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");
51 xbt_assert(jtask_class_Comm && jtask_class_Task,
52 "Native initialization of msg/Comm or msg/Task failed. Please report that bug");
54 jtask_method_Comm_constructor = env->GetMethodID(jtask_class_Comm, "<init>", "()V");
55 jtask_field_Task_bind = jxbt_get_jfield(env, jtask_class_Task, "bind", "J");
56 jtask_field_Task_name = jxbt_get_jfield(env, jtask_class_Task, "name", "Ljava/lang/String;");
57 jtask_field_Task_messageSize = jxbt_get_jfield(env, jtask_class_Task, "messageSize", "D");
58 jtask_field_Comm_bind = jxbt_get_jfield(env, jtask_class_Comm, "bind", "J");
59 jtask_field_Comm_taskBind = jxbt_get_jfield(env, jtask_class_Comm, "taskBind", "J");
60 jtask_field_Comm_receiving = jxbt_get_jfield(env, jtask_class_Comm, "receiving", "Z");
61 xbt_assert(jtask_field_Task_bind && jtask_field_Comm_bind && jtask_field_Comm_taskBind &&
62 jtask_field_Comm_receiving && jtask_method_Comm_constructor,
63 "Native initialization of msg/Task failed. Please report that bug");
66 JNIEXPORT void JNICALL Java_org_simgrid_msg_Task_create(JNIEnv * env, jobject jtask, jstring jname,
67 jdouble jflopsAmount, jdouble jbytesAmount)
69 msg_task_t task; /* the native task to create */
70 const char *name = nullptr; /* the name of the task */
72 if (jflopsAmount < 0) {
73 jxbt_throw_illegal(env, bprintf("Task flopsAmount (%f) cannot be negative", static_cast<double>(jflopsAmount)));
77 if (jbytesAmount < 0) {
78 jxbt_throw_illegal(env, bprintf("Task bytesAmount (%f) cannot be negative", static_cast<double>(jbytesAmount)));
83 /* get the C string from the java string */
84 name = env->GetStringUTFChars(jname, 0);
88 task = MSG_task_create(name, static_cast<double>(jflopsAmount), static_cast<double>(jbytesAmount), nullptr);
90 env->ReleaseStringUTFChars(jname, name);
91 /* sets the task name */
92 env->SetObjectField(jtask, jtask_field_Task_name, jname);
93 /* bind & store the task */
94 jtask_bind(jtask, task, env);
95 MSG_task_set_data(task, jtask);
98 JNIEXPORT void JNICALL Java_org_simgrid_msg_Task_parallelCreate(JNIEnv * env, jobject jtask, jstring jname,
99 jobjectArray jhosts, jdoubleArray jcomputeDurations_arg,
100 jdoubleArray jmessageSizes_arg)
102 msg_task_t task; /* the native parallel task to create */
103 const char *name; /* the name of the task */
106 double *computeDurations;
107 double *messageSizes;
108 jdouble *jcomputeDurations;
109 jdouble *jmessageSizes;
113 if (!jcomputeDurations_arg) {
114 jxbt_throw_null(env, xbt_strdup("Parallel task flops amounts cannot be null"));
118 if (!jmessageSizes_arg) {
119 jxbt_throw_null(env, xbt_strdup("Parallel task bytes amounts cannot be null"));
124 jxbt_throw_null(env, xbt_strdup("Parallel task name cannot be null"));
128 host_count = static_cast<int>(env->GetArrayLength(jhosts));
130 hosts = xbt_new0(msg_host_t, host_count);
131 computeDurations = xbt_new0(double, host_count);
132 messageSizes = xbt_new0(double, host_count * host_count);
134 jcomputeDurations = env->GetDoubleArrayElements(jcomputeDurations_arg, 0);
135 jmessageSizes = env->GetDoubleArrayElements(jmessageSizes_arg, 0);
137 for (index = 0; index < host_count; index++) {
138 jhost = env->GetObjectArrayElement(jhosts, index);
139 hosts[index] = jhost_get_native(env, jhost);
