-/* Java Wrappers to the MSG API. */
-
-/* Copyright (c) 2007-2017. The SimGrid Team. All rights reserved. */
+/* Copyright (c) 2007-2021. 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 <algorithm>
#include <clocale>
+#include <memory>
#include <string>
+#include <vector>
-#include "simgrid/msg.h"
+#include "simgrid/Exception.hpp"
#include "simgrid/plugins/energy.h"
#include "simgrid/plugins/file_system.h"
-#include "simgrid/simix.h"
+#include "simgrid/plugins/live_migration.h"
+#include "simgrid/plugins/load.h"
+#include "simgrid/s4u/Actor.hpp"
#include "simgrid/s4u/Host.hpp"
-#include "src/simix/smx_private.hpp"
-
#include "jmsg.hpp"
#include "jmsg_as.hpp"
#include "jmsg_host.h"
#include "jmsg_process.h"
-#include "jmsg_storage.h"
#include "jmsg_task.h"
#include "jxbt_utilities.hpp"
#include "JavaContext.hpp"
-#include <xbt/ex.hpp>
-
/* Shut up some errors in eclipse online compiler. I wish such a pimple wouldn't be needed */
#ifndef JNIEXPORT
#define JNIEXPORT
#endif
/* end of eclipse-mandated pimple */
-extern "C" {
-
int JAVA_HOST_LEVEL = -1;
XBT_LOG_EXTERNAL_DEFAULT_CATEGORY(java);
JavaVM *__java_vm = nullptr;
-JavaVM *get_java_VM()
-{
- return __java_vm;
-}
-
JNIEnv *get_current_thread_env()
{
using simgrid::kernel::context::JavaContext;
- JavaContext* ctx = static_cast<JavaContext*>(xbt_os_thread_get_extra_data());
- return ctx->jenv;
+ const JavaContext* ctx = static_cast<JavaContext*>(simgrid::kernel::context::Context::self());
+ if (ctx)
+ return ctx->jenv_;
+ else
+ return nullptr;
}
void jmsg_throw_status(JNIEnv *env, msg_error_t status) {
* Unsortable functions *
***************************************************************************************/
-JNIEXPORT jdouble JNICALL Java_org_simgrid_msg_Msg_getClock(JNIEnv * env, jclass cls)
+JNIEXPORT jdouble JNICALL Java_org_simgrid_msg_Msg_getClock(JNIEnv*, jclass)
{
- return (jdouble) MSG_get_clock();
+ return (jdouble)simgrid_get_clock();
}
-JNIEXPORT void JNICALL Java_org_simgrid_msg_Msg_init(JNIEnv * env, jclass cls, jobjectArray jargs)
+JNIEXPORT void JNICALL Java_org_simgrid_msg_Msg_init(JNIEnv* env, jclass, jobjectArray jargs)
{
- int argc = 0;
-
- XBT_LOG_CONNECT(java);
- XBT_LOG_CONNECT(jtrace);
-
env->GetJavaVM(&__java_vm);
simgrid::kernel::context::factory_initializer = &simgrid::kernel::context::java_factory;
- jthrowable exc = env->ExceptionOccurred();
+ const _jthrowable* exc = env->ExceptionOccurred();
if (exc) {
env->ExceptionClear();
}
setlocale(LC_NUMERIC,"C");
+ int argc = 1;
if (jargs)
- argc = static_cast<int>(env->GetArrayLength(jargs));
-
- argc++;
- char** argv = new char*[argc + 1];
- argv[0] = xbt_strdup("java");
-
- for (int index = 0; index < argc - 1; index++) {
- jstring jval = (jstring)env->GetObjectArrayElement(jargs, index);
- const char* tmp = env->GetStringUTFChars(jval, 0);
- argv[index + 1] = xbt_strdup(tmp);
+ argc += static_cast<int>(env->GetArrayLength(jargs));
+ xbt_assert(argc > 0);
+
+ // Need a static storage because the XBT layer saves the arguments in xbt::binary_name and xbt::cmdline.
