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"
19 XBT_LOG_EXTERNAL_DEFAULT_CATEGORY(jmsg);
21 static jmethodID jtask_field_Comm_constructor;
23 static jfieldID jtask_field_Task_bind;
24 static jfieldID jtask_field_Comm_bind;
25 static jfieldID jtask_field_Comm_taskBind;
26 static jfieldID jtask_field_Comm_receiving;
28 void jtask_bind(jobject jtask, m_task_t task, JNIEnv * env)
30 (*env)->SetLongField(env, jtask, jtask_field_Task_bind, (jlong) (long) (task));
33 m_task_t jtask_to_native_task(jobject jtask, JNIEnv * env)
35 return (m_task_t) (long) (*env)->GetLongField(env, jtask, jtask_field_Task_bind);
38 jboolean jtask_is_valid(jobject jtask, JNIEnv * env)
40 return (*env)->GetLongField(env, jtask, jtask_field_Task_bind) ? JNI_TRUE : JNI_FALSE;
43 JNIEXPORT void JNICALL
44 Java_org_simgrid_msg_Task_nativeInit(JNIEnv *env, jclass cls) {
45 jclass jtask_class_Comm = (*env)->FindClass(env, "org/simgrid/msg/Comm");
47 jtask_field_Comm_constructor = (*env)->GetMethodID(env, jtask_class_Comm, "<init>", "()V");
48 //FIXME: Don't use jxbt_get_sfield directly.
49 jtask_field_Task_bind = jxbt_get_sfield(env, "org/simgrid/msg/Task", "bind", "J");
50 jtask_field_Comm_bind = jxbt_get_sfield(env, "org/simgrid/msg/Comm", "bind", "J");
51 jtask_field_Comm_taskBind = jxbt_get_sfield(env, "org/simgrid/msg/Comm", "taskBind", "J");
52 jtask_field_Comm_receiving = jxbt_get_sfield(env, "org/simgrid/msg/Comm", "receiving", "Z");
55 JNIEXPORT void JNICALL
56 Java_org_simgrid_msg_Task_create(JNIEnv * env,
57 jobject jtask, jstring jname,
58 jdouble jcomputeDuration,
61 m_task_t task; /* the native task to create */
62 const char *name = NULL; /* the name of the task */
64 if (jcomputeDuration < 0) {
65 jxbt_throw_illegal(env,
67 ("Task ComputeDuration (%f) cannot be negative",
68 (double) jcomputeDuration));
72 if (jmessageSize < 0) {
73 jxbt_throw_illegal(env,
74 bprintf("Task MessageSize (%f) cannot be negative",
75 (double) jmessageSize));
80 /* get the C string from the java string */
81 name = (*env)->GetStringUTFChars(env, jname, 0);
87 MSG_task_create(name, (double) jcomputeDuration,
88 (double) jmessageSize, NULL);
90 (*env)->ReleaseStringUTFChars(env, jname, name);
92 /* bind & store the task */
93 jtask_bind(jtask, task, env);
94 MSG_task_set_data(task, jtask);
97 JNIEXPORT void JNICALL
98 Java_org_simgrid_msg_Task_parallelCreate(JNIEnv * env,
103 jcomputeDurations_arg,
107 m_task_t task; /* the native parallel task to create */
108 const char *name; /* the name of the task */
111 double *computeDurations;
112 double *messageSizes;
113 jdouble *jcomputeDurations;
114 jdouble *jmessageSizes;
120 if (!jcomputeDurations_arg) {
123 ("Parallel task compute durations cannot be null"));
127 if (!jmessageSizes_arg) {
130 ("Parallel task message sizes cannot be null"));
135 jxbt_throw_null(env, xbt_strdup("Parallel task name cannot be null"));
139 host_count = (int) (*env)->GetArrayLength(env, jhosts);
142 hosts = xbt_new0(m_host_t, host_count);
143 computeDurations = xbt_new0(double, host_count);
144 messageSizes = xbt_new0(double, host_count * host_count);
147 (*env)->GetDoubleArrayElements(env, jcomputeDurations_arg, 0);
149 (*env)->GetDoubleArrayElements(env, jmessageSizes_arg, 0);
151 for (index = 0; index < host_count; index++) {
152 jhost = (*env)->GetObjectArrayElement(env, jhosts, index);
153 hosts[index] = jhost_get_native(env, jhost);
154 computeDurations[index] = jcomputeDurations[index];
156 for (index = 0; index < host_count * host_count; index++) {
157 messageSizes[index] = jmessageSizes[index];
160 (*env)->ReleaseDoubleArrayElements(env, jcomputeDurations_arg,
161 jcomputeDurations, 0);
162 (*env)->ReleaseDoubleArrayElements(env, jmessageSizes_arg, jmessageSizes,
166 /* get the C string from the java string */
167 name = (*env)->GetStringUTFChars(env, jname, 0);
170 MSG_parallel_task_create(name, host_count, hosts, computeDurations,
173 (*env)->ReleaseStringUTFChars(env, jname, name);
175 /* associate the java task object and the native task */
176 jtask_bind(jtask, task, env);
178 MSG_task_set_data(task, (void *) jtask);
180 if (!MSG_task_get_data(task))
181 jxbt_throw_jni(env, "global ref allocation failed");
184 JNIEXPORT void JNICALL
185 Java_org_simgrid_msg_Task_cancel(JNIEnv * env,
188 m_task_t ptask = jtask_to_native_task(jtask, env);
191 jxbt_throw_notbound(env, "task", jtask);
195 MSG_error_t rv = MSG_task_cancel(ptask);
197 jxbt_check_res("MSG_task_cancel()", rv, MSG_OK,
198 bprintf("unexpected error , please report this bug"));
201 JNIEXPORT void JNICALL
202 Java_org_simgrid_msg_Task_execute(JNIEnv * env,
205 m_task_t task = jtask_to_native_task(jtask, env);
208 jxbt_throw_notbound(env, "task", jtask);
212 MSG_error_t rv = MSG_task_execute(task);
214 jxbt_check_res("MSG_task_execute()", rv,
215 MSG_HOST_FAILURE | MSG_TASK_CANCELED,
216 bprintf("while executing task %s",
217 MSG_task_get_name(task)));
220 JNIEXPORT jstring JNICALL
221 Java_org_simgrid_msg_Task_getName(JNIEnv * env,
223 m_task_t task = jtask_to_native_task(jtask, env);
226 jxbt_throw_notbound(env, "task", jtask);
230 return (*env)->NewStringUTF(env, MSG_task_get_name(task));
233 JNIEXPORT jobject JNICALL
234 Java_org_simgrid_msg_Task_getSender(JNIEnv * env,
238 m_task_t task = jtask_to_native_task(jtask, env);
241 jxbt_throw_notbound(env, "task", jtask);
245 process = MSG_task_get_sender(task);
246 return (jobject) native_to_java_process(process);
249 JNIEXPORT jobject JNICALL
250 Java_org_simgrid_msg_Task_getSource(JNIEnv * env,
254 m_task_t task = jtask_to_native_task(jtask, env);
257 jxbt_throw_notbound(env, "task", jtask);
261 host = MSG_task_get_source(task);
263 if (!MSG_host_get_data(host)) {
264 jxbt_throw_jni(env, "MSG_task_get_source() failed");
268 return (jobject) MSG_host_get_data(host);
271 JNIEXPORT jdouble JNICALL
272 Java_org_simgrid_msg_Task_getComputeDuration(JNIEnv * env,
275 m_task_t ptask = jtask_to_native_task(jtask, env);
278 jxbt_throw_notbound(env, "task", jtask);
281 return (jdouble) MSG_task_get_compute_duration(ptask);
284 JNIEXPORT jdouble JNICALL
285 Java_org_simgrid_msg_Task_getRemainingDuration(JNIEnv * env, jobject jtask)
287 m_task_t ptask = jtask_to_native_task(jtask, env);
290 jxbt_throw_notbound(env, "task", jtask);
293 return (jdouble) MSG_task_get_remaining_computation(ptask);
296 JNIEXPORT void JNICALL
