summaryrefslogtreecommitdiff
path: root/paste/deploy/util/threadinglocal.py
blob: 57afa17f00a8c5adf0251bfa2dc934c193eb781d (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
# (c) 2005 Ian Bicking and contributors; written for Paste (http://pythonpaste.org)
# Licensed under the MIT license: http://www.opensource.org/licenses/mit-license.php

try:
    import threading
except ImportError:
    # No threads, so "thread local" means process-global
    class local(object):
        pass
else:
    try:
        local = threading.local
    except AttributeError:
        # Added in 2.4, but now we'll have to define it ourselves
        import thread
        class local(object):

            def __init__(self):
                self.__dict__['__objs'] = {}

            def __getattr__(self, attr, g=thread.get_ident):
                try:
                    return self.__dict__['__objs'][g()][attr]
                except KeyError:
                    raise AttributeError(
                        "No variable %s defined for the thread %s"
                        % (attr, g()))

            def __setattr__(self, attr, value, g=thread.get_ident):
                self.__dict__['__objs'].setdefault(g(), {})[attr] = value

            def __delattr__(self, attr, g=thread.get_ident):
                try:
                    del self.__dict__['__objs'][g()][attr]
                except KeyError:
                    raise AttributeError(
                        "No variable %s defined for thread %s"
                        % (attr, g()))