[Python-checkins] r88639 - in python/branches/py3k: Lib/ctypes/test/test_loading.py Lib/ctypes/util.py Misc/ACKS Misc/NEWS
antoine.pitrou
python-checkins at python.org
Sat Feb 26 09:45:20 CET 2011
Author: antoine.pitrou
Date: Sat Feb 26 09:45:20 2011
New Revision: 88639
Log:
Issue #11258: Speed up ctypes.util.find_library() under Linux a lot. Patch
by Jonas H.
Modified:
python/branches/py3k/Lib/ctypes/test/test_loading.py
python/branches/py3k/Lib/ctypes/util.py
python/branches/py3k/Misc/ACKS
python/branches/py3k/Misc/NEWS
Modified: python/branches/py3k/Lib/ctypes/test/test_loading.py
==============================================================================
--- python/branches/py3k/Lib/ctypes/test/test_loading.py (original)
+++ python/branches/py3k/Lib/ctypes/test/test_loading.py Sat Feb 26 09:45:20 2011
@@ -102,5 +102,12 @@
# This is the real test: call the function via 'call_function'
self.assertEqual(0, call_function(proc, (None,)))
+ if os.name != "nt":
+ def test_libc_exists(self):
+ # A basic test that the libc is found by find_library()
+ # XXX Can this fail on some non-Windows systems?
+ self.assertTrue(libc_name)
+ self.assertTrue(os.path.exists(libc_name))
+
if __name__ == "__main__":
unittest.main()
Modified: python/branches/py3k/Lib/ctypes/util.py
==============================================================================
--- python/branches/py3k/Lib/ctypes/util.py (original)
+++ python/branches/py3k/Lib/ctypes/util.py Sat Feb 26 09:45:20 2011
@@ -203,14 +203,18 @@
abi_type = mach_map.get(machine, 'libc6')
# XXX assuming GLIBC's ldconfig (with option -p)
- expr = r'(\S+)\s+\((%s(?:, OS ABI:[^\)]*)?)\)[^/]*(/[^\(\)\s]*lib%s\.[^\(\)\s]*)' \
- % (abi_type, re.escape(name))
+ name = 'lib%s' % name
+ pat = re.compile('\s*(/[^\(\)\s]*%s\.[^\(\)\s]*)' % re.escape(name))
with contextlib.closing(os.popen('LC_ALL=C LANG=C /sbin/ldconfig -p 2>/dev/null')) as f:
- data = f.read()
- res = re.search(expr, data)
- if not res:
- return None
- return res.group(1)
+ for line in f:
+ if not '=>' in line:
+ continue
+ path = line.rsplit('=>', 1)[1]
+ if not name+'.' in path:
+ continue
+ res = pat.search(path)
+ if res:
+ return res.group(1)
def find_library(name):
return _findSoname_ldconfig(name) or _get_soname(_findLib_gcc(name))
Modified: python/branches/py3k/Misc/ACKS
==============================================================================
--- python/branches/py3k/Misc/ACKS (original)
+++ python/branches/py3k/Misc/ACKS Sat Feb 26 09:45:20 2011
@@ -329,6 +329,7 @@
Michael Guravage
Lars Gustäbel
Thomas Güttler
+Jonas H.
Barry Haddow
Paul ten Hagen
Rasmus Hahn
Modified: python/branches/py3k/Misc/NEWS
==============================================================================
--- python/branches/py3k/Misc/NEWS (original)
+++ python/branches/py3k/Misc/NEWS Sat Feb 26 09:45:20 2011
@@ -35,6 +35,9 @@
Library
-------
+- Issue #11258: Speed up ctypes.util.find_library() under Linux a lot. Patch
+ by Jonas H.
+
- Issue #11297: Add collections.ChainMap().
- Issue #10755: Add the posix.fdlistdir() function. Patch by Ross Lagerwall.
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