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"
18 #include <simgrid/msg.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,
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(env, jname, 0);
95 MSG_task_create(name, (double) jflopsAmount,
96 (double) jbytesAmount, 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 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(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_getFlopsAmount(JNIEnv * env, jobject jtask)
299 msg_task_t ptask = jtask_to_native_task(jtask, env);
302 jxbt_throw_notbound(env, "task", jtask);
305 return (jdouble) MSG_task_get_flops_amount(ptask);
308 JNIEXPORT void JNICALL
309 Java_org_simgrid_msg_Task_setName(JNIEnv *env, jobject jtask, jobject jname) {
310 msg_task_t task = jtask_to_native_task(jtask, env);
313 jxbt_throw_notbound(env, "task", jtask);
316 const char *name = (*env)->GetStringUTFChars(env, jname, 0);
318 (*env)->SetObjectField(env, jtask, jtask_field_Task_name, jname);
319 MSG_task_set_name(task, name);
321 (*env)->ReleaseStringUTFChars(env, jname, name);
323 JNIEXPORT void JNICALL
324 Java_org_simgrid_msg_Task_setPriority(JNIEnv * env,
325 jobject jtask, jdouble priority)
327 msg_task_t task = jtask_to_native_task(jtask, env);
330 jxbt_throw_notbound(env, "task", jtask);
333 MSG_task_set_priority(task, (double) priority);
335 JNIEXPORT void JNICALL
336 Java_org_simgrid_msg_Task_setFlopsAmount
337 (JNIEnv *env, jobject jtask, jdouble computationAmount) {
338 msg_task_t task = jtask_to_native_task(jtask, env);
341 jxbt_throw_notbound(env, "task", jtask);
344 MSG_task_set_flops_amount(task, (double) computationAmount);
346 JNIEXPORT void JNICALL
347 Java_org_simgrid_msg_Task_setBytesAmount
348 (JNIEnv *env, jobject jtask, jdouble dataSize) {
349 msg_task_t task = jtask_to_native_task(jtask, env);
352 jxbt_throw_notbound(env, "task", jtask);
355 (*env)->SetDoubleField(env, jtask, jtask_field_Task_messageSize, dataSize);
356 MSG_task_set_bytes_amount(task, (double) dataSize);
359 JNIEXPORT void JNICALL
360 Java_org_simgrid_msg_Task_send(JNIEnv * env,jobject jtask,
365 const char *alias = (*env)->GetStringUTFChars(env, jalias, 0);
367 msg_task_t task = jtask_to_native_task(jtask, env);
371 (*env)->ReleaseStringUTFChars(env, jalias, alias);
372 jxbt_throw_notbound(env, "task", jtask);
376 /* Pass a global ref to the Jtask into the Ctask so that the receiver can use it */
377 MSG_task_set_data(task, (void *) (*env)->NewGlobalRef(env, jtask));
378 rv = MSG_task_send_with_timeout(task, alias, (double) jtimeout);
379 (*env)->ReleaseStringUTFChars(env, jalias, alias);
382 jmsg_throw_status(env, rv);
386 JNIEXPORT void JNICALL
387 Java_org_simgrid_msg_Task_sendBounded(JNIEnv * env,jobject jtask,
393 const char *alias = (*env)->GetStringUTFChars(env, jalias, 0);
395 msg_task_t task = jtask_to_native_task(jtask, env);
399 (*env)->ReleaseStringUTFChars(env, jalias, alias);
400 jxbt_throw_notbound(env, "task", jtask);
404 /* Pass a global ref to the Jtask into the Ctask so that the receiver can use it */
405 MSG_task_set_data(task, (void *) (*env)->NewGlobalRef(env, jtask));
406 rv = MSG_task_send_with_timeout_bounded(task, alias, (double) jtimeout, (double) maxrate);
407 (*env)->ReleaseStringUTFChars(env, jalias, alias);
410 jmsg_throw_status(env, rv);
414 JNIEXPORT jobject JNICALL
415 Java_org_simgrid_msg_Task_receive(JNIEnv * env, jclass cls,
416 jstring jalias, jdouble jtimeout,
420 msg_task_t *task = xbt_new(msg_task_t,1);
423 msg_host_t host = NULL;
424 jobject jtask_global, jtask_local;
428 host = jhost_get_native(env, jhost);
431 jxbt_throw_notbound(env, "host", jhost);
436 alias = (*env)->GetStringUTFChars(env, jalias, 0);
437 rv = MSG_task_receive_ext(task, alias, (double) jtimeout, host);
438 if ((*env)->ExceptionOccurred(env))
441 jmsg_throw_status(env,rv);
444 jtask_global = MSG_task_get_data(*task);
446 /* Convert the global ref into a local ref so that the JVM can free the stuff */
447 jtask_local = (*env)->NewLocalRef(env, jtask_global);
448 (*env)->DeleteGlobalRef(env, jtask_global);
449 MSG_task_set_data(*task, NULL);
451 (*env)->ReleaseStringUTFChars(env, jalias, alias);
455 return (jobject) jtask_local;
459 JNIEXPORT jobject JNICALL
460 Java_org_simgrid_msg_Task_irecv(JNIEnv * env, jclass cls, jstring jmailbox) {
464 //pointer to store the task object pointer.
