X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/a9b1128dbd610b34e13c166b2f8bffcb7ba48e4a..62dceedf62ca9df19fd3afee1458e21d9f211c5a:/src/bindings/java/jmsg.cpp diff --git a/src/bindings/java/jmsg.cpp b/src/bindings/java/jmsg.cpp index 21b56a96f4..2f1d5d75a8 100644 --- a/src/bindings/java/jmsg.cpp +++ b/src/bindings/java/jmsg.cpp @@ -1,16 +1,22 @@ /* Java Wrappers to the MSG API. */ -/* Copyright (c) 2007-2017. The SimGrid Team. All rights reserved. */ +/* Copyright (c) 2007-2020. 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 #include +#include #include +#include +#include "simgrid/Exception.hpp" #include "simgrid/msg.h" #include "simgrid/plugins/energy.h" +#include "simgrid/plugins/file_system.h" +#include "simgrid/plugins/live_migration.h" +#include "simgrid/plugins/load.h" #include "simgrid/simix.h" #include "simgrid/s4u/Host.hpp" @@ -27,7 +33,6 @@ #include "JavaContext.hpp" -#include /* Shut up some errors in eclipse online compiler. I wish such a pimple wouldn't be needed */ #ifndef JNIEXPORT @@ -38,24 +43,20 @@ #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(xbt_os_thread_get_extra_data()); - return ctx->jenv; + const JavaContext* ctx = static_cast(simgrid::kernel::context::Context::self()); + if (ctx) + return ctx->jenv_; + else + return nullptr; } void jmsg_throw_status(JNIEnv *env, msg_error_t status) { @@ -81,56 +82,56 @@ 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(); } -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(env->GetArrayLength(jargs)); + argc += static_cast(env->GetArrayLength(jargs)); + xbt_assert(argc > 0); - argc++; - char** argv = new char*[argc + 1]; - argv[0] = xbt_strdup("java"); + // Need a static storage because the XBT layer saves the arguments in xbt::binary_name and xbt::cmdline. + static std::vector args; + args.reserve(argc); - for (int index = 0; index < argc - 1; index++) { - jstring jval = (jstring)env->GetObjectArrayElement(jargs, index); + args.emplace_back("java"); + for (int index = 1; index < argc; index++) { + jstring jval = (jstring)env->GetObjectArrayElement(jargs, index - 1); const char* tmp = env->GetStringUTFChars(jval, 0); - argv[index + 1] = xbt_strdup(tmp); + args.emplace_back(tmp); env->ReleaseStringUTFChars(jval, tmp); } + + std::unique_ptr 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"); @@ -139,24 +140,29 @@ JNIEXPORT void JNICALL JNICALL Java_org_simgrid_msg_Msg_run(JNIEnv * env, jclass 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_INFO("MSG_main finished; 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); + auto const* msg_host = xbt_dynar_get_as(hosts, index, msg_host_t); jobject jhost = (jobject) msg_host->extension(JAVA_HOST_LEVEL); if (jhost) jhost_unref(env, jhost); - } xbt_dynar_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); @@ -165,7 +171,7 @@ JNIEXPORT void JNICALL Java_org_simgrid_msg_Msg_createEnvironment(JNIEnv * env, 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(); jobject jas = jnetzone_new_instance(env); @@ -183,64 +189,70 @@ JNIEXPORT jobject JNICALL Java_org_simgrid_msg_Msg_environmentGetRoutingRoot(JNI 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); 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); 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); 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); 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); 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); 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); - SIMIX_function_register_default(java_main); + simgrid_register_default(java_main); MSG_launch_application(deploymentFile); } JNIEXPORT void JNICALL Java_org_simgrid_msg_Msg_energyInit() { sg_host_energy_plugin_init(); } -} // extern "C" +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(); +} /** Run a Java org.simgrid.msg.Process * * If needed, this waits for the process starting time. @@ -253,17 +265,27 @@ static void run_jprocess(JNIEnv *env, jobject jprocess) jdouble startTime = env->GetDoubleField(jprocess, jprocess_field_Process_startTime); if (startTime > MSG_get_clock()) MSG_process_sleep(startTime - MSG_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_ATTRIB_UNUSED jint error = __java_vm->DetachCurrentThread(); + xbt_assert(error == 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(SIMIX_context_self()); + simgrid::kernel::context::JavaContext* context = + static_cast(simgrid::kernel::context::Context::self()); //Change the "." in class name for "/". std::string arg0 = argv[0]; @@ -282,23 +304,22 @@ static int java_main(int argc, char *argv[]) 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(MSG_host_self()->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 process = MSG_process_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(MSG_process_get_PID(process))); env->SetIntField(jprocess, jprocess_field_Process_ppid, static_cast(MSG_process_get_PPID(process))); jprocess_bind(jprocess, process, env); - run_jprocess(env, context->jprocess); - return 0; + run_jprocess(env, context->jprocess_); } namespace simgrid { @@ -309,10 +330,11 @@ namespace context { void java_main_jprocess(jobject jprocess) { JNIEnv *env = get_current_thread_env(); - simgrid::kernel::context::JavaContext* context = static_cast(SIMIX_context_self()); - context->jprocess = jprocess; - jprocess_bind(context->jprocess, MSG_process_self(), env); + simgrid::kernel::context::JavaContext* context = + static_cast(simgrid::kernel::context::Context::self()); + context->jprocess_ = jprocess; + jprocess_bind(context->jprocess_, MSG_process_self(), env); - run_jprocess(env, context->jprocess); + run_jprocess(env, context->jprocess_); } }}}