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, msg_task_t task, JNIEnv * env)
32 (*env)->SetLongField(env, jtask, jtask_field_Task_bind, (jlong) (long) (task));
35 msg_task_t jtask_to_native_task(jobject jtask, JNIEnv * env)
37 return (msg_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 msg_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 msg_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(msg_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 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,
212 msg_task_t task = jtask_to_native_task(jtask, env);
215 jxbt_throw_notbound(env, "task", jtask);
221 rv = MSG_task_execute(task);
228 jmsg_throw_status(env, rv);
232 JNIEXPORT jstring JNICALL
233 Java_org_simgrid_msg_Task_getName(JNIEnv * env,
235 msg_task_t task = jtask_to_native_task(jtask, env);
238 jxbt_throw_notbound(env, "task", jtask);
242 return (*env)->NewStringUTF(env, MSG_task_get_name(task));
245 JNIEXPORT jobject JNICALL
246 Java_org_simgrid_msg_Task_getSender(JNIEnv * env,
248 msg_process_t process;
250 msg_task_t task = jtask_to_native_task(jtask, env);
253 jxbt_throw_notbound(env, "task", jtask);
257 process = MSG_task_get_sender(task);
258 if (process == NULL) {
261 return (jobject) native_to_java_process(process);
264 JNIEXPORT jobject JNICALL
265 Java_org_simgrid_msg_Task_getSource(JNIEnv * env,
269 msg_task_t task = jtask_to_native_task(jtask, env);
272 jxbt_throw_notbound(env, "task", jtask);
276 host = MSG_task_get_source(task);
280 if (!MSG_host_get_data(host)) {
281 jxbt_throw_jni(env, "MSG_task_get_source() failed");
285 return (jobject) MSG_host_get_data(host);
288 JNIEXPORT jdouble JNICALL
289 Java_org_simgrid_msg_Task_getComputeDuration(JNIEnv * env,
292 msg_task_t ptask = jtask_to_native_task(jtask, env);
295 jxbt_throw_notbound(env, "task", jtask);
298 return (jdouble) MSG_task_get_compute_duration(ptask);
301 JNIEXPORT jdouble JNICALL
302 Java_org_simgrid_msg_Task_getRemainingDuration(JNIEnv * env, jobject jtask)
304 msg_task_t ptask = jtask_to_native_task(jtask, env);
307 jxbt_throw_notbound(env, "task", jtask);
310 return (jdouble) MSG_task_get_remaining_computation(ptask);
312 JNIEXPORT void JNICALL
313 Java_org_simgrid_msg_Task_setName(JNIEnv *env, jobject jtask, jobject jname) {
314 msg_task_t task = jtask_to_native_task(jtask, env);
317 jxbt_throw_notbound(env, "task", jtask);
320 const char *name = (*env)->GetStringUTFChars(env, jname, 0);
322 (*env)->SetObjectField(env, jtask, jtask_field_Task_name, jname);
323 MSG_task_set_name(task, name);
325 (*env)->ReleaseStringUTFChars(env, jname, name);
327 JNIEXPORT void JNICALL
328 Java_org_simgrid_msg_Task_setPriority(JNIEnv * env,
329 jobject jtask, jdouble priority)
331 msg_task_t task = jtask_to_native_task(jtask, env);
334 jxbt_throw_notbound(env, "task", jtask);
337 MSG_task_set_priority(task, (double) priority);
339 JNIEXPORT void JNICALL
340 Java_org_simgrid_msg_Task_setComputeDuration
341 (JNIEnv *env, jobject jtask, jdouble computationAmount) {
342 msg_task_t task = jtask_to_native_task(jtask, env);
345 jxbt_throw_notbound(env, "task", jtask);
348 MSG_task_set_compute_duration(task, (double) computationAmount);
350 JNIEXPORT void JNICALL
351 Java_org_simgrid_msg_Task_send(JNIEnv * env,jobject jtask,
356 const char *alias = (*env)->GetStringUTFChars(env, jalias, 0);
358 msg_task_t task = jtask_to_native_task(jtask, env);
362 (*env)->ReleaseStringUTFChars(env, jalias, alias);
363 jxbt_throw_notbound(env, "task", jtask);
367 /* Pass a global ref to the Jtask into the Ctask so that the receiver can use it */
368 MSG_task_set_data(task, (void *) (*env)->NewGlobalRef(env, jtask));
371 rv = MSG_task_send_with_timeout(task, alias, (double) jtimeout);
376 (*env)->ReleaseStringUTFChars(env, jalias, alias);
379 jmsg_throw_status(env, rv);
383 JNIEXPORT void JNICALL
384 Java_org_simgrid_msg_Task_sendBounded(JNIEnv * env, jobject jtask,
388 msg_task_t task = jtask_to_native_task(jtask, env);
393 jxbt_throw_notbound(env, "task", jtask);
397 alias = (*env)->GetStringUTFChars(env, jalias, 0);
399 /* Pass a global ref to the Jtask into the Ctask so that the receiver can use it */
400 MSG_task_set_data(task, (void *) (*env)->NewGlobalRef(env, jtask));
404 rv = MSG_task_send_bounded(task, alias, (double) jmaxRate);
409 (*env)->ReleaseStringUTFChars(env, jalias, alias);
412 jmsg_throw_status(env, rv);
417 JNIEXPORT jobject JNICALL
418 Java_org_simgrid_msg_Task_receive(JNIEnv * env, jclass cls,
419 jstring jalias, jdouble jtimeout,
423 msg_task_t *task = xbt_new(msg_task_t,1);
426 msg_host_t host = NULL;
427 jobject jtask_global, jtask_local;
431 host = jhost_get_native(env, jhost);
434 jxbt_throw_notbound(env, "host", jhost);
439 alias = (*env)->GetStringUTFChars(env, jalias, 0);
442 rv = MSG_task_receive_ext(task, alias, (double) jtimeout, host);
449 jmsg_throw_status(env,rv);
452 jtask_global = MSG_task_get_data(*task);
454 /* Convert the global ref into a local ref so that the JVM can free the stuff */
455 jtask_local = (*env)->NewLocalRef(env, jtask_global);
456 (*env)->DeleteGlobalRef(env, jtask_global);
457 MSG_task_set_data(*task, NULL);
459 (*env)->ReleaseStringUTFChars(env, jalias, alias);
463 return (jobject) jtask_local;
467 JNIEXPORT jobject JNICALL
468 Java_org_simgrid_msg_Task_irecv(JNIEnv * env, jclass cls, jstring jmailbox) {
472 //pointer to store the task object pointer.
473 msg_task_t *task = xbt_new(msg_task_t,1);
475 /* There should be a cache here */
476 comm_class = (*env)->FindClass(env, "org/simgrid/msg/Comm");
479 jxbt_throw_native(env,bprintf("fieldID or methodID or class not found."));
483 jobject jcomm = (*env)->NewObject(env, comm_class, jtask_method_Comm_constructor);
485 jxbt_throw_native(env,bprintf("Can't create a Comm object."));
489 mailbox = (*env)->GetStringUTFChars(env, jmailbox, 0);
491 comm = MSG_task_irecv(task,mailbox);
493 (*env)->SetLongField(env, jcomm, jtask_field_Comm_bind, (jlong) (long)(comm));
494 (*env)->SetLongField(env, jcomm, jtask_field_Comm_taskBind, (jlong) (long)(task));
495 (*env)->SetBooleanField(env, jcomm, jtask_field_Comm_receiving, JNI_TRUE);
497 (*env)->ReleaseStringUTFChars(env, jmailbox, mailbox);
502 JNIEXPORT jobject JNICALL
503 Java_org_simgrid_msg_Task_isend(JNIEnv *env, jobject jtask, jstring jmailbox) {
513 comm_class = (*env)->FindClass(env, "org/simgrid/msg/Comm");
515 if (!comm_class) return NULL;
517 jcomm = (*env)->NewObject(env, comm_class, jtask_method_Comm_constructor);
518 mailbox = (*env)->GetStringUTFChars(env, jmailbox, 0);
520 task = jtask_to_native_task(jtask, env);
523 (*env)->ReleaseStringUTFChars(env, jmailbox, mailbox);
524 (*env)->DeleteLocalRef(env, jcomm);
525 jxbt_throw_notbound(env, "task", jtask);
529 MSG_task_set_data(task, (void *) (*env)->NewGlobalRef(env, jtask));
530 comm = MSG_task_isend(task,mailbox);
532 (*env)->SetLongField(env, jcomm, jtask_field_Comm_bind, (jlong) (long)(comm));
533 (*env)->SetLongField(env, jcomm, jtask_field_Comm_taskBind, (jlong) (long)(NULL));
534 (*env)->SetBooleanField(env, jcomm, jtask_field_Comm_receiving, JNI_FALSE);
536 (*env)->ReleaseStringUTFChars(env, jmailbox, mailbox);
541 static void msg_task_cancel_on_failed_dsend(void*t) {
543 JNIEnv *env =get_current_thread_env();
544 jobject jtask_global = MSG_task_get_data(task);
546 /* Destroy the global ref so that the JVM can free the stuff */
547 (*env)->DeleteGlobalRef(env, jtask_global);
548 MSG_task_set_data(task, NULL);
549 MSG_task_destroy(task);
552 JNIEXPORT void JNICALL
553 Java_org_simgrid_msg_Task_dsend(JNIEnv * env, jobject jtask,
555 const char *alias = (*env)->GetStringUTFChars(env, jalias, 0);
557 msg_task_t task = jtask_to_native_task(jtask, env);
561 (*env)->ReleaseStringUTFChars(env, jalias, alias);
562 jxbt_throw_notbound(env, "task", jtask);
566 /* Pass a global ref to the Jtask into the Ctask so that the receiver can use it */
567 MSG_task_set_data(task, (void *) (*env)->NewGlobalRef(env, jtask));
568 MSG_task_dsend(task, alias, msg_task_cancel_on_failed_dsend);
570 (*env)->ReleaseStringUTFChars(env, jalias, alias);
573 JNIEXPORT jboolean JNICALL
574 Java_org_simgrid_msg_Task_listen(JNIEnv * env, jclass cls,
581 alias = (*env)->GetStringUTFChars(env, jalias, 0);
583 rv = MSG_task_listen(alias);
589 (*env)->ReleaseStringUTFChars(env, jalias, alias);
591 return (jboolean) rv;
594 JNIEXPORT jint JNICALL
595 Java_org_simgrid_msg_Task_listenFromHost(JNIEnv * env, jclass cls,
601 msg_host_t host = jhost_get_native(env, jhost);
604 jxbt_throw_notbound(env, "host", jhost);
607 alias = (*env)->GetStringUTFChars(env, jalias, 0);
611 rv = MSG_task_listen_from_host(alias, host);
617 (*env)->ReleaseStringUTFChars(env, jalias, alias);
623 JNIEXPORT jint JNICALL
624 Java_org_simgrid_msg_Task_listenFrom(JNIEnv * env, jclass cls,
628 const char *alias = (*env)->GetStringUTFChars(env, jalias, 0);
631 rv = MSG_task_listen_from(alias);
637 (*env)->ReleaseStringUTFChars(env, jalias, alias);