/*
* Bindings to the MSG hosts
*
- * Copyright 2006,2007,2010 The SimGrid Team
+ * Copyright 2006-2012 The SimGrid Team
* All right reserved.
*
* This program is free software; you can redistribute
*(GNU LGPL) which comes with this package.
*
*/
-package simgrid.msg;
+package org.simgrid.msg;
/**
* A host object represents a location (any possible place) where a process may run.
*
* @see Host.getByName().
*/
- public long bind;
-
+ private long bind;
+ /**
+ * Host name
+ */
+ private String name;
/**
* User data.
*/
private Object data;
- protected Host() {
+ /**
+ *
+ */
+ protected Host() {
this.bind = 0;
this.data = null;
};
*
* @param name The name of the host to get.
*
- * @exception HostNotFoundException if the name of the host is not valid.
+ * @return
+ * @exception HostNotFoundException if the name of the host is not valid.
* NativeException if the native version of this method failed.
*/
- public static Host getByName(String name)
- throws HostNotFoundException {
- if (name==null)
- throw new NullPointerException("No host can have a null name");
- return MsgNative.hostGetByName(name);
- }
-
+ public native static Host getByName(String name)
+ throws HostNotFoundException, NullPointerException;
/**
* This static method returns the count of the installed hosts.
*
* @return The count of the installed hosts.
- *
+ * FIXME: Not implemented.
*/
- public static int getCount() {
- return MsgNative.hostGetCount();
- }
+ public native static int getCount();
/**
* This static method return an instance to the host of the current process.
*
* @return The host on which the current process is executed.
*/
- public static Host currentHost() {
- return MsgNative.hostSelf();
- }
+ public native static Host currentHost();
/**
* This static method returns all of the hosts of the installed platform.
* @return An array containing all the hosts installed.
*
*/
- public static Host[] all() {
- return MsgNative.allHosts();
- }
+ public native static Host[] all();
/**
* This method returns the name of a host.
- *
* @return The name of the host.
*
*/
- public String getName() {
- return MsgNative.hostGetName(this);
+ public String getName() {
+ return name;
}
-
/**
* Sets the data of the host.
- *
- */
+ * @param data
+ */
public void setData(Object data) {
this.data = data;
}
/**
- * Gets the data of the host.
- */
+ * Gets the d ata of the host.
+ *
+ * @return
+ */
public Object getData() {
return this.data;
}
/**
* Checks whether a host has data.
- */
+ *
+ * @return
+ */
public boolean hasData() {
return null != this.data;
}
*
* @return The number of tasks currently running on a host.
*/
- public int getLoad() {
- return MsgNative.hostGetLoad(this);
- }
+ public native int getLoad();
/**
* This method returns the speed of the processor of a host,
* @return The speed of the processor of the host in flops.
*
*/
- public double getSpeed() {
- return MsgNative.hostGetSpeed(this);
- }
-
- /** This method tests if a host is avail. */
- public boolean isAvail() {
- return MsgNative.hostIsAvail(this);
- }
+ public native double getSpeed();
+ /**
+ * @brief Returns the value of a given host property.
+ */
+ public native String getProperty(String name);
+ /**
+ * @brief Change the value of a given host property.
+ */
+ public native void setProperty(String name, String value);
+ /** This method tests if a host is avail.
+ * @return
+ */
+ public native boolean isAvail();
+
+ /**
+ * Class initializer, to initialize various JNI stuff
+ */
+ public static native void nativeInit();
+ static {
+ nativeInit();
+ }
}
