+++ /dev/null
-/* Functions related to the java process instances. */
-
-/* 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 "jmsg_process.h"
-
-#include "JavaContext.hpp"
-#include "jmsg.hpp"
-#include "jmsg_host.h"
-#include "jxbt_utilities.hpp"
-#include "simgrid/Exception.hpp"
-#include "simgrid/s4u/Actor.hpp"
-#include "src/kernel/actor/ActorImpl.hpp"
-
-XBT_LOG_EXTERNAL_DEFAULT_CATEGORY(java);
-
-jfieldID jprocess_field_Process_bind;
-jfieldID jprocess_field_Process_host;
-jfieldID jprocess_field_Process_killTime;
-jfieldID jprocess_field_Process_name;
-jfieldID jprocess_field_Process_pid;
-jfieldID jprocess_field_Process_ppid;
-
-jobject jprocess_from_native(const_sg_actor_t actor)
-{
- const simgrid::kernel::context::JavaContext* context =
- static_cast<simgrid::kernel::context::JavaContext*>(actor->get_impl()->context_.get());
- return context->jprocess_;
-}
-
-jobject jprocess_ref(jobject jprocess, JNIEnv* env)
-{
- return env->NewGlobalRef(jprocess);
-}
-
-void jprocess_unref(jobject jprocess, JNIEnv* env)
-{
- env->DeleteGlobalRef(jprocess);
-}
-
-sg_actor_t jprocess_to_native(jobject jprocess, JNIEnv* env)
-{
- return (sg_actor_t)(intptr_t)env->GetLongField(jprocess, jprocess_field_Process_bind);
-}
-
-void jprocess_bind(jobject jprocess, const_sg_actor_t actor, JNIEnv* env)
-{
- env->SetLongField(jprocess, jprocess_field_Process_bind, (intptr_t)actor);
-}
-
-JNIEXPORT void JNICALL Java_org_simgrid_msg_Process_nativeInit(JNIEnv *env, jclass cls) {
- jclass jprocess_class_Process = env->FindClass("org/simgrid/msg/Process");
- xbt_assert(jprocess_class_Process, "Native initialization of msg/Process failed. Please report that bug");
-
- jprocess_field_Process_name = jxbt_get_jfield(env, jprocess_class_Process, "name", "Ljava/lang/String;");
- jprocess_field_Process_bind = jxbt_get_jfield(env, jprocess_class_Process, "bind", "J");
- jprocess_field_Process_pid = jxbt_get_jfield(env, jprocess_class_Process, "pid", "I");
- jprocess_field_Process_ppid = jxbt_get_jfield(env, jprocess_class_Process, "ppid", "I");
- jprocess_field_Process_host = jxbt_get_jfield(env, jprocess_class_Process, "host", "Lorg/simgrid/msg/Host;");
- jprocess_field_Process_killTime = jxbt_get_jfield(env, jprocess_class_Process, "killTime", "D");
- xbt_assert(jprocess_field_Process_name && jprocess_field_Process_pid && jprocess_field_Process_ppid &&
- jprocess_field_Process_host,
- "Native initialization of msg/Process failed. Please report that bug");
-}
-
-JNIEXPORT void JNICALL Java_org_simgrid_msg_Process_create(JNIEnv* env, jobject jprocess_arg, jobject jhost)
-{
- /* create a global java process instance */
- jobject jprocess = jprocess_ref(jprocess_arg, env);
-
- /* Actually build the MSG process */
- auto jname = (jstring)env->GetObjectField(jprocess, jprocess_field_Process_name);
- const char* name = env->GetStringUTFChars(jname, nullptr);
- auto actor_code = [jprocess]() { simgrid::kernel::context::java_main_jprocess(jprocess); };
- auto self = simgrid::kernel::actor::ActorImpl::self();
- sg_host_t host = jhost_get_native(env, jhost);
- smx_actor_t actor = simgrid::kernel::actor::simcall([name, actor_code, host, self] {
