+++ /dev/null
-/* Functions related to the Virtual Machines. */
-
-/* Copyright (c) 2012-2023. 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 "jmsg_vm.h"
-#include "jmsg_host.h"
-#include "jxbt_utilities.hpp"
-#include "simgrid/Exception.hpp"
-#include "simgrid/plugins/live_migration.h"
-#include "src/kernel/resource/VirtualMachineImpl.hpp"
-
-XBT_LOG_EXTERNAL_DEFAULT_CATEGORY(java);
-
-extern int JAVA_HOST_LEVEL;
-static jfieldID jvm_field_bind;
-
-void jvm_bind(JNIEnv* env, jobject jvm, sg_vm_t vm)
-{
- env->SetLongField(jvm, jvm_field_bind, (intptr_t)vm);
-}
-
-sg_vm_t jvm_get_native(JNIEnv* env, jobject jvm)
-{
- return (sg_vm_t)(intptr_t)env->GetLongField(jvm, jvm_field_bind);
-}
-
-JNIEXPORT void JNICALL Java_org_simgrid_msg_VM_nativeInit(JNIEnv *env, jclass cls)
-{
- jclass jprocess_class_VM = env->FindClass("org/simgrid/msg/VM");
- jvm_field_bind = jxbt_get_jfield(env, jprocess_class_VM, "bind", "J");
- xbt_assert(jvm_field_bind, "Native initialization of msg/VM failed. Please report that bug");
-}
-
-JNIEXPORT jboolean JNICALL Java_org_simgrid_msg_VM_isCreated(JNIEnv* env, jobject jvm)
-{
- const_sg_vm_t vm = jvm_get_native(env, jvm);
- return sg_vm_is_created(vm);
-}
-
-JNIEXPORT jboolean JNICALL Java_org_simgrid_msg_VM_isRunning(JNIEnv* env, jobject jvm)
-{
- const_sg_vm_t vm = jvm_get_native(env, jvm);
- return sg_vm_is_running(vm);
-}
-
-JNIEXPORT jboolean JNICALL Java_org_simgrid_msg_VM_isMigrating(JNIEnv* env, jobject jvm)
-{
- const_sg_vm_t vm = jvm_get_native(env, jvm);
- return sg_vm_is_migrating(vm);
-}
-
-JNIEXPORT jboolean JNICALL Java_org_simgrid_msg_VM_isSuspended(JNIEnv* env, jobject jvm)
-{
- const_sg_vm_t vm = jvm_get_native(env, jvm);
- return sg_vm_is_suspended(vm);
-}
-
-JNIEXPORT void JNICALL Java_org_simgrid_msg_VM_setBound(JNIEnv *env, jobject jvm, jdouble bound)
-{
- sg_vm_t vm = jvm_get_native(env, jvm);
- sg_vm_set_bound(vm, bound);
-}
-
-JNIEXPORT void JNICALL Java_org_simgrid_msg_VM_create(JNIEnv* env, jobject jVm, jobject jHost, jstring jname,
- jint coreAmount, jint jramsize, jint jmig_netspeed,
- jint jdp_intensity)
-{
- sg_host_t host = jhost_get_native(env, jHost);
-
- jstring_wrapper name(env, jname);
- sg_vm_t vm = sg_vm_create_migratable(host, name, static_cast<int>(coreAmount), static_cast<int>(jramsize),
- static_cast<int>(jmig_netspeed), static_cast<int>(jdp_intensity));
-
- jvm_bind(env, jVm, vm);
- jVm = env->NewGlobalRef(jVm);
- // We use the extension level of the host, even if that's somehow disturbing
- vm->extension_set(JAVA_HOST_LEVEL, jVm);
-}
-
-JNIEXPORT jobjectArray JNICALL Java_org_simgrid_msg_VM_all(JNIEnv* env, jclass cls_arg)
-{
- sg_host_t* hosts = sg_host_list();
- size_t host_count = sg_host_count();
