1 /* Copyright (c) 2006-2015. The SimGrid Team. All rights reserved. */
3 /* This program is free software; you can redistribute it and/or modify it
4 * under the terms of the license (GNU LGPL) which comes with this package. */
6 #ifndef SIMGRID_S4U_ACTOR_HPP
7 #define SIMGRID_S4U_ACTOR_HPP
11 #include <simgrid/simix.h>
12 #include <simgrid/s4u/forward.hpp>
17 /** @brief Simulation Agent
19 * An actor may be defined as a code executing in a location (host).
21 * All actors should be started from the XML deployment file (using the @link{s4u::Engine::loadDeployment()}),
22 * even if you can also start new actors directly.
23 * Separating the deployment in the XML from the logic in the code is a good habit as it makes your simulation easier
24 * to adapt to new settings.
26 * The code that you define for a given actor should be placed in the main method that is virtual.
27 * For example, a Worker actor should be declared as follows:
30 * #include "s4u/actor.hpp"
34 * printf("Hello s4u");
39 * new Actor("worker", host, Worker());
43 XBT_PUBLIC_CLASS Actor {
44 explicit Actor(smx_process_t smx_proc);
46 Actor(const char* name, s4u::Host *host, double killTime, std::function<void()> code);
47 Actor(const char* name, s4u::Host *host, std::function<void()> code)
48 : Actor(name, host, -1, std::move(code)) {};
50 Actor(const char* name, s4u::Host *host, C code)
51 : Actor(name, host, -1, std::function<void()>(std::move(code))) {}
54 /** Retrieves the actor that have the given PID (or NULL if not existing) */
55 //static Actor *byPid(int pid); not implemented
57 /** Retrieves the name of that actor */
58 const char* getName();
59 /** Retrieves the host on which that actor is running */
61 /** Retrieves the PID of that actor */
64 /** If set to true, the actor will automatically restart when its host reboots */
65 void setAutoRestart(bool autorestart);
66 /** Sets the time at which that actor should be killed */
67 void setKillTime(double time);
68 /** Retrieves the time at which that actor will be killed (or -1 if not set) */
71 /** Ask the actor to die.
73 * It will only notice your request when doing a simcall next time (a communication or similar).
74 * SimGrid sometimes have issues when you kill actors that are currently communicating and such. We are working on it to fix the issues.
78 static void kill(int PID);
80 // Static methods on all actors:
82 /** Ask kindly to all actors to die. Only the issuer will survive. */
83 static void killAll();
86 smx_process_t getInferior() {return pimpl_;}
88 smx_process_t pimpl_ = nullptr;
91 namespace this_actor {
93 // Static methods working on the current actor:
95 /** Block the actor sleeping for that amount of seconds (may throws hostFailure) */
96 XBT_PUBLIC(void) sleep(double duration);
98 /** Block the actor, computing the given amount of flops */
99 XBT_PUBLIC(e_smx_state_t) execute(double flop);
101 /** Block the actor until it gets a message from the given mailbox.
103 * See \ref Comm for the full communication API (including non blocking communications).
105 XBT_PUBLIC(void*) recv(Mailbox &chan);
107 /** Block the actor until it delivers a message of the given simulated size to the given mailbox
109 * See \ref Comm for the full communication API (including non blocking communications).
111 XBT_PUBLIC(void) send(Mailbox &chan, void*payload, size_t simulatedSize);
115 }} // namespace simgrid::s4u
117 #endif /* SIMGRID_S4U_ACTOR_HPP */
121 public final class Actor {
123 public Actor(String name, Host host, double killTime, Runnable code);