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"
13 #include "jmsg_process.h"
15 #include "jxbt_utilities.h"
17 #include <simgrid/msg.h>
19 XBT_LOG_EXTERNAL_DEFAULT_CATEGORY(jmsg);
21 static jmethodID jtask_method_Comm_constructor;
23 static jfieldID jtask_field_Task_bind;
24 static jfieldID jtask_field_Task_name;
25 static jfieldID jtask_field_Task_messageSize;
26 static jfieldID jtask_field_Comm_bind;
27 static jfieldID jtask_field_Comm_taskBind;
28 static jfieldID jtask_field_Comm_receiving;
30 void jtask_bind(jobject jtask, msg_task_t task, JNIEnv * env)
32 env->SetLongField(jtask, jtask_field_Task_bind, (intptr_t)task);
35 msg_task_t jtask_to_native_task(jobject jtask, JNIEnv * env)
37 return (msg_task_t)(intptr_t)env->GetLongField(jtask, jtask_field_Task_bind);
40 jboolean jtask_is_valid(jobject jtask, JNIEnv * env)
42 return env->GetLongField(jtask, jtask_field_Task_bind) ? JNI_TRUE : JNI_FALSE;
45 JNIEXPORT void JNICALL
46 Java_org_simgrid_msg_Task_nativeInit(JNIEnv *env, jclass cls) {
47 jclass jtask_class_Comm = env->FindClass("org/simgrid/msg/Comm");
48 jclass jtask_class_Task = env->FindClass("org/simgrid/msg/Task");
50 jtask_method_Comm_constructor = env->GetMethodID(jtask_class_Comm, "<init>", "()V");
51 jtask_field_Task_bind = jxbt_get_jfield(env, jtask_class_Task, "bind", "J");
52 jtask_field_Task_name = jxbt_get_jfield(env, jtask_class_Task, "name", "Ljava/lang/String;");
53 jtask_field_Task_messageSize = jxbt_get_jfield(env, jtask_class_Task, "messageSize", "D");
54 jtask_field_Comm_bind = jxbt_get_jfield(env, jtask_class_Comm, "bind", "J");
55 jtask_field_Comm_taskBind = jxbt_get_jfield(env, jtask_class_Comm, "taskBind", "J");
56 jtask_field_Comm_receiving = jxbt_get_jfield(env, jtask_class_Comm, "receiving", "Z");
57 if (!jtask_field_Task_bind || !jtask_class_Task || !jtask_field_Comm_bind || !jtask_field_Comm_taskBind ||
58 !jtask_field_Comm_receiving || !jtask_method_Comm_constructor) {
59 jxbt_throw_native(env,bprintf("Can't find some fields in Java class."));
63 JNIEXPORT void JNICALL
64 Java_org_simgrid_msg_Task_create(JNIEnv * env,
65 jobject jtask, jstring jname,
69 msg_task_t task; /* the native task to create */
70 const char *name = NULL; /* the name of the task */
72 if (jflopsAmount < 0) {
73 jxbt_throw_illegal(env,
75 ("Task flopsAmount (%f) cannot be negative",
76 (double) jflopsAmount));
80 if (jbytesAmount < 0) {
81 jxbt_throw_illegal(env,
82 bprintf("Task bytesAmount (%f) cannot be negative",
83 (double) jbytesAmount));
88 /* get the C string from the java string */
89 name = env->GetStringUTFChars(jname, 0);
94 MSG_task_create(name, (double) jflopsAmount,
95 (double) jbytesAmount, NULL);
97 env->ReleaseStringUTFChars(jname, name);
98 /* sets the task name */
99 env->SetObjectField(jtask, jtask_field_Task_name, jname);
100 /* bind & store the task */
101 jtask_bind(jtask, task, env);
102 MSG_task_set_data(task, jtask);
105 JNIEXPORT void JNICALL
106 Java_org_simgrid_msg_Task_parallelCreate(JNIEnv * env,
111 jcomputeDurations_arg,
115 msg_task_t task; /* the native parallel task to create */
116 const char *name; /* the name of the task */
119 double *computeDurations;
120 double *messageSizes;
121 jdouble *jcomputeDurations;
122 jdouble *jmessageSizes;
127 if (!jcomputeDurations_arg) {
130 ("Parallel task flops amounts cannot be null"));
134 if (!jmessageSizes_arg) {
137 ("Parallel task bytes amounts cannot be null"));
142 jxbt_throw_null(env, xbt_strdup("Parallel task name cannot be null"));