140 computeDurations[index] = jcomputeDurations[index];
142 for (index = 0; index < host_count * host_count; index++) {
143 messageSizes[index] = jmessageSizes[index];
146 env->ReleaseDoubleArrayElements(jcomputeDurations_arg, jcomputeDurations, 0);
147 env->ReleaseDoubleArrayElements(jmessageSizes_arg, jmessageSizes, 0);
149 /* get the C string from the java string */
150 name = env->GetStringUTFChars(jname, 0);
152 task = MSG_parallel_task_create(name, host_count, hosts, computeDurations, messageSizes, nullptr);
154 env->ReleaseStringUTFChars(jname, name);
155 /* sets the task name */
156 env->SetObjectField(jtask, jtask_field_Task_name, jname);
157 /* associate the java task object and the native task */
158 jtask_bind(jtask, task, env);
160 MSG_task_set_data(task, (void *) jtask);
162 if (!MSG_task_get_data(task))
163 jxbt_throw_jni(env, "global ref allocation failed");
166 JNIEXPORT void JNICALL Java_org_simgrid_msg_Task_cancel(JNIEnv * env, jobject jtask)
168 msg_task_t ptask = jtask_to_native_task(jtask, env);
171 jxbt_throw_notbound(env, "task", jtask);
175 msg_error_t rv = MSG_task_cancel(ptask);
177 jxbt_check_res("MSG_task_cancel()", rv, MSG_OK, bprintf("unexpected error , please report this bug"));
180 JNIEXPORT void JNICALL Java_org_simgrid_msg_Task_execute(JNIEnv * env, jobject jtask)
182 msg_task_t task = jtask_to_native_task(jtask, env);
185 jxbt_throw_notbound(env, "task", jtask);
189 rv = MSG_task_execute(task);
190 if (env->ExceptionOccurred())
193 jmsg_throw_status(env, rv);
197 JNIEXPORT void JNICALL Java_org_simgrid_msg_Task_setBound(JNIEnv * env, jobject jtask, jdouble bound)
199 msg_task_t task = jtask_to_native_task(jtask, env);
202 jxbt_throw_notbound(env, "task", jtask);
205 MSG_task_set_bound(task, bound);
208 JNIEXPORT jstring JNICALL Java_org_simgrid_msg_Task_getName(JNIEnv * env, jobject jtask) {
209 msg_task_t task = jtask_to_native_task(jtask, env);
212 jxbt_throw_notbound(env, "task", jtask);
216 return env->NewStringUTF(MSG_task_get_name(task));
219 JNIEXPORT jobject JNICALL Java_org_simgrid_msg_Task_getSender(JNIEnv * env, jobject jtask) {
220 msg_process_t process;
222 msg_task_t task = jtask_to_native_task(jtask, env);
225 jxbt_throw_notbound(env, "task", jtask);
229 process = MSG_task_get_sender(task);
230 if (process == nullptr) {
233 return (jobject) native_to_java_process(process);
236 JNIEXPORT jobject JNICALL Java_org_simgrid_msg_Task_getSource(JNIEnv * env, jobject jtask)
239 msg_task_t task = jtask_to_native_task(jtask, env);
242 jxbt_throw_notbound(env, "task", jtask);
246 host = MSG_task_get_source(task);
247 if (host == nullptr) {
250 if (!host->extension(JAVA_HOST_LEVEL)) {
251 jxbt_throw_jni(env, "MSG_task_get_source() failed");
255 return (jobject) host->extension(JAVA_HOST_LEVEL);
258 JNIEXPORT jdouble JNICALL Java_org_simgrid_msg_Task_getFlopsAmount(JNIEnv * env, jobject jtask)
260 msg_task_t ptask = jtask_to_native_task(jtask, env);
263 jxbt_throw_notbound(env, "task", jtask);
266 return (jdouble) MSG_task_get_flops_amount(ptask);
269 JNIEXPORT void JNICALL Java_org_simgrid_msg_Task_setName(JNIEnv *env, jobject jtask, jobject jname) {
270 msg_task_t task = jtask_to_native_task(jtask, env);
273 jxbt_throw_notbound(env, "task", jtask);
276 const char *name = env->GetStringUTFChars((jstring) jname, 0);