+ static std::vector<std::string> args;
+ args.reserve(argc);
+
+ args.emplace_back("java");
+ for (int index = 1; index < argc; index++) {
+ auto jval = (jstring)env->GetObjectArrayElement(jargs, index - 1);
+ const char* tmp = env->GetStringUTFChars(jval, nullptr);
+ args.emplace_back(tmp);
env->ReleaseStringUTFChars(jval, tmp);
}
+
+ std::unique_ptr<char* []> argv(new char*[argc + 1]);
+ std::transform(begin(args), end(args), argv.get(), [](std::string& s) { return &s.front(); });
argv[argc] = nullptr;
- MSG_init(&argc, argv);
+ int argc2 = argc;
+ MSG_init(&argc2, argv.get());
+ xbt_assert(argc2 <= argc);
- JAVA_HOST_LEVEL = simgrid::s4u::Host::extension_create(nullptr);
+ for (int index = 1; index < argc2; index++)
+ env->SetObjectArrayElement(jargs, index - 1, (jstring)env->NewStringUTF(argv[index]));
- for (int index = 0; index < argc - 1; index++) {
- env->SetObjectArrayElement(jargs, index, (jstring)env->NewStringUTF(argv[index + 1]));
- free(argv[index]);
- }
- free(argv[argc]);
- delete[] argv;
+ sg_vm_live_migration_plugin_init();
+ JAVA_HOST_LEVEL = simgrid::s4u::Host::extension_create(nullptr);
}
-JNIEXPORT void JNICALL JNICALL Java_org_simgrid_msg_Msg_run(JNIEnv * env, jclass cls)
+JNIEXPORT void JNICALL JNICALL Java_org_simgrid_msg_Msg_run(JNIEnv* env, jclass)
{
/* Run everything */
- XBT_DEBUG("Ready to run MSG_MAIN");
- msg_error_t rv = MSG_main();
- XBT_DEBUG("Done running MSG_MAIN");
- jxbt_check_res("MSG_main()", rv, MSG_OK,
- xbt_strdup("unexpected error : MSG_main() failed .. please report this bug "));
-
- XBT_INFO("MSG_main finished; Cleaning up the simulation...");
+ XBT_DEBUG("Ready to run");
+ simgrid_run();
+ XBT_DEBUG("Done running");
+ XBT_INFO("Terminating the simulation...");
/* Cleanup java hosts */
- xbt_dynar_t hosts = MSG_hosts_as_dynar();
- for (unsigned long index = 0; index < xbt_dynar_length(hosts) - 1; index++) {
- msg_host_t msg_host = xbt_dynar_get_as(hosts,index,msg_host_t);
- jobject jhost = (jobject) msg_host->extension(JAVA_HOST_LEVEL);
+ sg_host_t* hosts = sg_host_list();
+ size_t host_count = sg_host_count();
+ for (size_t index = 0; index < host_count - 1; index++) {
+ auto jhost = (jobject)hosts[index]->extension(JAVA_HOST_LEVEL);
if (jhost)
jhost_unref(env, jhost);
-
}
- xbt_dynar_free(&hosts);
+ xbt_free(hosts);
- /* Cleanup java storages */
- for (auto const& elm : java_storage_map)
- jstorage_unref(env, elm.second);
+ /* Display the status of remaining threads. None should survive, but who knows */
+ jclass clsProcess = jxbt_get_class(env, "org/simgrid/msg/Process");
+ jmethodID idDebug = jxbt_get_static_jmethod(env, clsProcess, "debugAllThreads", "()V");
+ xbt_assert(idDebug != nullptr, "Method Process.debugAllThreads() not found...");
+ env->CallStaticVoidMethod(clsProcess, idDebug);
}
-JNIEXPORT void JNICALL Java_org_simgrid_msg_Msg_createEnvironment(JNIEnv * env, jclass cls, jstring jplatformFile)
+JNIEXPORT void JNICALL Java_org_simgrid_msg_Msg_createEnvironment(JNIEnv* env, jclass, jstring jplatformFile)
{
- const char *platformFile = env->GetStringUTFChars(jplatformFile, 0);
+ const char* platformFile = env->GetStringUTFChars(jplatformFile, nullptr);
- MSG_create_environment(platformFile);
+ simgrid_load_platform(platformFile);
env->ReleaseStringUTFChars(jplatformFile, platformFile);
}
-JNIEXPORT jobject JNICALL Java_org_simgrid_msg_Msg_environmentGetRoutingRoot(JNIEnv * env, jclass cls)