146 host_count = (int) env->GetArrayLength(jhosts);
149 hosts = xbt_new0(msg_host_t, host_count);
150 computeDurations = xbt_new0(double, host_count);
151 messageSizes = xbt_new0(double, host_count * host_count);
154 env->GetDoubleArrayElements(jcomputeDurations_arg, 0);
156 env->GetDoubleArrayElements(jmessageSizes_arg, 0);
158 for (index = 0; index < host_count; index++) {
159 jhost = env->GetObjectArrayElement(jhosts, index);
160 hosts[index] = jhost_get_native(env, jhost);
161 computeDurations[index] = jcomputeDurations[index];
163 for (index = 0; index < host_count * host_count; index++) {
164 messageSizes[index] = jmessageSizes[index];
167 env->ReleaseDoubleArrayElements(jcomputeDurations_arg,
168 jcomputeDurations, 0);
169 env->ReleaseDoubleArrayElements(jmessageSizes_arg, jmessageSizes, 0);
171 /* get the C string from the java string */
172 name = env->GetStringUTFChars(jname, 0);
175 MSG_parallel_task_create(name, host_count, hosts, computeDurations,
178 env->ReleaseStringUTFChars(jname, name);
179 /* sets the task name */
180 env->SetObjectField(jtask, jtask_field_Task_name, jname);
181 /* associate the java task object and the native task */
182 jtask_bind(jtask, task, env);
184 MSG_task_set_data(task, (void *) jtask);
186 if (!MSG_task_get_data(task))
187 jxbt_throw_jni(env, "global ref allocation failed");
190 JNIEXPORT void JNICALL
191 Java_org_simgrid_msg_Task_cancel(JNIEnv * env,
194 msg_task_t ptask = jtask_to_native_task(jtask, env);
197 jxbt_throw_notbound(env, "task", jtask);
201 msg_error_t rv = MSG_task_cancel(ptask);
203 jxbt_check_res("MSG_task_cancel()", rv, MSG_OK,
204 bprintf("unexpected error , please report this bug"));
207 JNIEXPORT void JNICALL
208 Java_org_simgrid_msg_Task_execute(JNIEnv * env, jobject jtask)
210 msg_task_t task = jtask_to_native_task(jtask, env);
213 jxbt_throw_notbound(env, "task", jtask);
217 rv = MSG_task_execute(task);
218 if (env->ExceptionOccurred())
221 jmsg_throw_status(env, rv);
225 JNIEXPORT void JNICALL
226 Java_org_simgrid_msg_Task_setBound(JNIEnv * env, jobject jtask, jdouble load)
228 msg_task_t task = jtask_to_native_task(jtask, env);
231 jxbt_throw_notbound(env, "task", jtask);
234 MSG_task_set_bound(task, load);
237 JNIEXPORT jstring JNICALL
238 Java_org_simgrid_msg_Task_getName(JNIEnv * env,
240 msg_task_t task = jtask_to_native_task(jtask, env);
243 jxbt_throw_notbound(env, "task", jtask);
247 return env->NewStringUTF(MSG_task_get_name(task));
250 JNIEXPORT jobject JNICALL
251 Java_org_simgrid_msg_Task_getSender(JNIEnv * env,
253 msg_process_t process;
255 msg_task_t task = jtask_to_native_task(jtask, env);
258 jxbt_throw_notbound(env, "task", jtask);
262 process = MSG_task_get_sender(task);
263 if (process == NULL) {
266 return (jobject) native_to_java_process(process);
269 JNIEXPORT jobject JNICALL
270 Java_org_simgrid_msg_Task_getSource(JNIEnv * env,
274 msg_task_t task = jtask_to_native_task(jtask, env);
277 jxbt_throw_notbound(env, "task", jtask);
281 host = MSG_task_get_source(task);
285 if (!host->extension(JAVA_HOST_LEVEL)) {
286 jxbt_throw_jni(env, "MSG_task_get_source() failed");
290 return (jobject) host->extension(JAVA_HOST_LEVEL);
293 JNIEXPORT jdouble JNICALL
294 Java_org_simgrid_msg_Task_getFlopsAmount(JNIEnv * env, jobject jtask)
296 msg_task_t ptask = jtask_to_native_task(jtask, env);
299 jxbt_throw_notbound(env, "task", jtask);
302 return (jdouble) MSG_task_get_flops_amount(ptask);
305 JNIEXPORT void JNICALL
306 Java_org_simgrid_msg_Task_setName(JNIEnv *env, jobject jtask, jobject jname) {
