gevent.selectors
– High-level IO Multiplexing¶This module provides GeventSelector
, a high-level IO
multiplexing mechanism. This is aliased to DefaultSelector
.
This module provides the same API as the selectors defined in selectors
.
On Python 2, this module is only available if the selectors2 backport is installed.
New in version 20.6.0.
SelectorKey
(fileobj, fd, events, data)¶Bases: tuple
Create new instance of SelectorKey(fileobj, fd, events, data)
data
¶Alias for field number 3
events
¶Alias for field number 2
fd
¶Alias for field number 1
fileobj
¶Alias for field number 0
DefaultSelector
¶alias of gevent.selectors.GeventSelector
BaseSelector
¶Bases: object
Abstract Selector class
A selector supports registering file objects to be monitored for specific I/O events.
A file object is a file descriptor or any object with a
fileno()
method. An arbitrary object can be attached to the
file object which can be used for example to store context info,
a callback, etc.
A selector can use various implementations (select(), poll(), epoll(), and kqueue()) depending on the platform. The ‘DefaultSelector’ class uses the most efficient implementation for the current platform.
close
()¶Close the selector. This must be called to ensure that all underlying resources are freed.
get_key
(fileobj)¶Return the key associated with a registered file object.
get_map
()¶Return a mapping of file objects to selector keys
modify
(fileobj, events, data=None)¶Change a registered file object monitored events and data.
register
(fileobj, events, data=None)¶Register a file object for a set of events to monitor.
select
(timeout=None)¶Perform the actual selection until some monitored file objects are ready or the timeout expires.
unregister
(fileobj)¶Unregister a file object from being monitored.
SelectSelector
¶Bases: selectors2.BaseSelector
Select-based selector.
register
(fileobj, events, data=None)¶Register a file object for a set of events to monitor.
select
(timeout=None)¶Perform the actual selection until some monitored file objects are ready or the timeout expires.
unregister
(fileobj)¶Unregister a file object from being monitored.
PollSelector
¶Bases: selectors2.BaseSelector
Poll-based selector
register
(fileobj, events, data=None)¶Register a file object for a set of events to monitor.
select
(timeout=None)¶Perform the actual selection until some monitored file objects are ready or the timeout expires.
unregister
(fileobj)¶Unregister a file object from being monitored.
EpollSelector
¶Bases: selectors2.BaseSelector
Epoll-based selector
close
()¶Close the selector. This must be called to ensure that all underlying resources are freed.
register
(fileobj, events, data=None)¶Register a file object for a set of events to monitor.
select
(timeout=None)¶Perform the actual selection until some monitored file objects are ready or the timeout expires.
unregister
(fileobj)¶Unregister a file object from being monitored.
Next page: gevent.event
– Notifications of multiple listeners