+++ /dev/null
-/* Functions related to the java process instances. */
-
-/* Copyright (c) 2007-2015. 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 "jmsg.h"
-#include "jmsg_host.h"
-#include "jxbt_utilities.h"
-#include "smx_context_java.h"
-
-XBT_LOG_EXTERNAL_DEFAULT_CATEGORY(jmsg);
-
-jfieldID jprocess_field_Process_bind;
-jfieldID jprocess_field_Process_host;
-jfieldID jprocess_field_Process_killTime;
-jfieldID jprocess_field_Process_id;
-jfieldID jprocess_field_Process_name;
-jfieldID jprocess_field_Process_pid;
-jfieldID jprocess_field_Process_ppid;
-
-JNIEXPORT void JNICALL
-Java_org_simgrid_msg_Process_exit(JNIEnv *env, jobject jprocess) {
-
-}
-
-jobject native_to_java_process(msg_process_t process)
-{
- return ((smx_ctx_java_t)MSG_process_get_smx_ctx(process))->jprocess;
-}
-
-jobject jprocess_new_global_ref(jobject jprocess, JNIEnv * env)
-{
- return (*env)->NewGlobalRef(env, jprocess);
-}
-
-void jprocess_delete_global_ref(jobject jprocess, JNIEnv * env)
-{
- (*env)->DeleteGlobalRef(env, jprocess);
-}
-
-void jprocess_join(jobject jprocess, JNIEnv * env)
-{
- msg_process_t process = jprocess_to_native_process(jprocess,env);
- smx_ctx_java_t context = (smx_ctx_java_t)MSG_process_get_smx_ctx(process);
- xbt_os_thread_join(context->thread,NULL);
-}
-
-msg_process_t jprocess_to_native_process(jobject jprocess, JNIEnv * env)
-{
- return
- (msg_process_t)(intptr_t)(*env)->GetLongField(env, jprocess,
- jprocess_field_Process_bind);
-}
-
-void jprocess_bind(jobject jprocess, msg_process_t process, JNIEnv * env)
-{
- (*env)->SetLongField(env, jprocess, jprocess_field_Process_bind,
- (intptr_t)process);
-}
-
-jlong jprocess_get_id(jobject jprocess, JNIEnv * env)
-{
- return
- (intptr_t)(*env)->GetLongField(env, jprocess, jprocess_field_Process_id);
-}
-
-jstring jprocess_get_name(jobject jprocess, JNIEnv * env)
-{
- jstring jname = (jstring) (*env)->GetObjectField(env, jprocess, jprocess_field_Process_name);
- return (*env)->NewGlobalRef(env, jname);
-
-}
-
-jboolean jprocess_is_valid(jobject jprocess, JNIEnv * env)
-{
- jfieldID id = jxbt_get_sfield(env, "org/simgrid/msg/Process", "bind", "J");
-
- if (!id)
- return JNI_FALSE;
-
- return (*env)->GetLongField(env, jprocess, id) ? JNI_TRUE : JNI_FALSE;
-}
-JNIEXPORT void JNICALL
-Java_org_simgrid_msg_Process_nativeInit(JNIEnv *env, jclass cls) {
- jclass jprocess_class_Process = (*env)->FindClass(env, "org/simgrid/msg/Process");
-
- 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_id = jxbt_get_jfield(env, jprocess_class_Process, "id", "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");
- if (!jprocess_class_Process || !jprocess_field_Process_id || !jprocess_field_Process_name || !jprocess_field_Process_pid ||
- !jprocess_field_Process_ppid || !jprocess_field_Process_host) {
- jxbt_throw_native(env,bprintf("Can't find some fields in Java class. You should report this bug."));
- }
-}
-JNIEXPORT void JNICALL
-Java_org_simgrid_msg_Process_create(JNIEnv * env,
- jobject jprocess_arg,
- jobject jhostname)
-{
-
-
- jobject jprocess; /* the global reference to the java process instance */
- jstring jname; /* the name of the java process instance */
- const char *name; /* the C name of the process */
- const char *hostname;
- msg_process_t process; /* the native process to create */
- msg_host_t host; /* Where that process lives */
-
- hostname = (*env)->GetStringUTFChars(env, jhostname, 0);
-
- /* get the name of the java process */
- jname = jprocess_get_name(jprocess_arg, env);
- if (!jname) {
- jxbt_throw_null(env,
- xbt_strdup("Internal error: Process name cannot be NULL"));
- return;
- }
-
- /* bind/retrieve the msg host */
- host = MSG_host_by_name(hostname);
-
- if (!(host)) { /* not bound */