307 msg_task_t task = jtask_to_native_task(jtask, env);
310 jxbt_throw_notbound(env, "task", jtask);
313 const char *name = env->GetStringUTFChars((jstring) jname, 0);
315 env->SetObjectField(jtask, jtask_field_Task_name, jname);
316 MSG_task_set_name(task, name);
318 env->ReleaseStringUTFChars((jstring) jname, name);
320 JNIEXPORT void JNICALL
321 Java_org_simgrid_msg_Task_setPriority(JNIEnv * env,
322 jobject jtask, jdouble priority)
324 msg_task_t task = jtask_to_native_task(jtask, env);
327 jxbt_throw_notbound(env, "task", jtask);
330 MSG_task_set_priority(task, (double) priority);
332 JNIEXPORT void JNICALL
333 Java_org_simgrid_msg_Task_setFlopsAmount
334 (JNIEnv *env, jobject jtask, jdouble computationAmount) {
335 msg_task_t task = jtask_to_native_task(jtask, env);
338 jxbt_throw_notbound(env, "task", jtask);
341 MSG_task_set_flops_amount(task, (double) computationAmount);
343 JNIEXPORT void JNICALL
344 Java_org_simgrid_msg_Task_setBytesAmount
345 (JNIEnv *env, jobject jtask, jdouble dataSize) {
346 msg_task_t task = jtask_to_native_task(jtask, env);
349 jxbt_throw_notbound(env, "task", jtask);
352 env->SetDoubleField(jtask, jtask_field_Task_messageSize, dataSize);
353 MSG_task_set_bytes_amount(task, (double) dataSize);
356 JNIEXPORT void JNICALL
357 Java_org_simgrid_msg_Task_send(JNIEnv * env,jobject jtask,
362 const char *alias = env->GetStringUTFChars(jalias, 0);
364 msg_task_t task = jtask_to_native_task(jtask, env);
368 env->ReleaseStringUTFChars(jalias, alias);
369 jxbt_throw_notbound(env, "task", jtask);
373 /* Pass a global ref to the Jtask into the Ctask so that the receiver can use it */
374 MSG_task_set_data(task, (void *) env->NewGlobalRef(jtask));
375 rv = MSG_task_send_with_timeout(task, alias, (double) jtimeout);
376 env->ReleaseStringUTFChars(jalias, alias);
379 jmsg_throw_status(env, rv);
383 JNIEXPORT void JNICALL
384 Java_org_simgrid_msg_Task_sendBounded(JNIEnv * env,jobject jtask,
390 const char *alias = env->GetStringUTFChars(jalias, 0);
392 msg_task_t task = jtask_to_native_task(jtask, env);
396 env->ReleaseStringUTFChars(jalias, alias);
397 jxbt_throw_notbound(env, "task", jtask);
401 /* Pass a global ref to the Jtask into the Ctask so that the receiver can use it */
402 MSG_task_set_data(task, (void *) env->NewGlobalRef(jtask));
403 rv = MSG_task_send_with_timeout_bounded(task, alias, (double) jtimeout, (double) maxrate);
404 env->ReleaseStringUTFChars(jalias, alias);
407 jmsg_throw_status(env, rv);
411 JNIEXPORT jobject JNICALL
412 Java_org_simgrid_msg_Task_receive(JNIEnv * env, jclass cls,
413 jstring jalias, jdouble jtimeout,
417 msg_task_t *task = xbt_new(msg_task_t,1);
420 msg_host_t host = NULL;
421 jobject jtask_global, jtask_local;
425 host = jhost_get_native(env, jhost);
428 jxbt_throw_notbound(env, "host", jhost);
433 alias = env->GetStringUTFChars(jalias, 0);
434 rv = MSG_task_receive_ext(task, alias, (double) jtimeout, host);
435 if (env->ExceptionOccurred())
438 jmsg_throw_status(env,rv);
441 jtask_global = (jobject) MSG_task_get_data(*task);
443 /* Convert the global ref into a local ref so that the JVM can free the stuff */
444 jtask_local = env->NewLocalRef(jtask_global);
445 env->DeleteGlobalRef(jtask_global);
446 MSG_task_set_data(*task, NULL);
448 env->ReleaseStringUTFChars(jalias, alias);
452 return (jobject) jtask_local;
456 JNIEXPORT jobject JNICALL
457 Java_org_simgrid_msg_Task_irecv(JNIEnv * env, jclass cls, jstring jmailbox) {
461 //pointer to store the task object pointer.
