X-Git-Url: https://bilbo.iut-bm.univ-fcomte.fr/and/gitweb/loba.git/blobdiff_plain/25ada1b3a5e1a439e4f2468094c3397f78fe9471..892e36c1af3105e5f548a4ef8b9f777b95d47fc2:/communicator.cpp diff --git a/communicator.cpp b/communicator.cpp index 1da6def..3516b68 100644 --- a/communicator.cpp +++ b/communicator.cpp @@ -1,7 +1,4 @@ #include -#include -#include -#include #include #include @@ -14,31 +11,15 @@ XBT_LOG_EXTERNAL_DEFAULT_CATEGORY(comm); #include "communicator.h" -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(); -} - communicator::communicator() : host(static_cast(MSG_host_get_data(MSG_host_self()))) - , ctrl_task(NULL) - , ctrl_comm(NULL) - , data_task(NULL) - , data_comm(NULL) - , receiver_mutex(xbt_mutex_init()) - , receiver_cond(xbt_cond_init()) { - xbt_mutex_acquire(receiver_mutex); + receiver_mutex.acquire(); receiver_thread = MSG_process_create("receiver", communicator::receiver_wrapper, this, MSG_host_self()); - // wait for the receiver to be ready - xbt_cond_wait(receiver_cond, receiver_mutex); - xbt_mutex_release(receiver_mutex); + receiver_cond.wait(receiver_mutex); // wait for the receiver to be ready + receiver_mutex.release(); } communicator::~communicator() @@ -47,32 +28,25 @@ communicator::~communicator() XBT_DEBUG("send finalize to receiver/ctrl"); task = MSG_task_create("finalize", 0.0, 0, NULL); - MSG_task_send(task, get_ctrl_mbox()); + MSG_task_send(task, host->get_ctrl_mbox()); XBT_DEBUG("send finalize to receiver/data"); task = MSG_task_create("finalize", 0.0, 0, NULL); - MSG_task_send(task, get_data_mbox()); + MSG_task_send(task, host->get_data_mbox()); - xbt_mutex_acquire(receiver_mutex); + receiver_mutex.acquire(); while (receiver_thread) { XBT_DEBUG("waiting for receiver to terminate"); - xbt_cond_wait(receiver_cond, receiver_mutex); + receiver_cond.wait(receiver_mutex); } - xbt_mutex_release(receiver_mutex); + receiver_mutex.release(); - if (ctrl_comm) - XBT_WARN("ctrl_comm is pending!"); - if (data_comm) - XBT_WARN("data_comm is pending!"); if (!received.empty()) XBT_WARN("lost %zu received message%s!", received.size(), ESSE(received.size())); if (!sent_comm.empty()) XBT_WARN("lost %zu sent message%s!", sent_comm.size(), ESSE(sent_comm.size())); - - xbt_cond_destroy(receiver_cond); - xbt_mutex_destroy(receiver_mutex); } void communicator::send(const char* dest, message* msg) @@ -89,46 +63,6 @@ void communicator::send(const char* dest, message* msg) sent_comm.push_back(comm); } -bool communicator::recv(message*& msg, m_host_t& from, double timeout) -{ - if (timeout != 0) { - volatile double deadline = - timeout > 0 ? MSG_get_clock() + timeout : 0.0; - xbt_mutex_acquire(receiver_mutex); - while (received.empty() && (!deadline || deadline > MSG_get_clock())) { - xbt_ex_t e; - XBT_DEBUG("waiting for a message to come"); - TRY { - if (deadline) - xbt_cond_timedwait(receiver_cond, receiver_mutex, - deadline - MSG_get_clock()); - else - xbt_cond_wait(receiver_cond, receiver_mutex); - } - CATCH (e) { - if (e.category != timeout_error) - RETHROW; - xbt_ex_free(e); - } - } - xbt_mutex_release(receiver_mutex); - } - - if (received.empty()) - return false; - - m_task_t task = received.front(); - received.pop(); - msg = static_cast(MSG_task_get_data(task)); - from = MSG_task_get_source(task); - MSG_task_destroy(task); - - XBT_DEBUG("received %s from %s", - msg->to_string().c_str(), MSG_host_get_name(from)); - - return true; -} - void communicator::flush(bool wait) { sent_comm.remove_if(comm_test_n_destroy); @@ -137,18 +71,20 @@ void communicator::flush(bool wait) std::copy(sent_comm.begin(), sent_comm.end(), comms); MSG_comm_waitall(comms, sent_comm.size(), -1.0); if (!MSG_WAIT_DESTROYS_COMMS) - std::for_each(sent_comm.begin(), sent_comm.end(), MSG_comm_destroy); + std::for_each(sent_comm.begin(), sent_comm.end(), + comm_check_n_destroy); sent_comm.clear(); } } -bool