fix: read/write mutex improvement

ccnode/utils.py

@@ -99,6 +99,7 @@ class RWLock(object):
         self.read = self._RLock(self)
         self.write = self._WLock(self)
     
+    
     class _Lock(object):
         '''
         '''
@@ -107,27 +108,49 @@ class RWLock(object):
             '''
             self._parent = rwlock
     
+    
     class _WLock(_Lock):
         '''
         '''
         def __enter__(self):
+            '''
+            '''
+            self.acquire()
+        
+        def __exit__(self, exc_type, exc_value, traceback):
+            '''
+            '''
+            self.release()
+        
+        def acquire(self):
             '''
             '''
             with self._parent._mutex:
                 self._parent._writers += 1
             self._parent._writemutex.acquire()
         
-        def __exit__(self, exc_type, exc_value, traceback):
+        def release(self):
             '''
             '''
             with self._parent._mutex:
                 self._parent._writers -= 1
             self._parent._writemutex.release()
     
+    
     class _RLock(_Lock):
         '''
         '''
         def __enter__(self):
+            '''
+            '''
+            self.acquire()
+        
+        def __exit__(self, exc_type, exc_value, traceback):
+            '''
+            '''
+            self.release()
+        
+        def acquire(self):
             '''
             '''
             self._parent._mutex.acquire()
@@ -138,7 +161,7 @@ class RWLock(object):
             self._parent._readers += 1
             self._parent._mutex.release()
         
-        def __exit__(self, exc_type, exc_value, traceback):
+        def release(self):
             '''
             '''
             self._parent._mutex.acquire()