diff options
author | imarom <imarom@cisco.com> | 2015-08-30 11:41:42 +0300 |
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committer | imarom <imarom@cisco.com> | 2015-08-30 11:41:42 +0300 |
commit | c9381643e7bf9b3dc690bf3e012ad6176ee32b8c (patch) | |
tree | ff0e91ee5c38f2caaeaa53340ecf2db2a326455a /scripts/external_libs/zmq/eventloop/minitornado/platform/posix.py | |
parent | 05a529031e962d61ab977393fb3d153931feff34 (diff) | |
parent | 53f0e28d7f30c7175cbb15884c309613593859d8 (diff) |
Merge branch 'master' into rpc
Conflicts:
linux/ws_main.py
linux_dpdk/ws_main.py
Diffstat (limited to 'scripts/external_libs/zmq/eventloop/minitornado/platform/posix.py')
-rw-r--r-- | scripts/external_libs/zmq/eventloop/minitornado/platform/posix.py | 70 |
1 files changed, 70 insertions, 0 deletions
diff --git a/scripts/external_libs/zmq/eventloop/minitornado/platform/posix.py b/scripts/external_libs/zmq/eventloop/minitornado/platform/posix.py new file mode 100644 index 00000000..ccffbb66 --- /dev/null +++ b/scripts/external_libs/zmq/eventloop/minitornado/platform/posix.py @@ -0,0 +1,70 @@ +#!/usr/bin/env python +# +# Copyright 2011 Facebook +# +# Licensed under the Apache License, Version 2.0 (the "License"); you may +# not use this file except in compliance with the License. You may obtain +# a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT +# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the +# License for the specific language governing permissions and limitations +# under the License. + +"""Posix implementations of platform-specific functionality.""" + +from __future__ import absolute_import, division, print_function, with_statement + +import fcntl +import os + +from . import interface + + +def set_close_exec(fd): + flags = fcntl.fcntl(fd, fcntl.F_GETFD) + fcntl.fcntl(fd, fcntl.F_SETFD, flags | fcntl.FD_CLOEXEC) + + +def _set_nonblocking(fd): + flags = fcntl.fcntl(fd, fcntl.F_GETFL) + fcntl.fcntl(fd, fcntl.F_SETFL, flags | os.O_NONBLOCK) + + +class Waker(interface.Waker): + def __init__(self): + r, w = os.pipe() + _set_nonblocking(r) + _set_nonblocking(w) + set_close_exec(r) + set_close_exec(w) + self.reader = os.fdopen(r, "rb", 0) + self.writer = os.fdopen(w, "wb", 0) + + def fileno(self): + return self.reader.fileno() + + def write_fileno(self): + return self.writer.fileno() + + def wake(self): + try: + self.writer.write(b"x") + except IOError: + pass + + def consume(self): + try: + while True: + result = self.reader.read() + if not result: + break + except IOError: + pass + + def close(self): + self.reader.close() + self.writer.close() |