+JNIEXPORT jobject JNICALL Java_org_simgrid_msg_Msg_environmentGetRoutingRoot(JNIEnv* env, jclass)
{
- msg_netzone_t as = MSG_zone_get_root();
+ sg_netzone_t as = sg_zone_get_root();
jobject jas = jnetzone_new_instance(env);
if (not jas) {
jxbt_throw_jni(env, "java As instantiation failed");
return (jobject) jas;
}
-JNIEXPORT void JNICALL Java_org_simgrid_msg_Msg_debug(JNIEnv * env, jclass cls, jstring js)
+JNIEXPORT void JNICALL Java_org_simgrid_msg_Msg_debug(JNIEnv* env, jclass, jstring js)
{
- const char *s = env->GetStringUTFChars(js, 0);
+ const char* s = env->GetStringUTFChars(js, nullptr);
XBT_DEBUG("%s", s);
env->ReleaseStringUTFChars(js, s);
}
-JNIEXPORT void JNICALL Java_org_simgrid_msg_Msg_verb(JNIEnv * env, jclass cls, jstring js)
+JNIEXPORT void JNICALL Java_org_simgrid_msg_Msg_verb(JNIEnv* env, jclass, jstring js)
{
- const char *s = env->GetStringUTFChars(js, 0);
+ const char* s = env->GetStringUTFChars(js, nullptr);
XBT_VERB("%s", s);
env->ReleaseStringUTFChars(js, s);
}
-JNIEXPORT void JNICALL Java_org_simgrid_msg_Msg_info(JNIEnv * env, jclass cls, jstring js)
+JNIEXPORT void JNICALL Java_org_simgrid_msg_Msg_info(JNIEnv* env, jclass, jstring js)
{
- const char *s = env->GetStringUTFChars(js, 0);
+ const char* s = env->GetStringUTFChars(js, nullptr);
XBT_INFO("%s", s);
env->ReleaseStringUTFChars(js, s);
}
-JNIEXPORT void JNICALL Java_org_simgrid_msg_Msg_warn(JNIEnv * env, jclass cls, jstring js)
+JNIEXPORT void JNICALL Java_org_simgrid_msg_Msg_warn(JNIEnv* env, jclass, jstring js)
{
- const char *s = env->GetStringUTFChars(js, 0);
+ const char* s = env->GetStringUTFChars(js, nullptr);
XBT_WARN("%s", s);
env->ReleaseStringUTFChars(js, s);
}
-JNIEXPORT void JNICALL Java_org_simgrid_msg_Msg_error(JNIEnv * env, jclass cls, jstring js)
+JNIEXPORT void JNICALL Java_org_simgrid_msg_Msg_error(JNIEnv* env, jclass, jstring js)
{
- const char *s = env->GetStringUTFChars(js, 0);
+ const char* s = env->GetStringUTFChars(js, nullptr);
XBT_ERROR("%s", s);
env->ReleaseStringUTFChars(js, s);
}
-JNIEXPORT void JNICALL Java_org_simgrid_msg_Msg_critical(JNIEnv * env, jclass cls, jstring js)
+JNIEXPORT void JNICALL Java_org_simgrid_msg_Msg_critical(JNIEnv* env, jclass, jstring js)
{
- const char *s = env->GetStringUTFChars(js, 0);
+ const char* s = env->GetStringUTFChars(js, nullptr);
XBT_CRITICAL("%s", s);
env->ReleaseStringUTFChars(js, s);
}
-static int java_main(int argc, char *argv[]);
+static void java_main(int argc, char* argv[]);
-JNIEXPORT void JNICALL
-Java_org_simgrid_msg_Msg_deployApplication(JNIEnv * env, jclass cls, jstring jdeploymentFile)
+JNIEXPORT void JNICALL Java_org_simgrid_msg_Msg_deployApplication(JNIEnv* env, jclass, jstring jdeploymentFile)
{
- const char *deploymentFile = env->GetStringUTFChars(jdeploymentFile, 0);
+ const char* deploymentFile = env->GetStringUTFChars(jdeploymentFile, nullptr);
- SIMIX_function_register_default(java_main);
- MSG_launch_application(deploymentFile);
+ simgrid_register_default(java_main);
+ simgrid_load_deployment(deploymentFile);
}
JNIEXPORT void JNICALL Java_org_simgrid_msg_Msg_energyInit() {
sg_host_energy_plugin_init();
}
-JNIEXPORT void JNICALL Java_org_simgrid_msg_Msg_fileSystemInit()
-{
- sg_storage_file_system_init();
+JNIEXPORT void JNICALL Java_org_simgrid_msg_Msg_loadInit() {
+ sg_host_load_plugin_init();
}
-} // extern "C"
-
/** Run a Java org.simgrid.msg.Process
*
* If needed, this waits for the process starting time.
