--- /dev/null
+/* Java Wrappers to the MSG API. */
+
+/* Copyright (c) 2007-2012. 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 <msg/msg.h>
+#include <simgrid/simix.h>
+#include <surf/surfxml_parse.h>
+#include <locale.h>
+
+#include "smx_context_java.h"
+#include "smx_context_cojava.h"
+
+#include "jmsg_process.h"
+
+#include "jmsg_host.h"
+#include "jmsg_task.h"
+#include "jxbt_utilities.h"
+
+#include "jmsg.h"
+
+/* Shut up some errors in eclipse online compiler. I wish such a pimple wouldn't be needed */
+#ifndef JNIEXPORT
+#define JNIEXPORT
+#endif
+#ifndef JNICALL
+#define JNICALL
+#endif
+/* end of eclipse-mandated pimple */
+
+static int create_jprocess(int argc, char *argv[]);
+
+XBT_LOG_EXTERNAL_DEFAULT_CATEGORY(jmsg);
+
+JavaVM *__java_vm = NULL;
+
+JavaVM *get_java_VM(void)
+{
+ return __java_vm;
+}
+
+JNIEnv *get_current_thread_env(void)
+{
+ JNIEnv *env;
+
+ (*__java_vm)->AttachCurrentThread(__java_vm, (void **) &env, NULL);
+ return env;
+}
+
+void jmsg_throw_status(JNIEnv *env, msg_error_t status) {
+ switch (status) {
+ case MSG_TIMEOUT:
+ jxbt_throw_time_out_failure(env,NULL);
+ break;
+ case MSG_TRANSFER_FAILURE:
+ jxbt_throw_transfer_failure(env,NULL);
+ break;
+ case MSG_HOST_FAILURE:
+ jxbt_throw_host_failure(env,NULL);
+ break;
+ default:
+ jxbt_throw_native(env,bprintf("communication failed"));
+ }
+}
+
+
+/***************************************************************************************
+ * Unsortable functions *
+ ***************************************************************************************/
+
+JNIEXPORT jdouble JNICALL
+Java_org_simgrid_msg_Msg_getClock(JNIEnv * env, jclass cls)
+{
+ return (jdouble) MSG_get_clock();
+}
+
+JNIEXPORT void JNICALL
+Java_org_simgrid_msg_Msg_init(JNIEnv * env, jclass cls, jobjectArray jargs)
+{
+ char **argv = NULL;
+ int index;
+ int argc = 0;
+ jstring jval;
+ const char *tmp;
+
+ (*env)->GetJavaVM(env, &__java_vm);
+
+ if ((*env)->FindClass(env, "java/dyn/Coroutine")) {
+ XBT_INFO("Using Coroutines. Your simulation is on steroid.");
+ smx_factory_initializer_to_use = SIMIX_ctx_cojava_factory_init;
+ }
+ else {
+ XBT_INFO("Using regular java threads. Coroutines could speed your simulation up.");
+ smx_factory_initializer_to_use = SIMIX_ctx_java_factory_init;
+ }
+ jthrowable exc = (*env)->ExceptionOccurred(env);
+ if (exc) {
+ (*env)->ExceptionClear(env);
+ }
+
+ setlocale(LC_NUMERIC,"C");
+
+ if (jargs)
+ argc = (int) (*env)->GetArrayLength(env, jargs);
+
+ argc++;
+ argv = xbt_new(char *, argc + 1);
+ argv[0] = strdup("java");
+
+ for (index = 0; index < argc - 1; index++) {
+ jval = (jstring) (*env)->GetObjectArrayElement(env, jargs, index);
+ tmp = (*env)->GetStringUTFChars(env, jval, 0);
+ argv[index + 1] = strdup(tmp);
+ (*env)->ReleaseStringUTFChars(env, jval, tmp);
+ }
+ argv[argc] = NULL;
+
+ MSG_init(&argc, argv);
+
+ for (index = 0; index < argc; index++)
+ free(argv[index]);
+
+ free(argv);
+}
+
+JNIEXPORT void JNICALL
+ JNICALL Java_org_simgrid_msg_Msg_run(JNIEnv * env, jclass cls)
+{
+ msg_error_t rv;
+ int index;
+ xbt_dynar_t hosts;
+ jobject jhost;
+
+ /* Run everything */
+ XBT_DEBUG("Ready to run MSG_MAIN");
+ rv = MSG_main();
+ XBT_DEBUG("Done running MSG_MAIN");
+ jxbt_check_res("MSG_main()", rv, MSG_OK,
+ bprintf
+ ("unexpected error : MSG_main() failed .. please report this bug "));
+
+ XBT_INFO("MSG_main finished; Cleaning up the simulation...");
+ /* Cleanup java hosts */
+ hosts = MSG_hosts_as_dynar();
+ for (index = 0; index < xbt_dynar_length(hosts) - 1; index++) {
+ jhost = (jobject) MSG_host_get_data(xbt_dynar_get_as(hosts,index,msg_host_t));
+ if (jhost)
+ jhost_unref(env, jhost);
+
+ }
+ xbt_dynar_free(&hosts);
+}
+
+JNIEXPORT void JNICALL
+Java_org_simgrid_msg_Msg_createEnvironment(JNIEnv * env, jclass cls,
+ jstring jplatformFile)
+{
+
+ const char *platformFile =