communicator::comm_test_n_destroy(msg_comm_t comm) +bool communicator::recv(message*& msg, m_host_t& from, double timeout) { - if (MSG_comm_test(comm)) { - MSG_comm_destroy(comm); - return true; - } else - return false; + XBT_DEBUG("waiting for a message to come"); + bool recvd = received.pop(msg, from, timeout); + if (recvd) + XBT_DEBUG("received %s from %s", + msg->to_string().c_str(), MSG_host_get_name(from)); + return recvd; } int communicator::receiver_wrapper(int, char* []) @@ -158,63 +94,79 @@ int communicator::receiver_wrapper(int, char* []) comm->receiver(); XBT_DEBUG("terminate"); - xbt_mutex_acquire(comm->receiver_mutex); + comm->receiver_mutex.acquire(); comm->receiver_thread = NULL; - xbt_cond_signal(comm->receiver_cond); - xbt_mutex_release(comm->receiver_mutex); + comm->receiver_cond.signal(); + comm->receiver_mutex.release(); return 0; } -void communicator::receiver1(msg_comm_t& comm, m_task_t& task, const char* mbox) +void communicator::receiver() { - MSG_comm_destroy(comm); - if (strcmp(MSG_task_get_name(task), "finalize")) { - XBT_DEBUG("received message on %s", mbox); - xbt_mutex_acquire(receiver_mutex); - received.push(task); - xbt_cond_signal(receiver_cond); - xbt_mutex_release(receiver_mutex); - task = NULL; - comm = MSG_task_irecv(&task, mbox); - } else { - XBT_DEBUG("received finalize on %s", mbox); - MSG_task_destroy(task); - task = NULL; - comm = NULL; + xbt_dynar_t comms = xbt_dynar_new(sizeof(msg_comm_t), NULL); + struct channel { + msg_comm_t comm; + m_task_t task; + const char* mbox; + }; + channel chan[] = { { NULL, NULL, host->get_ctrl_mbox() }, + { NULL, NULL, host->get_data_mbox() } }; + const int chan_size = (sizeof chan) / (sizeof chan[0]); + + for (int i = 0 ; i < chan_size ; ++i) { + chan[i].comm = MSG_task_irecv(&chan[i].task, chan[i].mbox); + xbt_dynar_push(comms, &chan[i].comm); } -} -void communicator::receiver() -{ - ctrl_comm = MSG_task_irecv(&ctrl_task, get_ctrl_mbox()); - data_comm = MSG_task_irecv(&data_task, get_data_mbox()); XBT_DEBUG("receiver ready"); - xbt_mutex_acquire(receiver_mutex); - xbt_cond_signal(receiver_cond); // signal master that we are ready - xbt_mutex_release(receiver_mutex); + receiver_mutex.acquire(); + receiver_cond.signal(); // signal master that we are ready + receiver_mutex.release(); - xbt_dynar_t comms = xbt_dynar_new(sizeof(msg_comm_t), NULL); - while (ctrl_comm || data_comm) { + while (!xbt_dynar_is_empty(comms)) { - if (ctrl_comm) - xbt_dynar_push(comms, &ctrl_comm); - if (data_comm) - xbt_dynar_push(comms, &data_comm); int index = MSG_comm_waitany(comms); msg_comm_t finished_comm = xbt_dynar_get_as(comms, index, msg_comm_t); - xbt_dynar_reset(comms); - - if (finished_comm == ctrl_comm) - receiver1(ctrl_comm, ctrl_task, get_ctrl_mbox()); - else if (finished_comm == data_comm) - receiver1(data_comm, data_task, get_data_mbox()); - else - THROW1(0, 0, "Cannot handle unknown comm -- %p", finished_comm); + channel* ch; + + for (ch = chan ; ch->comm != finished_comm ; ++ch) + /* nop */; + + comm_check_n_destroy(ch->comm); + if (strcmp(MSG_task_get_name(ch->task), "finalize")) { + XBT_DEBUG("received message on %s", ch->mbox); + received.push(ch->task); + ch->task = NULL; + ch->comm = MSG_task_irecv(&ch->task, ch->mbox); + xbt_dynar_set_as(comms, index, msg_comm_t, ch->comm); + } else { + XBT_DEBUG("received finalize on %s", ch->mbox); + MSG_task_destroy(ch->task); + ch->task = NULL; + ch->comm = NULL; + xbt_dynar_remove_at(comms, index, NULL); + } + } xbt_dynar_free(&comms); } +void communicator::comm_check_n_destroy(msg_comm_t comm) +{ + xbt_assert(MSG_comm_get_status(comm) == MSG_OK); + MSG_comm_destroy(comm); +} + +bool communicator::comm_test_n_destroy(msg_comm_t comm) +{ + if (MSG_comm_test(comm)) { + comm_check_n_destroy(comm); + return true; + } else + return false; +} + // Local variables: // mode: c++ // End: