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 <xbt/sysdep.h>
13 #include <simgrid/msg.h>
14 #include <simgrid/s4u/host.hpp>
17 #include "jmsg_host.h"
18 #include "jmsg_task.h"
19 #include "jmsg_process.h"
20 #include "jxbt_utilities.h"
22 XBT_LOG_EXTERNAL_DEFAULT_CATEGORY(jmsg);
24 static jmethodID jtask_method_Comm_constructor;
26 static jfieldID jtask_field_Task_bind;
27 static jfieldID jtask_field_Task_name;
28 static jfieldID jtask_field_Task_messageSize;
29 static jfieldID jtask_field_Comm_bind;
30 static jfieldID jtask_field_Comm_taskBind;
31 static jfieldID jtask_field_Comm_receiving;
33 void jtask_bind(jobject jtask, msg_task_t task, JNIEnv * env)
35 env->SetLongField(jtask, jtask_field_Task_bind, (intptr_t)task);
38 msg_task_t jtask_to_native_task(jobject jtask, JNIEnv * env)
40 return (msg_task_t)(intptr_t)env->GetLongField(jtask, jtask_field_Task_bind);
43 jboolean jtask_is_valid(jobject jtask, JNIEnv * env)
45 return env->GetLongField(jtask, jtask_field_Task_bind) ? JNI_TRUE : JNI_FALSE;
48 JNIEXPORT void JNICALL Java_org_simgrid_msg_Task_nativeInit(JNIEnv *env, jclass cls) {
49 jclass jtask_class_Comm = env->FindClass("org/simgrid/msg/Comm");
50 jclass jtask_class_Task = env->FindClass("org/simgrid/msg/Task");
52 jtask_method_Comm_constructor = env->GetMethodID(jtask_class_Comm, "<init>", "()V");
53 jtask_field_Task_bind = jxbt_get_jfield(env, jtask_class_Task, "bind", "J");
54 jtask_field_Task_name = jxbt_get_jfield(env, jtask_class_Task, "name", "Ljava/lang/String;");
55 jtask_field_Task_messageSize = jxbt_get_jfield(env, jtask_class_Task, "messageSize", "D");
56 jtask_field_Comm_bind = jxbt_get_jfield(env, jtask_class_Comm, "bind", "J");
57 jtask_field_Comm_taskBind = jxbt_get_jfield(env, jtask_class_Comm, "taskBind", "J");
58 jtask_field_Comm_receiving = jxbt_get_jfield(env, jtask_class_Comm, "receiving", "Z");
59 if (!jtask_field_Task_bind || !jtask_class_Task || !jtask_field_Comm_bind || !jtask_field_Comm_taskBind ||
60 !jtask_field_Comm_receiving || !jtask_method_Comm_constructor) {
61 jxbt_throw_native(env,bprintf("Can't find some fields in Java class."));
65 JNIEXPORT void JNICALL Java_org_simgrid_msg_Task_create(JNIEnv * env, jobject jtask, jstring jname,
66 jdouble jflopsAmount, jdouble jbytesAmount)
68 msg_task_t task; /* the native task to create */
69 const char *name = nullptr; /* the name of the task */
71 if (jflopsAmount < 0) {
72 jxbt_throw_illegal(env, bprintf("Task flopsAmount (%f) cannot be negative", (double) jflopsAmount));
76 if (jbytesAmount < 0) {
77 jxbt_throw_illegal(env, bprintf("Task bytesAmount (%f) cannot be negative", (double) jbytesAmount));
82 /* get the C string from the java string */
83 name = env->GetStringUTFChars(jname, 0);
87 task = MSG_task_create(name, (double) jflopsAmount, (double) jbytesAmount, nullptr);
89 env->ReleaseStringUTFChars(jname, name);
90 /* sets the task name */
91 env->SetObjectField(jtask, jtask_field_Task_name, jname);
92 /* bind & store the task */
93 jtask_bind(jtask, task, env);
94 MSG_task_set_data(task, jtask);
97 JNIEXPORT void JNICALL Java_org_simgrid_msg_Task_parallelCreate(JNIEnv * env, jobject jtask, jstring jname,
98 jobjectArray jhosts, jdoubleArray jcomputeDurations_arg,
99 jdoubleArray jmessageSizes_arg)
101 msg_task_t task; /* the native parallel task to create */
102 const char *name; /* the name of the task */
105 double *computeDurations;
106 double *messageSizes;
107 jdouble *jcomputeDurations;
108 jdouble *jmessageSizes;
112 if (!jcomputeDurations_arg) {
113 jxbt_throw_null(env, xbt_strdup("Parallel task flops amounts cannot be null"));
117 if (!jmessageSizes_arg) {