465 msg_task_t *task = xbt_new(msg_task_t,1);
467 /* There should be a cache here */
468 comm_class = (*env)->FindClass(env, "org/simgrid/msg/Comm");
471 jxbt_throw_native(env,bprintf("fieldID or methodID or class not found."));
475 jobject jcomm = (*env)->NewObject(env, comm_class, jtask_method_Comm_constructor);
477 jxbt_throw_native(env,bprintf("Can't create a Comm object."));
481 mailbox = (*env)->GetStringUTFChars(env, jmailbox, 0);
483 comm = MSG_task_irecv(task,mailbox);
485 (*env)->SetLongField(env, jcomm, jtask_field_Comm_bind, (jlong) (long)(comm));
486 (*env)->SetLongField(env, jcomm, jtask_field_Comm_taskBind, (jlong) (long)(task));
487 (*env)->SetBooleanField(env, jcomm, jtask_field_Comm_receiving, JNI_TRUE);
489 (*env)->ReleaseStringUTFChars(env, jmailbox, mailbox);
495 JNIEXPORT jobject JNICALL
496 Java_org_simgrid_msg_Task_receiveBounded(JNIEnv * env, jclass cls,
497 jstring jalias, jdouble jtimeout,
498 jobject jhost, jdouble rate)
501 msg_task_t *task = xbt_new(msg_task_t,1);
504 msg_host_t host = NULL;
505 jobject jtask_global, jtask_local;
509 host = jhost_get_native(env, jhost);
512 jxbt_throw_notbound(env, "host", jhost);
517 alias = (*env)->GetStringUTFChars(env, jalias, 0);
518 rv = MSG_task_receive_ext_bounded(task, alias, (double) jtimeout, host, (double) rate);
519 if ((*env)->ExceptionOccurred(env))
522 jmsg_throw_status(env,rv);
525 jtask_global = MSG_task_get_data(*task);
527 /* Convert the global ref into a local ref so that the JVM can free the stuff */
528 jtask_local = (*env)->NewLocalRef(env, jtask_global);
529 (*env)->DeleteGlobalRef(env, jtask_global);
530 MSG_task_set_data(*task, NULL);
532 (*env)->ReleaseStringUTFChars(env, jalias, alias);
536 return (jobject) jtask_local;
540 JNIEXPORT jobject JNICALL
541 Java_org_simgrid_msg_Task_irecvBounded(JNIEnv * env, jclass cls,
542 jstring jmailbox, jdouble rate) {
546 //pointer to store the task object pointer.
547 msg_task_t *task = xbt_new(msg_task_t,1);
549 /* There should be a cache here */
550 comm_class = (*env)->FindClass(env, "org/simgrid/msg/Comm");
553 jxbt_throw_native(env,bprintf("fieldID or methodID or class not found."));
557 jobject jcomm = (*env)->NewObject(env, comm_class, jtask_method_Comm_constructor);
559 jxbt_throw_native(env,bprintf("Can't create a Comm object."));
563 mailbox = (*env)->GetStringUTFChars(env, jmailbox, 0);
565 comm = MSG_task_irecv_bounded(task,mailbox, (double) rate);
567 (*env)->SetLongField(env, jcomm, jtask_field_Comm_bind, (jlong) (long)(comm));
568 (*env)->SetLongField(env, jcomm, jtask_field_Comm_taskBind, (jlong) (long)(task));
569 (*env)->SetBooleanField(env, jcomm, jtask_field_Comm_receiving, JNI_TRUE);
571 (*env)->ReleaseStringUTFChars(env, jmailbox, mailbox);
576 JNIEXPORT jobject JNICALL
577 Java_org_simgrid_msg_Task_isend(JNIEnv *env, jobject jtask, jstring jmailbox) {
587 comm_class = (*env)->FindClass(env, "org/simgrid/msg/Comm");
589 if (!comm_class) return NULL;
591 jcomm = (*env)->NewObject(env, comm_class, jtask_method_Comm_constructor);
592 mailbox = (*env)->GetStringUTFChars(env, jmailbox, 0);
594 task = jtask_to_native_task(jtask, env);
597 (*env)->ReleaseStringUTFChars(env, jmailbox, mailbox);
598 (*env)->DeleteLocalRef(env, jcomm);
599 jxbt_throw_notbound(env, "task", jtask);
603 MSG_task_set_data(task, (void *) (*env)->NewGlobalRef(env, jtask));
604 comm = MSG_task_isend(task,mailbox);
606 (*env)->SetLongField(env, jcomm, jtask_field_Comm_bind, (jlong) (long)(comm));
607 (*env)->SetLongField(env, jcomm, jtask_field_Comm_taskBind, (jlong) (long)(NULL));
608 (*env)->SetBooleanField(env, jcomm, jtask_field_Comm_receiving, JNI_FALSE);
610 (*env)->ReleaseStringUTFChars(env, jmailbox, mailbox);
615 JNIEXPORT jobject JNICALL
