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Removed jprocess_start (useless now), cached ids in jmsg_process
[simgrid.git] / src / jmsg_process.c
index cba0649..b7d7a3b 100644 (file)
 #include "jmsg.h"
 #include "jmsg_host.h"
 #include "jxbt_utilities.h"
-
-#include "smx_context_java.h"  
+#include "smx_context_java.h"
 
 XBT_LOG_EXTERNAL_DEFAULT_CATEGORY(jmsg);
 
+static jfieldID jprocess_field_Process_bind;
+static jfieldID jprocess_field_Process_name;
 static jfieldID jprocess_field_Process_host;
+static jfieldID jprocess_field_Process_id;
 static jfieldID jprocess_field_Process_pid;
 static jfieldID jprocess_field_Process_ppid;
 
@@ -34,149 +36,31 @@ void jprocess_delete_global_ref(jobject jprocess, JNIEnv * env)
   (*env)->DeleteGlobalRef(env, jprocess);
 }
 
-jboolean jprocess_is_alive(jobject jprocess, JNIEnv * env)
-{
-  jmethodID id =
-      jxbt_get_smethod(env, "org/simgrid/msg/Process", "isAlive", "()Z");
-
-  if (!id)
-    return 0;
-
-  return (*env)->CallBooleanMethod(env, jprocess, id);
-}
-
 void jprocess_join(jobject jprocess, JNIEnv * env)
 {
-  jmethodID id =
-      jxbt_get_smethod(env, "org/simgrid/msg/Process", "join", "()V");
-
-  if (!id)
-    return;
-
-  (*env)->CallVoidMethod(env, jprocess, id);
-}
-
-void jprocess_exit(jobject jprocess, JNIEnv * env)
-{
-  jmethodID id =
-      jxbt_get_smethod(env, "org/simgrid/msg/Process", "interrupt", "()V");
-
-  if (!id)
-    return;
-
-  (*env)->CallVoidMethod(env, jprocess, id);
-}
-
-void jprocess_yield(jobject jprocess, JNIEnv * env)
-{
-  jmethodID id =
-      jxbt_get_smethod(env, "org/simgrid/msg/Process", "switchProcess", "()V");
-
-  if (!id)
-    return;
-
-  (*env)->CallVoidMethod(env, jprocess, id);
-}
-
-void jprocess_lock_mutex(jobject jprocess, JNIEnv * env)
-{
-  jmethodID id =
-      jxbt_get_smethod(env, "org/simgrid/msg/Process", "lockMutex", "()V");
-
-  if (!id)
-    return;
-
-  (*env)->CallVoidMethod(env, jprocess, id);
-}
-
-void jprocess_unlock_mutex(jobject jprocess, JNIEnv * env)
-{
-  jmethodID id =
-      jxbt_get_smethod(env, "org/simgrid/msg/Process", "unlockMutex", "()V");
-
-  if (!id)
-    return;
-
-  (*env)->CallVoidMethod(env, jprocess, id);
-}
-
-
-void jprocess_signal_cond(jobject jprocess, JNIEnv * env)
-{
-  jmethodID id =
-      jxbt_get_smethod(env, "org/simgrid/msg/Process", "signalCond", "()V");
-
-  if (!id)
-    return;
-
-  (*env)->CallVoidMethod(env, jprocess, id);
-}
-
-void jprocess_wait_cond(jobject jprocess, JNIEnv * env)
-{
-  jmethodID id =
-      jxbt_get_smethod(env, "org/simgrid/msg/Process", "waitCond", "()V");
-
-  if (!id)
-    return;
-
-  (*env)->CallVoidMethod(env, jprocess, id);
-}
-
-
-void jprocess_start(jobject jprocess, JNIEnv * env)
-{
-  jmethodID id =
-      jxbt_get_smethod(env, "org/simgrid/msg/Process", "start", "()V");
-
-  if (!id)
-    return;
-
-  XBT_DEBUG("jprocess_start(jproc=%p,env=%p)", jprocess, env);
-  (*env)->CallVoidMethod(env, jprocess, id);
-  XBT_DEBUG("jprocess started");
+       m_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);
 }
 