462 msg_task_t *task = xbt_new(msg_task_t,1);
464 /* There should be a cache here */
465 comm_class = env->FindClass("org/simgrid/msg/Comm");
468 jxbt_throw_native(env,bprintf("fieldID or methodID or class not found."));
472 jobject jcomm = env->NewObject(comm_class, jtask_method_Comm_constructor);
474 jxbt_throw_native(env,bprintf("Can't create a Comm object."));
478 mailbox = env->GetStringUTFChars(jmailbox, 0);
480 comm = MSG_task_irecv(task,mailbox);
482 env->SetLongField(jcomm, jtask_field_Comm_bind, (jlong) (uintptr_t)(comm));
483 env->SetLongField(jcomm, jtask_field_Comm_taskBind, (jlong) (uintptr_t)(task));
484 env->SetBooleanField(jcomm, jtask_field_Comm_receiving, JNI_TRUE);
486 env->ReleaseStringUTFChars(jmailbox, mailbox);
492 JNIEXPORT jobject JNICALL
493 Java_org_simgrid_msg_Task_receiveBounded(JNIEnv * env, jclass cls,
494 jstring jalias, jdouble jtimeout,
495 jobject jhost, jdouble rate)
498 msg_task_t *task = xbt_new(msg_task_t,1);
501 msg_host_t host = NULL;
502 jobject jtask_global, jtask_local;
506 host = jhost_get_native(env, jhost);
509 jxbt_throw_notbound(env, "host", jhost);
514 alias = env->GetStringUTFChars(jalias, 0);
515 rv = MSG_task_receive_ext_bounded(task, alias, (double) jtimeout, host, (double) rate);
516 if (env->ExceptionOccurred())
519 jmsg_throw_status(env,rv);
522 jtask_global = (jobject) MSG_task_get_data(*task);
524 /* Convert the global ref into a local ref so that the JVM can free the stuff */
525 jtask_local = env->NewLocalRef(jtask_global);
526 env->DeleteGlobalRef(jtask_global);
527 MSG_task_set_data(*task, NULL);
529 env->ReleaseStringUTFChars(jalias, alias);
533 return (jobject) jtask_local;
537 JNIEXPORT jobject JNICALL
538 Java_org_simgrid_msg_Task_irecvBounded(JNIEnv * env, jclass cls,
539 jstring jmailbox, jdouble rate) {
543 //pointer to store the task object pointer.
544 msg_task_t *task = xbt_new(msg_task_t,1);
546 /* There should be a cac hee */
547 comm_class = env->FindClass("org/simgrid/msg/Comm");
550 jxbt_throw_native(env,bprintf("fieldID or methodID or class not found."));
554 jobject jcomm = env->NewObject(comm_class, jtask_method_Comm_constructor);
556 jxbt_throw_native(env,bprintf("Can't create a Comm object."));
560 mailbox = env->GetStringUTFChars(jmailbox, 0);
562 comm = MSG_task_irecv_bounded(task,mailbox, (double) rate);
564 env->SetLongField(jcomm, jtask_field_Comm_bind, (jlong) (uintptr_t)(comm));
565 env->SetLongField(jcomm, jtask_field_Comm_taskBind, (jlong) (uintptr_t)(task));
566 env->SetBooleanField(jcomm, jtask_field_Comm_receiving, JNI_TRUE);
568 env->ReleaseStringUTFChars(jmailbox, mailbox);
573 JNIEXPORT jobject JNICALL
574 Java_org_simgrid_msg_Task_isend(JNIEnv *env, jobject jtask, jstring jmailbox) {
584 comm_class = env->FindClass("org/simgrid/msg/Comm");
586 if (!comm_class) return NULL;
588 jcomm = env->NewObject(comm_class, jtask_method_Comm_constructor);
589 mailbox = env->GetStringUTFChars(jmailbox, 0);
591 task = jtask_to_native_task(jtask, env);
594 env->ReleaseStringUTFChars(jmailbox, mailbox);
595 env->DeleteLocalRef(jcomm);
596 jxbt_throw_notbound(env, "task", jtask);
600 MSG_task_set_data(task, (void *) env->NewGlobalRef(jtask));
601 comm = MSG_task_isend(task,mailbox);
603 env->SetLongField(jcomm, jtask_field_Comm_bind, (jlong) (uintptr_t)(comm));
604 env->SetLongField(jcomm, jtask_field_Comm_taskBind, (jlong) (uintptr_t)(NULL));
605 env->SetBooleanField(jcomm, jtask_field_Comm_receiving, JNI_FALSE);
607 env->ReleaseStringUTFChars(jmailbox, mailbox);
612 JNIEXPORT jobject JNICALL
