Recover from stale mutexes with force unlocking and retry

2016-10-12 21:26:59 +02:00
parent caa7c994a0
commit 81c5cba0e5
6 changed files with 145 additions and 28 deletions
@@ -19,11 +19,23 @@ struct SharedBarriers
    {
    }

+    static void resetCurrentRegions()
+    {
+        boost::interprocess::named_sharable_mutex::remove("current_regions");
+    }
+    static void resetRegions1()
+    {
+        boost::interprocess::named_sharable_mutex::remove("regions_1");
+    }
+    static void resetRegions2()
+    {
+        boost::interprocess::named_sharable_mutex::remove("regions_2");
+    }
+
    boost::interprocess::named_upgradable_mutex current_regions_mutex;
    boost::interprocess::named_sharable_mutex regions_1_mutex;
    boost::interprocess::named_sharable_mutex regions_2_mutex;
 };
-
 }
 }

@@ -42,7 +42,15 @@ class Storage
 {
  public:
    Storage(StorageConfig config);
-    int Run();
+
+    enum ReturnCode
+    {
+        Ok,
+        Error,
+        Retry
+    };
+
+    ReturnCode Run(int max_wait);

  private:
    StorageConfig config;