+++ /dev/null
-/* Functions related to the java task instances. */
-
-/* Copyright (c) 2007-2023. The SimGrid Team. All rights reserved. */
-
-/* This program is free software; you can redistribute it and/or modify it
- * under the terms of the license (GNU LGPL) which comes with this package. */
-
-#include "simgrid/Exception.hpp"
-#include "simgrid/s4u/Host.hpp"
-
-#include "jmsg.hpp"
-#include "jmsg_host.h"
-#include "jmsg_process.h"
-#include "jmsg_task.h"
-#include "jxbt_utilities.hpp"
-
-XBT_LOG_EXTERNAL_DEFAULT_CATEGORY(java);
-
-static jmethodID jtask_method_Comm_constructor;
-
-static jfieldID jtask_field_Task_bind;
-static jfieldID jtask_field_Task_name;
-static jfieldID jtask_field_Task_messageSize;
-static jfieldID jtask_field_Comm_bind;
-static jfieldID jtask_field_Comm_taskBind;
-static jfieldID jtask_field_Comm_receiving;
-
-void jtask_bind(jobject jtask, msg_task_t task, JNIEnv * env)
-{
- env->SetLongField(jtask, jtask_field_Task_bind, (intptr_t)task);
-}
-
-msg_task_t jtask_to_native(jobject jtask, JNIEnv* env)
-{
- return (msg_task_t)(intptr_t)env->GetLongField(jtask, jtask_field_Task_bind);
-}
-
-JNIEXPORT void JNICALL Java_org_simgrid_msg_Task_nativeInit(JNIEnv *env, jclass cls) {
- jclass jtask_class_Comm = env->FindClass("org/simgrid/msg/Comm");
- jclass jtask_class_Task = env->FindClass("org/simgrid/msg/Task");
- xbt_assert(jtask_class_Comm && jtask_class_Task,
- "Native initialization of msg/Comm or msg/Task failed. Please report that bug");
-
- jtask_method_Comm_constructor = env->GetMethodID(jtask_class_Comm, "<init>", "()V");
- jtask_field_Task_bind = jxbt_get_jfield(env, jtask_class_Task, "bind", "J");
- jtask_field_Task_name = jxbt_get_jfield(env, jtask_class_Task, "name", "Ljava/lang/String;");
- jtask_field_Task_messageSize = jxbt_get_jfield(env, jtask_class_Task, "messageSize", "D");
- jtask_field_Comm_bind = jxbt_get_jfield(env, jtask_class_Comm, "bind", "J");
- jtask_field_Comm_taskBind = jxbt_get_jfield(env, jtask_class_Comm, "taskBind", "J");
- jtask_field_Comm_receiving = jxbt_get_jfield(env, jtask_class_Comm, "receiving", "Z");
- xbt_assert(jtask_field_Task_bind && jtask_field_Comm_bind && jtask_field_Comm_taskBind &&
- jtask_field_Comm_receiving && jtask_method_Comm_constructor,
- "Native initialization of msg/Task failed. Please report that bug");
-}
-
-JNIEXPORT void JNICALL Java_org_simgrid_msg_Task_create(JNIEnv * env, jobject jtask, jstring jname,
- jdouble jflopsAmount, jdouble jbytesAmount)
-{
- jstring_wrapper task_name(env, jname);
- msg_task_t task = MSG_task_create(task_name, jflopsAmount, jbytesAmount, jtask);
-
- /* bind & store the task */
- jtask_bind(jtask, task, env);
-}
-
-JNIEXPORT void JNICALL Java_org_simgrid_msg_Task_parallelCreate(JNIEnv * env, jobject jtask, jstring jname,
- jobjectArray jhosts, jdoubleArray jcomputeDurations_arg,
- jdoubleArray jmessageSizes_arg)
-{
- int host_count = env->GetArrayLength(jhosts);
-
- jdouble* jcomputeDurations = env->GetDoubleArrayElements(jcomputeDurations_arg, nullptr);
- auto* hosts = new msg_host_t[host_count];
- auto* computeDurations = new double[host_count];
- for (int index = 0; index < host_count; index++) {
- jobject jhost = env->GetObjectArrayElement(jhosts, index);
- hosts[index] = jhost_get_native(env, jhost);
