X-Git-Url: https://bilbo.iut-bm.univ-fcomte.fr/and/gitweb/loba.git/blobdiff_plain/f29b38ef2a056daa14bbfda2fce78063faa773d4..e02d85948b5f10d8b37e39ec94d915c48f46a15a:/communicator.cpp?ds=sidebyside diff --git a/communicator.cpp b/communicator.cpp index b78b1c3..e6653eb 100644 --- a/communicator.cpp +++ b/communicator.cpp @@ -1,74 +1,154 @@ +#include "communicator.h" + #include -#include +#include +#include #include #include -#include "communicator.h" +#include "misc.h" +#include "options.h" -// XBT_LOG_EXTERNAL_DEFAULT_CATEGORY(simu); -XBT_LOG_NEW_DEFAULT_SUBCATEGORY(comm, simu, - "Messages from asynchronous pipes"); - -namespace { - bool comm_test_n_destroy(msg_comm_t& comm) - { - if (MSG_comm_test(comm)) { - MSG_comm_destroy(comm); - return true; - } else - return false; - } +XBT_LOG_EXTERNAL_DEFAULT_CATEGORY(comm); + +std::string message::to_string() +{ + static const char* str[] = { "INFO", "CREDIT", "LOAD", + "CTRL_CLOSE", "DATA_CLOSE" }; + std::ostringstream oss; + oss << str[type] << ": " << amount; + return oss.str(); } +const int communicator::send_count_before_flush = 16; + communicator::communicator() + : host((hostdata* )MSG_host_get_data(MSG_host_self())) + , send_counter(0) + , ctrl_task(NULL) + , ctrl_comm(NULL) + , ctrl_close_is_last(false) + , data_task(NULL) + , data_comm(NULL) + , data_close_is_last(false) { - const char* hostname = MSG_host_get_name(MSG_host_self()); - size_t len = std::strlen(hostname); - recv_mbox = new char[len + 1]; - strcpy(recv_mbox, hostname); - recv_task = NULL; - recv_comm = MSG_task_irecv(&recv_task, recv_mbox); } communicator::~communicator() { - send_acknowledge(); + if (ctrl_comm) + WARN0("ctrl_comm is pending!"); + if (data_comm) + WARN0("data_comm is pending!"); if (!sent_comm.empty()) - WARN1("Lost %ld send communications!", (long )sent_comm.size()); - delete[] recv_mbox; + WARN2("lost %ld send communication%s!", + (long )sent_comm.size(), ESSE(sent_comm.size())); } +void communicator::listen() +{ + ctrl_comm = MSG_task_irecv(&ctrl_task, get_ctrl_mbox()); + data_comm = MSG_task_irecv(&data_task, get_data_mbox()); +} -void communicator::send(m_task_t task, const char *dest) +void communicator::send(const char* dest, message* msg) { - sent_comm.push_back(MSG_task_isend(task, dest)); - send_acknowledge(); + DEBUG2("send %s to %s", msg->to_string().c_str(), dest); + double msg_size = sizeof *msg; + if (msg->get_type() == message::LOAD) + msg_size += opt::comm_cost(msg->get_amount()); + m_task_t task = MSG_task_create("message", 0.0, msg_size, msg); + msg_comm_t comm = MSG_task_isend(task, dest); + sent_comm.push_back(comm); + + if (++send_counter >= send_count_before_flush) { + flush(false); + send_counter = 0; + } } -void communicator::send(m_task_t task, const std::string& dest) +bool communicator::recv(message*& msg, m_host_t& from, bool wait) { - send(task, dest.c_str()); + bool restart; + msg = NULL; + + do { + if (ctrl_comm && comm_test_n_destroy(ctrl_comm)) { + msg = (message* )MSG_task_get_data(ctrl_task); + from = MSG_task_get_source(ctrl_task); + MSG_task_destroy(ctrl_task); + ctrl_task = NULL; + ctrl_comm = + (!ctrl_close_is_last || msg->get_type() != message::CTRL_CLOSE) + ? MSG_task_irecv(&ctrl_task, get_ctrl_mbox()) + : NULL; + + } else if (data_comm && comm_test_n_destroy(data_comm)) { + msg = (message* )MSG_task_get_data(data_task); + from = MSG_task_get_source(data_task); + MSG_task_destroy(data_task); + data_task = NULL; + data_comm = + (!data_close_is_last || msg->get_type() != message::DATA_CLOSE) + ? MSG_task_irecv(&data_task, get_data_mbox()) + : NULL; + } + + restart = wait && !msg && (ctrl_comm || data_comm); + if (restart) { + xbt_dynar_t comms = xbt_dynar_new(sizeof(msg_comm_t), NULL); + if (ctrl_comm) + xbt_dynar_push(comms, &ctrl_comm); + if (data_comm) + xbt_dynar_push(comms, &data_comm); + MSG_comm_waitany(comms); + xbt_dynar_free(&comms); + } + } while (restart); + + if (msg) + DEBUG2("received %s from %s", + msg->to_string().c_str(), MSG_host_get_name(from)); + + return msg != NULL; } -m_task_t communicator::recv() -{ - m_task_t task = NULL; - if (comm_test_n_destroy(recv_comm)) { - task = recv_task; - recv_task = NULL; - recv_comm = MSG_task_irecv(&recv_task, recv_mbox); +void communicator::flush(bool wait) +{ + using namespace std::tr1; + using namespace std::tr1::placeholders; + + sent_comm.remove_if(comm_test_n_destroy); + if (wait && !sent_comm.empty()) { + xbt_dynar_t comms = xbt_dynar_new(sizeof(msg_comm_t), NULL); + while (!sent_comm.empty()) { + std::for_each(sent_comm.begin(), sent_comm.end(), + bind(xbt_dynar_push, + comms, bind(misc::address(), _1))); + MSG_comm_waitany(comms); + xbt_dynar_reset(comms); + sent_comm.remove_if(comm_test_n_destroy); + } + xbt_dynar_free(&comms); } - return task; } -int communicator::sent_count() +void communicator::next_close_on_ctrl_is_last() +{ + ctrl_close_is_last = true; +} + +void communicator::next_close_on_data_is_last() { - send_acknowledge(); - return sent_comm.size(); + data_close_is_last = true; } -void communicator::send_acknowledge() +bool communicator::comm_test_n_destroy(msg_comm_t comm) { - std::remove_if(sent_comm.begin(), sent_comm.end(), comm_test_n_destroy); + if (MSG_comm_test(comm)) { + MSG_comm_destroy(comm); + return true; + } else + return false; } // Local variables: