Replace NULL with nullptr.

[loba.git] / messages.cpp

diff --git a/messages.cpp b/messages.cpp
index 2d5de949b0ddd72a05d2661ae81b0234018bdde7..e20c4cac306c95c8fb0557ccf8937579b924f25a 100644 (file)
--- a/messages.cpp
+++ b/messages.cpp
@@ -14,10 +14,10 @@ message::message(message_type t, double a, double c)
     // compute message size
     // arbitrary: 8 for type, and 8 for each double
     switch (type) {
-    case CTRL:
+    case message_type::CTRL:
         size = opt::bookkeeping ? 24 : 16; // type + amount + (credit)?
         break;
-    case DATA:
+    case message_type::DATA:
         size = 16 + opt::comm_cost(amount); // type + amount + data size
         break;
     default:
@@ -30,28 +30,28 @@ std::string message::to_string()
 {
     std::ostringstream oss;
     switch (type) {
-    case CTRL:
+    case message_type::CTRL:
         oss << "CTRL: " << amount << " (info)";
         if (opt::bookkeeping)
             oss << "; " << credit << " (credit)";
         break;
-    case DATA:
+    case message_type::DATA:
         oss << "DATA: " << amount << " (load)";
         break;
-    case CTRL_CLOSE:
+    case message_type::CTRL_CLOSE:
         oss << "CTRL_CLOSE";
         break;
-    case DATA_CLOSE:
+    case message_type::DATA_CLOSE:
         oss << "DATA_CLOSE";
         break;
     default:
-        oss << "UNKNOWN MESSAGE TYPE: " << type;
+        oss << "UNKNOWN MESSAGE TYPE: " << static_cast<int>(type);
         break;
     }
     return oss.str();
 }
 
-void message_queue::push(m_task_t task)
+void message_queue::push(msg_task_t task)
 {
     if (queue.push(task)) {
          // list was empty, the push must be signaled
@@ -61,38 +61,31 @@ void message_queue::push(m_task_t task)
     }
 }
 
-bool message_queue::pop(message*& msg, m_host_t& from, double timeout)
+bool message_queue::pop(message*& msg, msg_host_t& from, double timeout)
 {
-    m_task_t task;
+    msg_task_t task = nullptr;
     if (!queue.try_pop(task)) {
         if (timeout == 0.0)
             return false;
 
         mutex.acquire();
         if (!queue.try_pop(task)) {
-            xbt_ex_t e;
             XBT_DEBUG("waiting for a message to come");
-            TRY {
-                if (timeout > 0)
-                    cond.timedwait(mutex, timeout);
-                else
-                    cond.wait(mutex);
-            }
-            TRY_CLEANUP {
-                mutex.release();
-            }
-            CATCH (e) {
-                if (e.category != timeout_error)
-                    RETHROW;
-                xbt_ex_free(e);
-                return false;   // got a timeout
+            bool hit_timeout;
+            if (timeout > 0) {
+                hit_timeout = !cond.timedwait(mutex, timeout);
+            } else {
+                cond.wait(mutex);
+                hit_timeout = false;
             }
             bool pop_was_successful = queue.try_pop(task);
-            xbt_assert(pop_was_successful);
-        } else {
-            mutex.release();
+            xbt_assert(hit_timeout || pop_was_successful);
         }
+        mutex.release();
     }
+    if (task == nullptr)
+        return false;
+
     msg = static_cast<message*>(MSG_task_get_data(task));
     from = MSG_task_get_source(task);
     MSG_task_destroy(task);