1 /* Functions related to the java task instances. */
3 /* Copyright (c) 2007, 2009-2010, 2013-2014. 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 "smx_context_java.h"
13 #include "jmsg_host.h"
14 #include "jmsg_task.h"
16 #include "jxbt_utilities.h"
20 XBT_LOG_EXTERNAL_DEFAULT_CATEGORY(jmsg);
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(env, 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(env, jtask, jtask_field_Task_bind);
41 jboolean jtask_is_valid(jobject jtask, JNIEnv * env)
43 return (*env)->GetLongField(env, 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(env, "org/simgrid/msg/Comm");
49 jclass jtask_class_Task = (*env)->FindClass(env, "org/simgrid/msg/Task");
51 jtask_method_Comm_constructor = (*env)->GetMethodID(env, 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,
67 jdouble jcomputeDuration,
70 msg_task_t task; /* the native task to create */
71 const char *name = NULL; /* the name of the task */
73 if (jcomputeDuration < 0) {
74 jxbt_throw_illegal(env,
76 ("Task ComputeDuration (%f) cannot be negative",
77 (double) jcomputeDuration));
81 if (jmessageSize < 0) {
82 jxbt_throw_illegal(env,
83 bprintf("Task MessageSize (%f) cannot be negative",
84 (double) jmessageSize));
89 /* get the C string from the java string */
90 name = (*env)->GetStringUTFChars(env, jname, 0);
95 MSG_task_create(name, (double) jcomputeDuration,
96 (double) jmessageSize, NULL);
98 (*env)->ReleaseStringUTFChars(env, jname, name);
99 /* sets the task name */
100 (*env)->SetObjectField(env, 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 compute durations cannot be null"));
135 if (!jmessageSizes_arg) {
138 ("Parallel task message sizes cannot be null"));
143 jxbt_throw_null(env, xbt_strdup("Parallel task name cannot be null"));
147 host_count = (int) (*env)->GetArrayLength(env, 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(env, jcomputeDurations_arg, 0);
157 (*env)->GetDoubleArrayElements(env, jmessageSizes_arg, 0);
159 for (index = 0; index < host_count; index++) {
160 jhost = (*env)->GetObjectArrayElement(env, 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(env, jcomputeDurations_arg,
169 jcomputeDurations, 0);
170 (*env)->ReleaseDoubleArrayElements(env, jmessageSizes_arg, jmessageSizes,
174 /* get the C string from the java string */
175 name = (*env)->GetStringUTFChars(env, jname, 0);
178 MSG_parallel_task_create(name, host_count, hosts, computeDurations,
181 (*env)->ReleaseStringUTFChars(env, jname, name);
182 /* sets the task name */
183 (*env)->SetObjectField(env, jtask, jtask_field_Task_name, jname);
184 /* associate the java task object and the native task */
185 jtask_bind(jtask, task, env);
187 MSG_task_set_data(task, (void *) jtask);
189 if (!MSG_task_get_data(task))
190 jxbt_throw_jni(env, "global ref allocation failed");
193 JNIEXPORT void JNICALL
194 Java_org_simgrid_msg_Task_cancel(JNIEnv * env,
197 msg_task_t ptask = jtask_to_native_task(jtask, env);
200 jxbt_throw_notbound(env, "task", jtask);
204 msg_error_t rv = MSG_task_cancel(ptask);
206 jxbt_check_res("MSG_task_cancel()", rv, MSG_OK,
207 bprintf("unexpected error , please report this bug"));
210 JNIEXPORT void JNICALL
211 Java_org_simgrid_msg_Task_execute(JNIEnv * env, jobject jtask)
213 msg_task_t task = jtask_to_native_task(jtask, env);
216 jxbt_throw_notbound(env, "task", jtask);
220 rv = MSG_task_execute(task);
221 if ((*env)->ExceptionOccurred(env))
224 jmsg_throw_status(env, rv);
228 JNIEXPORT void JNICALL
229 Java_org_simgrid_msg_Task_setBound(JNIEnv * env, jobject jtask, jdouble load)
231 msg_task_t task = jtask_to_native_task(jtask, env);
