Linux: Name all threads started by calibre at the OS level for nicer debugging

This commit is contained in:
Kovid Goyal 2014-11-06 16:28:05 +05:30
parent 451c9edfdc
commit 1abbe27bd8

View File

@ -193,6 +193,36 @@ if not _run_once:
__builtin__.__dict__['icu_upper'] = icu_upper
__builtin__.__dict__['icu_title'] = title_case
if islinux:
# Name all threads at the OS level created using the threading module, see
# http://bugs.python.org/issue15500
import ctypes, ctypes.util, threading
libpthread_path = ctypes.util.find_library("pthread")
if libpthread_path:
libpthread = ctypes.CDLL(libpthread_path)
if hasattr(libpthread, "pthread_setname_np"):
pthread_setname_np = libpthread.pthread_setname_np
pthread_setname_np.argtypes = [ctypes.c_void_p, ctypes.c_char_p]
pthread_setname_np.restype = ctypes.c_int
orig_start = threading.Thread.start
def new_start(self):
orig_start(self)
try:
name = self.name
if not name or name.startswith('Thread-'):
name = self.__class__.__name__
if name == 'Thread':
name = self.name
if name:
if isinstance(name, unicode):
name = name.encode('ascii', 'replace')
ident = getattr(self, "ident", None)
if ident is not None:
pthread_setname_np(ident, name[:15])
except Exception:
pass # Don't care about failure to set name
threading.Thread.start = new_start
def test_lopen():
from calibre.ptempfile import TemporaryDirectory
from calibre import CurrentDir