X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/1555ef43eee251e5892a2f7fd49bc96e99d68fef..f690616d2664e4eca273b47be00c23258a33d813:/src/bindings/java/jmsg_process.cpp

diff --git a/src/bindings/java/jmsg_process.cpp b/src/bindings/java/jmsg_process.cpp
index c6d0e7fda1..612e38b552 100644
--- a/src/bindings/java/jmsg_process.cpp
+++ b/src/bindings/java/jmsg_process.cpp
@@ -1,7 +1,6 @@
 /* Functions related to the java process instances.                         */
 
-/* Copyright (c) 2007-2015. The SimGrid Team.
- * All rights reserved.                                                     */
+/* Copyright (c) 2007-2017. 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. */
@@ -17,45 +16,32 @@
 
 XBT_LOG_EXTERNAL_DEFAULT_CATEGORY(jmsg);
 
-extern "C" {
+SG_BEGIN_DECL()
 
 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)
+jobject jprocess_from_native(msg_process_t process)
 {
-  simgrid::java::JavaContext* context = (simgrid::java::JavaContext*) MSG_process_get_smx_ctx(process);
+  simgrid::kernel::context::JavaContext* context = (simgrid::kernel::context::JavaContext*) MSG_process_get_smx_ctx(process);
   return context->jprocess;
 }
 
-jobject jprocess_new_global_ref(jobject jprocess, JNIEnv * env)
+jobject jprocess_ref(jobject jprocess, JNIEnv* env)
 {
   return env->NewGlobalRef(jprocess);
 }
 
-void jprocess_delete_global_ref(jobject jprocess, JNIEnv * env)
+void jprocess_unref(jobject jprocess, JNIEnv* env)
 {
   env->DeleteGlobalRef(jprocess);
 }
 
-void jprocess_join(jobject jprocess, JNIEnv * env)
-{
-  msg_process_t process = jprocess_to_native_process(jprocess,env);
-  simgrid::java::JavaContext* context = (simgrid::java::JavaContext*) MSG_process_get_smx_ctx(process);
-  xbt_os_thread_join(context->thread,nullptr);
-}
-
-msg_process_t jprocess_to_native_process(jobject jprocess, JNIEnv * env)
+msg_process_t jprocess_to_native(jobject jprocess, JNIEnv* env)
 {
   return (msg_process_t)(intptr_t)env->GetLongField(jprocess, jprocess_field_Process_bind);
 }
@@ -65,61 +51,44 @@ void jprocess_bind(jobject jprocess, msg_process_t process, JNIEnv * env)
   env->SetLongField(jprocess, jprocess_field_Process_bind, (intptr_t)process);
 }
 
-jlong jprocess_get_id(jobject jprocess, JNIEnv * env)
-{
-  return (intptr_t)env->GetLongField(jprocess, jprocess_field_Process_id);
-}
-
 jstring jprocess_get_name(jobject jprocess, JNIEnv * env)
 {
   jstring jname = (jstring) env->GetObjectField(jprocess, jprocess_field_Process_name);
   return (jstring) env->NewGlobalRef(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(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("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_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."));
-  }
+  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 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((jstring) jhostname, 0);
+  const char* hostname = env->GetStringUTFChars((jstring)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 nullptr"));
+    jxbt_throw_null(env, xbt_strdup("Process name cannot be nullptr"));
     return;
   }
+  const char* name = env->GetStringUTFChars(jname, 0);
+  name             = xbt_strdup(name);
 
   /* bind/retrieve the msg host */
   host = MSG_host_by_name(hostname);
@@ -130,25 +99,21 @@ JNIEXPORT void JNICALL Java_org_simgrid_msg_Process_create(JNIEnv * env, jobject
   }
 
   /* create a global java process instance */
-  jprocess = jprocess_new_global_ref(jprocess_arg, env);
+  jprocess = jprocess_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(jname, 0);
-  name = xbt_strdup(name);
-
   /* Retrieve the kill time from the process */
   jdouble jkill = env->GetDoubleField(jprocess, jprocess_field_Process_killTime);
   /* Actually build the MSG process */
   process = MSG_process_create_with_environment(name, [](int argc, char** argv) -> int {
-              smx_process_t process = SIMIX_process_self();
+              smx_actor_t process = SIMIX_process_self();
               // This is the jprocess passed as environment.
-              // It would be simplet if we could use a closure.
+              // It would be simpler if we could use a closure.
               jobject jprocess = (jobject) MSG_process_get_data(process);
-              simgrid::java::java_main_jprocess(jprocess);
+              simgrid::kernel::context::java_main_jprocess(jprocess);
               return 0;
             }, jprocess,
             host,
@@ -177,16 +142,16 @@ JNIEXPORT jint JNICALL Java_org_simgrid_msg_Process_killAll(JNIEnv * env, jclass
   return (jint) MSG_process_killall((int) jresetPID);
 }
 
-JNIEXPORT jobject JNICALL Java_org_simgrid_msg_Process_fromPID(JNIEnv * env, jclass cls, jint PID)
+JNIEXPORT jobject JNICALL Java_org_simgrid_msg_Process_fromPID(JNIEnv * env, jclass cls, jint pid)
 {
-  msg_process_t process = MSG_process_from_PID(PID);
+  msg_process_t process = MSG_process_from_PID(pid);
 
   if (!process) {
-    jxbt_throw_process_not_found(env, bprintf("PID = %d",(int) PID));
+    jxbt_throw_process_not_found(env, bprintf("PID = %d",static_cast<int>(pid)));
     return nullptr;
   }
 