234 jxbt_throw_notbound(env, "task", jtask);
237 MSG_task_set_bound(task, load);
240 JNIEXPORT jstring JNICALL
241 Java_org_simgrid_msg_Task_getName(JNIEnv * env,
243 msg_task_t task = jtask_to_native_task(jtask, env);
246 jxbt_throw_notbound(env, "task", jtask);
250 return (*env)->NewStringUTF(env, MSG_task_get_name(task));
253 JNIEXPORT jobject JNICALL
254 Java_org_simgrid_msg_Task_getSender(JNIEnv * env,
256 msg_process_t process;
258 msg_task_t task = jtask_to_native_task(jtask, env);
261 jxbt_throw_notbound(env, "task", jtask);
265 process = MSG_task_get_sender(task);
266 if (process == NULL) {
269 return (jobject) native_to_java_process(process);
272 JNIEXPORT jobject JNICALL
273 Java_org_simgrid_msg_Task_getSource(JNIEnv * env,
277 msg_task_t task = jtask_to_native_task(jtask, env);
280 jxbt_throw_notbound(env, "task", jtask);
284 host = MSG_task_get_source(task);
288 if (!xbt_lib_get_level(host, JAVA_HOST_LEVEL)) {
289 jxbt_throw_jni(env, "MSG_task_get_source() failed");
293 return (jobject) xbt_lib_get_level(host, JAVA_HOST_LEVEL);
296 JNIEXPORT jdouble JNICALL
297 Java_org_simgrid_msg_Task_getComputeDuration(JNIEnv * env,
300 msg_task_t ptask = jtask_to_native_task(jtask, env);
303 jxbt_throw_notbound(env, "task", jtask);
306 return (jdouble) MSG_task_get_compute_duration(ptask);
309 JNIEXPORT jdouble JNICALL
310 Java_org_simgrid_msg_Task_getRemainingDuration(JNIEnv * env, jobject jtask)
312 msg_task_t ptask = jtask_to_native_task(jtask, env);
315 jxbt_throw_notbound(env, "task", jtask);
318 return (jdouble) MSG_task_get_remaining_computation(ptask);
320 JNIEXPORT void JNICALL
321 Java_org_simgrid_msg_Task_setName(JNIEnv *env, jobject jtask, jobject jname) {
322 msg_task_t task = jtask_to_native_task(jtask, env);
325 jxbt_throw_notbound(env, "task", jtask);
328 const char *name = (*env)->GetStringUTFChars(env, jname, 0);
330 (*env)->SetObjectField(env, jtask, jtask_field_Task_name, jname);
331 MSG_task_set_name(task, name);
333 (*env)->ReleaseStringUTFChars(env, jname, name);
335 JNIEXPORT void JNICALL
336 Java_org_simgrid_msg_Task_setPriority(JNIEnv * env,
337 jobject jtask, jdouble priority)
339 msg_task_t task = jtask_to_native_task(jtask, env);
342 jxbt_throw_notbound(env, "task", jtask);
345 MSG_task_set_priority(task, (double) priority);
347 JNIEXPORT void JNICALL
348 Java_org_simgrid_msg_Task_setComputeDuration
349 (JNIEnv *env, jobject jtask, jdouble computationAmount) {
350 msg_task_t task = jtask_to_native_task(jtask, env);
353 jxbt_throw_notbound(env, "task", jtask);
356 MSG_task_set_compute_duration(task, (double) computationAmount);
358 JNIEXPORT void JNICALL
359 Java_org_simgrid_msg_Task_setDataSize
360 (JNIEnv *env, jobject jtask, jdouble dataSize) {
361 msg_task_t task = jtask_to_native_task(jtask, env);
364 jxbt_throw_notbound(env, "task", jtask);
367 (*env)->SetDoubleField(env, jtask, jtask_field_Task_messageSize, dataSize);
368 MSG_task_set_data_size(task, (double) dataSize);
371 JNIEXPORT void JNICALL
372 Java_org_simgrid_msg_Task_send(JNIEnv * env,jobject jtask,
377 const char *alias = (*env)->GetStringUTFChars(env, jalias, 0);
379 msg_task_t task = jtask_to_native_task(jtask, env);
383 (*env)->ReleaseStringUTFChars(env, jalias, alias);
384 jxbt_throw_notbound(env, "task", jtask);
388 /* Pass a global ref to the Jtask into the Ctask so that the receiver can use it */
389 MSG_task_set_data(task, (void *) (*env)->NewGlobalRef(env, jtask));
390 rv = MSG_task_send_with_timeout(task, alias, (double) jtimeout);
391 (*env)->ReleaseStringUTFChars(env, jalias, alias);
394 jmsg_throw_status(env, rv);
398 JNIEXPORT void JNICALL
