X-Git-Url: https://bilbo.iut-bm.univ-fcomte.fr/and/gitweb/loba.git/blobdiff_plain/cd6b2539af2f8564684f287983ffb05bb0f7b285..4ed2ded99f037e413c9008a324c85f8f95611bb5:/communicator.cpp diff --git a/communicator.cpp b/communicator.cpp index e30d731..1bf16cd 100644 --- a/communicator.cpp +++ b/communicator.cpp @@ -25,58 +25,59 @@ 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() { m_task_t task; - DEBUG0("send finalize to receiver/ctrl"); + XBT_DEBUG("send finalize to receiver/ctrl"); task = MSG_task_create("finalize", 0.0, 0, NULL); MSG_task_send(task, get_ctrl_mbox()); - DEBUG0("send finalize to receiver/data"); + XBT_DEBUG("send finalize to receiver/data"); task = MSG_task_create("finalize", 0.0, 0, NULL); MSG_task_send(task, get_data_mbox()); - xbt_mutex_acquire(mutex); - while (receiver_process) { - DEBUG0("waiting for receiver to terminate"); - xbt_cond_wait(cond, mutex); + xbt_mutex_acquire(receiver_mutex); + while (receiver_thread) { + XBT_DEBUG("waiting for receiver to terminate"); + xbt_cond_wait(receiver_cond, receiver_mutex); } - xbt_mutex_release(mutex); + xbt_mutex_release(receiver_mutex); if (ctrl_comm) - WARN0("ctrl_comm is pending!"); + XBT_WARN("ctrl_comm is pending!"); if (data_comm) - WARN0("data_comm is pending!"); + XBT_WARN("data_comm is pending!"); if (!received.empty()) - WARN2("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()) - WARN2("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) { - DEBUG2("send %s to %s", msg->to_string().c_str(), dest); + XBT_DEBUG("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()); @@ -93,15 +94,16 @@ 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; - DEBUG0("waiting for a message to come"); + 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 +111,7 @@ 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()) @@ -121,7 +123,7 @@ bool communicator::recv(message*& msg, m_host_t& from, double timeout) from = MSG_task_get_source(task); MSG_task_destroy(task); - DEBUG2("received %s from %s", + XBT_DEBUG("received %s from %s", msg->to_string().c_str(), MSG_host_get_name(from)); return true; @@ -135,43 +137,54 @@ 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(); - DEBUG0("terminate"); - xbt_mutex_acquire(comm->mutex); - comm->receiver_process = NULL; - xbt_cond_signal(comm->cond); - xbt_mutex_release(comm->mutex); + XBT_DEBUG("terminate"); + 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::receiver1(msg_comm_t& comm, m_task_t& task, const char* mbox) +{ + comm_check_n_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; + } +} + +void communicator::receiver() { ctrl_comm = MSG_task_irecv(&ctrl_task, get_ctrl_mbox()); data_comm = MSG_task_irecv(&data_task, get_data_mbox()); - DEBUG0("receiver ready"); - xbt_mutex_acquire(mutex); - xbt_cond_signal(cond); // signal master that we are ready - xbt_mutex_release(mutex); + 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); xbt_dynar_t comms = xbt_dynar_new(sizeof(msg_comm_t), NULL); while (ctrl_comm || data_comm) { @@ -180,47 +193,33 @@ int communicator::receiver() xbt_dynar_push(comms, &ctrl_comm); if (data_comm) xbt_dynar_push(comms, &data_comm); - MSG_comm_waitany(comms); + 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 (ctrl_comm && comm_test_n_destroy(ctrl_comm)) { - if (strcmp(MSG_task_get_name(ctrl_task), "finalize")) { - DEBUG0("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 { - DEBUG0("received finalize from ctrl"); - MSG_task_destroy(ctrl_task); - ctrl_task = NULL; - ctrl_comm = NULL; - } - } - - if (data_comm && comm_test_n_destroy(data_comm)) { - if (strcmp(MSG_task_get_name(data_task), "finalize")) { - DEBUG0("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 { - DEBUG0("received finalize from data"); - MSG_task_destroy(data_task); - data_task = NULL; - data_comm = NULL; - } - } - xbt_mutex_acquire(mutex); - if (!received.empty()) - xbt_cond_signal(cond); - xbt_mutex_release(mutex); + 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); } 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: