1 /* Functions related to the java task instances. */
3 /* Copyright (c) 2007, 2009, 2010. 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_Comm_bind;
27 static jfieldID jtask_field_Comm_taskBind;
28 static jfieldID jtask_field_Comm_receiving;
30 void jtask_bind(jobject jtask, m_task_t task, JNIEnv * env)
32 (*env)->SetLongField(env, jtask, jtask_field_Task_bind, (jlong) (long) (task));
35 m_task_t jtask_to_native_task(jobject jtask, JNIEnv * env)
37 return (m_task_t) (long) (*env)->GetLongField(env, jtask, jtask_field_Task_bind);
40 jboolean jtask_is_valid(jobject jtask, JNIEnv * env)
42 return (*env)->GetLongField(env, 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(env, "org/simgrid/msg/Comm");
48 jclass jtask_class_Task = (*env)->FindClass(env, "org/simgrid/msg/Task");
50 jtask_method_Comm_constructor = (*env)->GetMethodID(env, 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_Comm_bind = jxbt_get_jfield(env, jtask_class_Comm, "bind", "J");
54 jtask_field_Comm_taskBind = jxbt_get_jfield(env, jtask_class_Comm, "taskBind", "J");
55 jtask_field_Comm_receiving = jxbt_get_jfield(env, jtask_class_Comm, "receiving", "Z");
56 if (!jtask_field_Task_bind || !jtask_class_Task || !jtask_field_Comm_bind || !jtask_field_Comm_taskBind ||
57 !jtask_field_Comm_receiving || !jtask_method_Comm_constructor) {
58 jxbt_throw_native(env,bprintf("Can't find some fields in Java class."));
62 JNIEXPORT void JNICALL
63 Java_org_simgrid_msg_Task_create(JNIEnv * env,
64 jobject jtask, jstring jname,
65 jdouble jcomputeDuration,
68 m_task_t task; /* the native task to create */
69 const char *name = NULL; /* the name of the task */
71 if (jcomputeDuration < 0) {
72 jxbt_throw_illegal(env,
74 ("Task ComputeDuration (%f) cannot be negative",
75 (double) jcomputeDuration));
79 if (jmessageSize < 0) {
80 jxbt_throw_illegal(env,
81 bprintf("Task MessageSize (%f) cannot be negative",
82 (double) jmessageSize));
87 /* get the C string from the java string */
88 name = (*env)->GetStringUTFChars(env, jname, 0);
93 MSG_task_create(name, (double) jcomputeDuration,
94 (double) jmessageSize, NULL);
96 (*env)->ReleaseStringUTFChars(env, jname, name);
97 /* sets the task name */
98 (*env)->SetObjectField(env, jtask, jtask_field_Task_name, jname);
99 /* bind & store the task */
100 jtask_bind(jtask, task, env);
101 MSG_task_set_data(task, jtask);
104 JNIEXPORT void JNICALL
105 Java_org_simgrid_msg_Task_parallelCreate(JNIEnv * env,
110 jcomputeDurations_arg,
114 m_task_t task; /* the native parallel task to create */
115 const char *name; /* the name of the task */
118 double *computeDurations;
119 double *messageSizes;
120 jdouble *jcomputeDurations;
121 jdouble *jmessageSizes;
126 if (!jcomputeDurations_arg) {
129 ("Parallel task compute durations cannot be null"));
133 if (!jmessageSizes_arg) {
136 ("Parallel task message sizes cannot be null"));
141 jxbt_throw_null(env, xbt_strdup("Parallel task name cannot be null"));
145 host_count = (int) (*env)->GetArrayLength(env, jhosts);
148 hosts = xbt_new0(m_host_t, host_count);
149 computeDurations = xbt_new0(double, host_count);
150 messageSizes = xbt_new0(double, host_count * host_count);
153 (*env)->GetDoubleArrayElements(env, jcomputeDurations_arg, 0);
155 (*env)->GetDoubleArrayElements(env, jmessageSizes_arg, 0);
157 for (index = 0; index < host_count; index++) {
158 jhost = (*env)->GetObjectArrayElement(env, jhosts, index);
159 hosts[index] = jhost_get_native(env, jhost);
160 computeDurations[index] = jcomputeDurations[index];
162 for (index = 0; index < host_count * host_count; index++) {
163 messageSizes[index] = jmessageSizes[index];
166 (*env)->ReleaseDoubleArrayElements(env, jcomputeDurations_arg,
167 jcomputeDurations, 0);
168 (*env)->ReleaseDoubleArrayElements(env, jmessageSizes_arg, jmessageSizes,
172 /* get the C string from the java string */
173 name = (*env)->GetStringUTFChars(env, jname, 0);
176 MSG_parallel_task_create(name, host_count, hosts, computeDurations,
179 (*env)->ReleaseStringUTFChars(env, jname, name);
180 /* sets the task name */
181 (*env)->SetObjectField(env, 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 m_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,
212 m_task_t task = jtask_to_native_task(jtask, env);
215 jxbt_throw_notbound(env, "task", jtask);
220 rv = MSG_task_execute(task);
226 jmsg_throw_status(env, rv);
230 JNIEXPORT jstring JNICALL
231 Java_org_simgrid_msg_Task_getName(JNIEnv * env,
233 m_task_t task = jtask_to_native_task(jtask, env);
236 jxbt_throw_notbound(env, "task", jtask);
240 return (*env)->NewStringUTF(env, MSG_task_get_name(task));
243 JNIEXPORT jobject JNICALL
244 Java_org_simgrid_msg_Task_getSender(JNIEnv * env,
248 m_task_t task = jtask_to_native_task(jtask, env);
251 jxbt_throw_notbound(env, "task", jtask);
255 process = MSG_task_get_sender(task);
256 if (process == NULL) {
259 return (jobject) native_to_java_process(process);
262 JNIEXPORT jobject JNICALL
263 Java_org_simgrid_msg_Task_getSource(JNIEnv * env,
267 m_task_t task = jtask_to_native_task(jtask, env);
270 jxbt_throw_notbound(env, "task", jtask);
274 host = MSG_task_get_source(task);
278 if (!MSG_host_get_data(host)) {
279 jxbt_throw_jni(env, "MSG_task_get_source() failed");
283 return (jobject) MSG_host_get_data(host);
286 JNIEXPORT jdouble JNICALL
287 Java_org_simgrid_msg_Task_getComputeDuration(JNIEnv * env,
290 m_task_t ptask = jtask_to_native_task(jtask, env);
293 jxbt_throw_notbound(env, "task", jtask);
296 return (jdouble) MSG_task_get_compute_duration(ptask);
299 JNIEXPORT jdouble JNICALL
300 Java_org_simgrid_msg_Task_getRemainingDuration(JNIEnv * env, jobject jtask)
302 m_task_t ptask = jtask_to_native_task(jtask, env);
305 jxbt_throw_notbound(env, "task", jtask);
308 return (jdouble) MSG_task_get_remaining_computation(ptask);
310 JNIEXPORT void JNICALL
311 Java_org_simgrid_msg_Task_setName(JNIEnv *env, jobject jtask, jobject jname) {
312 m_task_t task = jtask_to_native_task(jtask, env);
315 jxbt_throw_notbound(env, "task", jtask);
318 const char *name = (*env)->GetStringUTFChars(env, jname, 0);
320 (*env)->SetObjectField(env, jtask, jtask_field_Task_name, jname);
321 MSG_task_set_name(task, name);
323 (*env)->ReleaseStringUTFChars(env, jname, name);
325 JNIEXPORT void JNICALL
326 Java_org_simgrid_msg_Task_setPriority(JNIEnv * env,
327 jobject jtask, jdouble priority)
329 m_task_t task = jtask_to_native_task(jtask, env);
332 jxbt_throw_notbound(env, "task", jtask);
335 MSG_task_set_priority(task, (double) priority);
337 JNIEXPORT void JNICALL
338 Java_org_simgrid_msg_Task_setComputeDuration
339 (JNIEnv *env, jobject jtask, jdouble computationAmount) {
340 m_task_t task = jtask_to_native_task(jtask, env);
343 jxbt_throw_notbound(env, "task", jtask);
346 MSG_task_set_compute_duration(task, (double) computationAmount);
348 JNIEXPORT void JNICALL
349 Java_org_simgrid_msg_Task_send(JNIEnv * env,jobject jtask,
354 const char *alias = (*env)->GetStringUTFChars(env, jalias, 0);
356 m_task_t task = jtask_to_native_task(jtask, env);
360 (*env)->ReleaseStringUTFChars(env, jalias, alias);
361 jxbt_throw_notbound(env, "task", jtask);
365 /* Pass a global ref to the Jtask into the Ctask so that the receiver can use it */
366 MSG_task_set_data(task, (void *) (*env)->NewGlobalRef(env, jtask));
367 rv = MSG_task_send_with_timeout(task, alias, (double) jtimeout);
369 (*env)->ReleaseStringUTFChars(env, jalias, alias);
372 jmsg_throw_status(env, rv);
376 JNIEXPORT void JNICALL
377 Java_org_simgrid_msg_Task_sendBounded(JNIEnv * env, jobject jtask,
381 m_task_t task = jtask_to_native_task(jtask, env);
386 jxbt_throw_notbound(env, "task", jtask);
390 alias = (*env)->GetStringUTFChars(env, jalias, 0);
392 /* Pass a global ref to the Jtask into the Ctask so that the receiver can use it */
393 MSG_task_set_data(task, (void *) (*env)->NewGlobalRef(env, jtask));
394 rv = MSG_task_send_bounded(task, alias, (double) jmaxRate);
396 (*env)->ReleaseStringUTFChars(env, jalias, alias);
398 jxbt_check_res("MSG_task_send_bounded()", rv,
