1 files changed, 51 insertions, 0 deletions
diff --git a/tcosmonitor/counter.py b/tcosmonitor/counter.py
new file mode 100644
index 0000000..ca5b7ad
--- /dev/null
+++ b/tcosmonitor/counter.py
@@ -0,0 +1,51 @@
+# -*- coding: UTF-8 -*-
+# -*- Mode: Python; tab-width: 4 -*-
+#
+# Source taken from python-M2Crypto demos
+#
+# It is tempting to add an __int__ method to this class, but it's not
+# a good idea.  This class tries to gracefully handle integer
+# overflow, and to hide this detail from both the programmer and the
+# user.  Note that the __str__ method can be relied on for printing out
+# the value of a counter:
+#
+# >>> print 'Total Client: %s' % self.total_clients
+#
+# If you need to do arithmetic with the value, then use the 'as_long'
+# method, the use of long arithmetic is a reminder that the counter
+# will overflow.
+
+class counter:
+	"general-purpose counter"
+
+	def __init__ (self, initial_value=0):
+		self.value = initial_value
+	
+	def increment (self, delta=1):
+		result = self.value
+		try:
+			self.value = self.value + delta
+		except OverflowError:
+			self.value = long(self.value) + delta
+		return result
+
+	def decrement (self, delta=1):
+		result = self.value
+		try:
+			self.value = self.value - delta
+		except OverflowError:
+			self.value = long(self.value) - delta
+		return result
+
+	def as_long (self):
+		return long(self.value)
+
+	def __nonzero__ (self):
+		return self.value != 0
+
+	def __repr__ (self):
+		return '<counter value=%s at %x>' % (self.value, id(self))
+
+	def __str__ (self):
+		return str(long(self.value))
+		#return str(long(self.value))[:-1]