X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/0746edb369906f57c331d9336bf85ae91094ad51..0bfafcab47ae9cd7856bd8d129404c33079d6afe:/examples/s4u/comm-waitany/s4u-comm-waitany.cpp diff --git a/examples/s4u/comm-waitany/s4u-comm-waitany.cpp b/examples/s4u/comm-waitany/s4u-comm-waitany.cpp deleted file mode 100644 index 6668c9e6e9..0000000000 --- a/examples/s4u/comm-waitany/s4u-comm-waitany.cpp +++ /dev/null @@ -1,126 +0,0 @@ -/* Copyright (c) 2010-2021. 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_any() to wait for the first occurring event. - * - * 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 occur concurrently. - * - * The sender then loops until there is no ongoing communication. Using wait_any() ensures that the sender - * will notice events as soon as they occur even if it does not follow the order of the container. - * - * Here, finalize messages will terminate earlier because their size is 0, so they travel faster than the - * other messages of this application. As expected, the trace shows that the finalize of worker 1 is - * processed before 'Message 5' that is sent to worker 0. - * - */ - -#include "simgrid/s4u.hpp" -#include -#include -#include - -XBT_LOG_NEW_DEFAULT_CATEGORY(s4u_comm_waitall, "Messages specific for this s4u example"); - -class Sender { - long messages_count; /* - number of messages */ - long receivers_count; /* - number of receivers */ - long msg_size; /* - message size in bytes */ - -public: - explicit Sender(std::vector args) - { - xbt_assert(args.size() == 4, "Expecting 3 parameters from the XML deployment file but got %zu", args.size()); - messages_count = std::stol(args[1]); - msg_size = std::stol(args[2]); - receivers_count = std::stol(args[3]); - } - void operator()() const - { - /* Vector in which we store all ongoing communications */ - std::vector pending_comms; - - /* Make a vector of the mailboxes to use */ - std::vector 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 it - auto* 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 termination. - * - * This loop waits for first terminating message with wait_any() and remove it with erase(), until all comms are - * terminated - * Even in this simple example, the pending comms do not terminate in the exact same order of creation. - */ - while (not pending_comms.empty()) { - int changed_pos = simgrid::s4u::Comm::wait_any(&pending_comms); - pending_comms.erase(pending_comms.begin() + changed_pos); - if (changed_pos != 0) - XBT_INFO("Remove the %dth pending comm: it terminated earlier than another comm that was initiated first.", - changed_pos); - } - - XBT_INFO("Goodbye now!"); - } -}; - -/* Receiver actor expects 1 argument: its ID */ -class Receiver { - simgrid::s4u::Mailbox* mbox; - -public: - explicit Receiver(std::vector args) - { - xbt_assert(args.size() == 2, "Expecting one parameter from the XML deployment file but got %zu", args.size()); - std::string mboxName = std::string("receiver-") + args[1]; - mbox = simgrid::s4u::Mailbox::by_name(mboxName); - } - void operator()() - { - XBT_INFO("Wait for my first message"); - for (bool cont = true; cont;) { - auto received = mbox->get_unique(); - XBT_INFO("I got a '%s'.", received->c_str()); - cont = (*received != "finalize"); // If it's a finalize message, we're done - // Receiving the message was all we were supposed to do - } - } -}; - -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_actor("sender"); - e.register_actor("receiver"); - - e.load_platform(argv[1]); - e.load_deployment(argv[2]); - e.run(); - - return 0; -}