118 jxbt_throw_null(env, xbt_strdup("Parallel task bytes amounts cannot be null"));
123 jxbt_throw_null(env, xbt_strdup("Parallel task name cannot be null"));
127 host_count = (int) env->GetArrayLength(jhosts);
129 hosts = xbt_new0(msg_host_t, host_count);
130 computeDurations = xbt_new0(double, host_count);
131 messageSizes = xbt_new0(double, host_count * host_count);
133 jcomputeDurations = env->GetDoubleArrayElements(jcomputeDurations_arg, 0);
134 jmessageSizes = env->GetDoubleArrayElements(jmessageSizes_arg, 0);
136 for (index = 0; index < host_count; index++) {
137 jhost = env->GetObjectArrayElement(jhosts, index);
138 hosts[index] = jhost_get_native(env, jhost);
139 computeDurations[index] = jcomputeDurations[index];
141 for (index = 0; index < host_count * host_count; index++) {
142 messageSizes[index] = jmessageSizes[index];
145 env->ReleaseDoubleArrayElements(jcomputeDurations_arg, jcomputeDurations, 0);
146 env->ReleaseDoubleArrayElements(jmessageSizes_arg, jmessageSizes, 0);
148 /* get the C string from the java string */
149 name = env->GetStringUTFChars(jname, 0);
151 task = MSG_parallel_task_create(name, host_count, hosts, computeDurations, messageSizes, nullptr);
153 env->ReleaseStringUTFChars(jname, name);
154 /* sets the task name */
155 env->SetObjectField(jtask, jtask_field_Task_name, jname);
156 /* associate the java task object and the native task */
157 jtask_bind(jtask, task, env);
159 MSG_task_set_data(task, (void *) jtask);
161 if (!MSG_task_get_data(task))
162 jxbt_throw_jni(env, "global ref allocation failed");
165 JNIEXPORT void JNICALL Java_org_simgrid_msg_Task_cancel(JNIEnv * env, jobject jtask)
167 msg_task_t ptask = jtask_to_native_task(jtask, env);
170 jxbt_throw_notbound(env, "task", jtask);
174 msg_error_t rv = MSG_task_cancel(ptask);
176 jxbt_check_res("MSG_task_cancel()", rv, MSG_OK, bprintf("unexpected error , please report this bug"));
179 JNIEXPORT void JNICALL Java_org_simgrid_msg_Task_execute(JNIEnv * env, jobject jtask)
181 msg_task_t task = jtask_to_native_task(jtask, env);
184 jxbt_throw_notbound(env, "task", jtask);
188 rv = MSG_task_execute(task);
189 if (env->ExceptionOccurred())
192 jmsg_throw_status(env, rv);
196 JNIEXPORT void JNICALL Java_org_simgrid_msg_Task_setBound(JNIEnv * env, jobject jtask, jdouble bound)
198 msg_task_t task = jtask_to_native_task(jtask, env);
201 jxbt_throw_notbound(env, "task", jtask);
204 MSG_task_set_bound(task, bound);
207 JNIEXPORT jstring JNICALL Java_org_simgrid_msg_Task_getName(JNIEnv * env, jobject jtask) {
208 msg_task_t task = jtask_to_native_task(jtask, env);
211 jxbt_throw_notbound(env, "task", jtask);
215 return env->NewStringUTF(MSG_task_get_name(task));
218 JNIEXPORT jobject JNICALL Java_org_simgrid_msg_Task_getSender(JNIEnv * env, jobject jtask) {
219 msg_process_t process;
221 msg_task_t task = jtask_to_native_task(jtask, env);
224 jxbt_throw_notbound(env, "task", jtask);
228 process = MSG_task_get_sender(task);
229 if (process == nullptr) {
232 return (jobject) native_to_java_process(process);
235 JNIEXPORT jobject JNICALL Java_org_simgrid_msg_Task_getSource(JNIEnv * env, jobject jtask)
238 msg_task_t task = jtask_to_native_task(jtask, env);
241 jxbt_throw_notbound(env, "task", jtask);
245 host = MSG_task_get_source(task);
246 if (host == nullptr) {
249 if (!host->extension(JAVA_HOST_LEVEL)) {
250 jxbt_throw_jni(env, "MSG_task_get_source() failed");
254 return (jobject) host->extension(JAVA_HOST_LEVEL);
257 JNIEXPORT jdouble JNICALL Java_org_simgrid_msg_Task_getFlopsAmount(JNIEnv * env, jobject jtask)
259 msg_task_t ptask = jtask_to_native_task(jtask, env);
262 jxbt_throw_notbound(env, "task", jtask);
265 return (jdouble) MSG_task_get_flops_amount(ptask);