- computeDurations[index] = jcomputeDurations[index];
- }
- env->ReleaseDoubleArrayElements(jcomputeDurations_arg, jcomputeDurations, 0);
-
- jdouble* jmessageSizes = env->GetDoubleArrayElements(jmessageSizes_arg, nullptr);
- auto* messageSizes = new double[host_count * host_count];
- for (int index = 0; index < host_count * host_count; index++) {
- messageSizes[index] = jmessageSizes[index];
- }
- env->ReleaseDoubleArrayElements(jmessageSizes_arg, jmessageSizes, 0);
-
- /* get the C string from the java string */
- jstring_wrapper name(env, jname);
- msg_task_t task = MSG_parallel_task_create(name, host_count, hosts, computeDurations, messageSizes, jtask);
-
- /* associate the java task object and the native task */
- jtask_bind(jtask, task, env);
-
- delete[] hosts;
- delete[] computeDurations;
- delete[] messageSizes;
-}
-
-JNIEXPORT void JNICALL Java_org_simgrid_msg_Task_cancel(JNIEnv * env, jobject jtask)
-{
- msg_task_t ptask = jtask_to_native(jtask, env);
-
- if (not ptask) {
- jxbt_throw_notbound(env, "task", jtask);
- return;
- }
-
- msg_error_t rv = MSG_task_cancel(ptask);
- xbt_assert(rv == MSG_OK, "MSG_task_cancel() unexpectedly failed with error code %d. Please report this bug", rv);
-}
-
-JNIEXPORT void JNICALL Java_org_simgrid_msg_Task_execute(JNIEnv * env, jobject jtask)
-{
- msg_task_t task = jtask_to_native(jtask, env);
-
- if (not task) {
- jxbt_throw_notbound(env, "task", jtask);
- return;
- }
- msg_error_t rv;
- if (not simgrid::ForcefulKillException::try_n_catch([&rv, &task]() { rv = MSG_task_execute(task); })) {
- jxbt_throw_by_name(env, "org/simgrid/msg/ProcessKilledError", "Process killed");
- }
-
- if (env->ExceptionOccurred())
- return;
- if (rv != MSG_OK) {
- jmsg_throw_status(env, rv);
- }
-}
-
-JNIEXPORT void JNICALL Java_org_simgrid_msg_Task_setBound(JNIEnv * env, jobject jtask, jdouble bound)
-{
- msg_task_t task = jtask_to_native(jtask, env);
-
- if (not task) {
- jxbt_throw_notbound(env, "task", jtask);
- return;
- }
- MSG_task_set_bound(task, bound);
-}
-
-JNIEXPORT jstring JNICALL Java_org_simgrid_msg_Task_getName(JNIEnv * env, jobject jtask) {
- const_msg_task_t task = jtask_to_native(jtask, env);
-
- if (not task) {
- jxbt_throw_notbound(env, "task", jtask);
- return nullptr;
- }
-
- return env->NewStringUTF(MSG_task_get_name(task));
-}
-
-JNIEXPORT jobject JNICALL Java_org_simgrid_msg_Task_getSender(JNIEnv * env, jobject jtask) {
- const_msg_task_t task = jtask_to_native(jtask, env);
-
- if (not task) {
- jxbt_throw_notbound(env, "task", jtask);
- return nullptr;
- }
-
- auto const* process = MSG_task_get_sender(task);
- if (process == nullptr) {
- return nullptr;
- }
- return (jobject)jprocess_from_native(process);
-}
-
-JNIEXPORT jobject JNICALL Java_org_simgrid_msg_Task_getSource(JNIEnv * env, jobject jtask)
-{
- const_msg_task_t task = jtask_to_native(jtask, env);
-
- if (not task) {
- jxbt_throw_notbound(env, "task", jtask);
- return nullptr;
- }
-
- auto const* host = MSG_task_get_source(task);
- if (host == nullptr) {
- return nullptr;
- }
- if (not host->extension(JAVA_HOST_LEVEL)) {
- jxbt_throw_jni(env, "MSG_task_get_source() failed");
- return nullptr;
- }
-
- return (jobject) host->extension(JAVA_HOST_LEVEL);
-}
-
-JNIEXPORT jdouble JNICALL Java_org_simgrid_msg_Task_getFlopsAmount(JNIEnv * env, jobject jtask)