399 Java_org_simgrid_msg_Task_sendBounded(JNIEnv * env,jobject jtask,
405 const char *alias = (*env)->GetStringUTFChars(env, jalias, 0);
407 msg_task_t task = jtask_to_native_task(jtask, env);
411 (*env)->ReleaseStringUTFChars(env, jalias, alias);
412 jxbt_throw_notbound(env, "task", jtask);
416 /* Pass a global ref to the Jtask into the Ctask so that the receiver can use it */
417 MSG_task_set_data(task, (void *) (*env)->NewGlobalRef(env, jtask));
418 rv = MSG_task_send_with_timeout_bounded(task, alias, (double) jtimeout, (double) maxrate);
419 (*env)->ReleaseStringUTFChars(env, jalias, alias);
422 jmsg_throw_status(env, rv);
426 JNIEXPORT jobject JNICALL
427 Java_org_simgrid_msg_Task_receive(JNIEnv * env, jclass cls,
428 jstring jalias, jdouble jtimeout,
432 msg_task_t *task = xbt_new(msg_task_t,1);
435 msg_host_t host = NULL;
436 jobject jtask_global, jtask_local;
440 host = jhost_get_native(env, jhost);
443 jxbt_throw_notbound(env, "host", jhost);
448 alias = (*env)->GetStringUTFChars(env, jalias, 0);
449 rv = MSG_task_receive_ext(task, alias, (double) jtimeout, host);
450 if ((*env)->ExceptionOccurred(env))
453 jmsg_throw_status(env,rv);
456 jtask_global = MSG_task_get_data(*task);
458 /* Convert the global ref into a local ref so that the JVM can free the stuff */
459 jtask_local = (*env)->NewLocalRef(env, jtask_global);
460 (*env)->DeleteGlobalRef(env, jtask_global);
461 MSG_task_set_data(*task, NULL);
463 (*env)->ReleaseStringUTFChars(env, jalias, alias);
467 return (jobject) jtask_local;
471 JNIEXPORT jobject JNICALL
472 Java_org_simgrid_msg_Task_irecv(JNIEnv * env, jclass cls, jstring jmailbox) {
476 //pointer to store the task object pointer.
477 msg_task_t *task = xbt_new(msg_task_t,1);
479 /* There should be a cache here */
480 comm_class = (*env)->FindClass(env, "org/simgrid/msg/Comm");
483 jxbt_throw_native(env,bprintf("fieldID or methodID or class not found."));
487 jobject jcomm = (*env)->NewObject(env, comm_class, jtask_method_Comm_constructor);
489 jxbt_throw_native(env,bprintf("Can't create a Comm object."));
493 mailbox = (*env)->GetStringUTFChars(env, jmailbox, 0);
495 comm = MSG_task_irecv(task,mailbox);
497 (*env)->SetLongField(env, jcomm, jtask_field_Comm_bind, (jlong) (long)(comm));
498 (*env)->SetLongField(env, jcomm, jtask_field_Comm_taskBind, (jlong) (long)(task));
499 (*env)->SetBooleanField(env, jcomm, jtask_field_Comm_receiving, JNI_TRUE);
501 (*env)->ReleaseStringUTFChars(env, jmailbox, mailbox);
507 JNIEXPORT jobject JNICALL
508 Java_org_simgrid_msg_Task_receiveBounded(JNIEnv * env, jclass cls,
509 jstring jalias, jdouble jtimeout,
510 jobject jhost, jdouble rate)
513 msg_task_t *task = xbt_new(msg_task_t,1);
516 msg_host_t host = NULL;
517 jobject jtask_global, jtask_local;
521 host = jhost_get_native(env, jhost);
524 jxbt_throw_notbound(env, "host", jhost);
529 alias = (*env)->GetStringUTFChars(env, jalias, 0);
530 rv = MSG_task_receive_ext_bounded(task, alias, (double) jtimeout, host, (double) rate);
531 if ((*env)->ExceptionOccurred(env))
534 jmsg_throw_status(env,rv);
537 jtask_global = MSG_task_get_data(*task);
539 /* Convert the global ref into a local ref so that the JVM can free the stuff */
540 jtask_local = (*env)->NewLocalRef(env, jtask_global);
541 (*env)->DeleteGlobalRef(env, jtask_global);
542 MSG_task_set_data(*task, NULL);
544 (*env)->ReleaseStringUTFChars(env, jalias, alias);
548 return (jobject) jtask_local;
552 JNIEXPORT jobject JNICALL
553 Java_org_simgrid_msg_Task_irecvBounded(JNIEnv * env, jclass cls,
554 jstring jmailbox, jdouble rate) {
558 //pointer to store the task object pointer.
559 msg_task_t *task = xbt_new(msg_task_t,1);
561 /* There should be a cache here */
562 comm_class = (*env)->FindClass(env, "org/simgrid/msg/Comm");
565 jxbt_throw_native(env,bprintf("fieldID or methodID or class not found."));
569 jobject jcomm = (*env)->NewObject(env, comm_class, jtask_method_Comm_constructor);
571 jxbt_throw_native(env,bprintf("Can't create a Comm object."));
575 mailbox = (*env)->GetStringUTFChars(env, jmailbox, 0);
577 comm = MSG_task_irecv_bounded(task,mailbox, (double) rate);
579 (*env)->SetLongField(env, jcomm, jtask_field_Comm_bind, (jlong) (long)(comm));
580 (*env)->SetLongField(env, jcomm, jtask_field_Comm_taskBind, (jlong) (long)(task));
581 (*env)->SetBooleanField(env, jcomm, jtask_field_Comm_receiving, JNI_TRUE);
583 (*env)->ReleaseStringUTFChars(env, jmailbox, mailbox);
588 JNIEXPORT jobject JNICALL
589 Java_org_simgrid_msg_Task_isend(JNIEnv *env, jobject jtask, jstring jmailbox) {
599 comm_class = (*env)->FindClass(env, "org/simgrid/msg/Comm");
601 if (!comm_class) return NULL;
603 jcomm = (*env)->NewObject(env, comm_class, jtask_method_Comm_constructor);
604 mailbox = (*env)->GetStringUTFChars(env, jmailbox, 0);
606 task = jtask_to_native_task(jtask, env);
609 (*env)->ReleaseStringUTFChars(env, jmailbox, mailbox);
610 (*env)->DeleteLocalRef(env, jcomm);
611 jxbt_throw_notbound(env, "task", jtask);
615 MSG_task_set_data(task, (void *) (*env)->NewGlobalRef(env, jtask));
616 comm = MSG_task_isend(task,mailbox);
618 (*env)->SetLongField(env, jcomm, jtask_field_Comm_bind, (jlong) (long)(comm));
619 (*env)->SetLongField(env, jcomm, jtask_field_Comm_taskBind, (jlong) (long)(NULL));
620 (*env)->SetBooleanField(env, jcomm, jtask_field_Comm_receiving, JNI_FALSE);
622 (*env)->ReleaseStringUTFChars(env, jmailbox, mailbox);
627 JNIEXPORT jobject JNICALL
628 Java_org_simgrid_msg_Task_isendBounded(JNIEnv *env, jobject jtask, jstring jmailbox, jdouble maxrate) {
638 comm_class = (*env)->FindClass(env, "org/simgrid/msg/Comm");
640 if (!comm_class) return NULL;
642 jcomm = (*env)->NewObject(env, comm_class, jtask_method_Comm_constructor);
643 mailbox = (*env)->GetStringUTFChars(env, jmailbox, 0);
645 task = jtask_to_native_task(jtask, env);
648 (*env)->ReleaseStringUTFChars(env, jmailbox, mailbox);
649 (*env)->DeleteLocalRef(env, jcomm);
650 jxbt_throw_notbound(env, "task", jtask);
654 MSG_task_set_data(task, (void *) (*env)->NewGlobalRef(env, jtask));
655 comm = MSG_task_isend_bounded(task,mailbox,maxrate);
657 (*env)->SetLongField(env, jcomm, jtask_field_Comm_bind, (jlong) (long)(comm));
658 (*env)->SetLongField(env, jcomm, jtask_field_Comm_taskBind, (jlong) (long)(NULL));
659 (*env)->SetBooleanField(env, jcomm, jtask_field_Comm_receiving, JNI_FALSE);
661 (*env)->ReleaseStringUTFChars(env, jmailbox, mailbox);
668 static void msg_task_cancel_on_failed_dsend(void*t) {
670 JNIEnv *env =get_current_thread_env();
671 jobject jtask_global = MSG_task_get_data(task);
673 /* Destroy the global ref so that the JVM can free the stuff */
674 (*env)->DeleteGlobalRef(env, jtask_global);
675 MSG_task_set_data(task, NULL);
676 MSG_task_destroy(task);
679 JNIEXPORT void JNICALL
680 Java_org_simgrid_msg_Task_dsend(JNIEnv * env, jobject jtask,
682 const char *alias = (*env)->GetStringUTFChars(env, jalias, 0);
684 msg_task_t task = jtask_to_native_task(jtask, env);
688 (*env)->ReleaseStringUTFChars(env, jalias, alias);
689 jxbt_throw_notbound(env, "task", jtask);
693 /* Pass a global ref to the Jtask into the Ctask so that the receiver can use it */
694 MSG_task_set_data(task, (void *) (*env)->NewGlobalRef(env, jtask));
695 MSG_task_dsend(task, alias, msg_task_cancel_on_failed_dsend);
697 (*env)->ReleaseStringUTFChars(env, jalias, alias);
700 JNIEXPORT void JNICALL
701 Java_org_simgrid_msg_Task_dsendBounded(JNIEnv * env, jobject jtask,
702 jstring jalias, jdouble maxrate) {
703 const char *alias = (*env)->GetStringUTFChars(env, jalias, 0);
705 msg_task_t task = jtask_to_native_task(jtask, env);
709 (*env)->ReleaseStringUTFChars(env, jalias, alias);
710 jxbt_throw_notbound(env, "task", jtask);
714 /* Pass a global ref to the Jtask into the Ctask so that the receiver can use it */
715 MSG_task_set_data(task, (void *) (*env)->NewGlobalRef(env, jtask));
716 MSG_task_dsend_bounded(task, alias, msg_task_cancel_on_failed_dsend,(double)maxrate);
718 (*env)->ReleaseStringUTFChars(env, jalias, alias);
723 JNIEXPORT jboolean JNICALL
724 Java_org_simgrid_msg_Task_listen(JNIEnv * env, jclass cls, jstring jalias)
729 alias = (*env)->GetStringUTFChars(env, jalias, 0);
730 rv = MSG_task_listen(alias);
731 (*env)->ReleaseStringUTFChars(env, jalias, alias);
733 return (jboolean) rv;
736 JNIEXPORT jint JNICALL
737 Java_org_simgrid_msg_Task_listenFromHost(JNIEnv * env, jclass cls, jstring jalias, jobject jhost)
742 msg_host_t host = jhost_get_native(env, jhost);
745 jxbt_throw_notbound(env, "host", jhost);
748 alias = (*env)->GetStringUTFChars(env, jalias, 0);
749 rv = MSG_task_listen_from_host(alias, host);
750 (*env)->ReleaseStringUTFChars(env, jalias, alias);
756 JNIEXPORT jint JNICALL
757 Java_org_simgrid_msg_Task_listenFrom(JNIEnv * env, jclass cls, jstring jalias)
760 const char *alias = (*env)->GetStringUTFChars(env, jalias, 0);
761 rv = MSG_task_listen_from(alias);
762 (*env)->ReleaseStringUTFChars(env, jalias, alias);