Changeset 506 for trunk/sources/HeuristicLab.Grid

Timestamp:

08/12/08 18:58:15 (16 years ago)

Author:

gkronber

Message:

added locking for thread-safe update of the counter variables (#197 Use SQLite backend to store waiting engines and results instead of in-memory dictionaries)

File:

• trunk/sources/HeuristicLab.Grid/EngineStore.cs (modified) (3 diffs)

trunk/sources/HeuristicLab.Grid/EngineStore.cs

@@ -54 +54 @@
       }
     }
-
+    private object locker = new object();
     public EngineStore() {
       DbProviderFactory fact;
@@ -79 +79 @@
         guid = nextWaitingJob.Guid;
         engine = nextWaitingJob.RawData;
-        runningJobs++;
-        waitingJobs--;
+        lock(locker) {
+          runningJobs++;
+          waitingJobs--;
+        }
         return true;
       }
@@ -89 +91 @@
       // add the new result
       database.SetJobResult(guid, result);
-      results++;
+      lock(locker) {
+        results++;
+        runningJobs--;
+      }
     }
 
     internal void AddEngine(Guid guid, byte[] engine) {
       database.InsertJob(guid, JobState.Waiting, engine);
-      waitingJobs++;
+      lock(locker) {
+        waitingJobs++;
+      }
     }