- return simgrid::kernel::actor::ActorImpl::create(std::move(name), std::move(actor_code), nullptr, host, self).get();
- });
- sg_actor_yield();
-
- env->ReleaseStringUTFChars(jname, name);
-
- /* Retrieve the kill time from the actor */
- actor->get_ciface()->set_kill_time((double)env->GetDoubleField(jprocess, jprocess_field_Process_killTime));
-
- /* sets the PID and the PPID of the actor */
- env->SetIntField(jprocess, jprocess_field_Process_pid, (jint)actor->get_ciface()->get_pid());
- env->SetIntField(jprocess, jprocess_field_Process_ppid, (jint)actor->get_ciface()->get_ppid());
-}
-
-JNIEXPORT void JNICALL Java_org_simgrid_msg_Process_daemonize(JNIEnv* env, jobject jprocess)
-{
- sg_actor_t actor = jprocess_to_native(jprocess, env);
-
- if (not actor) {
- jxbt_throw_notbound(env, "process", jprocess);
- return;
- }
-
- actor->daemonize();
-}
-
-JNIEXPORT void JNICALL Java_org_simgrid_msg_Process_killAll(JNIEnv* env, jclass cls)
-{
- sg_actor_kill_all();
-}
-
-JNIEXPORT jobject JNICALL Java_org_simgrid_msg_Process_fromPID(JNIEnv * env, jclass cls, jint pid)
-{
- auto const* actor = sg_actor_by_pid(pid);
-
- if (not actor) {
- jxbt_throw_process_not_found(env, std::string("PID = ") + std::to_string(static_cast<int>(pid)));
- return nullptr;
- }
-
- jobject jprocess = jprocess_from_native(actor);
-
- if (not jprocess) {
- jxbt_throw_jni(env, "get process failed");
- return nullptr;
- }
-
- return jprocess;
-}
-
-JNIEXPORT jint JNICALL Java_org_simgrid_msg_Process_nativeGetPID(JNIEnv* env, jobject jprocess)
-{
- const_sg_actor_t actor = jprocess_to_native(jprocess, env);
- return sg_actor_get_pid(actor);
-}
-
-JNIEXPORT jobject JNICALL Java_org_simgrid_msg_Process_getProperty(JNIEnv *env, jobject jprocess, jobject jname) {
- const_sg_actor_t actor = jprocess_to_native(jprocess, env);
-
- if (not actor) {
- jxbt_throw_notbound(env, "process", jprocess);
- return nullptr;
- }
- jstring_wrapper name(env, (jstring)jname);
-
- const char* property = actor->get_property(name);
- if (not property)
- return nullptr;
-
- jobject jproperty = env->NewStringUTF(property);
-
- return jproperty;
-}
-
-JNIEXPORT jobject JNICALL Java_org_simgrid_msg_Process_getCurrentProcess(JNIEnv * env, jclass cls)
-{
- jobject jprocess = jprocess_from_native(sg_actor_self());
- if (not jprocess)
- jxbt_throw_jni(env, xbt_strdup("SIMIX_process_get_jprocess() failed"));
-
- return jprocess;
-}
-
-JNIEXPORT void JNICALL Java_org_simgrid_msg_Process_suspend(JNIEnv * env, jobject jprocess)
-{
- sg_actor_t actor = jprocess_to_native(jprocess, env);
-
- if (not actor) {
- jxbt_throw_notbound(env, "process", jprocess);
- return;
- }
-
- /* suspend the process */
- actor->suspend();
-}
-
-JNIEXPORT void JNICALL Java_org_simgrid_msg_Process_resume(JNIEnv * env, jobject jprocess)
-{
- sg_actor_t actor = jprocess_to_native(jprocess, env);
-
- if (not actor) {
- jxbt_throw_notbound(env, "process", jprocess);
- return;
- }
-
- /* resume the process */
- actor->resume();
-}
-
-JNIEXPORT void JNICALL Java_org_simgrid_msg_Process_setAutoRestart(JNIEnv* env, jobject jprocess,
- jboolean jauto_restart)
-{
- sg_actor_t actor = jprocess_to_native(jprocess, env);
