X-Git-Url: https://bilbo.iut-bm.univ-fcomte.fr/and/gitweb/loba.git/blobdiff_plain/c86e5ff42db3495538c8b48cb7ea0943a13702b7..f2850cc1d935992994177c2c266141d5304d4694:/communicator.cpp diff --git a/communicator.cpp b/communicator.cpp index 0808426..96cd598 100644 --- a/communicator.cpp +++ b/communicator.cpp @@ -25,19 +25,16 @@ std::string message::to_string() communicator::communicator() : host(static_cast(MSG_host_get_data(MSG_host_self()))) - , mutex(xbt_mutex_init()) - , cond(xbt_cond_init()) - , 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(mutex); - receiver_process = + xbt_mutex_acquire(receiver_mutex); + receiver_thread = MSG_process_create("receiver", communicator::receiver_wrapper, this, MSG_host_self()); - xbt_cond_wait(cond, mutex); // wait for the receiver to be ready - xbt_mutex_release(mutex); + // wait for the receiver to be ready + xbt_cond_wait(receiver_cond, receiver_mutex); + xbt_mutex_release(receiver_mutex); } communicator::~communicator() @@ -46,32 +43,28 @@ 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(mutex); - while (receiver_process) { + xbt_mutex_acquire(receiver_mutex); + while (receiver_thread) { XBT_DEBUG("waiting for receiver to terminate"); - xbt_cond_wait(cond, mutex); + xbt_cond_wait(receiver_cond, receiver_mutex); } - xbt_mutex_release(mutex); + xbt_mutex_release(receiver_mutex); - if (ctrl_comm) - XBT_WARN("ctrl_comm is pending!"); - if (data_comm) - XBT_WARN("data_comm is pending!"); if (!received.empty()) - XBT_WARN("lost %lu received message%s!", - (unsigned long )received.size(), ESSE(received.size())); + XBT_WARN("lost %zu received message%s!", + received.size(), ESSE(received.size())); if (!sent_comm.empty()) - XBT_WARN("lost %lu sent message%s!", - (unsigned long )sent_comm.size(), ESSE(sent_comm.size())); + XBT_WARN("lost %zu sent message%s!", + sent_comm.size(), ESSE(sent_comm.size())); - xbt_cond_destroy(cond); - xbt_mutex_destroy(mutex); + xbt_cond_destroy(receiver_cond); + xbt_mutex_destroy(receiver_mutex); } void communicator::send(const char* dest, message* msg) @@ -93,15 +86,16 @@ 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(mutex); + 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(cond, mutex, deadline - MSG_get_clock()); + xbt_cond_timedwait(receiver_cond, receiver_mutex, + deadline - MSG_get_clock()); else - xbt_cond_wait(cond, mutex); + xbt_cond_wait(receiver_cond, receiver_mutex); } CATCH (e) { if (e.category != timeout_error) @@ -109,7 +103,7 @@ bool communicator::recv(message*& msg, m_host_t& from, double timeout) xbt_ex_free(e); } } - xbt_mutex_release(mutex); + xbt_mutex_release(receiver_mutex); } if (received.empty()) @@ -135,92 +129,93 @@ 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) -{ - if (MSG_comm_test(comm)) { - MSG_comm_destroy(comm); - return true; - } else - return false; -} - int communicator::receiver_wrapper(int, char* []) { communicator* comm; comm = static_cast(MSG_process_get_data(MSG_process_self())); - int result = comm->receiver(); + comm->receiver(); XBT_DEBUG("terminate"); - xbt_mutex_acquire(comm->mutex); - comm->receiver_process = NULL; - xbt_cond_signal(comm->cond); - xbt_mutex_release(comm->mutex); + xbt_mutex_acquire(comm->receiver_mutex); + comm->receiver_thread = NULL; + xbt_cond_signal(comm->receiver_cond); + xbt_mutex_release(comm->receiver_mutex); - return result; + return 0; } -int communicator::receiver() +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(mutex); - xbt_cond_signal(cond); // signal master that we are ready - xbt_mutex_release(mutex); - xbt_dynar_t comms = xbt_dynar_new(sizeof(msg_comm_t), NULL); - while (ctrl_comm || data_comm) { - - if (ctrl_comm) - xbt_dynar_push(comms, &ctrl_comm); - if (data_comm) - xbt_dynar_push(comms, &data_comm); - MSG_comm_waitany(comms); - xbt_dynar_reset(comms); - - if (ctrl_comm && comm_test_n_destroy(ctrl_comm)) { - if (strcmp(MSG_task_get_name(ctrl_task), "finalize")) { - XBT_DEBUG("received message from ctrl"); - xbt_mutex_acquire(mutex); - received.push(ctrl_task); - xbt_mutex_release(mutex); - ctrl_task = NULL; - ctrl_comm = MSG_task_irecv(&ctrl_task, get_ctrl_mbox()); - } else { - XBT_DEBUG("received finalize from ctrl"); - MSG_task_destroy(ctrl_task); - ctrl_task = NULL; - ctrl_comm = 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); + } - if (data_comm && comm_test_n_destroy(data_comm)) { - if (strcmp(MSG_task_get_name(data_task), "finalize")) { - XBT_DEBUG("received message from data"); - xbt_mutex_acquire(mutex); - received.push(data_task); - xbt_mutex_release(mutex); - data_task = NULL; - data_comm = MSG_task_irecv(&data_task, get_data_mbox()); - } else { - XBT_DEBUG("received finalize from data"); - MSG_task_destroy(data_task); - data_task = NULL; - data_comm = NULL; - } + 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); + + while (!xbt_dynar_is_empty(comms)) { + + int index = MSG_comm_waitany(comms); + msg_comm_t finished_comm = xbt_dynar_get_as(comms, index, msg_comm_t); + 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); + xbt_mutex_acquire(receiver_mutex); + received.push(ch->task); + xbt_cond_signal(receiver_cond); + xbt_mutex_release(receiver_mutex); + 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_mutex_acquire(mutex); - if (!received.empty()) - xbt_cond_signal(cond); - xbt_mutex_release(mutex); + } xbt_dynar_free(&comms); - return 0; +} + +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: