnv * env,
195 msg_task_t ptask = jtask_to_native_task(jtask, env);
198 jxbt_throw_notbound(env, "task", jtask);
202 msg_error_t rv = MSG_task_cancel(ptask);
204 jxbt_check_res("MSG_task_cancel()", rv, MSG_OK,
205 bprintf("unexpected error , please report this bug"));
208 JNIEXPORT void JNICALL
209 Java_org_simgrid_msg_Task_execute(JNIEnv * env, jobject jtask)
211 msg_task_t task = jtask_to_native_task(jtask, env);
214 jxbt_throw_notbound(env, "task", jtask);
218 rv = MSG_task_execute(task);
219 if (env->ExceptionOccurred())
222 jmsg_throw_status(env, rv);
226 JNIEXPORT void JNICALL
227 Java_org_simgrid_msg_Task_setBound(JNIEnv * env, jobject jtask, jdouble load)
229 msg_task_t task = jtask_to_native_task(jtask, env);
232 jxbt_throw_notbound(env, "task", jtask);
235 MSG_task_set_bound(task, load);
238 JNIEXPORT jstring JNICALL
239 Java_org_simgrid_msg_Task_getName(JNIEnv * env,
241 msg_task_t task = jtask_to_native_task(jtask, env);
244 jxbt_throw_notbound(env, "task", jtask);
248 return env->NewStringUTF(MSG_task_get_name(task));
251 JNIEXPORT jobject JNICALL
252 Java_org_simgrid_msg_Task_getSender(JNIEnv * env,
254 msg_process_t process;
256 msg_task_t task = jtask_to_native_task(jtask, env);
259 jxbt_throw_notbound(env, "task", jtask);
263 process = MSG_task_get_sender(task);
264 if (process == NULL) {
267 return (jobject) native_to_java_process(process);
270 JNIEXPORT jobject JNICALL
271 Java_org_simgrid_msg_Task_getSource(JNIEnv * env,
275 msg_task_t task = jtask_to_native_task(jtask, env);
278 jxbt_throw_notbound(env, "task", jtask);
282 host = MSG_task_get_source(task);
286 if (!xbt_lib_get_level(host, JAVA_HOST_LEVEL)) {
287 jxbt_throw_jni(env, "MSG_task_get_source() failed");
291 return (jobject) xbt_lib_get_level(host, JAVA_HOST_LEVEL);
294 JNIEXPORT jdouble JNICALL
295 Java_org_simgrid_msg_Task_getFlopsAmount(JNIEnv * env, jobject jtask)
297 msg_task_t ptask = jtask_to_native_task(jtask, env);
300 jxbt_throw_notbound(env, "task", jtask);
303 return (jdouble) MSG_task_get_flops_amount(ptask);
306 JNIEXPORT void JNICALL
307 Java_org_simgrid_msg_Task_setName(JNIEnv *env, jobject jtask, jobject jname) {
308 msg_task_t task = jtask_to_native_task(jtask, env);
311 jxbt_throw_notbound(env, "task", jtask);
314 const char *name = env->GetStringUTFChars((jstring) jname, 0);
316 env->SetObjectField(jtask, jtask_field_Task_name, jname);
317 MSG_task_set_name(task, name);
319 env->ReleaseStringUTFChars((jstring) jname, name);
321 JNIEXPORT void JNICALL
322 Java_org_simgrid_msg_Task_setPriority(JNIEnv * env,
323 jobject jtask, jdouble priority)
325 msg_task_t task = jtask_to_native_task(jtask, env);
328 jxbt_throw_notbound(env, "task", jtask);
331 MSG_task_set_priority(task, (double) priority);
333 JNIEXPORT void JNICALL
334 Java_org_simgrid_msg_Task_setFlopsAmount
335 (JNIEnv *env, jobject jtask, jdouble computationAmount) {
336 msg_task_t task = jtask_to_native_task(jtask, env);
339 jxbt_throw_notbound(env, "task", jtask);
342 MSG_task_set_flops_amount(task, (double) computationAmount);
344 JNIEXPORT void JNICALL
345 Java_org_simgrid_msg_Task_setBytesAmount
346 (JNIEnv *env, jobject jtask, jdouble dataSize) {
347 msg_task_t task = jtask_to_native_task(jtask, env);
350 jxbt_throw_notbound(env, "task", jtask);
353 env->SetDoubleField(jtask, jtask_field_Task_messageSize, dataSize);
354 MSG_task_set_bytes_amount(task, (double) dataSize);
357 JNIEXPORT void JNICALL
358 Java_org_simgrid_msg_Task_send(JNIEnv * env,jobject jtask,
363 const char *alias = env->GetStringUTFChars(jalias, 0);
365 msg_task_t task = jtask_to_native_task(jtask, env);
369 env->ReleaseStringUTFChars(jalias, alias);
370 jxbt_throw_notbound(env, "task", jtask);
374 /* Pass a global ref to the Jtask into the Ctask so that the receiver can use it */
375 MSG_task_set_data(task, (void *) env->NewGlobalRef(jtask));
376 rv = MSG_task_send_with_timeout(task, alias, (double) jtimeout);
377 env->ReleaseStringUTFChars(jalias, alias);
380 jmsg_throw_status(env, rv);
384 JNIEXPORT void JNICALL
385 Java_org_simgrid_msg_Task_sendBounded(JNIEnv * env,jobject jtask,
391 const char *alias = env->GetStringUTFChars(jalias, 0);
393 msg_task_t task = jtask_to_native_task(jtask, env);
397 env->ReleaseStringUTFChars(jalias, alias);
398 jxbt_throw_notbound(env, "task", jtask);
402 /* Pass a global ref to the Jtask into the Ctask so that the receiver can use it */
403 MSG_task_set_data(task, (void *) env->NewGlobalRef(jtask));
404 rv = MSG_task_send_with_timeout_bounded(task, alias, (double) jtimeout, (double) maxrate);
405 env->ReleaseStringUTFChars(jalias, alias);
408 jmsg_throw_status(env, rv);
412 JNIEXPORT jobject JNICALL
413 Java_org_simgrid_msg_Task_receive(JNIEnv * env, jclass cls,
414 jstring jalias, jdouble jtimeout,
418 msg_task_t *task = xbt_new(msg_task_t,1);
421 msg_host_t host = NULL;
422 jobject jtask_global, jtask_local;
426 host = jhost_get_native(env, jhost);
429 jxbt_throw_notbound(env, "host", jhost);
434 alias = env->GetStringUTFChars(jalias, 0);
435 rv = MSG_task_receive_ext(task, alias, (double) jtimeout, host);
436 if (env->ExceptionOccurred())
439 jmsg_throw_status(env,rv);
442 jtask_global = (jobject) MSG_task_get_data(*task);
444 /* Convert the global ref into a local ref so that the JVM can free the stuff */
445 jtask_local = env->NewLocalRef(jtask_global);
446 env->DeleteGlobalRef(jtask_global);
447 MSG_task_set_data(*task, NULL);
449 env->ReleaseStringUTFChars(jalias, alias);
453 return (jobject) jtask_local;
457 JNIEXPORT jobject JNICALL
458 Java_org_simgrid_msg_Task_irecv(JNIEnv * env, jclass cls, jstring jmailbox) {
462 //pointer to store the task object pointer.
463 msg_task_t *task = xbt_new(msg_task_t,1);
465 /* There should be a cache here */
466 comm_class = env->FindClass("org/simgrid/msg/Comm");
469 jxbt_throw_native(env,bprintf("fieldID or methodID or class not found."));
473 jobject jcomm = env->NewObject(comm_class, jtask_method_Comm_constructor);
475 jxbt_throw_native(env,bprintf("Can't create a Comm object."));
479 mailbox = env->GetStringUTFChars(jmailbox, 0);
481 comm = MSG_task_irecv(task,mailbox);
483 env->SetLongField(jcomm, jtask_field_Comm_bind, (jlong) (uintptr_t)(comm));
484 env->SetLongField(jcomm, jtask_field_Comm_taskBind, (jlong) (uintptr_t)(task));
485 env->SetBooleanField(jcomm, jtask_field_Comm_receiving, JNI_TRUE);
487 env->ReleaseStringUTFChars(jmailbox, mailbox);
493 JNIEXPORT jobject JNICALL
494 Java_org_simgrid_msg_Task_receiveBounded(JNIEnv * env, jclass cls,
495 jstring jalias, jdouble jtimeout,
496 jobject jhost, jdouble rate)
499 msg_task_t *task = xbt_new(msg_task_t,1);
502 msg_host_t host = NULL;
503 jobject jtask_global, jtask_local;
507 host = jhost_get_native(env, jhost);
510 jxbt_throw_notbound(env, "host", jhost);
515 alias = env->GetStringUTFChars(jalias, 0);
516 rv = MSG_task_receive_ext_bounded(task, alias, (double) jtimeout, host, (double) rate);
517 if (env->ExceptionOccurred())
520 jmsg_throw_status(env,rv);
523 jtask_global = (jobject) MSG_task_get_data(*task);
525 /* Convert the global ref into a local ref so that the JVM can free the stuff */
526 jtask_local = env->NewLocalRef(jtask_global);
527 env->DeleteGlobalRef(jtask_global);
528 MSG_task_set_data(*task, NULL);
530 env->ReleaseStringUTFChars(jalias, alias);
534 return (jobject) jtask_local;
538 JNIEXPORT jobject JNICALL
539 Java_org_simgrid_msg_Task_irecvBounded(JNIEnv * env, jclass cls,
540 jstring jmailbox, jdouble rate) {
544 //pointer to store the task object pointer.
545 msg_task_t *task = xbt_new(msg_task_t,1);
547 /* There should be a cac hee */
548 comm_class = env->FindClass("org/simgrid/msg/Comm");
551 jxbt_throw_native(env,bprintf("fieldID or methodID or class not found."));
555 jobject jcomm = env->NewObject(comm_class, jtask_method_Comm_constructor);
557 jxbt_throw_native(env,bprintf("Can't create a Comm object."));
561 mailbox = env->GetStringUTFChars(jmailbox, 0);
563 comm = MSG_task_irecv_bounded(task,mailbox, (double) rate);
565 env->SetLongField(jcomm, jtask_field_Comm_bind, (jlong) (uintptr_t)(comm));
566 env->SetLongField(jcomm, jtask_field_Comm_taskBind, (jlong) (uintptr_t)(task));
567 env->SetBooleanField(jcomm, jtask_field_Comm_receiving, JNI_TRUE);
569 env->ReleaseStringUTFChars(jmailbox, mailbox);
574 JNIEXPORT jobject JNICALL
575 Java_org_simgrid_msg_Task_isend(JNIEnv *env, jobject jtask, jstring jmailbox) {
585 comm_class = env->FindClass("org/simgrid/msg/Comm");
587 if (!comm_class) return NULL;
589 jcomm = env->NewObject(comm_class, jtask_method_Comm_constructor);
590 mailbox = env->GetStringUTFChars(jmailbox, 0);
592 task = jtask_to_native_task(jtask, env);
595 env->ReleaseStringUTFChars(jmailbox, mailbox);
596 env->DeleteLocalRef(jcomm);
597 jxbt_throw_notbound(env, "task", jtask);
601 MSG_task_set_data(task, (void *) env->NewGlobalRef(jtask));
602 comm = MSG_task_isend(task,mailbox);
604 env->SetLongField(jcomm, jtask_field_Comm_bind, (jlong) (uintptr_t)(comm));
605 env->SetLongField(jcomm, jtask_field_Comm_taskBind, (jlong) (uintptr_t)(NULL));
606 env->SetBooleanField(jcomm, jtask_field_Comm_receiving, JNI_FALSE);
608 env->ReleaseStringUTFChars(jmailbox, mailbox);
613 JNIEXPORT jobject JNICALL
