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Issue #23285: PEP 475 -- Retry system calls failing with EINTR.

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This commit is contained in:
Charles-François Natali 2015-02-07 13:27:50 +00:00
parent d005090e01
commit 6e6c59b508
18 changed files with 753 additions and 522 deletions
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18
Lib/multiprocessing/forkserver.py
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@ -188,8 +188,6 @@ def main(listener_fd, alive_r, preload, main_path=None, sys_path=None):
finally:
os._exit(code)
except InterruptedError:
pass
except OSError as e:
if e.errno != errno.ECONNABORTED:
raise
@ -230,13 +228,7 @@ def read_unsigned(fd):
data = b''
length = UNSIGNED_STRUCT.size
while len(data) < length:
while True:
try:
s = os.read(fd, length - len(data))
except InterruptedError:
pass
else:
break
s = os.read(fd, length - len(data))
if not s:
raise EOFError('unexpected EOF')
data += s
@ -245,13 +237,7 @@ def read_unsigned(fd):
def write_unsigned(fd, n):
msg = UNSIGNED_STRUCT.pack(n)
while msg:
while True:
try:
nbytes = os.write(fd, msg)
except InterruptedError:
pass
else:
break
nbytes = os.write(fd, msg)
if nbytes == 0:
raise RuntimeError('should not get here')
msg = msg[nbytes:]