/* 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);
+static jfieldID jprocess_field_Process_host;
+static jfieldID jprocess_field_Process_pid;
+static jfieldID jprocess_field_Process_ppid;
+
+jobject native_to_java_process(m_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);
jboolean jprocess_is_alive(jobject jprocess, JNIEnv * env)
{
jmethodID id =
- jxbt_get_smethod(env, "simgrid/msg/Process", "isAlive", "()Z");
+ jxbt_get_smethod(env, "org/simgrid/msg/Process", "isAlive", "()Z");
if (!id)
return 0;
void jprocess_join(jobject jprocess, JNIEnv * env)
{
jmethodID id =
- jxbt_get_smethod(env, "simgrid/msg/Process", "join", "()V");
+ jxbt_get_smethod(env, "org/simgrid/msg/Process", "join", "()V");
if (!id)
return;
void jprocess_exit(jobject jprocess, JNIEnv * env)
{
jmethodID id =
- jxbt_get_smethod(env, "simgrid/msg/Process", "interrupt", "()V");
+ jxbt_get_smethod(env, "org/simgrid/msg/Process", "interrupt", "()V");
if (!id)
return;
void jprocess_yield(jobject jprocess, JNIEnv * env)
{
jmethodID id =
- jxbt_get_smethod(env, "simgrid/msg/Process", "switchProcess", "()V");
+ jxbt_get_smethod(env, "org/simgrid/msg/Process", "switchProcess", "()V");
if (!id)
return;
void jprocess_lock_mutex(jobject jprocess, JNIEnv * env)
{
jmethodID id =
- jxbt_get_smethod(env, "simgrid/msg/Process", "lockMutex", "()V");
+ jxbt_get_smethod(env, "org/simgrid/msg/Process", "lockMutex", "()V");
if (!id)
return;
void jprocess_unlock_mutex(jobject jprocess, JNIEnv * env)
{
jmethodID id =
- jxbt_get_smethod(env, "simgrid/msg/Process", "unlockMutex", "()V");
+ jxbt_get_smethod(env, "org/simgrid/msg/Process", "unlockMutex", "()V");
if (!id)
return;
void jprocess_signal_cond(jobject jprocess, JNIEnv * env)
{
jmethodID id =
- jxbt_get_smethod(env, "simgrid/msg/Process", "signalCond", "()V");
+ jxbt_get_smethod(env, "org/simgrid/msg/Process", "signalCond", "()V");
if (!id)
return;
void jprocess_wait_cond(jobject jprocess, JNIEnv * env)
{
jmethodID id =
- jxbt_get_smethod(env, "simgrid/msg/Process", "waitCond", "()V");
+ jxbt_get_smethod(env, "org/simgrid/msg/Process", "waitCond", "()V");
if (!id)
return;
void jprocess_start(jobject jprocess, JNIEnv * env)
{
jmethodID id =
- jxbt_get_smethod(env, "simgrid/msg/Process", "start", "()V");
+ jxbt_get_smethod(env, "org/simgrid/msg/Process", "start", "()V");
if (!id)
return;
- DEBUG2("jprocess_start(jproc=%p,env=%p)", jprocess, env);
+ XBT_DEBUG("jprocess_start(jproc=%p,env=%p)", jprocess, env);
(*env)->CallVoidMethod(env, jprocess, id);
- DEBUG0("jprocess started");
+ XBT_DEBUG("jprocess started");
}
m_process_t jprocess_to_native_process(jobject jprocess, JNIEnv * env)
{
- jfieldID id = jxbt_get_sfield(env, "simgrid/msg/Process", "bind", "J");
+ jfieldID id = jxbt_get_sfield(env, "org/simgrid/msg/Process", "bind", "J");
if (!id)
return NULL;
void jprocess_bind(jobject jprocess, m_process_t process, JNIEnv * env)
{
- jfieldID id = jxbt_get_sfield(env, "simgrid/msg/Process", "bind", "J");
-
+ jfieldID id = jxbt_get_sfield(env, "org/simgrid/msg/Process", "bind", "J");
if (!id)
return;
jlong jprocess_get_id(jobject jprocess, JNIEnv * env)
{
- jfieldID id = jxbt_get_sfield(env, "simgrid/msg/Process", "id", "J");
+ jfieldID id = jxbt_get_sfield(env, "org/simgrid/msg/Process", "id", "J");
if (!id)
return 0;
jstring jprocess_get_name(jobject jprocess, JNIEnv * env)
{
- jfieldID id = jxbt_get_sfield(env, "simgrid/msg/Process", "name",
+ jfieldID id = jxbt_get_sfield(env, "org/simgrid/msg/Process", "name",
"Ljava/lang/String;");
jobject jname;
jboolean jprocess_is_valid(jobject jprocess, JNIEnv * env)
{
- jfieldID id = jxbt_get_sfield(env, "simgrid/msg/Process", "bind", "J");
+ jfieldID id = jxbt_get_sfield(env, "org/simgrid/msg/Process", "bind", "J");
if (!id)
return JNI_FALSE;
env = get_current_thread_env();
- id = jxbt_get_smethod(env, "simgrid/msg/Process", "schedule", "()V");
+ id = jxbt_get_smethod(env, "org/simgrid/msg/Process", "schedule", "()V");
- if (!id)
+ if (!id) {
+ XBT_CRITICAL("Cannot find java method org/simgrid/msg/Process/schedule()V");
return;
+ }
(*env)->CallVoidMethod(env, ((smx_ctx_java_t) context)->jprocess, id);
}
env = get_current_thread_env();