614 Java_org_simgrid_msg_Task_isendBounded(JNIEnv *env, jobject jtask, jstring jmailbox, jdouble maxrate) {
624 comm_class = env->FindClass("org/simgrid/msg/Comm");
626 if (!comm_class) return NULL;
628 jcomm = env->NewObject(comm_class, jtask_method_Comm_constructor);
629 mailbox = env->GetStringUTFChars(jmailbox, 0);
631 task = jtask_to_native_task(jtask, env);
634 env->ReleaseStringUTFChars(jmailbox, mailbox);
635 env->DeleteLocalRef(jcomm);
636 jxbt_throw_notbound(env, "task", jtask);
640 MSG_task_set_data(task, (void *) env->NewGlobalRef(jtask));
641 comm = MSG_task_isend_bounded(task,mailbox,maxrate);
643 env->SetLongField(jcomm, jtask_field_Comm_bind, (jlong) (uintptr_t)(comm));
644 env->SetLongField(jcomm, jtask_field_Comm_taskBind, (jlong) (uintptr_t)(NULL));
645 env->SetBooleanField(jcomm, jtask_field_Comm_receiving, JNI_FALSE);
647 env->ReleaseStringUTFChars(jmailbox, mailbox);
652 JNIEXPORT void JNICALL
653 Java_org_simgrid_msg_Task_nativeFinalize(JNIEnv * env, jobject jtask) {
654 msg_task_t task = jtask_to_native_task(jtask, env);
657 jxbt_throw_notbound(env, "task", jtask);
661 MSG_task_destroy(task);
664 static void msg_task_cancel_on_failed_dsend(void*t) {
665 msg_task_t task = (msg_task_t) t;
666 JNIEnv *env =get_current_thread_env();
667 jobject jtask_global = (jobject) MSG_task_get_data(task);
669 /* Destroy the global ref so that the JVM can free the stuff */
670 env->DeleteGlobalRef(jtask_global);
671 MSG_task_set_data(task, NULL);
672 MSG_task_destroy(task);
675 JNIEXPORT void JNICALL
676 Java_org_simgrid_msg_Task_dsend(JNIEnv * env, jobject jtask,
678 const char *alias = env->GetStringUTFChars(jalias, 0);
680 msg_task_t task = jtask_to_native_task(jtask, env);
684 env->ReleaseStringUTFChars(jalias, alias);
685 jxbt_throw_notbound(env, "task", jtask);
689 /* Pass a global ref to the Jtask into the Ctask so that the receiver can use it */
690 MSG_task_set_data(task, (void *) env->NewGlobalRef(jtask));
691 MSG_task_dsend(task, alias, msg_task_cancel_on_failed_dsend);
693 env->ReleaseStringUTFChars(jalias, alias);
696 JNIEXPORT void JNICALL
697 Java_org_simgrid_msg_Task_dsendBounded(JNIEnv * env, jobject jtask,
698 jstring jalias, jdouble maxrate) {
699 const char *alias = env->GetStringUTFChars(jalias, 0);
701 msg_task_t task = jtask_to_native_task(jtask, env);
705 env->ReleaseStringUTFChars(jalias, alias);
706 jxbt_throw_notbound(env, "task", jtask);
710 /* Pass a global ref to the Jtask into the Ctask so that the receiver can use it */
711 MSG_task_set_data(task, (void *) env->NewGlobalRef(jtask));
712 MSG_task_dsend_bounded(task, alias, msg_task_cancel_on_failed_dsend,(double)maxrate);
714 env->ReleaseStringUTFChars(jalias, alias);
719 JNIEXPORT jboolean JNICALL
720 Java_org_simgrid_msg_Task_listen(JNIEnv * env, jclass cls, jstring jalias)
725 alias = env->GetStringUTFChars(jalias, 0);
726 rv = MSG_task_listen(alias);
727 env->ReleaseStringUTFChars(jalias, alias);
729 return (jboolean) rv;
732 JNIEXPORT jint JNICALL
733 Java_org_simgrid_msg_Task_listenFromHost(JNIEnv * env, jclass cls, jstring jalias, jobject jhost)
738 msg_host_t host = jhost_get_native(env, jhost);
741 jxbt_throw_notbound(env, "host", jhost);
744 alias = env->GetStringUTFChars(jalias, 0);
745 rv = MSG_task_listen_from_host(alias, host);
746 env->ReleaseStringUTFChars(jalias, alias);
752 JNIEXPORT jint JNICALL
753 Java_org_simgrid_msg_Task_listenFrom(JNIEnv * env, jclass cls, jstring jalias)
756 const char *alias = env->GetStringUTFChars(jalias, 0);
757 rv = MSG_task_listen_from(alias);
758 env->ReleaseStringUTFChars(jalias, alias);