Add statistics about message exchanges.

[loba.git] / communicator.cpp

diff --git a/communicator.cpp b/communicator.cpp
index ce0e79f15ccaa75a8f1ecfe5932e3ac69adfd241..7abdf763a175aded0947ef48f88cdccb9dfe8b95 100644 (file)
--- a/communicator.cpp
+++ b/communicator.cpp
@@ -6,12 +6,21 @@
 XBT_LOG_EXTERNAL_DEFAULT_CATEGORY(comm);
 
 #include "misc.h"
-#include "options.h"
 #include "simgrid_features.h"
 #include "tracing.h"
 
 #include "communicator.h"
 
+namespace {
+
+    void check_for_lost_messages(size_t size, const char* descr)
+    {
+        if (size)
+            XBT_WARN("lost %zu %s message%s!", size, descr, ESSE(size));
+    }
+
+}
+
 communicator::communicator()
     : host(static_cast<hostdata*>(MSG_host_get_data(MSG_host_self())))
 {
@@ -36,55 +45,40 @@ communicator::~communicator()
     receiver_thread->wait();
     delete receiver_thread;
 
-    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()));
+    check_for_lost_messages(ctrl_received.size(), "received ctrl");
+    check_for_lost_messages(data_received.size(), "received data");
+    check_for_lost_messages(ctrl_sent.size(), "sent ctrl");
+    check_for_lost_messages(data_sent.size(), "sent data");
 }
 
-void communicator::send(const char* dest, message* msg)
+msg_comm_t communicator::real_send(const char* dest, message* msg)
 {
     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());
-    m_task_t task = MSG_task_create("message", 0.0, msg_size, msg);    
+    m_task_t task = MSG_task_create("message", 0.0, msg->get_size(), msg);
     TRACE_msg_set_task_category(task,
                                 msg->get_type() == message::LOAD ?
                                 TRACE_CAT_DATA : TRACE_CAT_CTRL);
-    msg_comm_t comm = MSG_task_isend(task, dest);
-    sent_comm.push_back(comm);
+    return MSG_task_isend(task, dest);
 }
 
-void communicator::flush(bool wait)
+void communicator::real_flush(sent_comm_type& sent_comm, bool wait)
 {
     sent_comm_type::iterator bound;
     bound = std::remove_if(sent_comm.begin(), sent_comm.end(),
                            comm_test_n_destroy);
     sent_comm.erase(bound, sent_comm.end());
     if (wait && !sent_comm.empty()) {
-        msg_comm_t comms[sent_comm.size()];
+        size_t size = sent_comm.size();
+        msg_comm_t* comms = new msg_comm_t[size];
         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(),
-                          comm_check_n_destroy);
         sent_comm.clear();
+        MSG_comm_waitall(comms, size, -1.0);
+        if (!MSG_WAIT_DESTROYS_COMMS)
+            std::for_each(comms, comms + size, comm_check_n_destroy);
+        delete[] comms;
     }
 }
 
-bool communicator::recv(message*& msg, m_host_t& from, double timeout)
-{
-    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;
-}
-
 void communicator::receiver()
 {
     xbt_dynar_t comms = xbt_dynar_new(sizeof(msg_comm_t), NULL);
@@ -92,9 +86,10 @@ void communicator::receiver()
         msg_comm_t comm;
         m_task_t task;
         const char* mbox;
+        message_queue& received;
     };
-    channel chan[] = { { NULL, NULL, host->get_ctrl_mbox() },
-                       { NULL, NULL, host->get_data_mbox() } };
+    channel chan[] = { { NULL, NULL, host->get_ctrl_mbox(), ctrl_received },
+                       { NULL, NULL, host->get_data_mbox(), data_received } };
     const int chan_size = (sizeof chan) / (sizeof chan[0]);
 
     for (int i = 0 ; i < chan_size ; ++i) {
@@ -114,7 +109,7 @@ void communicator::receiver()
         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->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);