278 env->SetObjectField(jtask, jtask_field_Task_name, jname);
279 MSG_task_set_name(task, name);
281 env->ReleaseStringUTFChars((jstring) jname, name);
284 JNIEXPORT void JNICALL Java_org_simgrid_msg_Task_setPriority(JNIEnv * env, jobject jtask, jdouble priority)
286 msg_task_t task = jtask_to_native_task(jtask, env);
289 jxbt_throw_notbound(env, "task", jtask);
292 MSG_task_set_priority(task, static_cast<double>(priority));
295 JNIEXPORT void JNICALL Java_org_simgrid_msg_Task_setFlopsAmount (JNIEnv *env, jobject jtask, jdouble computationAmount)
297 msg_task_t task = jtask_to_native_task(jtask, env);
300 jxbt_throw_notbound(env, "task", jtask);
303 MSG_task_set_flops_amount(task, static_cast<double>(computationAmount));
306 JNIEXPORT void JNICALL Java_org_simgrid_msg_Task_setBytesAmount (JNIEnv *env, jobject jtask, jdouble dataSize)
308 msg_task_t task = jtask_to_native_task(jtask, env);
311 jxbt_throw_notbound(env, "task", jtask);
314 env->SetDoubleField(jtask, jtask_field_Task_messageSize, dataSize);
315 MSG_task_set_bytes_amount(task, static_cast<double>(dataSize));
318 JNIEXPORT void JNICALL Java_org_simgrid_msg_Task_send(JNIEnv * env,jobject jtask, jstring jalias, jdouble jtimeout)
321 const char *alias = env->GetStringUTFChars(jalias, 0);
323 msg_task_t task = jtask_to_native_task(jtask, env);
326 env->ReleaseStringUTFChars(jalias, alias);
327 jxbt_throw_notbound(env, "task", jtask);
331 /* Pass a global ref to the Jtask into the Ctask so that the receiver can use it */
332 MSG_task_set_data(task, (void *) env->NewGlobalRef(jtask));
333 rv = MSG_task_send_with_timeout(task, alias, static_cast<double>(jtimeout));
334 env->ReleaseStringUTFChars(jalias, alias);
337 jmsg_throw_status(env, rv);
341 JNIEXPORT void JNICALL Java_org_simgrid_msg_Task_sendBounded(JNIEnv * env,jobject jtask, jstring jalias,
342 jdouble jtimeout,jdouble maxrate)
345 const char *alias = env->GetStringUTFChars(jalias, 0);
347 msg_task_t task = jtask_to_native_task(jtask, env);
350 env->ReleaseStringUTFChars(jalias, alias);
351 jxbt_throw_notbound(env, "task", jtask);
355 /* Pass a global ref to the Jtask into the Ctask so that the receiver can use it */
356 MSG_task_set_data(task, (void *) env->NewGlobalRef(jtask));
357 rv = MSG_task_send_with_timeout_bounded(task, alias, static_cast<double>(jtimeout), static_cast<double>(maxrate));
358 env->ReleaseStringUTFChars(jalias, alias);
361 jmsg_throw_status(env, rv);
365 JNIEXPORT jobject JNICALL Java_org_simgrid_msg_Task_receive(JNIEnv * env, jclass cls, jstring jalias, jdouble jtimeout,
368 msg_task_t task = nullptr;
369 msg_host_t host = nullptr;
372 host = jhost_get_native(env, jhost);
375 jxbt_throw_notbound(env, "host", jhost);
380 const char *alias = env->GetStringUTFChars(jalias, 0);
381 msg_error_t rv = MSG_task_receive_ext(&task, alias, (double) jtimeout, host);
382 if (env->ExceptionOccurred())
385 jmsg_throw_status(env,rv);
388 jobject jtask_global = (jobject) MSG_task_get_data(task);
390 /* Convert the global ref into a local ref so that the JVM can free the stuff */
391 jobject jtask_local = env->NewLocalRef(jtask_global);
392 env->DeleteGlobalRef(jtask_global);
393 MSG_task_set_data(task, nullptr);
395 env->ReleaseStringUTFChars(jalias, alias);
397 return (jobject) jtask_local;
400 JNIEXPORT jobject JNICALL Java_org_simgrid_msg_Task_irecv(JNIEnv * env, jclass cls, jstring jmailbox) {