616 Java_org_simgrid_msg_Task_isendBounded(JNIEnv *env, jobject jtask, jstring jmailbox, jdouble maxrate) {
626 comm_class = (*env)->FindClass(env, "org/simgrid/msg/Comm");
628 if (!comm_class) return NULL;
630 jcomm = (*env)->NewObject(env, comm_class, jtask_method_Comm_constructor);
631 mailbox = (*env)->GetStringUTFChars(env, jmailbox, 0);
633 task = jtask_to_native_task(jtask, env);
636 (*env)->ReleaseStringUTFChars(env, jmailbox, mailbox);
637 (*env)->DeleteLocalRef(env, jcomm);
638 jxbt_throw_notbound(env, "task", jtask);
642 MSG_task_set_data(task, (void *) (*env)->NewGlobalRef(env, jtask));
643 comm = MSG_task_isend_bounded(task,mailbox,maxrate);
645 (*env)->SetLongField(env, jcomm, jtask_field_Comm_bind, (jlong) (long)(comm));
646 (*env)->SetLongField(env, jcomm, jtask_field_Comm_taskBind, (jlong) (long)(NULL));
647 (*env)->SetBooleanField(env, jcomm, jtask_field_Comm_receiving, JNI_FALSE);
649 (*env)->ReleaseStringUTFChars(env, jmailbox, mailbox);
654 JNIEXPORT void JNICALL
655 Java_org_simgrid_msg_Task_nativeFinalize(JNIEnv * env, jobject jtask) {
656 msg_task_t task = jtask_to_native_task(jtask, env);
659 jxbt_throw_notbound(env, "task", jtask);
663 MSG_task_destroy(task);
666 static void msg_task_cancel_on_failed_dsend(void*t) {
668 JNIEnv *env =get_current_thread_env();
669 jobject jtask_global = MSG_task_get_data(task);
671 /* Destroy the global ref so that the JVM can free the stuff */
672 (*env)->DeleteGlobalRef(env, jtask_global);
673 MSG_task_set_data(task, NULL);
674 MSG_task_destroy(task);
677 JNIEXPORT void JNICALL
678 Java_org_simgrid_msg_Task_dsend(JNIEnv * env, jobject jtask,
680 const char *alias = (*env)->GetStringUTFChars(env, jalias, 0);
682 msg_task_t task = jtask_to_native_task(jtask, env);
686 (*env)->ReleaseStringUTFChars(env, jalias, alias);
687 jxbt_throw_notbound(env, "task", jtask);
691 /* Pass a global ref to the Jtask into the Ctask so that the receiver can use it */
692 MSG_task_set_data(task, (void *) (*env)->NewGlobalRef(env, jtask));
693 MSG_task_dsend(task, alias, msg_task_cancel_on_failed_dsend);
695 (*env)->ReleaseStringUTFChars(env, jalias, alias);
698 JNIEXPORT void JNICALL
699 Java_org_simgrid_msg_Task_dsendBounded(JNIEnv * env, jobject jtask,
700 jstring jalias, jdouble maxrate) {
701 const char *alias = (*env)->GetStringUTFChars(env, jalias, 0);
703 msg_task_t task = jtask_to_native_task(jtask, env);
707 (*env)->ReleaseStringUTFChars(env, jalias, alias);
708 jxbt_throw_notbound(env, "task", jtask);
712 /* Pass a global ref to the Jtask into the Ctask so that the receiver can use it */
713 MSG_task_set_data(task, (void *) (*env)->NewGlobalRef(env, jtask));
714 MSG_task_dsend_bounded(task, alias, msg_task_cancel_on_failed_dsend,(double)maxrate);
716 (*env)->ReleaseStringUTFChars(env, jalias, alias);
721 JNIEXPORT jboolean JNICALL
722 Java_org_simgrid_msg_Task_listen(JNIEnv * env, jclass cls, jstring jalias)
727 alias = (*env)->GetStringUTFChars(env, jalias, 0);
728 rv = MSG_task_listen(alias);
729 (*env)->ReleaseStringUTFChars(env, jalias, alias);
731 return (jboolean) rv;
734 JNIEXPORT jint JNICALL
735 Java_org_simgrid_msg_Task_listenFromHost(JNIEnv * env, jclass cls, jstring jalias, jobject jhost)
740 msg_host_t host = jhost_get_native(env, jhost);
743 jxbt_throw_notbound(env, "host", jhost);
746 alias = (*env)->GetStringUTFChars(env, jalias, 0);
747 rv = MSG_task_listen_from_host(alias, host);
748 (*env)->ReleaseStringUTFChars(env, jalias, alias);
754 JNIEXPORT jint JNICALL
755 Java_org_simgrid_msg_Task_listenFrom(JNIEnv * env, jclass cls, jstring jalias)
758 const char *alias = (*env)->GetStringUTFChars(env, jalias, 0);
759 rv = MSG_task_listen_from(alias);
760 (*env)->ReleaseStringUTFChars(env, jalias, alias);