/* Functions related to the java host instances. */
-/* Copyright (c) 2007, 2009, 2010. The SimGrid Team.
+/* 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 "xbt/str.h"
+#include "msg/msg.h"
#include "jmsg.h"
#include "jmsg_host.h"
#include "jxbt_utilities.h"
XBT_LOG_EXTERNAL_DEFAULT_CATEGORY(jmsg);
-jobject jhost_new_instance(JNIEnv * env) {
+static jmethodID jhost_method_Host_constructor;
+static jfieldID jhost_field_Host_bind;
+static jfieldID jhost_field_Host_name;
- jclass cls = jxbt_get_class(env, "org/simgrid/msg/Host");
- jmethodID constructor = jxbt_get_jmethod(env, cls, "<init>", "()V");
- if (!constructor)
- return NULL;
-
- return (*env)->NewObject(env, cls, constructor);
+jobject jhost_new_instance(JNIEnv * env) {
+ jclass cls = jxbt_get_class(env, "org/simgrid/msg/Host");
+ return (*env)->NewObject(env, cls, jhost_method_Host_constructor);
}
jobject jhost_ref(JNIEnv * env, jobject jhost) {
(*env)->DeleteGlobalRef(env, jhost);
}
-void jhost_bind(jobject jhost, m_host_t host, JNIEnv * env) {
- jfieldID id = jxbt_get_sfield(env, "org/simgrid/msg/Host", "bind", "J");
-
- if (!id)
- return;
-
- (*env)->SetLongField(env, jhost, id, (jlong) (long) (host));
+void jhost_bind(jobject jhost, msg_host_t host, JNIEnv * env) {
+ (*env)->SetLongField(env, jhost, jhost_field_Host_bind, (jlong) (long) (host));
}
-m_host_t jhost_get_native(JNIEnv * env, jobject jhost) {
- jfieldID id = jxbt_get_sfield(env, "org/simgrid/msg/Host", "bind", "J");
-
- if (!id)
- return NULL;
-
- return (m_host_t) (long) (*env)->GetLongField(env, jhost, id);
+msg_host_t jhost_get_native(JNIEnv * env, jobject jhost) {
+ return (msg_host_t) (long) (*env)->GetLongField(env, jhost, jhost_field_Host_bind);
}
const char *jhost_get_name(jobject jhost, JNIEnv * env) {
- m_host_t host = jhost_get_native(env, jhost);
+ msg_host_t host = jhost_get_native(env, jhost);
return MSG_host_get_name(host);
}
jboolean jhost_is_valid(jobject jhost, JNIEnv * env) {
- jfieldID id = jxbt_get_sfield(env, "org/simgrid/msg/Host", "bind", "J");
-
- if (!id)
- return 0;
-
- if ((*env)->GetLongField(env, jhost, id)) {
+ if ((*env)->GetLongField(env, jhost, jhost_field_Host_bind)) {
return JNI_TRUE;
} else {
return JNI_FALSE;
}
}
+JNIEXPORT void JNICALL
+Java_org_simgrid_msg_Host_nativeInit(JNIEnv *env, jclass cls) {
+ jclass class_Host = (*env)->FindClass(env, "org/simgrid/msg/Host");
+ jhost_method_Host_constructor = (*env)->GetMethodID(env, class_Host, "<init>", "()V");
+ jhost_field_Host_bind = jxbt_get_jfield(env,class_Host, "bind", "J");
+ jhost_field_Host_name = jxbt_get_jfield(env, class_Host, "name", "Ljava/lang/String;");
+ if (!class_Host || !jhost_field_Host_name || !jhost_method_Host_constructor || !jhost_field_Host_bind) {
+ jxbt_throw_native(env,bprintf("Can't find some fields in Java class. You should report this bug."));
+ }
+}
JNIEXPORT jobject JNICALL
Java_org_simgrid_msg_Host_getByName(JNIEnv * env, jclass cls,
jstring jname) {
- m_host_t host; /* native host */
+ msg_host_t host; /* native host */
jobject jhost; /* global reference to the java host instance returned */
/* get the C string from the java string */
jxbt_throw_null(env,bprintf("No host can have a null name"));
return NULL;
}
- XBT_DEBUG("Looking for host '%s'",name);
/* get the host by name (the hosts are created during the grid resolution) */
host = MSG_get_host_by_name(name);
- XBT_DEBUG("MSG gave %p as native host", host);
if (!host) { /* invalid name */
jxbt_throw_host_not_found(env, name);
jxbt_throw_jni(env, "new global ref allocation failed");
return NULL;
}
-
+ /* Sets the java host name */
+ (*env)->SetObjectField(env, jhost, jhost_field_Host_name, jname);
/* bind the java host and the native host */
jhost_bind(jhost, host, env);
Java_org_simgrid_msg_Host_currentHost(JNIEnv * env, jclass cls) {
jobject jhost;
- m_host_t host = MSG_host_self();
+ msg_host_t host = MSG_host_self();