268 JNIEXPORT void JNICALL Java_org_simgrid_msg_Task_setName(JNIEnv *env, jobject jtask, jobject jname) {
269 msg_task_t task = jtask_to_native_task(jtask, env);
272 jxbt_throw_notbound(env, "task", jtask);
275 const char *name = env->GetStringUTFChars((jstring) jname, 0);
277 env->SetObjectField(jtask, jtask_field_Task_name, jname);
278 MSG_task_set_name(task, name);
280 env->ReleaseStringUTFChars((jstring) jname, name);
283 JNIEXPORT void JNICALL Java_org_simgrid_msg_Task_setPriority(JNIEnv * env, jobject jtask, jdouble priority)
285 msg_task_t task = jtask_to_native_task(jtask, env);
288 jxbt_throw_notbound(env, "task", jtask);
291 MSG_task_set_priority(task, (double) priority);
294 JNIEXPORT void JNICALL Java_org_simgrid_msg_Task_setFlopsAmount (JNIEnv *env, jobject jtask, jdouble computationAmount)
296 msg_task_t task = jtask_to_native_task(jtask, env);
299 jxbt_throw_notbound(env, "task", jtask);
302 MSG_task_set_flops_amount(task, (double) computationAmount);
305 JNIEXPORT void JNICALL Java_org_simgrid_msg_Task_setBytesAmount (JNIEnv *env, jobject jtask, jdouble dataSize)
307 msg_task_t task = jtask_to_native_task(jtask, env);
310 jxbt_throw_notbound(env, "task", jtask);
313 env->SetDoubleField(jtask, jtask_field_Task_messageSize, dataSize);
314 MSG_task_set_bytes_amount(task, (double) dataSize);
317 JNIEXPORT void JNICALL Java_org_simgrid_msg_Task_send(JNIEnv * env,jobject jtask, jstring jalias, jdouble jtimeout)
320 const char *alias = env->GetStringUTFChars(jalias, 0);
322 msg_task_t task = jtask_to_native_task(jtask, env);
325 env->ReleaseStringUTFChars(jalias, alias);
326 jxbt_throw_notbound(env, "task", jtask);
330 /* Pass a global ref to the Jtask into the Ctask so that the receiver can use it */
331 MSG_task_set_data(task, (void *) env->NewGlobalRef(jtask));
332 rv = MSG_task_send_with_timeout(task, alias, (double) jtimeout);
333 env->ReleaseStringUTFChars(jalias, alias);
336 jmsg_throw_status(env, rv);
340 JNIEXPORT void JNICALL Java_org_simgrid_msg_Task_sendBounded(JNIEnv * env,jobject jtask, jstring jalias,
341 jdouble jtimeout,jdouble maxrate)
344 const char *alias = env->GetStringUTFChars(jalias, 0);
346 msg_task_t task = jtask_to_native_task(jtask, env);
349 env->ReleaseStringUTFChars(jalias, alias);
350 jxbt_throw_notbound(env, "task", jtask);
354 /* Pass a global ref to the Jtask into the Ctask so that the receiver can use it */
355 MSG_task_set_data(task, (void *) env->NewGlobalRef(jtask));
356 rv = MSG_task_send_with_timeout_bounded(task, alias, (double) jtimeout, (double) maxrate);
357 env->ReleaseStringUTFChars(jalias, alias);
360 jmsg_throw_status(env, rv);
364 JNIEXPORT jobject JNICALL Java_org_simgrid_msg_Task_receive(JNIEnv * env, jclass cls, jstring jalias, jdouble jtimeout,
367 msg_task_t task = nullptr;
369 msg_host_t host = nullptr;
370 jobject jtask_global, jtask_local;
373 host = jhost_get_native(env, jhost);
376 jxbt_throw_notbound(env, "host", jhost);
381 const char *alias = env->GetStringUTFChars(jalias, 0);
382 msg_error_t rv = MSG_task_receive_ext(&task, alias, (double) jtimeout, host);
383 if (env->ExceptionOccurred())
386 jmsg_throw_status(env,rv);
389 jtask_global = (jobject) MSG_task_get_data(task);
391 /* Convert the global ref into a local ref so that the JVM can free the stuff */
392 jtask_local = env->NewLocalRef(jtask_global);
393 env->DeleteGlobalRef(jtask_global);
394 MSG_task_set_data(task, nullptr);
396 env->ReleaseStringUTFChars(jalias, alias);
398 return (jobject) jtask_local;
401 JNIEXPORT jobject JNICALL Java_org_simgrid_msg_Task_irecv(JNIEnv * env, jclass cls, jstring jmailbox) {
405 //pointer to store the task object pointer.
