Add python-eventlet package to MOS 8.0 repository

[packages/trusty/python-eventlet.git] / eventlet / eventlet / hubs / poll.py

diff --git a/eventlet/eventlet/hubs/poll.py b/eventlet/eventlet/hubs/poll.py
deleted file mode 100644 (file)
index 536044c..0000000
--- a/eventlet/eventlet/hubs/poll.py
+++ /dev/null
@@ -1,123 +0,0 @@
-import errno
-import sys
-
-from eventlet import patcher
-select = patcher.original('select')
-time = patcher.original('time')
-sleep = time.sleep
-
-from eventlet.hubs.hub import BaseHub, READ, WRITE, noop
-from eventlet.support import get_errno, clear_sys_exc_info
-
-EXC_MASK = select.POLLERR | select.POLLHUP
-READ_MASK = select.POLLIN | select.POLLPRI
-WRITE_MASK = select.POLLOUT
-
-
-class Hub(BaseHub):
-    def __init__(self, clock=time.time):
-        super(Hub, self).__init__(clock)
-        self.poll = select.poll()
-        # poll.modify is new to 2.6
-        try:
-            self.modify = self.poll.modify
-        except AttributeError:
-            self.modify = self.poll.register
-
-    def add(self, evtype, fileno, cb, tb, mac):
-        listener = super(Hub, self).add(evtype, fileno, cb, tb, mac)
-        self.register(fileno, new=True)
-        return listener
-
-    def remove(self, listener):
-        super(Hub, self).remove(listener)
-        self.register(listener.fileno)
-
-    def register(self, fileno, new=False):
-        mask = 0
-        if self.listeners[READ].get(fileno):
-            mask |= READ_MASK | EXC_MASK
-        if self.listeners[WRITE].get(fileno):
-            mask |= WRITE_MASK | EXC_MASK
-        try:
-            if mask:
-                if new:
-                    self.poll.register(fileno, mask)
-                else:
-                    try:
-                        self.modify(fileno, mask)
-                    except (IOError, OSError):
-                        self.poll.register(fileno, mask)
-            else:
-                try:
-                    self.poll.unregister(fileno)
-                except (KeyError, IOError, OSError):
-                    # raised if we try to remove a fileno that was
-                    # already removed/invalid
-                    pass
-        except ValueError:
-            # fileno is bad, issue 74
-            self.remove_descriptor(fileno)
-            raise
-
-    def remove_descriptor(self, fileno):
-        super(Hub, self).remove_descriptor(fileno)
-        try:
-            self.poll.unregister(fileno)
-        except (KeyError, ValueError, IOError, OSError):
-            # raised if we try to remove a fileno that was
-            # already removed/invalid
-            pass
-
-    def do_poll(self, seconds):
-        # poll.poll expects integral milliseconds
-        return self.poll.poll(int(seconds * 1000.0))
-
-    def wait(self, seconds=None):
-        readers = self.listeners[READ]
-        writers = self.listeners[WRITE]
-
-        if not readers and not writers:
-            if seconds:
-                sleep(seconds)
-            return
-        try:
-            presult = self.do_poll(seconds)
-        except (IOError, select.error) as e:
-            if get_errno(e) == errno.EINTR:
-                return
-            raise
-        SYSTEM_EXCEPTIONS = self.SYSTEM_EXCEPTIONS
-
-        if self.debug_blocking:
-            self.block_detect_pre()
-
-        # Accumulate the listeners to call back to prior to
-        # triggering any of them. This is to keep the set
-        # of callbacks in sync with the events we've just
-        # polled for. It prevents one handler from invalidating
-        # another.
-        callbacks = set()
-        for fileno, event in presult:
-            if event & READ_MASK:
-                callbacks.add((readers.get(fileno, noop), fileno))
-            if event & WRITE_MASK:
-                callbacks.add((writers.get(fileno, noop), fileno))
-            if event & select.POLLNVAL:
-                self.remove_descriptor(fileno)
-                continue
-            if event & EXC_MASK:
-                callbacks.add((readers.get(fileno, noop), fileno))
-                callbacks.add((writers.get(fileno, noop), fileno))
-
-        for listener, fileno in callbacks:
-            try:
-                listener.cb(fileno)
-            except SYSTEM_EXCEPTIONS:
-                raise
-            except:
-                self.squelch_exception(fileno, sys.exc_info())
-                clear_sys_exc_info()
-
-        if self.debug_blocking:
-            self.block_detect_post()