+++ /dev/null
-/* Functions related to the java host 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/plugins/energy.h"
-#include "simgrid/plugins/load.h"
-#include "simgrid/s4u/Host.hpp"
-
-#include "JavaContext.hpp"
-#include "jmsg.hpp"
-#include "jmsg_host.h"
-#include "jxbt_utilities.hpp"
-
-XBT_LOG_EXTERNAL_DEFAULT_CATEGORY(java);
-
-static jmethodID jhost_method_Host_constructor;
-static jfieldID jhost_field_Host_bind;
-static jfieldID jhost_field_Host_name;
-
-jobject jhost_new_instance(JNIEnv * env) {
- jclass cls = jxbt_get_class(env, "org/simgrid/msg/Host");
- return env->NewObject(cls, jhost_method_Host_constructor);
-}
-
-jobject jhost_ref(JNIEnv * env, jobject jhost) {
- return env->NewGlobalRef(jhost);
-}
-
-void jhost_unref(JNIEnv * env, jobject jhost) {
- env->DeleteGlobalRef(jhost);
-}
-
-void jhost_bind(jobject jhost, msg_host_t host, JNIEnv * env) {
- env->SetLongField(jhost, jhost_field_Host_bind, (jlong) (uintptr_t) (host));
-}
-
-msg_host_t jhost_get_native(JNIEnv * env, jobject jhost) {
- return (msg_host_t) (uintptr_t) env->GetLongField(jhost, jhost_field_Host_bind);
-}
-
-JNIEXPORT void JNICALL Java_org_simgrid_msg_Host_nativeInit(JNIEnv *env, jclass cls) {
- jclass class_Host = env->FindClass("org/simgrid/msg/Host");
- jhost_method_Host_constructor = env->GetMethodID(class_Host, "<init>", "()V");
- jhost_field_Host_bind = jxbt_get_jfield(env,class_Host, "bind", "J");
- jhost_field_Host_name = jxbt_get_jfield(env, class_Host, "name", "Ljava/lang/String;");
- xbt_assert(class_Host && jhost_field_Host_name && jhost_method_Host_constructor && jhost_field_Host_bind,
- "Native initialization of msg/Host failed. Please report that bug");
-}
-
-JNIEXPORT jobject JNICALL Java_org_simgrid_msg_Host_getByName(JNIEnv* env, jclass cls, jstring jname)
-{
- /* get the C string from the java string */
- if (jname == nullptr) {
- jxbt_throw_null(env, "No host can have a null name");
- return nullptr;
- }
- jstring_wrapper name(env, jname);
- /* get the host by name (the hosts are created during the grid resolution) */
- sg_host_t host = sg_host_by_name(name);
-
- if (not host) { /* invalid name */
- jxbt_throw_host_not_found(env, name);
- return nullptr;
- }
-
- if (not host->extension(JAVA_HOST_LEVEL)) { /* native host not associated yet with java host */
- /* Instantiate a new java host */
- jobject jhost = jhost_new_instance(env);
-
- if (not jhost) {
- jxbt_throw_jni(env, "java host instantiation failed");
- return nullptr;
- }
-
- /* get a global reference to the newly created host */
- jhost = jhost_ref(env, jhost);
-
- if (not jhost) {
- jxbt_throw_jni(env, "new global ref allocation failed");
- return nullptr;
- }
- /* Sets the java host name */
- env->SetObjectField(jhost, jhost_field_Host_name, jname);
- /* bind the java host and the native host */
- jhost_bind(jhost, host, env);
-
- /* the native host data field is set with the global reference to the java host returned by this function */
- host->extension_set(JAVA_HOST_LEVEL, jhost);
- }
-
- /* return the global reference to the java host instance */
- return (jobject) host->extension(JAVA_HOST_LEVEL);
-}
-
-JNIEXPORT jobject JNICALL Java_org_simgrid_msg_Host_currentHost(JNIEnv * env, jclass cls) {
- jobject jhost;
-
- sg_host_t host = sg_host_self();
-
- if (not host->extension(JAVA_HOST_LEVEL)) {