- jxbt_throw_host_not_found(env, hostname);
- return;
- }
-
- /* create a global java process instance */
- jprocess = jprocess_new_global_ref(jprocess_arg, env);
- if (!jprocess) {
- jxbt_throw_jni(env, "Can't get a global ref to the java process");
- return;
- }
-
- /* build the C name of the process */
- name = (*env)->GetStringUTFChars(env, jname, 0);
- name = xbt_strdup(name);
-
- /* Retrieve the kill time from the process */
- jdouble jkill = (*env)->GetDoubleField(env, jprocess, jprocess_field_Process_killTime);
- /* Actually build the MSG process */
- process = MSG_process_create_with_environment(name,
- (xbt_main_func_t) jprocess,
- /*data*/ jprocess,
- host,
- /*argc, argv, properties*/
- 0,NULL,NULL);
- MSG_process_set_kill_time(process, (double)jkill);
- /* bind the java process instance to the native process */
- jprocess_bind(jprocess, process, env);
-
- /* release our reference to the process name (variable name becomes invalid) */
- //FIXME : This line should be uncommented but with mac it doesn't work. BIG WARNING
- //(*env)->ReleaseStringUTFChars(env, jname, name);
- (*env)->ReleaseStringUTFChars(env, jhostname, hostname);
-
- /* sets the PID and the PPID of the process */
- (*env)->SetIntField(env, jprocess, jprocess_field_Process_pid,(jint) MSG_process_get_PID(process));
- (*env)->SetIntField(env, jprocess, jprocess_field_Process_ppid, (jint) MSG_process_get_PPID(process));
- /* sets the Host of the process */
- jobject jhost = Java_org_simgrid_msg_Host_getByName(env,NULL,jhostname);
-
- (*env)->SetObjectField(env, jprocess, jprocess_field_Process_host, jhost);
-}
-
-JNIEXPORT jint JNICALL
-Java_org_simgrid_msg_Process_killAll(JNIEnv * env, jclass cls,
- jint jresetPID)
-{
- return (jint) MSG_process_killall((int) jresetPID);
-}
-
-JNIEXPORT jobject JNICALL
-Java_org_simgrid_msg_Process_fromPID(JNIEnv * env, jclass cls,
- jint PID)
-{
- msg_process_t process = MSG_process_from_PID(PID);
-
- if (!process) {
- jxbt_throw_process_not_found(env, bprintf("PID = %d",(int) PID));
- return NULL;
- }
-
- jobject jprocess = native_to_java_process(process);
-
- if (!jprocess) {
- jxbt_throw_jni(env, "get process failed");
- return NULL;
- }
-
- return jprocess;
-}
-JNIEXPORT jobject JNICALL
-Java_org_simgrid_msg_Process_getProperty(JNIEnv *env, jobject jprocess, jobject jname) {
- msg_process_t process = jprocess_to_native_process(jprocess, env);
-
- if (!process) {
- jxbt_throw_notbound(env, "process", jprocess);
- return NULL;
- }
- const char *name = (*env)->GetStringUTFChars(env, jname, 0);
-
- const char *property = MSG_process_get_property_value(process, name);
- if (!property) {
- return NULL;
- }
-
- jobject jproperty = (*env)->NewStringUTF(env, property);
-
- (*env)->ReleaseStringUTFChars(env, jname, name);
-
- return jproperty;
-}
-JNIEXPORT jobject JNICALL
-Java_org_simgrid_msg_Process_getCurrentProcess(JNIEnv * env, jclass cls)
-{
- msg_process_t process = MSG_process_self();
- jobject jprocess;
-
- if (!process) {
- jxbt_throw_jni(env, xbt_strdup("MSG_process_self() failed"));
- return NULL;
- }
-
- jprocess = native_to_java_process(process);
-
- if (!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)
-{
- msg_process_t process = jprocess_to_native_process(jprocess, env);
-
- if (!process) {
- jxbt_throw_notbound(env, "process", jprocess);
- return;
- }
-
- /* try to suspend the process */
- msg_error_t rv = MSG_process_suspend(process);
-
- jxbt_check_res("MSG_process_suspend()", rv, MSG_OK,
- bprintf("unexpected error , please report this bug"));
-
-}
-
-JNIEXPORT void JNICALL
-Java_org_simgrid_msg_Process_resume(JNIEnv * env,
- jobject jprocess)
-{
- msg_process_t process = jprocess_to_native_process(jprocess, env);
-
- if (!process) {
