mirror of
https://github.com/gryf/ebook-converter.git
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68 lines
1.8 KiB
Python
68 lines
1.8 KiB
Python
import errno
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import functools
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import os
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import sys
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import threading
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from ebook_converter import force_unicode
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from ebook_converter.constants_old import filesystem_encoding
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from ebook_converter.constants_old import islinux
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from ebook_converter.utils.filenames import ascii_filename
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VADDRESS = None
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def eintr_retry_call(func, *args, **kwargs):
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while True:
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try:
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return func(*args, **kwargs)
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except EnvironmentError as e:
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if getattr(e, 'errno', None) == errno.EINTR:
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continue
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raise
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@functools.lru_cache()
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def socket_address(which):
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user = force_unicode(os.environ.get('USER') or os.path.basename(os.path.expanduser('~')), filesystem_encoding)
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sock_name = '{}-calibre-{}.socket'.format(ascii_filename(user).replace(' ', '_'), which)
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if islinux:
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ans = '\0' + sock_name
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else:
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from tempfile import gettempdir
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tmp = force_unicode(gettempdir(), filesystem_encoding)
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ans = os.path.join(tmp, sock_name)
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return ans
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def gui_socket_address():
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return socket_address('gui')
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def viewer_socket_address():
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return socket_address('viewer')
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class RC(threading.Thread):
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def __init__(self, print_error=True, socket_address=None):
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self.print_error = print_error
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self.socket_address = socket_address or gui_socket_address()
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threading.Thread.__init__(self)
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self.conn = None
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self.daemon = True
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def run(self):
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from multiprocessing.connection import Client
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self.done = False
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try:
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self.conn = Client(self.socket_address)
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self.done = True
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except Exception:
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if self.print_error:
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print('Failed to connect to address {}', file=sys.stderr).format(repr(self.socket_address))
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import traceback
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traceback.print_exc()
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