297 Java_org_simgrid_msg_Task_setPriority(JNIEnv * env,
298 jobject jtask, jdouble priority)
300 m_task_t task = jtask_to_native_task(jtask, env);
303 jxbt_throw_notbound(env, "task", jtask);
306 MSG_task_set_priority(task, (double) priority);
308 JNIEXPORT void JNICALL
309 Java_org_simgrid_msg_Task_send(JNIEnv * env,jobject jtask,
314 const char *alias = (*env)->GetStringUTFChars(env, jalias, 0);
316 m_task_t task = jtask_to_native_task(jtask, env);
320 (*env)->ReleaseStringUTFChars(env, jalias, alias);
321 jxbt_throw_notbound(env, "task", jtask);
325 /* Pass a global ref to the Jtask into the Ctask so that the receiver can use it */
326 MSG_task_set_data(task, (void *) (*env)->NewGlobalRef(env, jtask));
327 rv = MSG_task_send_with_timeout(task, alias, (double) jtimeout);
329 (*env)->ReleaseStringUTFChars(env, jalias, alias);
331 jxbt_check_res("MSG_task_send_with_timeout()", rv,
332 MSG_HOST_FAILURE | MSG_TRANSFER_FAILURE | MSG_TIMEOUT,
333 bprintf("while sending task %s to mailbox %s",
334 MSG_task_get_name(task), alias));
337 JNIEXPORT void JNICALL
338 Java_org_simgrid_msg_Task_sendBounded(JNIEnv * env, jobject jtask,
342 m_task_t task = jtask_to_native_task(jtask, env);
347 jxbt_throw_notbound(env, "task", jtask);
351 alias = (*env)->GetStringUTFChars(env, jalias, 0);
353 /* Pass a global ref to the Jtask into the Ctask so that the receiver can use it */
354 MSG_task_set_data(task, (void *) (*env)->NewGlobalRef(env, jtask));
355 rv = MSG_task_send_bounded(task, alias, (double) jmaxRate);
357 (*env)->ReleaseStringUTFChars(env, jalias, alias);
359 jxbt_check_res("MSG_task_send_bounded()", rv,
360 MSG_HOST_FAILURE | MSG_TRANSFER_FAILURE | MSG_TIMEOUT,
362 ("while sending task %s to mailbox %s with max rate %f",
363 MSG_task_get_name(task), alias, (double) jmaxRate));
368 JNIEXPORT jobject JNICALL
369 Java_org_simgrid_msg_Task_receive(JNIEnv * env, jclass cls,
370 jstring jalias, jdouble jtimeout,
374 m_task_t task = NULL;
375 m_host_t host = NULL;
376 jobject jtask_global, jtask_local;
380 host = jhost_get_native(env, jhost);
383 jxbt_throw_notbound(env, "host", jhost);
388 alias = (*env)->GetStringUTFChars(env, jalias, 0);
390 rv = MSG_task_receive_ext(&task, alias, (double) jtimeout, host);
394 jxbt_throw_time_out_failure(env,NULL);
396 case MSG_TRANSFER_FAILURE:
397 jxbt_throw_transfer_failure(env,NULL);
399 case MSG_HOST_FAILURE:
400 jxbt_throw_host_failure(env,NULL);
403 jxbt_throw_native(env,bprintf("receive failed"));
407 jtask_global = MSG_task_get_data(task);
409 /* Convert the global ref into a local ref so that the JVM can free the stuff */
410 jtask_local = (*env)->NewLocalRef(env, jtask_global);
411 (*env)->DeleteGlobalRef(env, jtask_global);
412 MSG_task_set_data(task, NULL);
414 (*env)->ReleaseStringUTFChars(env, jalias, alias);
416 jxbt_check_res("MSG_task_receive_ext()", rv,
417 MSG_HOST_FAILURE | MSG_TRANSFER_FAILURE | MSG_TIMEOUT,
418 bprintf("while receiving from mailbox %s", alias));
420 return (jobject) jtask_local;
424 JNIEXPORT jobject JNICALL
425 Java_org_simgrid_msg_Task_irecv(JNIEnv * env, jclass cls, jstring jmailbox) {
429 //pointer to store the task object pointer.
430 m_task_t *task = xbt_new(m_task_t,1);
432 /* There should be a cache here */
433 comm_class = (*env)->FindClass(env, "org/simgrid/msg/Comm");
436 jxbt_throw_native(env,bprintf("fieldID or methodID or class not found."));
440 jobject jcomm = (*env)->NewObject(env, comm_class, jtask_field_Comm_constructor);
442 jxbt_throw_native(env,bprintf("Can't create a Comm object."));
446 mailbox = (*env)->GetStringUTFChars(env, jmailbox, 0);
448 comm = MSG_task_irecv(task,mailbox);
450 (*env)->SetLongField(env, jcomm, jtask_field_Comm_bind, (jlong) (long)(comm));
451 (*env)->SetLongField(env, jcomm, jtask_field_Comm_taskBind, (jlong) (long)(task));
452 (*env)->SetBooleanField(env, jcomm, jtask_field_Comm_receiving, JNI_TRUE);
454 (*env)->ReleaseStringUTFChars(env, jmailbox, mailbox);
459 JNIEXPORT jobject JNICALL
460 Java_org_simgrid_msg_Task_isend(JNIEnv *env, jobject jtask, jstring jmailbox) {
470 comm_class = (*env)->FindClass(env, "org/simgrid/msg/Comm");
472 if (!comm_class) return NULL;
474 jcomm = (*env)->NewObject(env, comm_class, jtask_field_Comm_constructor);
475 mailbox = (*env)->GetStringUTFChars(env, jmailbox, 0);
477 task = jtask_to_native_task(jtask, env);
480 (*env)->ReleaseStringUTFChars(env, jmailbox, mailbox);
481 (*env)->DeleteLocalRef(env, jcomm);
482 jxbt_throw_notbound(env, "task", jtask);
486 MSG_task_set_data(task, (void *) (*env)->NewGlobalRef(env, jtask));
487 comm = MSG_task_isend(task,mailbox);
489 (*env)->SetLongField(env, jcomm, jtask_field_Comm_bind, (jlong) (long)(comm));
490 (*env)->SetLongField(env, jcomm, jtask_field_Comm_taskBind, (jlong) (long)(NULL));
491 (*env)->SetBooleanField(env, jcomm, jtask_field_Comm_receiving, JNI_FALSE);
493 (*env)->ReleaseStringUTFChars(env, jmailbox, mailbox);
498 static void msg_task_cancel_on_failed_dsend(void*t) {
500 JNIEnv *env =get_current_thread_env();
501 jobject jtask_global = MSG_task_get_data(task);
503 /* Destroy the global ref so that the JVM can free the stuff */
504 (*env)->DeleteGlobalRef(env, jtask_global);
505 MSG_task_set_data(task, NULL);
506 MSG_task_destroy(task);
509 JNIEXPORT void JNICALL
510 Java_org_simgrid_msg_Task_dsend(JNIEnv * env, jobject jtask,
513 const char *alias = (*env)->GetStringUTFChars(env, jalias, 0);
515 m_task_t task = jtask_to_native_task(jtask, env);
519 (*env)->ReleaseStringUTFChars(env, jalias, alias);
520 jxbt_throw_notbound(env, "task", jtask);
524 /* Pass a global ref to the Jtask into the Ctask so that the receiver can use it */
525 MSG_task_set_data(task, (void *) (*env)->NewGlobalRef(env, jtask));
526 MSG_task_dsend(task, alias, msg_task_cancel_on_failed_dsend);
528 (*env)->ReleaseStringUTFChars(env, jalias, alias);
531 JNIEXPORT jboolean JNICALL
532 Java_org_simgrid_msg_Task_listen(JNIEnv * env, jclass cls,
538 alias = (*env)->GetStringUTFChars(env, jalias, 0);
540 rv = MSG_task_listen(alias);
542 (*env)->ReleaseStringUTFChars(env, jalias, alias);
544 return (jboolean) rv;
547 JNIEXPORT jint JNICALL
548 Java_org_simgrid_msg_Task_listenFromHost(JNIEnv * env, jclass cls,
554 m_host_t host = jhost_get_native(env, jhost);
557 jxbt_throw_notbound(env, "host", jhost);
560 alias = (*env)->GetStringUTFChars(env, jalias, 0);
562 rv = MSG_task_listen_from_host(alias, host);
564 (*env)->ReleaseStringUTFChars(env, jalias, alias);
570 JNIEXPORT jint JNICALL
571 Java_org_simgrid_msg_Task_listenFrom(JNIEnv * env, jclass cls,
575 const char *alias = (*env)->GetStringUTFChars(env, jalias, 0);
577 rv = MSG_task_listen_from(alias);
579 (*env)->ReleaseStringUTFChars(env, jalias, alias);