1 files changed, 0 insertions, 136 deletions
diff --git a/ryu/contrib/ovs/fatal_signal.py b/ryu/contrib/ovs/fatal_signal.py
deleted file mode 100644
index e6fe7838..00000000
--- a/ryu/contrib/ovs/fatal_signal.py
+++ /dev/null
@@ -1,136 +0,0 @@
-# Copyright (c) 2010, 2011 Nicira, Inc.
-#
-# 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.
-
-import atexit
-import os
-import signal
-
-import ovs.vlog
-
-_hooks = []
-vlog = ovs.vlog.Vlog("fatal-signal")
-
-
-def add_hook(hook, cancel, run_at_exit):
-    _init()
-    _hooks.append((hook, cancel, run_at_exit))
-
-
-def fork():
-    """Clears all of the fatal signal hooks without executing them.  If any of
-    the hooks passed a 'cancel' function to add_hook(), then those functions
-    will be called, allowing them to free resources, etc.
-
-    Following a fork, one of the resulting processes can call this function to
-    allow it to terminate without calling the hooks registered before calling
-    this function.  New hooks registered after calling this function will take
-    effect normally."""
-    global _hooks
-    for hook, cancel, run_at_exit in _hooks:
-        if cancel:
-            cancel()
-
-    _hooks = []
-
-_added_hook = False
-_files = {}
-
-
-def add_file_to_unlink(file):
-    """Registers 'file' to be unlinked when the program terminates via
-    sys.exit() or a fatal signal."""
-    global _added_hook
-    if not _added_hook:
-        _added_hook = True
-        add_hook(_unlink_files, _cancel_files, True)
-    _files[file] = None
-
-
-def remove_file_to_unlink(file):
-    """Unregisters 'file' from being unlinked when the program terminates via
-    sys.exit() or a fatal signal."""
-    if file in _files:
-        del _files[file]
-
-
-def unlink_file_now(file):
-    """Like fatal_signal_remove_file_to_unlink(), but also unlinks 'file'.
-    Returns 0 if successful, otherwise a positive errno value."""
-    error = _unlink(file)
-    if error:
-        vlog.warn("could not unlink \"%s\" (%s)" % (file, os.strerror(error)))
-    remove_file_to_unlink(file)
-    return error
-
-
-def _unlink_files():
-    for file_ in _files:
-        _unlink(file_)
-
-
-def _cancel_files():
-    global _added_hook
-    global _files
-    _added_hook = False
-    _files = {}
-
-
-def _unlink(file_):
-    try:
-        os.unlink(file_)
-        return 0
-    except OSError, e:
-        return e.errno
-
-
-def _signal_handler(signr, _):
-    _call_hooks(signr)
-
-    # Re-raise the signal with the default handling so that the program
-    # termination status reflects that we were killed by this signal.
-    signal.signal(signr, signal.SIG_DFL)
-    os.kill(os.getpid(), signr)
-
-
-def _atexit_handler():
-    _call_hooks(0)
-
-
-recurse = False
-
-
-def _call_hooks(signr):
-    global recurse
-    if recurse:
-        return
-    recurse = True
-
-    for hook, cancel, run_at_exit in _hooks:
-        if signr != 0 or run_at_exit:
-            hook()
-
-
-_inited = False
-
-
-def _init():
-    global _inited
-    if not _inited:
-        _inited = True
-
-        for signr in (signal.SIGTERM, signal.SIGINT,
-                      signal.SIGHUP, signal.SIGALRM):
-            if signal.getsignal(signr) == signal.SIG_DFL:
-                signal.signal(signr, _signal_handler)
-        atexit.register(_atexit_handler)