/usr/share/pyshared/eventlet/green/os.py is in python-eventlet 0.9.16-3.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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import errno
socket = __import__("socket")
from eventlet import greenio
from eventlet.support import get_errno
from eventlet import greenthread
from eventlet import hubs
from eventlet.patcher import slurp_properties
__all__ = os_orig.__all__
__patched__ = ['fdopen', 'read', 'write', 'wait', 'waitpid']
slurp_properties(os_orig, globals(),
ignore=__patched__, srckeys=dir(os_orig))
def fdopen(fd, *args, **kw):
"""fdopen(fd [, mode='r' [, bufsize]]) -> file_object
Return an open file object connected to a file descriptor."""
if not isinstance(fd, int):
raise TypeError('fd should be int, not %r' % fd)
try:
return greenio.GreenPipe(fd, *args, **kw)
except IOError, e:
raise OSError(*e.args)
__original_read__ = os_orig.read
def read(fd, n):
"""read(fd, buffersize) -> string
Read a file descriptor."""
while True:
try:
return __original_read__(fd, n)
except (OSError, IOError), e:
if get_errno(e) != errno.EAGAIN:
raise
except socket.error, e:
if get_errno(e) == errno.EPIPE:
return ''
raise
hubs.trampoline(fd, read=True)
__original_write__ = os_orig.write
def write(fd, st):
"""write(fd, string) -> byteswritten
Write a string to a file descriptor.
"""
while True:
try:
return __original_write__(fd, st)
except (OSError, IOError), e:
if get_errno(e) != errno.EAGAIN:
raise
except socket.error, e:
if get_errno(e) != errno.EPIPE:
raise
hubs.trampoline(fd, write=True)
def wait():
"""wait() -> (pid, status)
Wait for completion of a child process."""
return waitpid(0,0)
__original_waitpid__ = os_orig.waitpid
def waitpid(pid, options):
"""waitpid(...)
waitpid(pid, options) -> (pid, status)
Wait for completion of a given child process."""
if options & os_orig.WNOHANG != 0:
return __original_waitpid__(pid, options)
else:
new_options = options | os_orig.WNOHANG
while True:
rpid, status = __original_waitpid__(pid, new_options)
if status >= 0:
return rpid, status
greenthread.sleep(0.01)
# TODO: open
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