399 MSG_HOST_FAILURE | MSG_TRANSFER_FAILURE | MSG_TIMEOUT,
401 ("while sending task %s to mailbox %s with max rate %f",
402 MSG_task_get_name(task), alias, (double) jmaxRate));
407 JNIEXPORT jobject JNICALL
408 Java_org_simgrid_msg_Task_receive(JNIEnv * env, jclass cls,
409 jstring jalias, jdouble jtimeout,
413 m_task_t *task = xbt_new(m_task_t,1);
416 m_host_t host = NULL;
417 jobject jtask_global, jtask_local;
421 host = jhost_get_native(env, jhost);
424 jxbt_throw_notbound(env, "host", jhost);
429 alias = (*env)->GetStringUTFChars(env, jalias, 0);
431 rv = MSG_task_receive_ext(task, alias, (double) jtimeout, host);
437 jmsg_throw_status(env,rv);
440 jtask_global = MSG_task_get_data(*task);
442 /* Convert the global ref into a local ref so that the JVM can free the stuff */
443 jtask_local = (*env)->NewLocalRef(env, jtask_global);
444 (*env)->DeleteGlobalRef(env, jtask_global);
445 MSG_task_set_data(*task, NULL);
447 (*env)->ReleaseStringUTFChars(env, jalias, alias);
451 jxbt_check_res("MSG_task_receive_ext()", rv,
452 MSG_HOST_FAILURE | MSG_TRANSFER_FAILURE | MSG_TIMEOUT,
453 bprintf("while receiving from mailbox %s", 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 m_task_t *task = xbt_new(m_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);
494 JNIEXPORT jobject JNICALL
495 Java_org_simgrid_msg_Task_isend(JNIEnv *env, jobject jtask, jstring jmailbox) {
505 comm_class = (*env)->FindClass(env, "org/simgrid/msg/Comm");
507 if (!comm_class) return NULL;
509 jcomm = (*env)->NewObject(env, comm_class, jtask_method_Comm_constructor);
510 mailbox = (*env)->GetStringUTFChars(env, jmailbox, 0);
512 task = jtask_to_native_task(jtask, env);
515 (*env)->ReleaseStringUTFChars(env, jmailbox, mailbox);
516 (*env)->DeleteLocalRef(env, jcomm);
517 jxbt_throw_notbound(env, "task", jtask);
521 MSG_task_set_data(task, (void *) (*env)->NewGlobalRef(env, jtask));
522 comm = MSG_task_isend(task,mailbox);
524 (*env)->SetLongField(env, jcomm, jtask_field_Comm_bind, (jlong) (long)(comm));
525 (*env)->SetLongField(env, jcomm, jtask_field_Comm_taskBind, (jlong) (long)(NULL));
526 (*env)->SetBooleanField(env, jcomm, jtask_field_Comm_receiving, JNI_FALSE);
528 (*env)->ReleaseStringUTFChars(env, jmailbox, mailbox);
533 static void msg_task_cancel_on_failed_dsend(void*t) {
535 JNIEnv *env =get_current_thread_env();
536 jobject jtask_global = MSG_task_get_data(task);
538 /* Destroy the global ref so that the JVM can free the stuff */
539 (*env)->DeleteGlobalRef(env, jtask_global);
540 MSG_task_set_data(task, NULL);
541 MSG_task_destroy(task);
544 JNIEXPORT void JNICALL
545 Java_org_simgrid_msg_Task_dsend(JNIEnv * env, jobject jtask,
547 const char *alias = (*env)->GetStringUTFChars(env, jalias, 0);
549 m_task_t task = jtask_to_native_task(jtask, env);
553 (*env)->ReleaseStringUTFChars(env, jalias, alias);
554 jxbt_throw_notbound(env, "task", jtask);
558 /* Pass a global ref to the Jtask into the Ctask so that the receiver can use it */
559 MSG_task_set_data(task, (void *) (*env)->NewGlobalRef(env, jtask));
560 MSG_task_dsend(task, alias, msg_task_cancel_on_failed_dsend);
562 (*env)->ReleaseStringUTFChars(env, jalias, alias);
565 JNIEXPORT jboolean JNICALL
566 Java_org_simgrid_msg_Task_listen(JNIEnv * env, jclass cls,
572 alias = (*env)->GetStringUTFChars(env, jalias, 0);
574 rv = MSG_task_listen(alias);
579 (*env)->ReleaseStringUTFChars(env, jalias, alias);
581 return (jboolean) rv;
584 JNIEXPORT jint JNICALL
585 Java_org_simgrid_msg_Task_listenFromHost(JNIEnv * env, jclass cls,
591 m_host_t host = jhost_get_native(env, jhost);
594 jxbt_throw_notbound(env, "host", jhost);
597 alias = (*env)->GetStringUTFChars(env, jalias, 0);
599 rv = MSG_task_listen_from_host(alias, host);
604 (*env)->ReleaseStringUTFChars(env, jalias, alias);
610 JNIEXPORT jint JNICALL
611 Java_org_simgrid_msg_Task_listenFrom(JNIEnv * env, jclass cls,
615 const char *alias = (*env)->GetStringUTFChars(env, jalias, 0);
617 rv = MSG_task_listen_from(alias);
622 (*env)->ReleaseStringUTFChars(env, jalias, alias);