// wait for the process's start time
jfieldID jprocess_field_Process_startTime = jxbt_get_sfield(env, "org/simgrid/msg/Process", "startTime", "D");
jdouble startTime = env->GetDoubleField(jprocess, jprocess_field_Process_startTime);
- if (startTime > MSG_get_clock())
- MSG_process_sleep(startTime - MSG_get_clock());
+ if (startTime > simgrid_get_clock())
+ simgrid::s4u::this_actor::sleep_for(startTime - simgrid_get_clock());
+
//Execution of the "run" method.
jmethodID id = jxbt_get_smethod(env, "org/simgrid/msg/Process", "run", "()V");
- xbt_assert((id != nullptr), "Method run() not found...");
+ xbt_assert((id != nullptr), "Method Process.run() not found...");
+
env->CallVoidMethod(jprocess, id);
+ if (env->ExceptionOccurred()) {
+ XBT_DEBUG("Something went wrong in this Java actor, forget about it.");
+ env->ExceptionClear();
+ xbt_assert(__java_vm->DetachCurrentThread() == JNI_OK, "Cannot detach failing thread");
+ simgrid::ForcefulKillException::do_throw();
+ }
}
/** Create a Java org.simgrid.msg.Process with the arguments and run it */
-static int java_main(int argc, char *argv[])
+static void java_main(int argc, char* argv[])
{
JNIEnv *env = get_current_thread_env();
- simgrid::kernel::context::JavaContext* context = static_cast<simgrid::kernel::context::JavaContext*>(SIMIX_context_self());
+ auto* context = static_cast<simgrid::kernel::context::JavaContext*>(simgrid::kernel::context::Context::self());
//Change the "." in class name for "/".
std::string arg0 = argv[0];
//Retrieve the name of the process.
jstring jname = env->NewStringUTF(argv[0]);
//Build the arguments
- jobjectArray args = static_cast<jobjectArray>(env->NewObjectArray(argc - 1, env->FindClass("java/lang/String"),
- env->NewStringUTF("")));
+ auto args = static_cast<jobjectArray>(
+ env->NewObjectArray(argc - 1, env->FindClass("java/lang/String"), env->NewStringUTF("")));
for (int i = 1; i < argc; i++)
env->SetObjectArrayElement(args,i - 1, env->NewStringUTF(argv[i]));
//Retrieve the host for the process.
- jstring jhostName = env->NewStringUTF(MSG_host_self()->getCname());
+ jstring jhostName = env->NewStringUTF(simgrid::s4u::Host::current()->get_cname());
jobject jhost = Java_org_simgrid_msg_Host_getByName(env, nullptr, jhostName);
//creates the process
jobject jprocess = env->NewObject(class_Process, constructor_Process, jhost, jname, args);
xbt_assert((jprocess != nullptr), "Process allocation failed.");
jprocess = env->NewGlobalRef(jprocess);
//bind the process to the context
- msg_process_t process = MSG_process_self();
+ const_sg_actor_t actor = sg_actor_self();
- context->jprocess = jprocess;
+ context->jprocess_ = jprocess;
/* sets the PID and the PPID of the process */
- env->SetIntField(jprocess, jprocess_field_Process_pid, static_cast<jint>(MSG_process_get_PID(process)));
- env->SetIntField(jprocess, jprocess_field_Process_ppid, static_cast<jint>(MSG_process_get_PPID(process)));
- jprocess_bind(jprocess, process, env);
+ env->SetIntField(jprocess, jprocess_field_Process_pid, static_cast<jint>(actor->get_pid()));
+ env->SetIntField(jprocess, jprocess_field_Process_ppid, static_cast<jint>(actor->get_ppid()));
+ jprocess_bind(jprocess, actor, env);
- run_jprocess(env, context->jprocess);
- return 0;
+ run_jprocess(env, context->jprocess_);
}
namespace simgrid {
void java_main_jprocess(jobject jprocess)
{
JNIEnv *env = get_current_thread_env();
- simgrid::kernel::context::JavaContext* context = static_cast<simgrid::kernel::context::JavaContext*>(SIMIX_context_self());
- context->jprocess = jprocess;
- jprocess_bind(context->jprocess, MSG_process_self(), env);
+ auto* context = static_cast<JavaContext*>(Context::self());
+ context->jprocess_ = jprocess;
+ jprocess_bind(context->jprocess_, sg_actor_self(), env);
- run_jprocess(env, context->jprocess);
+ run_jprocess(env, context->jprocess_);
}
-}}}
+} // namespace context
+} // namespace kernel
+} // namespace simgrid
