/* Functions related to the Virtual Machines. */
-/* Copyright (c) 2012-2018. The SimGrid Team. All rights reserved. */
+/* 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/plugins/vm/VirtualMachineImpl.hpp"
-#include "xbt/ex.hpp"
+#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, msg_vm_t vm)
+void jvm_bind(JNIEnv* env, jobject jvm, sg_vm_t vm)
{
env->SetLongField(jvm, jvm_field_bind, (intptr_t)vm);
}
-msg_vm_t jvm_get_native(JNIEnv *env, jobject jvm)
+sg_vm_t jvm_get_native(JNIEnv* env, jobject jvm)
{
- return (msg_vm_t)(intptr_t)env->GetLongField(jvm, jvm_field_bind);
+ 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)
xbt_assert(jvm_field_bind, "Native initialization of msg/VM failed. Please report that bug");
}
-JNIEXPORT jint JNICALL Java_org_simgrid_msg_VM_isCreated(JNIEnv * env, jobject jvm)
+JNIEXPORT jboolean JNICALL Java_org_simgrid_msg_VM_isCreated(JNIEnv* env, jobject jvm)
{
- msg_vm_t vm = jvm_get_native(env,jvm);
- return MSG_vm_is_created(vm);
+ const_sg_vm_t vm = jvm_get_native(env, jvm);
+ return sg_vm_is_created(vm);
}
-JNIEXPORT jint JNICALL Java_org_simgrid_msg_VM_isRunning(JNIEnv * env, jobject jvm)
+JNIEXPORT jboolean JNICALL Java_org_simgrid_msg_VM_isRunning(JNIEnv* env, jobject jvm)
{
- msg_vm_t vm = jvm_get_native(env,jvm);
- return (jint) MSG_vm_is_running(vm);
+ const_sg_vm_t vm = jvm_get_native(env, jvm);
+ return sg_vm_is_running(vm);
}
-JNIEXPORT jint JNICALL Java_org_simgrid_msg_VM_isMigrating(JNIEnv * env, jobject jvm)
+JNIEXPORT jboolean JNICALL Java_org_simgrid_msg_VM_isMigrating(JNIEnv* env, jobject jvm)
{
- msg_vm_t vm = jvm_get_native(env,jvm);
- return (jint) MSG_vm_is_migrating(vm);
+ const_sg_vm_t vm = jvm_get_native(env, jvm);
+ return sg_vm_is_migrating(vm);
}
-JNIEXPORT jint JNICALL Java_org_simgrid_msg_VM_isSuspended(JNIEnv * env, jobject jvm)
+JNIEXPORT jboolean JNICALL Java_org_simgrid_msg_VM_isSuspended(JNIEnv* env, jobject jvm)
{
- msg_vm_t vm = jvm_get_native(env,jvm);
- return (jint) MSG_vm_is_suspended(vm);
+ 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)
{
- msg_vm_t vm = jvm_get_native(env,jvm);
- MSG_vm_set_bound(vm, 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)
{
- msg_host_t host = jhost_get_native(env, jHost);
+ sg_host_t host = jhost_get_native(env, jHost);
- const char* name = env->GetStringUTFChars(jname, 0);
- msg_vm_t vm = MSG_vm_create_migratable(host, name, static_cast<int>(coreAmount), static_cast<int>(jramsize),
- static_cast<int>(jmig_netspeed), static_cast<int>(jdp_intensity));
- env->ReleaseStringUTFChars(jname, name);
+ 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, (void*)jVm);
+ vm->extension_set(JAVA_HOST_LEVEL, jVm);
}
JNIEXPORT jobjectArray JNICALL Java_org_simgrid_msg_VM_all(JNIEnv* env, jclass cls_arg)
{
- xbt_dynar_t hosts = MSG_hosts_as_dynar();
+ sg_host_t* hosts = sg_host_list();
+ size_t host_count = sg_host_count();
std::vector<jobject> vms;
- unsigned int it;
- msg_host_t h;
- xbt_dynar_foreach (hosts, it, h) {
- simgrid::s4u::VirtualMachine* vm = dynamic_cast<simgrid::s4u::VirtualMachine*>(h);
- if (vm != nullptr && vm->get_state() != simgrid::s4u::VirtualMachine::state::DESTROYED) {
- jobject jvm = static_cast<jobject>(vm->extension(JAVA_HOST_LEVEL));
+ 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_dynar_free(&hosts);
+ xbt_free(hosts);
vms.shrink_to_fit();
int count = vms.size();
JNIEXPORT void JNICALL Java_org_simgrid_msg_VM_nativeFinalize(JNIEnv *env, jobject jvm)
{
- msg_vm_t vm = jvm_get_native(env,jvm);
- MSG_vm_destroy(vm);
+ 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)
{
- msg_vm_t vm = jvm_get_native(env,jvm);
- MSG_vm_start(vm);
+ 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)
{
- msg_vm_t vm = jvm_get_native(env,jvm);
+ sg_vm_t vm = jvm_get_native(env, jvm);
if (vm)
- MSG_vm_shutdown(vm);
+ sg_vm_shutdown(vm);
}
JNIEXPORT void JNICALL Java_org_simgrid_msg_VM_destroy(JNIEnv* env, jobject jvm)
{
- msg_vm_t vm = jvm_get_native(env, jvm);
+ sg_vm_t vm = jvm_get_native(env, jvm);
if (vm) {
- MSG_vm_destroy(vm);
- auto* vmList = &simgrid::vm::VirtualMachineImpl::allVms_;
+ 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)
{
- msg_vm_t vm = jvm_get_native(env,jvm);
- msg_host_t host = jhost_get_native(env, jhost);
- try {
- MSG_vm_migrate(vm,host);
- }
- catch(xbt_ex& e){
- XBT_VERB("CATCH EXCEPTION MIGRATION %s",e.what());
- jxbt_throw_host_failure(env, (char*)"during migration");
+ 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)
{
- msg_vm_t vm = jvm_get_native(env,jvm);
- MSG_vm_suspend(vm);
+ 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)
{
- msg_vm_t vm = jvm_get_native(env,jvm);
- MSG_vm_resume(vm);
+ 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;
}
- const char* name = env->GetStringUTFChars(jname, 0);
+ jstring_wrapper name(env, jname);
/* get the VM by name (VMs are just special hosts, unfortunately) */
- msg_host_t host = MSG_host_by_name(name);
+ auto const* host = sg_host_by_name(name);
if (not host) { /* invalid name */
jxbt_throw_host_not_found(env, name);
- env->ReleaseStringUTFChars(jname, name);
return nullptr;
}
- env->ReleaseStringUTFChars(jname, name);
return static_cast<jobject>(host->extension(JAVA_HOST_LEVEL));
}