+ (*env)->GetStringUTFChars(env, jplatformFile, 0);
+
+ MSG_create_environment(platformFile);
+
+ (*env)->ReleaseStringUTFChars(env, jplatformFile, platformFile);
+}
+JNIEXPORT void JNICALL
+Java_org_simgrid_msg_Msg_debug(JNIEnv * env, jclass cls, jstring js)
+{
+ const char *s = (*env)->GetStringUTFChars(env, js, 0);
+ XBT_DEBUG("%s", s);
+ (*env)->ReleaseStringUTFChars(env, js, s);
+}
+JNIEXPORT void JNICALL
+Java_org_simgrid_msg_Msg_verb(JNIEnv * env, jclass cls, jstring js)
+{
+ const char *s = (*env)->GetStringUTFChars(env, js, 0);
+ XBT_VERB("%s", s);
+ (*env)->ReleaseStringUTFChars(env, js, s);
+}
+JNIEXPORT void JNICALL
+Java_org_simgrid_msg_Msg_info(JNIEnv * env, jclass cls, jstring js)
+{
+ const char *s = (*env)->GetStringUTFChars(env, js, 0);
+ XBT_INFO("%s", s);
+ (*env)->ReleaseStringUTFChars(env, js, s);
+}
+JNIEXPORT void JNICALL
+Java_org_simgrid_msg_Msg_warn(JNIEnv * env, jclass cls, jstring js)
+{
+ const char *s = (*env)->GetStringUTFChars(env, js, 0);
+ XBT_WARN("%s", s);
+ (*env)->ReleaseStringUTFChars(env, js, s);
+}
+JNIEXPORT void JNICALL
+Java_org_simgrid_msg_Msg_error(JNIEnv * env, jclass cls, jstring js)
+{
+ const char *s = (*env)->GetStringUTFChars(env, js, 0);
+ XBT_ERROR("%s", s);
+ (*env)->ReleaseStringUTFChars(env, js, s);
+}
+JNIEXPORT void JNICALL
+Java_org_simgrid_msg_Msg_critical(JNIEnv * env, jclass cls, jstring js)
+{
+ const char *s = (*env)->GetStringUTFChars(env, js, 0);
+ XBT_CRITICAL("%s", s);
+ (*env)->ReleaseStringUTFChars(env, js, s);
+}
+JNIEXPORT void JNICALL
+Java_org_simgrid_msg_Msg_deployApplication(JNIEnv * env, jclass cls,
+ jstring jdeploymentFile)
+{
+
+ const char *deploymentFile =
+ (*env)->GetStringUTFChars(env, jdeploymentFile, 0);
+
+ SIMIX_function_register_default(create_jprocess);
+ MSG_launch_application(deploymentFile);
+}
+/**
+ * Function called when there is the need to create the java Process object
+ * (when we are using deployement files).
+ * it HAS to be executed on the process context, else really bad things will happen.
+ */
+static int create_jprocess(int argc, char *argv[]) {
+ JNIEnv *env = get_current_thread_env();
+ //Change the "." in class name for "/".
+ xbt_str_subst(argv[0],'.','/',0);
+ jclass class_Process = (*env)->FindClass(env, argv[0]);
+ xbt_str_subst(argv[0],'/','.',0);
+ //Retrieve the methodID for the constructor
+ xbt_assert((class_Process != NULL), "Class not found.");
+ jmethodID constructor_Process = (*env)->GetMethodID(env, class_Process, "<init>", "(Lorg/simgrid/msg/Host;Ljava/lang/String;[Ljava/lang/String;)V");
+ xbt_assert((constructor_Process != NULL), "Constructor not found for class %s. Is there a (Host, String ,String[]) constructor in your class ?", argv[0]);
+
+ //Retrieve the name of the process.
+ jstring jname = (*env)->NewStringUTF(env, argv[0]);
+ //Build the arguments
+ jobjectArray args = (jobjectArray)((*env)->NewObjectArray(env,argc - 1,
+ (*env)->FindClass(env,"java/lang/String"),
+ (*env)->NewStringUTF(env,"")));
+ int i;
+ for (i = 1; i < argc; i++)
+ (*env)->SetObjectArrayElement(env,args,i - 1,(*env)->NewStringUTF(env, argv[i]));
+ //Retrieve the host for the process.
+ jstring jhostName = (*env)->NewStringUTF(env, MSG_host_get_name(MSG_host_self()));
+ jobject jhost = Java_org_simgrid_msg_Host_getByName(env, NULL, jhostName);
+ //creates the process
+ jobject jprocess = (*env)->NewObject(env, class_Process, constructor_Process, jhost, jname, args);
+ xbt_assert((jprocess != NULL), "Process allocation failed.");
+ jprocess = (*env)->NewGlobalRef(env, jprocess);
+ //bind the process to the context
+ msg_process_t process = MSG_process_self();
+ smx_ctx_java_t context = (smx_ctx_java_t)MSG_process_get_smx_ctx(process);
+ context->jprocess = jprocess;
+/* 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));
+ jprocess_bind(jprocess, process, env);
+
+ return 0;
+}
+