-  jobject jprocess = native_to_java_process(process);
+  jobject jprocess = jprocess_from_native(process);
 
   if (!jprocess) {
     jxbt_throw_jni(env, "get process failed");
@@ -197,7 +162,7 @@ JNIEXPORT jobject JNICALL Java_org_simgrid_msg_Process_fromPID(JNIEnv * env, jcl
 }
 
 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);
+  msg_process_t process = jprocess_to_native(jprocess, env);
 
   if (!process) {
     jxbt_throw_notbound(env, "process", jprocess);
@@ -227,7 +192,7 @@ JNIEXPORT jobject JNICALL Java_org_simgrid_msg_Process_getCurrentProcess(JNIEnv
     return nullptr;
   }
 
-  jprocess = native_to_java_process(process);
+  jprocess = jprocess_from_native(process);
 
   if (!jprocess)
     jxbt_throw_jni(env, xbt_strdup("SIMIX_process_get_jprocess() failed"));
@@ -237,7 +202,7 @@ JNIEXPORT jobject JNICALL Java_org_simgrid_msg_Process_getCurrentProcess(JNIEnv
 
 JNIEXPORT void JNICALL Java_org_simgrid_msg_Process_suspend(JNIEnv * env, jobject jprocess)
 {
-  msg_process_t process = jprocess_to_native_process(jprocess, env);
+  msg_process_t process = jprocess_to_native(jprocess, env);
 
   if (!process) {
     jxbt_throw_notbound(env, "process", jprocess);
@@ -252,7 +217,7 @@ JNIEXPORT void JNICALL Java_org_simgrid_msg_Process_suspend(JNIEnv * env, jobjec
 
 JNIEXPORT void JNICALL Java_org_simgrid_msg_Process_resume(JNIEnv * env, jobject jprocess)
 {
-  msg_process_t process = jprocess_to_native_process(jprocess, env);
+  msg_process_t process = jprocess_to_native(jprocess, env);
 
   if (!process) {
     jxbt_throw_notbound(env, "process", jprocess);
@@ -266,7 +231,7 @@ JNIEXPORT void JNICALL Java_org_simgrid_msg_Process_resume(JNIEnv * env, jobject
 }
 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);
+  msg_process_t process = jprocess_to_native(jprocess, env);
   xbt_ex_t e;
 
   int auto_restart = jauto_restart == JNI_TRUE ? 1 : 0;
@@ -285,7 +250,7 @@ JNICALL Java_org_simgrid_msg_Process_setAutoRestart (JNIEnv *env, jobject jproce
 }
 
 JNIEXPORT void JNICALL Java_org_simgrid_msg_Process_restart (JNIEnv *env, jobject jprocess) {
-  msg_process_t process = jprocess_to_native_process(jprocess, env);
+  msg_process_t process = jprocess_to_native(jprocess, env);
   xbt_ex_t e;
 
   if (!process) {
@@ -303,7 +268,7 @@ JNIEXPORT void JNICALL Java_org_simgrid_msg_Process_restart (JNIEnv *env, jobjec
 }
 JNIEXPORT jboolean JNICALL Java_org_simgrid_msg_Process_isSuspended(JNIEnv * env, jobject jprocess)
 {
-  msg_process_t process = jprocess_to_native_process(jprocess, env);
+  msg_process_t process = jprocess_to_native(jprocess, env);
 
   if (!process) {
     jxbt_throw_notbound(env, "process", jprocess);
@@ -348,18 +313,22 @@ JNIEXPORT void JNICALL Java_org_simgrid_msg_Process_waitFor(JNIEnv * env, jobjec
 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);
+  msg_process_t process = jprocess_to_native(jprocess, env);
   if (!process) {
     jxbt_throw_notbound(env, "process", jprocess);
     return;
   }
 
-  MSG_process_kill(process);
+  try {
+    MSG_process_kill(process);
+  } catch (xbt_ex& ex) {
+    XBT_VERB("This process just killed itself.");
+  }
 }
 
 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);
+  msg_process_t process = jprocess_to_native(jprocess, env);
 
   if (!process) {
     jxbt_throw_notbound(env, "process", jprocess);
@@ -383,8 +352,13 @@ JNIEXPORT void JNICALL Java_org_simgrid_msg_Process_migrate(JNIEnv * env, jobjec
   env->SetObjectField(jprocess, jprocess_field_Process_host, jhost);
 }
 
+JNIEXPORT void JNICALL Java_org_simgrid_msg_Process_yield(JNIEnv* env, jclass cls)
+{
+  MSG_process_yield();
+}
+
 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_t process = jprocess_to_native(jprocess, env);
   MSG_process_set_kill_time(process, (double)jkilltime);
 }
 
@@ -392,4 +366,4 @@ JNIEXPORT jint JNICALL Java_org_simgrid_msg_Process_getCount(JNIEnv * env, jclas
   return (jint) MSG_process_get_number();
 }
 
-}
+SG_END_DECL()