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