401 jclass comm_class = env->FindClass("org/simgrid/msg/Comm");
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 */
410 jobject jcomm = env->NewObject(comm_class, jtask_method_Comm_constructor);
412 jxbt_throw_jni(env, "Can't create a Comm object.");
416 const char* mailbox = env->GetStringUTFChars(jmailbox, 0);
417 msg_comm_t comm = MSG_task_irecv(task, mailbox);
418 env->ReleaseStringUTFChars(jmailbox, mailbox);
420 env->SetLongField(jcomm, jtask_field_Comm_bind, (jlong) (uintptr_t)(comm));
421 env->SetLongField(jcomm, jtask_field_Comm_taskBind, (jlong) (uintptr_t)(task));
422 env->SetBooleanField(jcomm, jtask_field_Comm_receiving, JNI_TRUE);
427 JNIEXPORT jobject JNICALL Java_org_simgrid_msg_Task_receiveBounded(JNIEnv * env, jclass cls, jstring jalias,
428 jdouble jtimeout, jobject jhost, jdouble rate)
431 msg_task_t *task = xbt_new(msg_task_t,1);
434 msg_host_t host = nullptr;
437 host = jhost_get_native(env, jhost);
440 jxbt_throw_notbound(env, "host", jhost);
445 const char *alias = env->GetStringUTFChars(jalias, 0);
446 rv = MSG_task_receive_ext_bounded(task, alias, static_cast<double>(jtimeout), host, static_cast<double>(rate));
447 if (env->ExceptionOccurred())
450 jmsg_throw_status(env,rv);
453 jobject jtask_global = (jobject) MSG_task_get_data(*task);
455 /* Convert the global ref into a local ref so that the JVM can free the stuff */
456 jobject jtask_local = env->NewLocalRef(jtask_global);
457 env->DeleteGlobalRef(jtask_global);
458 MSG_task_set_data(*task, nullptr);
460 env->ReleaseStringUTFChars(jalias, alias);
464 return (jobject) jtask_local;
467 JNIEXPORT jobject JNICALL Java_org_simgrid_msg_Task_irecvBounded(JNIEnv * env, jclass cls, jstring jmailbox,
470 jclass comm_class = env->FindClass("org/simgrid/msg/Comm");
474 // pointer to store the task object pointer.
475 msg_task_t* task = xbt_new0(msg_task_t, 1);
477 jobject jcomm = env->NewObject(comm_class, jtask_method_Comm_constructor);
479 jxbt_throw_jni(env, "Can't create a Comm object.");
483 const char* mailbox = env->GetStringUTFChars(jmailbox, 0);
484 msg_comm_t comm = MSG_task_irecv_bounded(task, mailbox, static_cast<double>(rate));
485 env->ReleaseStringUTFChars(jmailbox, mailbox);
487 env->SetLongField(jcomm, jtask_field_Comm_bind, (jlong) (uintptr_t)(comm));
488 env->SetLongField(jcomm, jtask_field_Comm_taskBind, (jlong) (uintptr_t)(task));
489 env->SetBooleanField(jcomm, jtask_field_Comm_receiving, JNI_TRUE);
494 JNIEXPORT jobject JNICALL Java_org_simgrid_msg_Task_isend(JNIEnv *env, jobject jtask, jstring jmailbox)
498 jclass comm_class = env->FindClass("org/simgrid/msg/Comm");
500 if (!comm_class) return nullptr;
502 jobject jcomm = env->NewObject(comm_class, jtask_method_Comm_constructor);
503 const char* mailbox = env->GetStringUTFChars(jmailbox, 0);
505 msg_task_t task = jtask_to_native_task(jtask, env);
508 env->ReleaseStringUTFChars(jmailbox, mailbox);
509 env->DeleteLocalRef(jcomm);
510 jxbt_throw_notbound(env, "task", jtask);
514 MSG_task_set_data(task, (void *) env->NewGlobalRef(jtask));
515 comm = MSG_task_isend(task,mailbox);
517 env->SetLongField(jcomm, jtask_field_Comm_bind, (jlong) (uintptr_t)(comm));
518 env->SetLongField(jcomm, jtask_field_Comm_taskBind, (jlong) (uintptr_t)(nullptr));
