X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/77bbf3027c4240a2e833209a3a3f186589da8577..0bfafcab47ae9cd7856bd8d129404c33079d6afe:/examples/s4u/dht-chord/s4u-dht-chord.hpp

diff --git a/examples/s4u/dht-chord/s4u-dht-chord.hpp b/examples/s4u/dht-chord/s4u-dht-chord.hpp
deleted file mode 100644
index ff05252d82..0000000000
--- a/examples/s4u/dht-chord/s4u-dht-chord.hpp
+++ /dev/null
@@ -1,176 +0,0 @@
-/* Copyright (c) 2016-2017. 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. */
-
-#ifndef S4U_CHORD_HPP
-#define S4U_CHORD_HPP
-#include "simgrid/s4u.hpp"
-#include <string>
-#include <xbt/RngStream.h>
-#include <xbt/ex.hpp>
-#include <xbt/str.h>
-
-#define MAX_SIMULATION_TIME 1000
-#define PERIODIC_STABILIZE_DELAY 20
-#define PERIODIC_FIX_FINGERS_DELAY 120
-#define PERIODIC_CHECK_PREDECESSOR_DELAY 120
-#define PERIODIC_LOOKUP_DELAY 10
-#define SLEEP_DELAY 4.9999
-
-extern int nb_bits;
-extern int nb_keys;
-extern int timeout;
-extern int* powers2;
-
-class HostChord {
-  RngStream stream_;
-  simgrid::s4u::Host* host = nullptr;
-
-public:
-  static simgrid::xbt::Extension<simgrid::s4u::Host, HostChord> EXTENSION_ID;
-
-  explicit HostChord(simgrid::s4u::Host* ptr) : host(ptr)
-  {
-    std::string descr = std::string("RngSream<") + host->getCname() + ">";
-    stream_           = RngStream_CreateStream(descr.c_str());
-  }
-
-  ~HostChord() { RngStream_DeleteStream(&stream_); };
-
-  RngStream getStream() { return stream_; };
-};
-
-/* Types of tasks exchanged between nodes. */
-enum e_message_type_t {
-  FIND_SUCCESSOR,
-  FIND_SUCCESSOR_ANSWER,
-  GET_PREDECESSOR,
-  GET_PREDECESSOR_ANSWER,
-  NOTIFY,
-  SUCCESSOR_LEAVING,
-  PREDECESSOR_LEAVING,
-  PREDECESSOR_ALIVE,
-  PREDECESSOR_ALIVE_ANSWER
-};
-
-class ChordMessage {
-public:
-  e_message_type_t type;              // type of message
-  std::string issuer_host_name;       // used for logging
-  int request_id     = -1;            // id (used by some types of messages)
-  int request_finger = 1;             // finger parameter (used by some types of messages)
-  int answer_id      = -1;            // answer (used by some types of messages)
-  simgrid::s4u::MailboxPtr answer_to; // mailbox to send an answer to (if any)
-
-  explicit ChordMessage(e_message_type_t type)
-      : type(type), issuer_host_name(simgrid::s4u::this_actor::getHost()->getName())
-  {
-  }
-
-  ~ChordMessage() = default;
-
-  static void destroy(void* message);
-};
-
-class Node {
-  int known_id_      = -1;
-  double start_time_ = -1;
-  double deadline_   = -1;
-  bool joined        = false;
-  int id_;                           // my id
-  int pred_id_ = -1;                 // predecessor id
-  simgrid::s4u::MailboxPtr mailbox_; // my mailbox
-  int* fingers_;                     // finger table,(fingers[0] is my successor)
-  int next_finger_to_fix;            // index of the next finger to fix in fix_fingers()
-  RngStream stream;
-
-public:
-  explicit Node(std::vector<std::string> args);
-  Node(const Node&) = delete;
-  ~Node();
-  void join(int known_id);
-  void leave();
-  void notifyAndQuit();
-
-  void randomLookup();
-  void setFinger(int finger_index, int id);
-  void fixFingers();
-  void printFingerTable();
-
-  void setPredecessor(int predecessor_id);
-  void checkPredecessor();
-  int remoteGetPredecessor(int ask_to);
-  int closestPrecedingFinger(int id);
-  int findSuccessor(int id);
-  int remoteFindSuccessor(int ask_to, int id);
-
-  void notify(int predecessor_candidate_id);
-  void remoteNotify(int notify_id, int predecessor_candidate_id);
-  void stabilize();
-  void handleMessage(ChordMessage* message);
-
-  void operator()()
-  {
-    simgrid::s4u::this_actor::sleep_for(start_time_);
-    if (known_id_ == -1) {
-      setPredecessor(-1); // -1 means that I have no predecessor
-      printFingerTable();
-      joined = true;
-    } else {
-      join(known_id_);
-    }
-
-    if (not joined)
-      return;
-    void* data                         = nullptr;
-    double now                         = simgrid::s4u::Engine::getClock();
-    double next_stabilize_date         = start_time_ + PERIODIC_STABILIZE_DELAY;
-    double next_fix_fingers_date       = start_time_ + PERIODIC_FIX_FINGERS_DELAY;
-    double next_check_predecessor_date = start_time_ + PERIODIC_CHECK_PREDECESSOR_DELAY;
-    double next_lookup_date            = start_time_ + PERIODIC_LOOKUP_DELAY;
-    simgrid::s4u::CommPtr comm_receive = nullptr;
-    while ((now < (start_time_ + deadline_)) && now < MAX_SIMULATION_TIME) {
-      if (comm_receive == nullptr)
-        comm_receive = mailbox_->get_async(&data);
-      while ((now < (start_time_ + deadline_)) && now < MAX_SIMULATION_TIME && not comm_receive->test()) {
-        // no task was received: make some periodic calls
-        if (now >= next_stabilize_date) {
-          stabilize();
-          next_stabilize_date = simgrid::s4u::Engine::getClock() + PERIODIC_STABILIZE_DELAY;
-        } else if (now >= next_fix_fingers_date) {
-          fixFingers();
-          next_fix_fingers_date = simgrid::s4u::Engine::getClock() + PERIODIC_FIX_FINGERS_DELAY;
-        } else if (now >= next_check_predecessor_date) {
-          checkPredecessor();
-          next_check_predecessor_date = simgrid::s4u::Engine::getClock() + PERIODIC_CHECK_PREDECESSOR_DELAY;
-        } else if (now >= next_lookup_date) {
-          randomLookup();
-          next_lookup_date = simgrid::s4u::Engine::getClock() + PERIODIC_LOOKUP_DELAY;
-        } else {
-          // nothing to do: sleep for a while
-          simgrid::s4u::this_actor::sleep_for(SLEEP_DELAY);
-        }
-        now = simgrid::s4u::Engine::getClock();
-      }
-
-      if (data != nullptr) {
-        ChordMessage* message = static_cast<ChordMessage*>(data);
-        handleMessage(message);
-        comm_receive = nullptr;
-        data         = nullptr;
-      }
-      now = simgrid::s4u::Engine::getClock();
-    }
-    if (comm_receive != nullptr) {
-      if (comm_receive->test())
-        delete static_cast<ChordMessage*>(data);
-      else
-        comm_receive->cancel();
-    }
-    // leave the ring
-    leave();
-  }
-};
-
-#endif