Wip++...

[loba.git] / communicator.cpp

diff --git a/communicator.cpp b/communicator.cpp
index 0d724aa171e11c3d1fe7793ece5d5210941fd670..45b52ef73eb1c76bbfecd528bcb89aab8c8a5bc9 100644 (file)
--- a/communicator.cpp
+++ b/communicator.cpp
@@ -1,72 +1,136 @@
 #include <algorithm>
+#include <tr1/functional>
 #include <cstring>
 #include <msg/msg.h>
 #include <xbt/log.h>
 #include "communicator.h"
+#include "simgrid_features.h"
+#include "misc.h"
 
 // XBT_LOG_EXTERNAL_DEFAULT_CATEGORY(simu);
 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(comm, simu,
                                 "Messages from asynchronous pipes");
 
-namespace {
-    bool comm_test_n_destroy(msg_comm_t& comm)
-    {
-        if (MSG_comm_test(comm)) {
-            MSG_comm_destroy(comm);
-            return true;
-        } else
-            return false;
-    }
-}
-
 communicator::communicator()
 {
     const char* hostname = MSG_host_get_name(MSG_host_self());
-    size_t len = std::strlen(hostname);
-    recv_mbox = new char[len + 1];
-    strcpy(recv_mbox, hostname);
-    recv_task = NULL;
-    recv_comm = MSG_task_irecv(&recv_task, recv_mbox);
+
+    ctrl_mbox = hostname;
+    ctrl_mbox += "_ctrl";
+    ctrl_task = NULL;
+    ctrl_comm = MSG_task_irecv(&ctrl_task, get_ctrl_mbox());
+    ctrl_close_is_last = false;
+
+    data_mbox = hostname;
+    data_mbox += "_data";
+    data_task = NULL;
+    data_comm = MSG_task_irecv(&data_task, get_data_mbox());
+    data_close_is_last = false;
 }
 
 communicator::~communicator()
 {
-    send_acknowledge();
+    if (ctrl_comm)
+        WARN0("ctrl_comm is pending!");
+    if (data_comm)
+        WARN0("data_comm is pending!");
     if (!sent_comm.empty())
-        WARN1("Lost %ld send communications!", (long )sent_comm.size());
-    delete[] recv_mbox;
+        WARN2("lost %ld send communication%s!",
+              (long )sent_comm.size(), ESSE(sent_comm.size()));
 }
 
-
-void communicator::send(m_task_t task, const char *dest)
+void communicator::send(const char* dest, message* msg)
 {
+    double msg_size = sizeof *msg;
+    if (msg->get_type() == message::LOAD)
+        msg_size += msg->get_amount();
+    m_task_t task = MSG_task_create("message", 0.0, msg_size, msg);    
     sent_comm.push_back(MSG_task_isend(task, dest));
-    send_acknowledge();
+    flush_sent();
 }
 
-void communicator::send(m_task_t task, const std::string& dest)
+bool communicator::recv(message*& msg, m_host_t& from, bool wait)
 {
-    send(task, dest.c_str());
+    bool restart;
+    msg = NULL;
+
+    do {
+        if (ctrl_comm && comm_test_n_destroy(ctrl_comm)) {
+            msg = (message* )MSG_task_get_data(ctrl_task);
+            from = MSG_task_get_source(ctrl_task);
+            MSG_task_destroy(ctrl_task);
+            ctrl_task = NULL;
+            ctrl_comm =
+                (!ctrl_close_is_last || msg->get_type() != message::CTRL_CLOSE)
+                ? ctrl_comm = MSG_task_irecv(&ctrl_task, get_ctrl_mbox())
+                : ctrl_comm = NULL;
+
+        } else if (data_comm && comm_test_n_destroy(data_comm)) {
+            msg = (message* )MSG_task_get_data(data_task);
+            from = MSG_task_get_source(data_task);
+            MSG_task_destroy(data_task);
+            data_task = NULL;
+            data_comm =
+                (!data_close_is_last || msg->get_type() != message::DATA_CLOSE)
+                ? data_comm = MSG_task_irecv(&data_task, get_data_mbox())
+                : data_comm = NULL;
+        }
+
+        restart = wait && !msg && (ctrl_comm || data_comm);
+        if (restart) {
+            xbt_dynar_t comms = xbt_dynar_new(sizeof(msg_comm_t), NULL);
+            if (ctrl_comm)
+                xbt_dynar_push(comms, &ctrl_comm);
+            if (data_comm)
+                xbt_dynar_push(comms, &data_comm);
+            MSG_comm_waitany(comms);
+            xbt_dynar_free(&comms);
+        }
+    } while (restart);
+
+    return msg != NULL;
 }
 
-m_task_t communicator::recv()
+void communicator::wait_for_sent()
 {
-   m_task_t task = NULL;
-   if (comm_test_n_destroy(recv_comm)) {
-        task = recv_task;
-        recv_task = NULL;
-        recv_comm = MSG_task_irecv(&recv_task, recv_mbox);
+    xbt_dynar_t comms = xbt_dynar_new(sizeof(msg_comm_t), NULL);
+    while (!sent_comm.empty()) {
+        std::for_each(sent_comm.begin(), sent_comm.end(),
+                      std::tr1::bind(xbt_dynar_push,
+                                     comms, std::tr1::placeholders::_1));
+        MSG_comm_waitany(comms);
+        xbt_dynar_reset(comms);
+        flush_sent();
     }
-    return task;
+    xbt_dynar_free(&comms);
 }
 
-int communicator::sent_count()
+void communicator::next_close_on_ctrl_is_last()
 {
-    send_acknowledge();
+    ctrl_close_is_last = true;
+}
+
+void communicator::next_close_on_data_is_last()
+{
+    data_close_is_last = true;
+}
+
+int communicator::send_backlog()
+{
+    flush_sent();
     return sent_comm.size();
 }
 
-void communicator::send_acknowledge()
+bool communicator::comm_test_n_destroy(msg_comm_t& comm)
+{
+    if (MSG_comm_test(comm)) {
+        MSG_comm_destroy(comm);
+        return true;
+    } else
+        return false;
+}
+
+void communicator::flush_sent()
 {
     std::remove_if(sent_comm.begin(), sent_comm.end(), comm_test_n_destroy);
 }