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| author | Brett Cannon <bcannon@gmail.com> | 2005-01-08 02:43:53 +0000 |
|---|---|---|
| committer | Brett Cannon <bcannon@gmail.com> | 2005-01-08 02:43:53 +0000 |
| commit | e6539c4401cd3f60a5cc176717852886cb9d152a (patch) | |
| tree | 6bc7274b8d6297d3bfe8cd78ca12977a737133a3 | |
| parent | 922b3e2098d9903d915aa7ce19d8e3c8973643d0 (diff) | |
| download | cpython-git-e6539c4401cd3f60a5cc176717852886cb9d152a.tar.gz | |
In _DummyThread objects the lock stored in __block (allocated thanks to
_Thread.__init__) was never used. This is a waste since locks use OS
primitives that are in limited supply. So the lock is deleted in
_DummyThread.__init__ .
Closes bug #1089632.
| -rw-r--r-- | Lib/threading.py | 1 | ||||
| -rw-r--r-- | Misc/NEWS | 5 |
2 files changed, 6 insertions, 0 deletions
diff --git a/Lib/threading.py b/Lib/threading.py index 860c2fdd33..61c25b6534 100644 --- a/Lib/threading.py +++ b/Lib/threading.py @@ -653,6 +653,7 @@ class _DummyThread(Thread): def __init__(self): Thread.__init__(self, name=_newname("Dummy-%d")) + del self._Thread__block self._Thread__started = True _active_limbo_lock.acquire() _active[_get_ident()] = self @@ -33,6 +33,11 @@ Extension Modules Library ------- +- _DummyThread objects in the threading module now delete self.__block that is + inherited from _Thread since it uses up a lock allocated by 'thread'. The + lock primitives tend to be limited in number and thus should not be wasted on + a _DummyThread object. Fixes bug #1089632. + - The imghdr module now detects Exif files. - StringIO.truncate() now correctly adjusts the size attribute. |