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Mark the fd used for singleinstance of OS X as CLOEXEC

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Kovid Goyal 2015-02-04 10:04:28 +05:30
parent da0c6f8048
commit acfff78330
1 changed files with 2 additions and 0 deletions
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2
src/calibre/utils/lock.py
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@ -242,6 +242,8 @@ else:
from calibre.utils.ipc import eintr_retry_call from calibre.utils.ipc import eintr_retry_call
path = singleinstance_path(name) path = singleinstance_path(name)
f = open(path, 'w') f = open(path, 'w')
old_flags = fcntl.fcntl(f.fileno(), fcntl.F_GETFD)
fcntl.fcntl(f.fileno(), fcntl.F_SETFD, old_flags | fcntl.FD_CLOEXEC)
try: try:
eintr_retry_call(fcntl.lockf, f.fileno(), fcntl.LOCK_EX|fcntl.LOCK_NB) eintr_retry_call(fcntl.lockf, f.fileno(), fcntl.LOCK_EX|fcntl.LOCK_NB)
atexit.register(_clean_lock_file, f) atexit.register(_clean_lock_file, f)