-/* Copyright (c) 2010-2017. The SimGrid Team. All rights reserved. */
+/* 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. */
*/
#include "simgrid/s4u.hpp"
-#include "xbt/str.h"
#include <cstdlib>
#include <iostream>
+#include <string>
-XBT_LOG_NEW_DEFAULT_CATEGORY(msg_async_wait, "Messages specific for this s4u example");
+XBT_LOG_NEW_DEFAULT_CATEGORY(s4u_async_wait, "Messages specific for this s4u example");
-class Sender {
- long messages_count; /* - number of tasks */
- long receivers_count; /* - number of receivers */
- double msg_size; /* - communication cost in bytes */
-
-public:
- explicit Sender(std::vector<std::string> 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::stod(args[2]);
- receivers_count = std::stol(args[3]);
+static int 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: 'msg_content' is not a stable storage location.
+ // It will be destroyed when this actor leaves the loop, ie before the receiver gets it
+ 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);
}
- void operator()()
- {
- std::vector<simgrid::s4u::CommPtr> pending_comms;
-
- /* Start dispatching all messages to receivers, in a round robin fashion */
- for (int i = 0; i < messages_count; i++) {
-
- std::string mboxName = std::string("receiver-") + std::to_string(i % receivers_count);
- simgrid::s4u::MailboxPtr mbox = simgrid::s4u::Mailbox::byName(mboxName);
- std::string msgName = std::string("Message ") + std::to_string(i);
- char* payload = xbt_strdup(msgName.c_str()); // copy the data we send: 'msgName' is not a stable storage location
-
- XBT_INFO("Send '%s' to '%s'", msgName.c_str(), mboxName.c_str());
- /* Create a communication representing the ongoing communication */
- simgrid::s4u::CommPtr comm = mbox->put_async((void*)payload, msg_size);
- /* Add this comm to the vector of all known comms */
- 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++) {
- std::string mboxName = std::string("receiver-") + std::to_string(i % receivers_count);
- simgrid::s4u::MailboxPtr mbox = simgrid::s4u::Mailbox::byName(mboxName);
- char* payload = xbt_strdup("finalize"); // Make a copy of the data we will send
-
- simgrid::s4u::CommPtr comm = mbox->put_async((void*)payload, 0);
- pending_comms.push_back(comm);
- XBT_INFO("Send 'finalize' to 'receiver-%ld'", i % receivers_count);
- }
- 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(); // we could provide a timeout as a parameter
- pending_comms.pop_back(); // remove it from the list
- }
-
- XBT_INFO("Goodbye now!");
+
+ /* 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");
-/* Receiver actor expects 1 argument: its ID */
-class Receiver {
- simgrid::s4u::MailboxPtr mbox;
-
-public:
- explicit Receiver(std::vector<std::string> 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::byName(mboxName);
+ /* 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
}
- void operator()()
- {
- XBT_INFO("Wait for my first message");
- while (1) {
- char* received = static_cast<char*>(mbox->get());
- XBT_INFO("I got a '%s'.", received);
- if (std::strcmp(received, "finalize") == 0) { /* If it's a finalize message, we're done */
- xbt_free(received);
- break;
- }
- /* Otherwise receiving the message was all we were supposed to do */
- xbt_free(received);
- }
+ XBT_INFO("Goodbye now!");
+ return 0;
+}
+
+/* Receiver actor expects 1 argument: its ID */
+static int 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;
}
-};
+ return 0;
+}
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.registerFunction<Sender>("sender");
- e.registerFunction<Receiver>("receiver");
+ e.register_function("sender", &sender);
+ e.register_function("receiver", &receiver);
- e.loadPlatform(argv[1]);
- e.loadDeployment(argv[2]);
+ e.load_platform(argv[1]);
+ e.load_deployment(argv[2]);
e.run();
return 0;