- if (not actor) {
- jxbt_throw_notbound(env, "process", jprocess);
- return;
- }
-
- actor->set_auto_restart(jauto_restart == JNI_TRUE);
-}
-
-JNIEXPORT void JNICALL Java_org_simgrid_msg_Process_restart (JNIEnv *env, jobject jprocess) {
- sg_actor_t actor = jprocess_to_native(jprocess, env);
-
- if (not actor) {
- jxbt_throw_notbound(env, "process", jprocess);
- return;
- }
-
- actor->restart();
-}
-
-JNIEXPORT jboolean JNICALL Java_org_simgrid_msg_Process_isSuspended(JNIEnv * env, jobject jprocess)
-{
- sg_actor_t actor = jprocess_to_native(jprocess, env);
-
- if (not actor) {
- jxbt_throw_notbound(env, "process", jprocess);
- return 0;
- }
-
- /* true is the actor is suspended, false otherwise */
- return (jboolean)actor->is_suspended();
-}
-
-JNIEXPORT void JNICALL Java_org_simgrid_msg_Process_sleep(JNIEnv *env, jclass cls, jlong jmillis, jint jnanos)
- {
- double time = ((double)jmillis) / 1000 + ((double)jnanos) / 1000000000;
- msg_error_t rv = MSG_OK;
- if (not simgrid::ForcefulKillException::try_n_catch([&time]() { simgrid::s4u::this_actor::sleep_for(time); })) {
- rv = MSG_HOST_FAILURE;
- }
- if (rv != MSG_OK) {
- jmsg_throw_status(env, rv);
- }
-}
-
-JNIEXPORT void JNICALL Java_org_simgrid_msg_Process_waitFor(JNIEnv * env, jobject jprocess, jdouble jseconds)
-{
- msg_error_t rv = MSG_OK;
- if (not simgrid::ForcefulKillException::try_n_catch(
- [&jseconds]() { simgrid::s4u::this_actor::sleep_for((double)jseconds); })) {
- rv = MSG_HOST_FAILURE;
- jxbt_throw_by_name(env, "org/simgrid/msg/ProcessKilledError", "Process killed");
- }
- if (env->ExceptionOccurred())
- return;
- if (rv != MSG_OK) {
- XBT_DEBUG("Status NOK");
- jmsg_throw_status(env,rv);
- }
-}
-
-JNIEXPORT void JNICALL Java_org_simgrid_msg_Process_kill(JNIEnv * env, jobject jprocess)
-{
- /* get the native instances from the java ones */
- sg_actor_t actor = jprocess_to_native(jprocess, env);
- if (not actor) {
- jxbt_throw_notbound(env, "process", jprocess);
- return;
- }
- if (not simgrid::ForcefulKillException::try_n_catch([&actor]() { actor->kill(); })) {
- jxbt_throw_by_name(env, "org/simgrid/msg/ProcessKilledError", "Process killed");
- }
-}
-
-JNIEXPORT void JNICALL Java_org_simgrid_msg_Process_migrate(JNIEnv * env, jobject jprocess, jobject jhost)
-{
- sg_actor_t actor = jprocess_to_native(jprocess, env);
-
- if (not actor) {
- jxbt_throw_notbound(env, "process", jprocess);
- return;
- }
-
- sg_host_t host = jhost_get_native(env, jhost);
-
- if (not host) {
- jxbt_throw_notbound(env, "host", jhost);
- return;
- }
-
- /* change the host of the actor */
- actor->set_host(host);
-
- /* change the host java side */
- env->SetObjectField(jprocess, jprocess_field_Process_host, jhost);
-}
-
-JNIEXPORT void JNICALL Java_org_simgrid_msg_Process_yield(JNIEnv* env, jclass cls)
-{
- simgrid::s4u::this_actor::yield();
-}
-
-JNIEXPORT void JNICALL Java_org_simgrid_msg_Process_setKillTime (JNIEnv *env , jobject jprocess, jdouble jkilltime) {
- jprocess_to_native(jprocess, env)->set_kill_time((double)jkilltime);
-}
-
-JNIEXPORT jint JNICALL Java_org_simgrid_msg_Process_getCount(JNIEnv * env, jclass cls) {
- return (jint)sg_actor_count();
-}
