Added rather trivial implementation for the region list, including test

Author: Byron

smmap/mman.py

@@ -158,15 +158,37 @@ def ofs_end(self):
 	#END handle compat layer
 
 
+class MappedRegionList(list):
+	"""List of MappedRegion instances associating a path with a list of regions."""
+	__slots__ = (
+				'_path', 		# path which is mapped by all our regions
+				'_file_size'		# total size of the file we map
+				)
+	
+	def __new__(cls, path):
+		return super(MappedRegionList, cls).__new__(cls)
+	
+	def __init__(self, path):
+		self._path = path
+		self._file_size = None
+		
+	def path(self):
+		""":return: path to file whose regions we manage"""
+		return self._path
+		
+	def file_size(self):
+		""":return: size of file we manager"""
+		if self._file_size is None:
+			self._file_size = os.stat(self._path).st_size
+		#END update file size
+		return self._file_size
+	
+
 class Cursor(object):
 	"""Pointer into the mapped region of the memory manager, keeping the current window 
 	alive until it is destroyed"""
 
-
-class MappedRegionList(list):
-	"""List of MappedRegion instances with specific functionality"""
 
-
 class MappedMemoryManager(object):
 	"""Maintains a list of ranges of mapped memory regions in one or more files and allows to easily 
 	obtain additional regions assuring there is no overlap.

smmap/test/test_mman.py

@@ -88,7 +88,12 @@ def test_region(self):
 		assert w.ofs == rfull.ofs_begin() and w.ofs_end() == rfull.ofs_end()
 
 	def test_region_list(self):
-		pass
+		fc = FileCreator(100, "sample_file")
+		ml = MappedRegionList(fc.path)
+		
+		assert len(ml) == 0
+		assert ml.path() == fc.path
+		assert ml.file_size() == fc.size
 
 	def test_cursor(self):
 		pass