 m_process_t jprocess_to_native_process(jobject jprocess, JNIEnv * env)
 {
-  jfieldID id = jxbt_get_sfield(env, "org/simgrid/msg/Process", "bind", "J");
-
-  if (!id)
-    return NULL;
-
-  return (m_process_t) (long) (*env)->GetLongField(env, jprocess, id);
+  return (m_process_t) (long) (*env)->GetLongField(env, jprocess, jprocess_field_Process_bind);
 }
 
 void jprocess_bind(jobject jprocess, m_process_t process, JNIEnv * env)
 {
-  jfieldID id = jxbt_get_sfield(env, "org/simgrid/msg/Process", "bind", "J");
-  if (!id)
-    return;
-
-  (*env)->SetLongField(env, jprocess, id, (jlong) (long) (process));
+  (*env)->SetLongField(env, jprocess, jprocess_field_Process_bind, (jlong) (long) (process));
 }
 
 jlong jprocess_get_id(jobject jprocess, JNIEnv * env)
 {
-  jfieldID id = jxbt_get_sfield(env, "org/simgrid/msg/Process", "id", "J");
-
-  if (!id)
-    return 0;
-
-  return (*env)->GetLongField(env, jprocess, id);
+  return (*env)->GetLongField(env, jprocess, jprocess_field_Process_id);
 }
 
 jstring jprocess_get_name(jobject jprocess, JNIEnv * env)
 {
-  jfieldID id = jxbt_get_sfield(env, "org/simgrid/msg/Process", "name",
-                                "Ljava/lang/String;");
-  jobject jname;
-
-  if (!id)
-    return NULL;
-
-  jname = (jstring) (*env)->GetObjectField(env, jprocess, id);
-
+  jstring jname = (jstring) (*env)->GetObjectField(env, jprocess, jprocess_field_Process_name);
   return (*env)->NewGlobalRef(env, jname);
 
 }
@@ -190,50 +74,18 @@ jboolean jprocess_is_valid(jobject jprocess, JNIEnv * env)
 
   return (*env)->GetLongField(env, jprocess, id) ? JNI_TRUE : JNI_FALSE;
 }
-
-void jprocess_schedule(smx_context_t context)
-{
-  JNIEnv *env;
-  jmethodID id;
-
-  env = get_current_thread_env();
-
-  id = jxbt_get_smethod(env, "org/simgrid/msg/Process", "schedule", "()V");
-
-  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);
-}
-
-
-
-void jprocess_unschedule(smx_context_t context)
-{
-  JNIEnv *env;
-  jmethodID id;
-
-  env = get_current_thread_env();
-
-
-  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_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;");
 
-       if (!jprocess_class_Process || !jprocess_field_Process_pid ||
+       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."));
        }
@@ -295,15 +147,14 @@ Java_org_simgrid_msg_Process_create(JNIEnv * env,
                                                0,NULL,NULL);
 
   MSG_process_set_data(process,&process);
+  /* 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);
 
-  /* 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));
@@ -430,43 +281,26 @@ Java_org_simgrid_msg_Process_waitFor(JNIEnv * env, jobject 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;
+  if (rv != MSG_OK) {
+//     smx_ctx_java_stop(smx_ctx_java_self());
   }
-
-  smx_ctx_java_stop(MSG_process_get_smx_ctx(process));
 }
 
 JNIEXPORT void JNICALL
-Java_org_simgrid_msg_Process_kill(JNIEnv * env, jclass cls,
+Java_org_simgrid_msg_Process_kill(JNIEnv * env,
                                   jobject jprocess)
 {
-  /* get the native instances from the java ones */
+       /* 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;
   }
+  /* Sets the "killed" flag to kill the process on the next unschedule */
+  smx_ctx_java_t context = (smx_ctx_java_t)MSG_process_get_smx_ctx(process);
+       context->killed = 1;
 
-  /* kill the native process (this wrapper is call by the destructor of the java
-   * process instance)
-   */
-  MSG_process_kill(process);
+       MSG_process_kill(process);
 }
 JNIEXPORT void JNICALL
 Java_org_simgrid_msg_Process_migrate(JNIEnv * env,