- std::vector<jobject> vms;
-
- for (size_t i = 0; i < host_count; i++) {
- const auto* vm = dynamic_cast<simgrid::s4u::VirtualMachine*>(hosts[i]);
- if (vm != nullptr && vm->get_state() != simgrid::s4u::VirtualMachine::State::DESTROYED) {
- auto jvm = static_cast<jobject>(vm->extension(JAVA_HOST_LEVEL));
- vms.push_back(jvm);
- }
- }
- xbt_free(hosts);
-
- vms.shrink_to_fit();
- int count = vms.size();
-
- jclass cls = jxbt_get_class(env, "org/simgrid/msg/VM");
- 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++) {
- jobject jhost = vms.at(index);
- env->SetObjectArrayElement(jtable, index, jhost);
- }
- return jtable;
-}
-
-JNIEXPORT void JNICALL Java_org_simgrid_msg_VM_nativeFinalize(JNIEnv *env, jobject jvm)
-{
- sg_vm_t vm = jvm_get_native(env, jvm);
- sg_vm_destroy(vm);
-}
-
-JNIEXPORT void JNICALL Java_org_simgrid_msg_VM_start(JNIEnv *env, jobject jvm)
-{
- sg_vm_t vm = jvm_get_native(env, jvm);
- sg_vm_start(vm);
-}
-
-JNIEXPORT void JNICALL Java_org_simgrid_msg_VM_shutdown(JNIEnv *env, jobject jvm)
-{
- sg_vm_t vm = jvm_get_native(env, jvm);
- if (vm)
- sg_vm_shutdown(vm);
-}
-
-JNIEXPORT void JNICALL Java_org_simgrid_msg_VM_destroy(JNIEnv* env, jobject jvm)
-{
- sg_vm_t vm = jvm_get_native(env, jvm);
- if (vm) {
- sg_vm_destroy(vm);
- auto* vmList = &simgrid::kernel::resource::VirtualMachineImpl::allVms_;
- vmList->erase(std::remove(vmList->begin(), vmList->end(), vm), vmList->end());
- }
-}
-
-JNIEXPORT void JNICALL Java_org_simgrid_msg_VM_nativeMigration(JNIEnv* env, jobject jvm, jobject jhost)
-{
- sg_vm_t vm = jvm_get_native(env, jvm);
- sg_host_t host = jhost_get_native(env, jhost);
- if (not simgrid::ForcefulKillException::try_n_catch([&vm, &host]() { sg_vm_migrate(vm, host); })) {
- XBT_VERB("Caught exception during migration");
- jxbt_throw_host_failure(env, " during migration");
- }
-}
-
-JNIEXPORT void JNICALL Java_org_simgrid_msg_VM_suspend(JNIEnv *env, jobject jvm)
-{
- sg_vm_t vm = jvm_get_native(env, jvm);
- sg_vm_suspend(vm);
-}
-
-JNIEXPORT void JNICALL Java_org_simgrid_msg_VM_resume(JNIEnv *env, jobject jvm)
-{
- sg_vm_t vm = jvm_get_native(env, jvm);
- sg_vm_resume(vm);
-}
-
-JNIEXPORT jobject JNICALL Java_org_simgrid_msg_VM_getVMByName(JNIEnv* env, jclass cls, jstring jname)
-{
- /* get the C string from the java string */
- if (jname == nullptr) {
- jxbt_throw_null(env, "No VM can have a null name");
- return nullptr;
- }
- jstring_wrapper name(env, jname);
- /* get the VM by name (VMs are just special hosts, unfortunately) */
- auto const* host = sg_host_by_name(name);
-
- if (not host) { /* invalid name */
- jxbt_throw_host_not_found(env, name);
- return nullptr;
- }
-
- return static_cast<jobject>(host->extension(JAVA_HOST_LEVEL));
-}
