X-Git-Url: https://bilbo.iut-bm.univ-fcomte.fr/and/gitweb/loba.git/blobdiff_plain/751ae9fcfc70b0b48670338c2273e2eaebc388d2..2c8da5a553c6f0c6cd07dcbfbb8f09d4f5a2f389:/communicator.cpp diff --git a/communicator.cpp b/communicator.cpp index 649ff80..89cece6 100644 --- a/communicator.cpp +++ b/communicator.cpp @@ -25,19 +25,20 @@ 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() @@ -52,12 +53,12 @@ communicator::~communicator() task = MSG_task_create("finalize", 0.0, 0, NULL); MSG_task_send(task, 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!"); @@ -70,8 +71,8 @@ communicator::~communicator() 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 +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; 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()) @@ -156,22 +158,41 @@ int communicator::receiver_wrapper(int, char* []) int result = 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; } +void communicator::receiver1(msg_comm_t& comm, m_task_t& task, const char* mbox) +{ + 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; + } +} + int 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_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) { @@ -180,44 +201,16 @@ 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")) { - 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; - } - } - - 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_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;