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Fix O_NONBLOCK for self pipe on macOS

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Kovid Goyal 2019-11-25 09:23:20 +05:30
parent 804868e514
commit 6144b06e47
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1 changed files with 5 additions and 1 deletions
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6
src/calibre/gui2/__init__.py
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@ -829,7 +829,11 @@ def setup_unix_signals(self):
cloexec_flag = getattr(fcntl, 'FD_CLOEXEC', 1)
for fd in (read_fd, write_fd):
flags = fcntl.fcntl(fd, fcntl.F_GETFD)
fcntl.fcntl(fd, fcntl.F_SETFD, flags | cloexec_flag | os.O_NONBLOCK)
if flags != -1:
fcntl.fcntl(fd, fcntl.F_SETFD, flags | cloexec_flag)
flags = fcntl.fcntl(fd, fcntl.F_GETFL)
if flags != -1:
fcntl.fcntl(fd, fcntl.F_SETFL, flags | os.O_NONBLOCK)
original_handlers = {}
for sig in (signal.SIGINT, signal.SIGTERM):