if (!MSG_host_get_data(host)) {
/* the native host not yet associated with the java host instance */
jxbt_throw_jni(env, "global ref allocation failed");
return NULL;
}
-
+ /* Sets the host name */
+ const char *name = MSG_host_get_name(host);
+ jobject jname = (*env)->NewStringUTF(env,name);
+ (*env)->SetObjectField(env, jhost, jhost_field_Host_name, jname);
/* Bind & store it */
jhost_bind(jhost, host, env);
MSG_host_set_data(host, (void *) jhost);
return jhost;
}
-
-JNIEXPORT jstring JNICALL
-Java_org_simgrid_msg_Host_getName(JNIEnv * env,
- jobject jhost) {
- m_host_t host = jhost_get_native(env, jhost);
- const char* name;
-
- if (!host) {
- jxbt_throw_notbound(env, "host", jhost);
- return NULL;
- }
-
- name = MSG_host_get_name(host);
- if (!name)
- xbt_die("This host has no name...");
-
- return (*env)->NewStringUTF(env, name);
-}
-
JNIEXPORT jint JNICALL
Java_org_simgrid_msg_Host_getCount(JNIEnv * env, jclass cls) {
xbt_dynar_t hosts = MSG_hosts_as_dynar();
JNIEXPORT jdouble JNICALL
Java_org_simgrid_msg_Host_getSpeed(JNIEnv * env,
jobject jhost) {
- m_host_t host = jhost_get_native(env, jhost);
+ msg_host_t host = jhost_get_native(env, jhost);
if (!host) {
jxbt_throw_notbound(env, "host", jhost);
}
JNIEXPORT jint JNICALL
Java_org_simgrid_msg_Host_getLoad(JNIEnv * env, jobject jhost) {
- m_host_t host = jhost_get_native(env, jhost);
+ msg_host_t host = jhost_get_native(env, jhost);
if (!host) {
jxbt_throw_notbound(env, "host", jhost);
return (jint) MSG_get_host_msgload(host);
}
+JNIEXPORT jobject JNICALL
+Java_org_simgrid_msg_Host_getProperty(JNIEnv *env, jobject jhost, jobject jname) {
+ msg_host_t host = jhost_get_native(env, jhost);
+
+ if (!host) {
+ jxbt_throw_notbound(env, "host", jhost);
+ return NULL;
+ }
+ const char *name = (*env)->GetStringUTFChars(env, jname, 0);
+
+ const char *property = MSG_host_get_property_value(host, name);
+ if (!property) {
+ return NULL;
+ }
+
+ jobject jproperty = (*env)->NewStringUTF(env, property);
+
+ (*env)->ReleaseStringUTFChars(env, jname, name);
+
+ return jproperty;
+}
+JNIEXPORT void JNICALL
+Java_org_simgrid_msg_Host_setProperty(JNIEnv *env, jobject jhost, jobject jname, jobject jvalue) {
+ msg_host_t host = jhost_get_native(env, jhost);
+
+ if (!host) {
+ jxbt_throw_notbound(env, "host", jhost);
+ return;
+ }
+ const char *name = (*env)->GetStringUTFChars(env, jname, 0);
+ const char *value_java = (*env)->GetStringUTFChars(env, jvalue, 0);
+ char *value = strdup(value_java);
+
+ MSG_host_set_property_value(host,name,value,xbt_free);
+
+ (*env)->ReleaseStringUTFChars(env, jvalue, value);
+ (*env)->ReleaseStringUTFChars(env, jname, name);
+
+}
JNIEXPORT jboolean JNICALL
Java_org_simgrid_msg_Host_isAvail(JNIEnv * env, jobject jhost) {
- m_host_t host = jhost_get_native(env, jhost);
+ msg_host_t host = jhost_get_native(env, jhost);
if (!host) {
jxbt_throw_notbound(env, "host", jhost);
return (jboolean) MSG_host_is_avail(host);
}
+
+JNIEXPORT jobjectArray JNICALL
+Java_org_simgrid_msg_Host_all(JNIEnv * env, jclass cls_arg)
+{
+ int index;
+ jobjectArray jtable;
+ jobject jhost;
+ jstring jname;
+ msg_host_t host;
+
+ xbt_dynar_t table = MSG_hosts_as_dynar();
+ int count = xbt_dynar_length(table);
+
+ jclass cls = jxbt_get_class(env, "org/simgrid/msg/Host");
+
+ if (!cls) {
+ return NULL;
+ }
+
+ jtable = (*env)->NewObjectArray(env, (jsize) count, cls, NULL);
+
+ if (!jtable) {
+ jxbt_throw_jni(env, "Hosts table allocation failed");
+ return NULL;
+ }
+
+ for (index = 0; index < count; index++) {
+ host = xbt_dynar_get_as(table,index,msg_host_t);
+ jhost = (jobject) (MSG_host_get_data(host));
+
+ if (!jhost) {
+ jname = (*env)->NewStringUTF(env, MSG_host_get_name(host));
+
+ jhost =
+ Java_org_simgrid_msg_Host_getByName(env, cls_arg, jname);
+ /* FIXME: leak of jname ? */
+ }
+
+ (*env)->SetObjectArrayElement(env, jtable, index, jhost);
+ }
+ xbt_dynar_free(&table);
+ return jtable;
+}