-{
- const_msg_task_t ptask = jtask_to_native(jtask, env);
-
- if (not ptask) {
- jxbt_throw_notbound(env, "task", jtask);
- return -1;
- }
- return (jdouble)MSG_task_get_flops_amount(ptask);
-}
-
-JNIEXPORT void JNICALL Java_org_simgrid_msg_Task_setName(JNIEnv *env, jobject jtask, jobject jname) {
- msg_task_t task = jtask_to_native(jtask, env);
-
- if (not task) {
- jxbt_throw_notbound(env, "task", jtask);
- return;
- }
- jstring_wrapper name(env, static_cast<jstring>(jname));
-
- env->SetObjectField(jtask, jtask_field_Task_name, jname);
- MSG_task_set_name(task, name);
-}
-
-JNIEXPORT void JNICALL Java_org_simgrid_msg_Task_setPriority(JNIEnv * env, jobject jtask, jdouble priority)
-{
- msg_task_t task = jtask_to_native(jtask, env);
-
- if (not task) {
- jxbt_throw_notbound(env, "task", jtask);
- return;
- }
- MSG_task_set_priority(task, priority);
-}
-
-JNIEXPORT void JNICALL Java_org_simgrid_msg_Task_setFlopsAmount (JNIEnv *env, jobject jtask, jdouble computationAmount)
-{
- msg_task_t task = jtask_to_native(jtask, env);
-
- if (not task) {
- jxbt_throw_notbound(env, "task", jtask);
- return;
- }
- MSG_task_set_flops_amount(task, computationAmount);
-}
-
-JNIEXPORT void JNICALL Java_org_simgrid_msg_Task_setBytesAmount (JNIEnv *env, jobject jtask, jdouble dataSize)
-{
- msg_task_t task = jtask_to_native(jtask, env);
-
- if (not task) {
- jxbt_throw_notbound(env, "task", jtask);
- return;
- }
- env->SetDoubleField(jtask, jtask_field_Task_messageSize, dataSize);
- MSG_task_set_bytes_amount(task, dataSize);
-}
-
-JNIEXPORT void JNICALL Java_org_simgrid_msg_Task_sendBounded(JNIEnv * env,jobject jtask, jstring jalias,
- jdouble jtimeout,jdouble maxrate)
-{
- msg_task_t task = jtask_to_native(jtask, env);
- if (not task) {
- jxbt_throw_notbound(env, "task", jtask);
- return;
- }
-
- /* Add a global ref into the Ctask so that the receiver can use it */
- MSG_task_set_data(task, env->NewGlobalRef(jtask));
-
- jstring_wrapper alias(env, jalias);
- msg_error_t res = MSG_task_send_with_timeout_bounded(task, alias, jtimeout, maxrate);
-
- if (res != MSG_OK)
- jmsg_throw_status(env, res);
-}
-
-JNIEXPORT jobject JNICALL Java_org_simgrid_msg_Task_receive(JNIEnv* env, jclass cls, jstring jalias, jdouble jtimeout)
-{
- msg_task_t task = nullptr;
-
- jstring_wrapper alias(env, jalias);
- msg_error_t rv;
- if (not simgrid::ForcefulKillException::try_n_catch(
- [&rv, &task, &alias, &jtimeout]() { rv = MSG_task_receive_with_timeout(&task, alias, (double)jtimeout); })) {
- jxbt_throw_by_name(env, "org/simgrid/msg/ProcessKilledError", "Process killed");
- }
- if (env->ExceptionOccurred())
- return nullptr;
- if (rv != MSG_OK) {
- jmsg_throw_status(env, rv);
- return nullptr;
- }
- auto jtask_global = (jobject)MSG_task_get_data(task);
-
- /* Convert the global ref into a local ref so that the JVM can free the stuff */
- jobject jtask_local = env->NewLocalRef(jtask_global);
- env->DeleteGlobalRef(jtask_global);
- MSG_task_set_data(task, nullptr);
-
- return (jobject) jtask_local;
-}
-
-JNIEXPORT jobject JNICALL Java_org_simgrid_msg_Task_irecv(JNIEnv * env, jclass cls, jstring jmailbox) {
- jclass comm_class = env->FindClass("org/simgrid/msg/Comm");
- if (not comm_class)
- return nullptr;
-
- //pointer to store the task object pointer.
