+++ /dev/null
-/* Copyright (c) 2010-2020. 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. */
-
-/* This example shows how to use simgrid::s4u::this_actor::wait() to wait for a given communication.
- *
- * As for the other asynchronous examples, the sender initiate all the messages it wants to send and
- * pack the resulting simgrid::s4u::CommPtr objects in a vector. All messages thus occurs concurrently.
- *
- * The sender then loops until there is no ongoing communication.
- */
-
-#include "simgrid/s4u.hpp"
-#include <cstdlib>
-#include <iostream>
-#include <string>
-
-XBT_LOG_NEW_DEFAULT_CATEGORY(s4u_async_wait, "Messages specific for this s4u example");
-
-static void sender(int argc, char** argv)
-{
- xbt_assert(argc == 4, "Expecting 3 parameters from the XML deployment file but got %d", argc);
- long messages_count = std::stol(argv[1]); /* - number of tasks */
- double msg_size = std::stol(argv[2]); /* - communication cost in bytes */
- long receivers_count = std::stod(argv[3]); /* - number of receivers */
-
- /* Vector in which we store all ongoing communications */
- std::vector<simgrid::s4u::CommPtr> pending_comms;
-
- /* Make a vector of the mailboxes to use */
- std::vector<simgrid::s4u::Mailbox*> mboxes;
- for (int i = 0; i < receivers_count; i++)
- mboxes.push_back(simgrid::s4u::Mailbox::by_name(std::string("receiver-") + std::to_string(i)));
-
- /* Start dispatching all messages to receivers, in a round robin fashion */
- for (int i = 0; i < messages_count; i++) {
- std::string msg_content = std::string("Message ") + std::to_string(i);
- // Copy the data we send: the 'msg_content' variable is not a stable storage location.
- // It will be destroyed when this actor leaves the loop, ie before the receiver gets the data
- std::string* payload = new std::string(msg_content);
-
- XBT_INFO("Send '%s' to '%s'", msg_content.c_str(), mboxes[i % receivers_count]->get_cname());
-
- /* Create a communication representing the ongoing communication, and store it in pending_comms */
- simgrid::s4u::CommPtr comm = mboxes[i % receivers_count]->put_async(payload, msg_size);
- pending_comms.push_back(comm);
- }
-
- /* Start sending messages to let the workers know that they should stop */
- for (int i = 0; i < receivers_count; i++) {
- XBT_INFO("Send 'finalize' to 'receiver-%d'", i);
- simgrid::s4u::CommPtr comm = mboxes[i]->put_async(new std::string("finalize"), 0);
- pending_comms.push_back(comm);
- }
- XBT_INFO("Done dispatching all messages");
-
- /* Now that all message exchanges were initiated, wait for their completion, in order of creation. */
- while (not pending_comms.empty()) {
- simgrid::s4u::CommPtr comm = pending_comms.back();
- comm->wait();
- pending_comms.pop_back(); // remove it from the list
- }
-
- XBT_INFO("Goodbye now!");
-}
-
-/* Receiver actor expects 1 argument: its ID */
-static void receiver(int argc, char** argv)
-{
- xbt_assert(argc == 2, "Expecting one parameter from the XML deployment file but got %d", argc);
- simgrid::s4u::Mailbox* mbox = simgrid::s4u::Mailbox::by_name(std::string("receiver-") + argv[1]);
-
- XBT_INFO("Wait for my first message");
- for (bool cont = true; cont;) {
- const std::string* received = static_cast<std::string*>(mbox->get());
- XBT_INFO("I got a '%s'.", received->c_str());
- if (*received == "finalize")
- cont = false; // If it's a finalize message, we're done.
- delete received;
- }
-}
-
-int main(int argc, char *argv[])
-{
- xbt_assert(argc > 2, "Usage: %s platform_file deployment_file\n", argv[0]);
-
- simgrid::s4u::Engine e(&argc, argv);
- e.register_function("sender", &sender);
- e.register_function("receiver", &receiver);
-
- e.load_platform(argv[1]);
- e.load_deployment(argv[2]);
- e.run();
-
- return 0;
-}