613 Java_org_simgrid_msg_Task_isendBounded(JNIEnv *env, jobject jtask, jstring jmailbox, jdouble maxrate) {
623 comm_class = env->FindClass("org/simgrid/msg/Comm");
625 if (!comm_class) return NULL;
627 jcomm = env->NewObject(comm_class, jtask_method_Comm_constructor);
628 mailbox = env->GetStringUTFChars(jmailbox, 0);
630 task = jtask_to_native_task(jtask, env);
633 env->ReleaseStringUTFChars(jmailbox, mailbox);
634 env->DeleteLocalRef(jcomm);
635 jxbt_throw_notbound(env, "task", jtask);
639 MSG_task_set_data(task, (void *) env->NewGlobalRef(jtask));
640 comm = MSG_task_isend_bounded(task,mailbox,maxrate);
642 env->SetLongField(jcomm, jtask_field_Comm_bind, (jlong) (uintptr_t)(comm));
643 env->SetLongField(jcomm, jtask_field_Comm_taskBind, (jlong) (uintptr_t)(NULL));
644 env->SetBooleanField(jcomm, jtask_field_Comm_receiving, JNI_FALSE);
646 env->ReleaseStringUTFChars(jmailbox, mailbox);
651 JNIEXPORT void JNICALL
652 Java_org_simgrid_msg_Task_nativeFinalize(JNIEnv * env, jobject jtask) {
653 msg_task_t task = jtask_to_native_task(jtask, env);
656 jxbt_throw_notbound(env, "task", jtask);
660 MSG_task_destroy(task);
663 static void msg_task_cancel_on_failed_dsend(void*t) {
664 msg_task_t task = (msg_task_t) t;
665 JNIEnv *env =get_current_thread_env();
666 jobject jtask_global = (jobject) MSG_task_get_data(task);
668 /* Destroy the global ref so that the JVM can free the stuff */
669 env->DeleteGlobalRef(jtask_global);
670 MSG_task_set_data(task, NULL);
671 MSG_task_destroy(task);
674 JNIEXPORT void JNICALL
675 Java_org_simgrid_msg_Task_dsend(JNIEnv * env, jobject jtask,
677 const char *alias = env->GetStringUTFChars(jalias, 0);
679 msg_task_t task = jtask_to_native_task(jtask, env);
683 env->ReleaseStringUTFChars(jalias, alias);
684 jxbt_throw_notbound(env, "task", jtask);
688 /* Pass a global ref to the Jtask into the Ctask so that the receiver can use it */
689 MSG_task_set_data(task, (void *) env->NewGlobalRef(jtask));
690 MSG_task_dsend(task, alias, msg_task_cancel_on_failed_dsend);
692 env->ReleaseStringUTFChars(jalias, alias);
695 JNIEXPORT void JNICALL
696 Java_org_simgrid_msg_Task_dsendBounded(JNIEnv * env, jobject jtask,
697 jstring jalias, jdouble maxrate) {
698 const char *alias = env->GetStringUTFChars(jalias, 0);
700 msg_task_t task = jtask_to_native_task(jtask, env);
704 env->ReleaseStringUTFChars(jalias, alias);
705 jxbt_throw_notbound(env, "task", jtask);
709 /* Pass a global ref to the Jtask into the Ctask so that the receiver can use it */
710 MSG_task_set_data(task, (void *) env->NewGlobalRef(jtask));
711 MSG_task_dsend_bounded(task, alias, msg_task_cancel_on_failed_dsend,(double)maxrate);
713 env->ReleaseStringUTFChars(jalias, alias);
718 JNIEXPORT jboolean JNICALL
719 Java_org_simgrid_msg_Task_listen(JNIEnv * env, jclass cls, jstring jalias)
724 alias = env->GetStringUTFChars(jalias, 0);
725 rv = MSG_task_listen(alias);
726 env->ReleaseStringUTFChars(jalias, alias);
728 return (jboolean) rv;
731 JNIEXPORT jint JNICALL
732 Java_org_simgrid_msg_Task_listenFromHost(JNIEnv * env, jclass cls, jstring jalias, jobject jhost)
737 msg_host_t host = jhost_get_native(env, jhost);
740 jxbt_throw_notbound(env, "host", jhost);
743 alias = env->GetStringUTFChars(jalias, 0);
744 rv = MSG_task_listen_from_host(alias, host);
745 env->ReleaseStringUTFChars(jalias, alias);
751 JNIEXPORT jint JNICALL
752 Java_org_simgrid_msg_Task_listenFrom(JNIEnv * env, jclass cls, jstring jalias)
755 const char *alias = env->GetStringUTFChars(jalias, 0);
756 rv = MSG_task_listen_from(alias);
757 env->ReleaseStringUTFChars(jalias, alias);