- auto* task = new msg_task_t(nullptr);
- /* There should be a cache here */
-
- jobject jcomm = env->NewObject(comm_class, jtask_method_Comm_constructor);
- if (not jcomm) {
- jxbt_throw_jni(env, "Can't create a Comm object.");
- return nullptr;
- }
-
- jstring_wrapper mailbox(env, jmailbox);
- msg_comm_t comm = MSG_task_irecv(task, mailbox);
-
- env->SetLongField(jcomm, jtask_field_Comm_bind, (jlong) (uintptr_t)(comm));
- env->SetLongField(jcomm, jtask_field_Comm_taskBind, (jlong) (uintptr_t)(task));
- env->SetBooleanField(jcomm, jtask_field_Comm_receiving, JNI_TRUE);
-
- return jcomm;
-}
-
-JNIEXPORT jobject JNICALL Java_org_simgrid_msg_Task_receiveBounded(JNIEnv* env, jclass cls, jstring jalias,
- jdouble jtimeout, jdouble rate)
-{
- msg_task_t task = nullptr;
-
- jstring_wrapper alias(env, jalias);
- msg_error_t res = MSG_task_receive_with_timeout_bounded(&task, alias, jtimeout, rate);
- if (env->ExceptionOccurred())
- return nullptr;
- if (res != MSG_OK) {
- jmsg_throw_status(env, res);
- return nullptr;
- }
- auto jtask_global = (jobject)MSG_task_get_data(task);
-
- /* Convert the global ref into a local ref so that the JVM can free the stuff */
- jobject jtask_local = env->NewLocalRef(jtask_global);
- env->DeleteGlobalRef(jtask_global);
- MSG_task_set_data(task, nullptr);
-
- return (jobject) jtask_local;
-}
-
-JNIEXPORT jobject JNICALL Java_org_simgrid_msg_Task_irecvBounded(JNIEnv * env, jclass cls, jstring jmailbox,
- jdouble rate)
-{
- jclass comm_class = env->FindClass("org/simgrid/msg/Comm");
- if (not comm_class)
- return nullptr;
-
- // pointer to store the task object pointer.
- auto* task = new msg_task_t(nullptr);
-
- jobject jcomm = env->NewObject(comm_class, jtask_method_Comm_constructor);
- if (not jcomm) {
- jxbt_throw_jni(env, "Can't create a Comm object.");
- return nullptr;
- }
-
- jstring_wrapper mailbox(env, jmailbox);
- msg_comm_t comm = MSG_task_irecv_bounded(task, mailbox, rate);
-
- env->SetLongField(jcomm, jtask_field_Comm_bind, (jlong) (uintptr_t)(comm));
- env->SetLongField(jcomm, jtask_field_Comm_taskBind, (jlong) (uintptr_t)(task));
- env->SetBooleanField(jcomm, jtask_field_Comm_receiving, JNI_TRUE);
-
- return jcomm;
-}
-
-JNIEXPORT jobject JNICALL Java_org_simgrid_msg_Task_isend(JNIEnv *env, jobject jtask, jstring jmailbox)
-{
- msg_comm_t comm;
-
- jclass comm_class = env->FindClass("org/simgrid/msg/Comm");
-
- if (not comm_class)
- return nullptr;
-
- jobject jcomm = env->NewObject(comm_class, jtask_method_Comm_constructor);
- jstring_wrapper mailbox(env, jmailbox);
-
- msg_task_t task = jtask_to_native(jtask, env);
-
- if (not task) {
- env->DeleteLocalRef(jcomm);
- jxbt_throw_notbound(env, "task", jtask);
- return nullptr;
- }
-
- MSG_task_set_data(task, env->NewGlobalRef(jtask));
- comm = MSG_task_isend(task,mailbox);
-
- env->SetLongField(jcomm, jtask_field_Comm_bind, (jlong) (uintptr_t)(comm));
- env->SetLongField(jcomm, jtask_field_Comm_taskBind, (jlong) (uintptr_t)(nullptr));
- env->SetBooleanField(jcomm, jtask_field_Comm_receiving, JNI_FALSE);
-
- return jcomm;
-}
-
