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von raredesign | Dez 3, 2019 | Allgemein | 0 Kommentare

Cokiee Shell

Current Path : /usr/local/lib/python2.7/dist-packages/supervisor-3.2.3-py2.7.egg/supervisor/medusa/

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Current File : //usr/local/lib/python2.7/dist-packages/supervisor-3.2.3-py2.7.egg/supervisor/medusa/counter.py

# -*- Mode: Python -*-

# 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):
        s = str(long(self.value))
        if s[-1:] == 'L':
            s = s[:-1]
        return s

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