406 msg_task_t *task = xbt_new(msg_task_t,1);
408 /* There should be a cache here */
409 comm_class = env->FindClass("org/simgrid/msg/Comm");
412 jxbt_throw_native(env,bprintf("fieldID or methodID or class not found."));
416 jobject jcomm = env->NewObject(comm_class, jtask_method_Comm_constructor);
418 jxbt_throw_native(env,bprintf("Can't create a Comm object."));
422 mailbox = env->GetStringUTFChars(jmailbox, 0);
424 comm = MSG_task_irecv(task,mailbox);
426 env->SetLongField(jcomm, jtask_field_Comm_bind, (jlong) (uintptr_t)(comm));
427 env->SetLongField(jcomm, jtask_field_Comm_taskBind, (jlong) (uintptr_t)(task));
428 env->SetBooleanField(jcomm, jtask_field_Comm_receiving, JNI_TRUE);
430 env->ReleaseStringUTFChars(jmailbox, mailbox);
435 JNIEXPORT jobject JNICALL Java_org_simgrid_msg_Task_receiveBounded(JNIEnv * env, jclass cls, jstring jalias,
436 jdouble jtimeout, jobject jhost, jdouble rate)
439 msg_task_t *task = xbt_new(msg_task_t,1);
442 msg_host_t host = nullptr;
443 jobject jtask_global, jtask_local;
447 host = jhost_get_native(env, jhost);
450 jxbt_throw_notbound(env, "host", jhost);
455 alias = env->GetStringUTFChars(jalias, 0);
456 rv = MSG_task_receive_ext_bounded(task, alias, (double) jtimeout, host, (double) rate);
457 if (env->ExceptionOccurred())
460 jmsg_throw_status(env,rv);
463 jtask_global = (jobject) MSG_task_get_data(*task);
465 /* Convert the global ref into a local ref so that the JVM can free the stuff */
466 jtask_local = env->NewLocalRef(jtask_global);
467 env->DeleteGlobalRef(jtask_global);
468 MSG_task_set_data(*task, nullptr);
470 env->ReleaseStringUTFChars(jalias, alias);
474 return (jobject) jtask_local;
477 JNIEXPORT jobject JNICALL Java_org_simgrid_msg_Task_irecvBounded(JNIEnv * env, jclass cls, jstring jmailbox,
483 //pointer to store the task object pointer.
484 msg_task_t *task = xbt_new(msg_task_t,1);
486 /* There should be a cac hee */
487 comm_class = env->FindClass("org/simgrid/msg/Comm");
490 jxbt_throw_native(env,bprintf("fieldID or methodID or class not found."));
494 jobject jcomm = env->NewObject(comm_class, jtask_method_Comm_constructor);
496 jxbt_throw_native(env,bprintf("Can't create a Comm object."));
500 mailbox = env->GetStringUTFChars(jmailbox, 0);
502 comm = MSG_task_irecv_bounded(task,mailbox, (double) rate);
504 env->SetLongField(jcomm, jtask_field_Comm_bind, (jlong) (uintptr_t)(comm));
505 env->SetLongField(jcomm, jtask_field_Comm_taskBind, (jlong) (uintptr_t)(task));
506 env->SetBooleanField(jcomm, jtask_field_Comm_receiving, JNI_TRUE);
508 env->ReleaseStringUTFChars(jmailbox, mailbox);
513 JNIEXPORT jobject JNICALL Java_org_simgrid_msg_Task_isend(JNIEnv *env, jobject jtask, jstring jmailbox)
521 comm_class = env->FindClass("org/simgrid/msg/Comm");
523 if (!comm_class) return nullptr;
525 jcomm = env->NewObject(comm_class, jtask_method_Comm_constructor);
526 mailbox = env->GetStringUTFChars(jmailbox, 0);
528 task = jtask_to_native_task(jtask, env);
531 env->ReleaseStringUTFChars(jmailbox, mailbox);
532 env->DeleteLocalRef(jcomm);
533 jxbt_throw_notbound(env, "task", jtask);
537 MSG_task_set_data(task, (void *) env->NewGlobalRef(jtask));
538 comm = MSG_task_isend(task,mailbox);
540 env->SetLongField(jcomm, jtask_field_Comm_bind, (jlong) (uintptr_t)(comm));
541 env->SetLongField(jcomm, jtask_field_Comm_taskBind, (jlong) (uintptr_t)(nullptr));