- id = jxbt_get_smethod(env, "simgrid/msg/Process", "unschedule", "()V");
+ id = jxbt_get_smethod(env, "org/simgrid/msg/Process", "unschedule", "()V");
if (!id)
return;
(*env)->CallVoidMethod(env, ((smx_ctx_java_t) context)->jprocess, id);
}
+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_pid = jxbt_get_sfield(env, "org/simgrid/msg/Process", "pid", "I");
+ jprocess_field_Process_ppid = jxbt_get_sfield(env, "org/simgrid/msg/Process", "ppid", "I");
+ jprocess_field_Process_host = jxbt_get_jfield(env, jprocess_class_Process, "host", "Lorg/simgrid/msg/Host;");
+
+ if (!jprocess_class_Process || !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;
+ m_process_t process; /* the native process to create */
+ m_host_t host; /* Where that process lives */
+
+ hostname = (*env)->GetStringUTFChars(env, jhostname, 0);
+
+ XBT_DEBUG("Java_org_simgrid_msg_MsgNative_processCreate(env=%p,jproc=%p,host=%s)",
+ env, jprocess_arg, hostname);
+
+
+ /* 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_get_host_by_name(hostname);
+
+ if (!(host)) { /* not binded */
+ 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);
+
+ /* Actually build the MSG process */
+ process = MSG_process_create_with_environment(name,
+ (xbt_main_func_t) jprocess,
+ /*data*/ NULL,
+ host,
+ /* kill_time */-1,
+ /*argc, argv, properties*/
+ 0,NULL,NULL);
+
+ MSG_process_set_data(process,&process);
+
+ /* 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);
+
+ /* bind the java process instance to the native process */
+ jprocess_bind(jprocess, process, env);
+
+ /* 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)
+{
+ m_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, "SIMIX_process_get_jprocess() failed");
+ return NULL;
+ }
+
+ return jprocess;
+}
+
+JNIEXPORT jobject JNICALL
+Java_org_simgrid_msg_Process_currentProcess(JNIEnv * env, jclass cls)
+{
+ m_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_pause(JNIEnv * env,
+ jobject jprocess)
+{
+ m_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_restart(JNIEnv * env,
+ jobject jprocess)
+{
+ m_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 jboolean JNICALL
+Java_org_simgrid_msg_Process_isSuspended(JNIEnv * env,
+ jobject jprocess)
+{
+ m_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 = jmillis / 1000 + jnanos / 1000;
+
+ MSG_error_t rv = MSG_process_sleep(time);
+ jxbt_check_res("MSG_process_sleep()", rv, MSG_OK,
+ bprintf("unexpected error , please report this bug"));
+}
+JNIEXPORT void JNICALL
+Java_org_simgrid_msg_Process_waitFor(JNIEnv * env, jobject jprocess,
+ jdouble jseconds)
+{
+ m_process_t process = jprocess_to_native_process(jprocess, env);
+
+ if (!process) {
+ jxbt_throw_notbound(env, "process", jprocess);
+ return;
+ }
+ MSG_error_t rv = MSG_process_sleep((double)jseconds);
+
+ jxbt_check_res("MSG_process_sleep()", rv, MSG_OK,
+ bprintf("unexpected error , please report this bug"));
+
+}
+
+JNIEXPORT void JNICALL
+Java_org_simgrid_msg_Process_exit(JNIEnv * env,
+ jobject jprocess)
+{
+
+ m_process_t process = jprocess_to_native_process(jprocess, env);
+
+ if (!process) {
+ jxbt_throw_notbound(env, "process", jprocess);
+ return;
+ }
+
+ smx_ctx_java_stop(MSG_process_get_smx_ctx(process));
+}
+
+JNIEXPORT void JNICALL
+Java_org_simgrid_msg_Process_kill(JNIEnv * env, jclass cls,
+ jobject jprocess)
+{
+ /* get the native instances from the java ones */
+ m_process_t process = jprocess_to_native_process(jprocess, env);
+
+ if (!process) {
+ jxbt_throw_notbound(env, "process", jprocess);
+ return;
+ }
+
+ /* kill the native process (this wrapper is call by the destructor of the java
+ * process instance)
+ */
+ MSG_process_kill(process);
+}
+JNIEXPORT void JNICALL
+Java_org_simgrid_msg_Process_migrate(JNIEnv * env,
+ jobject jprocess, jobject jhost)
+{
+ m_process_t process = jprocess_to_native_process(jprocess, env);
+
+ if (!process) {
+ jxbt_throw_notbound(env, "process", jprocess);
+ return;
+ }
+
+ m_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);
+ jxbt_check_res("MSG_process_migrate()", rv, MSG_OK,
+ bprintf("unexpected error , please report this bug"));
+ /* change the host java side */
+ (*env)->SetObjectField(env, jprocess, jprocess_field_Process_host, jhost);
+}