- /* the native host not yet associated with the java host instance */
-
- /* instantiate a new java host instance */
- jhost = jhost_new_instance(env);
-
- if (not jhost) {
- jxbt_throw_jni(env, "java host instantiation failed");
- return nullptr;
- }
-
- /* get a global reference to the newly created host */
- jhost = jhost_ref(env, jhost);
-
- if (not jhost) {
- jxbt_throw_jni(env, "global ref allocation failed");
- return nullptr;
- }
- /* Sets the host name */
- jobject jname = env->NewStringUTF(host->get_cname());
- env->SetObjectField(jhost, jhost_field_Host_name, jname);
- /* Bind & store it */
- jhost_bind(jhost, host, env);
- host->extension_set(JAVA_HOST_LEVEL, jhost);
- } else {
- jhost = (jobject) host->extension(JAVA_HOST_LEVEL);
- }
-
- return jhost;
-}
-
-JNIEXPORT void JNICALL Java_org_simgrid_msg_Host_on(JNIEnv *env, jobject jhost) {
- sg_host_t host = jhost_get_native(env, jhost);
- sg_host_turn_on(host);
-}
-
-JNIEXPORT void JNICALL Java_org_simgrid_msg_Host_off(JNIEnv *env, jobject jhost) {
- sg_host_t host = jhost_get_native(env, jhost);
- if (not simgrid::ForcefulKillException::try_n_catch([host]() { sg_host_turn_off(host); }))
- jxbt_throw_by_name(env, "org/simgrid/msg/ProcessKilledError", "Host turned off");
-}
-
-JNIEXPORT jint JNICALL Java_org_simgrid_msg_Host_getCount(JNIEnv * env, jclass cls) {
- return (jint)sg_host_count();
-}
-
-JNIEXPORT jdouble JNICALL Java_org_simgrid_msg_Host_getSpeed(JNIEnv * env, jobject jhost) {
- const_sg_host_t host = jhost_get_native(env, jhost);
-
- if (not host) {
- jxbt_throw_notbound(env, "host", jhost);
- return -1;
- }
-
- return (jdouble)sg_host_get_speed(host);
-}
-
-JNIEXPORT jdouble JNICALL Java_org_simgrid_msg_Host_getCoreNumber(JNIEnv * env, jobject jhost) {
- const_sg_host_t host = jhost_get_native(env, jhost);
-
- if (not host) {
- jxbt_throw_notbound(env, "host", jhost);
- return -1;
- }
-
- return (jdouble)sg_host_core_count(host);
-}
-
-JNIEXPORT jobject JNICALL Java_org_simgrid_msg_Host_getProperty(JNIEnv *env, jobject jhost, jobject jname) {
- const_sg_host_t host = jhost_get_native(env, jhost);
-
- if (not host) {
- jxbt_throw_notbound(env, "host", jhost);
- return nullptr;
- }
- jstring_wrapper name(env, (jstring)jname);
-
- const char* property = sg_host_get_property_value(host, name);
- if (not property) {
- return nullptr;
- }
-
- jobject jproperty = env->NewStringUTF(property);
-
- return jproperty;
-}
-
-JNIEXPORT void JNICALL
-Java_org_simgrid_msg_Host_setProperty(JNIEnv *env, jobject jhost, jobject jname, jobject jvalue) {
- sg_host_t host = jhost_get_native(env, jhost);
-
- if (not host) {
- jxbt_throw_notbound(env, "host", jhost);
- return;
- }
- jstring_wrapper name(env, (jstring)jname);
- jstring_wrapper value_java(env, (jstring)jvalue);
- const char* value = xbt_strdup(value_java);
-
- sg_host_set_property_value(host, name, value);
-}
-
-JNIEXPORT jboolean JNICALL Java_org_simgrid_msg_Host_isOn(JNIEnv * env, jobject jhost)
-{
- const_sg_host_t host = jhost_get_native(env, jhost);
-
- if (not host) {
- jxbt_throw_notbound(env, "host", jhost);
- return 0;
- }
-
- return (jboolean)sg_host_is_on(host);
-}
-
-JNIEXPORT jobjectArray JNICALL Java_org_simgrid_msg_Host_all(JNIEnv * env, jclass cls_arg)
-{
- sg_host_t* table = sg_host_list();