- jxbt_throw_notbound(env, "process", jprocess);
- return;
- }
-
- /* try to resume the process */
- msg_error_t rv = MSG_process_resume(process);
-
- jxbt_check_res("MSG_process_resume()", rv, MSG_OK,
- bprintf("unexpected error , please report this bug"));
-}
-JNIEXPORT void JNICALL
-Java_org_simgrid_msg_Process_setAutoRestart
- (JNIEnv *env, jobject jprocess, jboolean jauto_restart) {
- msg_process_t process = jprocess_to_native_process(jprocess, env);
- xbt_ex_t e;
-
- int auto_restart = jauto_restart == JNI_TRUE ? 1 : 0;
-
- if (!process) {
- jxbt_throw_notbound(env, "process", jprocess);
- return;
- }
-
- TRY {
- MSG_process_auto_restart_set(process,auto_restart);
- }
- CATCH (e) {
- xbt_ex_free(e);
- }
-}
-JNIEXPORT void JNICALL
-Java_org_simgrid_msg_Process_restart
- (JNIEnv *env, jobject jprocess) {
- msg_process_t process = jprocess_to_native_process(jprocess, env);
- xbt_ex_t e;
-
- if (!process) {
- jxbt_throw_notbound(env, "process", jprocess);
- return;
- }
-
- TRY {
- MSG_process_restart(process);
- }
- CATCH (e) {
- xbt_ex_free(e);
- }
-
-}
-JNIEXPORT jboolean JNICALL
-Java_org_simgrid_msg_Process_isSuspended(JNIEnv * env,
- jobject jprocess)
-{
- msg_process_t process = jprocess_to_native_process(jprocess, env);
-
- if (!process) {
- jxbt_throw_notbound(env, "process", jprocess);
- return 0;
- }
-
- /* true is the process is suspended, false otherwise */
- return (jboolean) MSG_process_is_suspended(process);
-}
-
-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;
- rv = MSG_process_sleep(time);
- if (rv != MSG_OK) {
- XBT_DEBUG("Something during the MSG_process_sleep invocation was wrong, trigger a HostFailureException");
-
- //jmsg_throw_status(env,rv);
-
- // adsein, the code above as been replaced by the code below. Indeed, according to the documentation, a sleep can only
- // trigger a host_failure exception. When the sleep crashes due to a host shutdown, the exception thrown by smx_context_java.c
- // is a cancelled_error, see bindings/java/smx_context_java.c, function void smx_ctx_java_stop(smx_context_t context) and src/msg/msg_gos.c
- // function msg_error_t MSG_process_sleep(double nb_sec)
-
- jxbt_throw_host_failure(env,NULL);
- }
-}
-JNIEXPORT void JNICALL
-Java_org_simgrid_msg_Process_waitFor(JNIEnv * env, jobject jprocess,
- jdouble jseconds)
-{
- msg_error_t rv;
- rv = MSG_process_sleep((double)jseconds);
- if ((*env)->ExceptionOccurred(env))
- 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 */
- msg_process_t process = jprocess_to_native_process(jprocess, env);
- if (!process) {
- jxbt_throw_notbound(env, "process", jprocess);
- return;
- }
-
- MSG_process_kill(process);
-}
-JNIEXPORT void JNICALL
-Java_org_simgrid_msg_Process_migrate(JNIEnv * env,
- jobject jprocess, jobject jhost)
-{
- msg_process_t process = jprocess_to_native_process(jprocess, env);
-
- if (!process) {
- jxbt_throw_notbound(env, "process", jprocess);
- return;
- }
-
- msg_host_t host = jhost_get_native(env, jhost);
-
- if (!host) {
- jxbt_throw_notbound(env, "host", jhost);
- return;
- }
-
- /* try to change the host of the process */
- msg_error_t rv = MSG_process_migrate(process, host);
- if (rv != MSG_OK) {
- jmsg_throw_status(env,rv);
- return;
- }
- /* change the host java side */
- (*env)->SetObjectField(env, jprocess, jprocess_field_Process_host, jhost);
-}
-JNIEXPORT void JNICALL
-Java_org_simgrid_msg_Process_setKillTime (JNIEnv *env , jobject jprocess, jdouble jkilltime) {
- msg_process_t process = jprocess_to_native_process(jprocess, env);
- MSG_process_set_kill_time(process, (double)jkilltime);
-}
-
-JNIEXPORT jint JNICALL
-Java_org_simgrid_msg_Process_getCount(JNIEnv * env, jclass cls) {
- return (jint) MSG_process_get_number();
-}
