+++ /dev/null
-/*
- * Bindings to the MSG hosts
- *
- * Copyright 2006,2007,2010 The SimGrid Team
- * All right 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.
- *
- */
-package simgrid.msg;
-import java.lang.String;
-
-/**
- * A host object represents a location (any possible place) where a process may run.
- * Thus it is represented as a physical resource with computing capabilities, some
- * mailboxes to enable running process to communicate with remote ones, and some private
- * data that can be only accessed by local process. An instance of this class is always
- * binded with the corresponding native host. All the native hosts are automatically created
- * during the call of the method Msg.createEnvironment(). This method take as parameter a
- * platform file which describes all elements of the platform (host, link, root..).
- * You cannot create a host yourself.
- *
- * The best way to get an host instance is to call the static method
- * Host.getByName().
- *
- * For example to get the instance of the host. If your platform
- * file description contains an host named "Jacquelin" :
- *
- * \verbatim
-Host jacquelin;
-
-try {
- jacquelin = Host.getByName("Jacquelin");
-} catch(HostNotFoundException e) {
- System.err.println(e.toString());
-}
-...
-\endverbatim
- *
- */
-public class Host {
-
- /**
- * This attribute represents a bind between a java host object and
- * a native host. Even if this attribute is public you must never
- * access to it. It is set automatically during the call of the
- * static method Host.getByName().
- *
- * @see Host.getByName().
- */
- public long bind;
-
-
- /**
- * User data.
- */
- private Object data;
- protected Host() {
- this.bind = 0;
- this.data = null;
- };
-
- /**
- * This static method gets an host instance associated with a native
- * host of your platform. This is the best way to get a java host object.
- *
- * @param name The name of the host to get.
- *
- * @exception HostNotFoundException if the name of the host is not valid.
- * MsgException if the native version of this method failed.
- */
- public static Host getByName(String name)
- throws HostNotFoundException, NativeException, JniException {
- return MsgNative.hostGetByName(name);
- }
-
- /**
- * This static method returns the count of the installed hosts.
- *
- * @return The count of the installed hosts.
- *
- */
- public static int getCount() throws NativeException, JniException {
- return MsgNative.hostGetCount();
- }
-
- /**
- * This static method return an instance to the host of the current process.
- *
- * @return The host on which the current process is executed.
- *
- * @exception MsgException if the native version of this method failed.
- */
- public static Host currentHost() throws JniException {
- return MsgNative.hostSelf();
- }
-
- /**
- * This static method returns all of the hosts of the installed platform.
- *
- * @return An array containing all the hosts installed.
- *
- * @exception MsgException if the native version of this method failed.
- */
- public static Host[] all() throws JniException, NativeException {
- return MsgNative.allHosts();
- }
-
- /**
- * This method returns the name of a host.
- *
- * @return The name of the host.
- *
- * @exception InvalidHostException if the host is not valid.
- */
- public String getName() throws NativeException, JniException {
- return MsgNative.hostGetName(this);
- }
-
- /**
- * This method sets the data of the host.
- *
- */
- public void setData(Object data) {
- this.data = data;
- }
- /**
- * This method gets the data of the host.
- */
- public Object getData() {
- return this.data;
- }
-
- /**
- * This function tests if a host has data.
- */
- public boolean hasData() {
- return null != this.data;
- }
-
- /**
- * This method returns the number of tasks currently running on a host.
- * The external load is not taken in account.
- *
- * @return The number of tasks currently running on a host.
- *
- * @exception InvalidHostException if the host is invalid.
- *
- */
- public int getLoad() throws JniException {
- return MsgNative.hostGetLoad(this);
- }
-
- /**
- * This method returns the speed of the processor of a host,
- * regardless of the current load of the machine.
- *
- * @return The speed of the processor of the host in flops.
- *
- * @exception InvalidHostException if the host is not valid.
- *
- */
- public double getSpeed() throws JniException {
- return MsgNative.hostGetSpeed(this);
- }
-
- /**
- * This method tests if a host is avail.
- *
- * @exception JniException if the host is not valid.
- */
- public boolean isAvail() throws JniException {
- return MsgNative.hostIsAvail(this);
- }
-
- /** Send the given task to mailbox identified by the default alias */
- public void send(Task task) throws JniException, NativeException {
- String alias = this.getName() + ":" + Process.currentProcess().msgName();
- MsgNative.taskSend(alias, task, -1);
- }
-
- /** Send the given task to the mailbox associated with the specified alias */
-
- public void send(String alias, Task task) throws JniException, NativeException {
- MsgNative.taskSend(alias, task, -1);
- }
-
- /** Send the given task in the mailbox associated with the alias of the current host (waiting at most \a timeout seconds) */
- public void send(Task task, double timeout) throws JniException, NativeException {
- String alias = this.getName() + ":" + Process.currentProcess().msgName();
- MsgNative.taskSend(alias, task, timeout);
- }
-
- /** Send the given task to mailbox associated with the specified alias (waiting at most \a timeout seconds) */
- public void send(String alias, Task task, double timeout) throws JniException, NativeException {
- MsgNative.taskSend(alias, task, timeout);
- }
-
- /** Send the given task to the mailbox associated with the default alias (capping the emision rate to \a maxrate) */
- public void sendBounded(Task task, double maxrate) throws JniException, NativeException {
- String alias = this.getName() + ":" + Process.currentProcess().msgName();
-
- MsgNative.taskSendBounded(alias, task, maxrate);
- }
-
- /** Send the given task to the mailbox associated with the specified alias (capping the emision rate to \a maxrate) */
- public void sendBounded(String alias, Task task, double maxrate) throws JniException, NativeException {
- MsgNative.taskSendBounded(alias, task, maxrate);
- }
-}