-JNIEXPORT jobject JNICALL Java_org_simgrid_msg_Task_isendBounded(JNIEnv *env, jobject jtask, jstring jmailbox,
- jdouble maxrate)
-{
- msg_task_t task;
- jobject jcomm;
- msg_comm_t comm;
-
- jclass comm_class = env->FindClass("org/simgrid/msg/Comm");
- if (not comm_class)
- return nullptr;
-
- jcomm = env->NewObject(comm_class, jtask_method_Comm_constructor);
- jstring_wrapper mailbox(env, jmailbox);
-
- task = jtask_to_native(jtask, env);
-
- if (not task) {
- env->DeleteLocalRef(jcomm);
- jxbt_throw_notbound(env, "task", jtask);
- return nullptr;
- }
-
- MSG_task_set_data(task, env->NewGlobalRef(jtask));
- comm = MSG_task_isend_bounded(task,mailbox,maxrate);
-
- env->SetLongField(jcomm, jtask_field_Comm_bind, (jlong) (uintptr_t)(comm));
- env->SetLongField(jcomm, jtask_field_Comm_taskBind, (jlong) (uintptr_t)(nullptr));
- env->SetBooleanField(jcomm, jtask_field_Comm_receiving, JNI_FALSE);
-
- return jcomm;
-}
-
-JNIEXPORT void JNICALL Java_org_simgrid_msg_Task_nativeFinalize(JNIEnv * env, jobject jtask)
-{
- msg_task_t task = jtask_to_native(jtask, env);
-
- if (not task) {
- jxbt_throw_notbound(env, "task", jtask);
- return;
- }
-
- MSG_task_destroy(task);
-}
-
-static void msg_task_cancel_on_failed_dsend(void*t) {
- auto task = (msg_task_t)t;
- JNIEnv* env = get_current_thread_env();
- if (env) {
- auto jtask_global = (jobject)MSG_task_get_data(task);
- /* Destroy the global ref so that the JVM can free the stuff */
- env->DeleteGlobalRef(jtask_global);
- /* Don't free the C data here, to avoid a race condition with the GC also sometimes doing so.
- * A rare memleak is seen as preferable to a rare "free(): invalid pointer" failure that
- * proves really hard to debug.
- */
- }
- MSG_task_set_data(task, nullptr);
-}
-
-JNIEXPORT void JNICALL Java_org_simgrid_msg_Task_dsend(JNIEnv * env, jobject jtask, jstring jalias)
-{
- jstring_wrapper alias(env, jalias);
-
- msg_task_t task = jtask_to_native(jtask, env);
-
- if (not task) {
- jxbt_throw_notbound(env, "task", jtask);
- return;
- }
-
- /* Pass a global ref to the Jtask into the Ctask so that the receiver can use it */
- MSG_task_set_data(task, env->NewGlobalRef(jtask));
- MSG_task_dsend(task, alias, msg_task_cancel_on_failed_dsend);
-}
-
-JNIEXPORT void JNICALL Java_org_simgrid_msg_Task_dsendBounded(JNIEnv * env, jobject jtask, jstring jalias,
- jdouble maxrate)
-{
- jstring_wrapper alias(env, jalias);
-
- msg_task_t task = jtask_to_native(jtask, env);
-
- if (not task) {
- jxbt_throw_notbound(env, "task", jtask);
- return;
- }
-
- /* Pass a global ref to the Jtask into the Ctask so that the receiver can use it */
- MSG_task_set_data(task, env->NewGlobalRef(jtask));
- MSG_task_dsend_bounded(task, alias, msg_task_cancel_on_failed_dsend, maxrate);
-}
-
-JNIEXPORT jboolean JNICALL Java_org_simgrid_msg_Task_listen(JNIEnv * env, jclass cls, jstring jalias)
-{
- jstring_wrapper alias(env, jalias);
- return (jboolean)MSG_task_listen(alias);
-}
-
-JNIEXPORT jint JNICALL Java_org_simgrid_msg_Task_listenFrom(JNIEnv * env, jclass cls, jstring jalias)
-{
- jstring_wrapper alias(env, jalias);
- return (jint)MSG_task_listen_from(alias);
-}