519 env->SetBooleanField(jcomm, jtask_field_Comm_receiving, JNI_FALSE);
521 env->ReleaseStringUTFChars(jmailbox, mailbox);
526 JNIEXPORT jobject JNICALL Java_org_simgrid_msg_Task_isendBounded(JNIEnv *env, jobject jtask, jstring jmailbox,
534 jclass comm_class = env->FindClass("org/simgrid/msg/Comm");
538 jcomm = env->NewObject(comm_class, jtask_method_Comm_constructor);
539 mailbox = env->GetStringUTFChars(jmailbox, 0);
541 task = jtask_to_native_task(jtask, env);
544 env->ReleaseStringUTFChars(jmailbox, mailbox);
545 env->DeleteLocalRef(jcomm);
546 jxbt_throw_notbound(env, "task", jtask);
550 MSG_task_set_data(task, (void *) env->NewGlobalRef(jtask));
551 comm = MSG_task_isend_bounded(task,mailbox,maxrate);
553 env->SetLongField(jcomm, jtask_field_Comm_bind, (jlong) (uintptr_t)(comm));
554 env->SetLongField(jcomm, jtask_field_Comm_taskBind, (jlong) (uintptr_t)(nullptr));
555 env->SetBooleanField(jcomm, jtask_field_Comm_receiving, JNI_FALSE);
557 env->ReleaseStringUTFChars(jmailbox, mailbox);
562 JNIEXPORT void JNICALL Java_org_simgrid_msg_Task_nativeFinalize(JNIEnv * env, jobject jtask)
564 msg_task_t task = jtask_to_native_task(jtask, env);
567 jxbt_throw_notbound(env, "task", jtask);
571 MSG_task_destroy(task);
574 static void msg_task_cancel_on_failed_dsend(void*t) {
575 msg_task_t task = (msg_task_t) t;
576 JNIEnv *env =get_current_thread_env();
577 jobject jtask_global = (jobject) MSG_task_get_data(task);
579 /* Destroy the global ref so that the JVM can free the stuff */
580 env->DeleteGlobalRef(jtask_global);
581 MSG_task_set_data(task, nullptr);
582 MSG_task_destroy(task);
585 JNIEXPORT void JNICALL Java_org_simgrid_msg_Task_dsend(JNIEnv * env, jobject jtask, jstring jalias)
587 const char *alias = env->GetStringUTFChars(jalias, 0);
589 msg_task_t task = jtask_to_native_task(jtask, env);
592 env->ReleaseStringUTFChars(jalias, alias);
593 jxbt_throw_notbound(env, "task", jtask);
597 /* Pass a global ref to the Jtask into the Ctask so that the receiver can use it */
598 MSG_task_set_data(task, (void *) env->NewGlobalRef(jtask));
599 MSG_task_dsend(task, alias, msg_task_cancel_on_failed_dsend);
601 env->ReleaseStringUTFChars(jalias, alias);
604 JNIEXPORT void JNICALL Java_org_simgrid_msg_Task_dsendBounded(JNIEnv * env, jobject jtask, jstring jalias,
607 const char *alias = env->GetStringUTFChars(jalias, 0);
609 msg_task_t task = jtask_to_native_task(jtask, env);
612 env->ReleaseStringUTFChars(jalias, alias);
613 jxbt_throw_notbound(env, "task", jtask);
617 /* Pass a global ref to the Jtask into the Ctask so that the receiver can use it */
618 MSG_task_set_data(task, (void *) env->NewGlobalRef(jtask));
619 MSG_task_dsend_bounded(task, alias, msg_task_cancel_on_failed_dsend,static_cast<double>(maxrate));
621 env->ReleaseStringUTFChars(jalias, alias);
624 JNIEXPORT jboolean JNICALL Java_org_simgrid_msg_Task_listen(JNIEnv * env, jclass cls, jstring jalias)
626 const char *alias = env->GetStringUTFChars(jalias, 0);
627 int rv = MSG_task_listen(alias);
628 env->ReleaseStringUTFChars(jalias, alias);
630 return (jboolean) rv;
633 JNIEXPORT jint JNICALL Java_org_simgrid_msg_Task_listenFrom(JNIEnv * env, jclass cls, jstring jalias)
635 const char *alias = env->GetStringUTFChars(jalias, 0);
636 int rv = MSG_task_listen_from(alias);
637 env->ReleaseStringUTFChars(jalias, alias);