Protect concurrent access to real_load.

[loba.git] / process.cpp

diff --git a/process.cpp b/process.cpp
index cbf512b6b66d2fde431d060030cf072868b942e2..3df086b9c611ce6654df3521fabc1f2e2f94c871 100644 (file)
--- a/process.cpp
+++ b/process.cpp
@@ -21,7 +21,7 @@ double process::total_load_exit = 0.0;
 
 namespace {
 
-    void sleep_until_date(double& date, double duration = 0.0)
+    void sleep_until_date(double& date, double duration)
     {
         double sleep_duration = date - MSG_get_clock();
         if (sleep_duration > 0.0)
@@ -126,6 +126,7 @@ void process::load_balance_loop()
             ++lb_iter;
         }
 
+        mutex.acquire();
         if (!opt::bookkeeping)
             expected_load = real_load - get_sum_of_to_send();
         // nothing to do with opt::bookkeeping
@@ -134,6 +135,7 @@ void process::load_balance_loop()
             XBT_INFO("(%u:%u) current load: %g", lb_iter, comp_iter, real_load);
             XBT_VERB("... expected load: %g", expected_load);
         }
+        mutex.release();
 
         if (expected_load > 0.0)
             load_balance();
@@ -172,19 +174,23 @@ void process::compute_loop()
     double next_iter_after_date = MSG_get_clock() + opt::min_comp_iter_duration;
     while (still_running()) {
         // receive
+        mutex.acquire();
         if (real_load > 0.0)
             data_receive(0.0);
         else
             data_receive(opt::min_comp_iter_duration);
+        mutex.release();
 
         comm.data_flush(false);
 
-        if (real_load == 0.0)
-            continue;
-
         // send
+        mutex.acquire();
         std::for_each(neigh.begin(), neigh.end(),
                       bind(&process::data_send, this, _1));
+        mutex.release();
+
+        if (real_load == 0.0)
+            continue;
 
         // compute
         ++comp_iter;