542 env->SetBooleanField(jcomm, jtask_field_Comm_receiving, JNI_FALSE);
544 env->ReleaseStringUTFChars(jmailbox, mailbox);
549 JNIEXPORT jobject JNICALL Java_org_simgrid_msg_Task_isendBounded(JNIEnv *env, jobject jtask, jstring jmailbox,
558 comm_class = env->FindClass("org/simgrid/msg/Comm");
560 if (!comm_class) return nullptr;
562 jcomm = env->NewObject(comm_class, jtask_method_Comm_constructor);
563 mailbox = env->GetStringUTFChars(jmailbox, 0);
565 task = jtask_to_native_task(jtask, env);
568 env->ReleaseStringUTFChars(jmailbox, mailbox);
569 env->DeleteLocalRef(jcomm);
570 jxbt_throw_notbound(env, "task", jtask);
574 MSG_task_set_data(task, (void *) env->NewGlobalRef(jtask));
575 comm = MSG_task_isend_bounded(task,mailbox,maxrate);
577 env->SetLongField(jcomm, jtask_field_Comm_bind, (jlong) (uintptr_t)(comm));
578 env->SetLongField(jcomm, jtask_field_Comm_taskBind, (jlong) (uintptr_t)(nullptr));
579 env->SetBooleanField(jcomm, jtask_field_Comm_receiving, JNI_FALSE);
581 env->ReleaseStringUTFChars(jmailbox, mailbox);
586 JNIEXPORT void JNICALL Java_org_simgrid_msg_Task_nativeFinalize(JNIEnv * env, jobject jtask)
588 msg_task_t task = jtask_to_native_task(jtask, env);
591 jxbt_throw_notbound(env, "task", jtask);
595 MSG_task_destroy(task);
598 static void msg_task_cancel_on_failed_dsend(void*t) {
599 msg_task_t task = (msg_task_t) t;
600 JNIEnv *env =get_current_thread_env();
601 jobject jtask_global = (jobject) MSG_task_get_data(task);
603 /* Destroy the global ref so that the JVM can free the stuff */
604 env->DeleteGlobalRef(jtask_global);
605 MSG_task_set_data(task, nullptr);
606 MSG_task_destroy(task);
609 JNIEXPORT void JNICALL Java_org_simgrid_msg_Task_dsend(JNIEnv * env, jobject jtask, jstring jalias)
611 const char *alias = env->GetStringUTFChars(jalias, 0);
613 msg_task_t task = jtask_to_native_task(jtask, env);
616 env->ReleaseStringUTFChars(jalias, alias);
617 jxbt_throw_notbound(env, "task", jtask);
621 /* Pass a global ref to the Jtask into the Ctask so that the receiver can use it */
622 MSG_task_set_data(task, (void *) env->NewGlobalRef(jtask));
623 MSG_task_dsend(task, alias, msg_task_cancel_on_failed_dsend);
625 env->ReleaseStringUTFChars(jalias, alias);
628 JNIEXPORT void JNICALL Java_org_simgrid_msg_Task_dsendBounded(JNIEnv * env, jobject jtask, jstring jalias,
631 const char *alias = env->GetStringUTFChars(jalias, 0);
633 msg_task_t task = jtask_to_native_task(jtask, env);
636 env->ReleaseStringUTFChars(jalias, alias);
637 jxbt_throw_notbound(env, "task", jtask);
641 /* Pass a global ref to the Jtask into the Ctask so that the receiver can use it */
642 MSG_task_set_data(task, (void *) env->NewGlobalRef(jtask));
643 MSG_task_dsend_bounded(task, alias, msg_task_cancel_on_failed_dsend,(double)maxrate);
645 env->ReleaseStringUTFChars(jalias, alias);
648 JNIEXPORT jboolean JNICALL Java_org_simgrid_msg_Task_listen(JNIEnv * env, jclass cls, jstring jalias)
653 alias = env->GetStringUTFChars(jalias, 0);
654 rv = MSG_task_listen(alias);
655 env->ReleaseStringUTFChars(jalias, alias);
657 return (jboolean) rv;
660 JNIEXPORT jint JNICALL Java_org_simgrid_msg_Task_listenFrom(JNIEnv * env, jclass cls, jstring jalias)
663 const char *alias = env->GetStringUTFChars(jalias, 0);
664 rv = MSG_task_listen_from(alias);
665 env->ReleaseStringUTFChars(jalias, alias);