- int count = sg_host_count();
-
- jclass cls = jxbt_get_class(env, "org/simgrid/msg/Host");
- if (not cls)
- return nullptr;
-
- jobjectArray jtable = env->NewObjectArray((jsize)count, cls, nullptr);
-
- if (not jtable) {
- jxbt_throw_jni(env, "Hosts table allocation failed");
- return nullptr;
- }
-
- for (int index = 0; index < count; index++) {
- auto jhost = static_cast<jobject>(table[index]->extension(JAVA_HOST_LEVEL));
-
- if (not jhost) {
- jstring jname = env->NewStringUTF(table[index]->get_cname());
- jhost = Java_org_simgrid_msg_Host_getByName(env, cls_arg, jname);
- }
-
- env->SetObjectArrayElement(jtable, index, jhost);
- }
- xbt_free(table);
- return jtable;
-}
-
-JNIEXPORT void JNICALL Java_org_simgrid_msg_Host_setAsyncMailbox(JNIEnv * env, jclass cls_arg, jobject jname)
-{
- jstring_wrapper name(env, (jstring)jname);
- sg_mailbox_set_receiver(name);
-}
-
-JNIEXPORT void JNICALL Java_org_simgrid_msg_Host_updateAllEnergyConsumptions(JNIEnv* env, jclass cls)
-{
- sg_host_energy_update_all();
-}
-
-JNIEXPORT jdouble JNICALL Java_org_simgrid_msg_Host_getConsumedEnergy (JNIEnv *env, jobject jhost)
-{
- const_sg_host_t host = jhost_get_native(env, jhost);
-
- if (not host) {
- jxbt_throw_notbound(env, "host", jhost);
- return 0;
- }
-
- return sg_host_get_consumed_energy(host);
-}
-
-JNIEXPORT void JNICALL Java_org_simgrid_msg_Host_setPstate(JNIEnv* env, jobject jhost, jint pstate)
-{
- sg_host_t host = jhost_get_native(env, jhost);
- sg_host_set_pstate(host, pstate);
-}
-JNIEXPORT jint JNICALL Java_org_simgrid_msg_Host_getPstate(JNIEnv* env, jobject jhost)
-{
- const_sg_host_t host = jhost_get_native(env, jhost);
- return sg_host_get_pstate(host);
-}
-JNIEXPORT jint JNICALL Java_org_simgrid_msg_Host_getPstatesCount(JNIEnv* env, jobject jhost)
-{
- const_sg_host_t host = jhost_get_native(env, jhost);
- return sg_host_get_nb_pstates(host);
-}
-JNIEXPORT jdouble JNICALL Java_org_simgrid_msg_Host_getCurrentPowerPeak(JNIEnv* env, jobject jhost)
-{
- const_sg_host_t host = jhost_get_native(env, jhost);
- return sg_host_get_speed(host);
-}
-JNIEXPORT jdouble JNICALL Java_org_simgrid_msg_Host_getPowerPeakAt(JNIEnv* env, jobject jhost, jint pstate)
-{
- const_sg_host_t host = jhost_get_native(env, jhost);
- return sg_host_get_pstate_speed(host, pstate);
-}
-
-JNIEXPORT jdouble JNICALL Java_org_simgrid_msg_Host_getLoad(JNIEnv* env, jobject jhost)
-{
- const_sg_host_t host = jhost_get_native(env, jhost);
- return sg_host_get_load(host);
-}
-
-JNIEXPORT jdouble JNICALL Java_org_simgrid_msg_Host_getCurrentLoad (JNIEnv *env, jobject jhost)
-{
- const_sg_host_t host = jhost_get_native(env, jhost);
-
- if (not host) {
- jxbt_throw_notbound(env, "host", jhost);
- return 0;
- }
-
- return sg_host_get_current_load(host);
-}
-
-JNIEXPORT jdouble JNICALL Java_org_simgrid_msg_Host_getComputedFlops (JNIEnv *env, jobject jhost)
-{
- const_sg_host_t host = jhost_get_native(env, jhost);
-
- if (not host) {
- jxbt_throw_notbound(env, "host", jhost);
- return 0;
- }
-
- return sg_host_get_computed_flops(host);
-}
-
-JNIEXPORT jdouble JNICALL Java_org_simgrid_msg_Host_getAvgLoad (JNIEnv *env, jobject jhost)
-{
- const_sg_host_t host = jhost_get_native(env, jhost);
-
- if (not host) {
- jxbt_throw_notbound(env, "host", jhost);
- return 0;
- }
-
- return sg_host_get_avg_load(host);
-}
