Ticket #1476: pipefs.diff

pipefs.cpp

@@ -832 +832 @@
         }
     }
 
-    if ((openMode & O_ACCMODE) == O_RDONLY || (openMode & O_ACCMODE) == O_RDWR)
-        atomic_add(&fReaderCount, -1);
+    if ((openMode & O_ACCMODE) == O_RDONLY || (openMode & O_ACCMODE) == O_RDWR) {
+        if (atomic_add(&fReaderCount, -1) == 1) {
+            delete_sem(fWriteLock);
+            fWriteLock = -1;        
+        }
+    }
 }