Skip to content
Projects
Groups
Snippets
Help
Loading...
Help
Support
Keyboard shortcuts
?
Submit feedback
Contribute to GitLab
Sign in / Register
Toggle navigation
M
mitogen
Project overview
Project overview
Details
Activity
Releases
Repository
Repository
Files
Commits
Branches
Tags
Contributors
Graph
Compare
Labels
Merge Requests
0
Merge Requests
0
Analytics
Analytics
Repository
Value Stream
Members
Members
Collapse sidebar
Close sidebar
Activity
Graph
Commits
Open sidebar
nexedi
mitogen
Commits
fb759f7c
Commit
fb759f7c
authored
Oct 06, 2017
by
David Wilson
Browse files
Options
Browse Files
Download
Email Patches
Plain Diff
docs: move Broker docstrings into Sphinx.
parent
1d60c244
Changes
3
Show whitespace changes
Inline
Side-by-side
Showing
3 changed files
with
90 additions
and
42 deletions
+90
-42
docs/api.rst
docs/api.rst
+90
-5
docs/getting_started.rst
docs/getting_started.rst
+0
-14
mitogen/core.py
mitogen/core.py
+0
-23
No files found.
docs/api.rst
View file @
fb759f7c
...
...
@@ -355,6 +355,14 @@ Router Class
masters, and child contexts who later become masters. Currently when this
class is required, the target context's router is upgraded at runtime.
.. note::
You may construct as many routers as desired, and use the same broker
for multiple routers, however usually only one broker and router need
exist. Multiple routers may be useful when dealing with separate trust
domains, for example, manipulating infrastructure belonging to separate
customers or projects.
.. data:: profiling
When enabled, causes the broker thread and any subsequent broker and
...
...
@@ -748,13 +756,90 @@ Broker Class
============
.. currentmodule:: mitogen.core
.. autoclass:: Broker
:members:
:inherited-members:
.. class:: Broker
Responsible for handling I/O multiplexing in a private thread.
**Note:** This is the somewhat limited core version of the Broker class
used by child contexts. The master subclass is documented below this one.
.. attribute:: shutdown_timeout = 3.0
Seconds grace to allow :py:class:`streams <Stream>` to shutdown
gracefully before force-disconnecting them during :py:meth:`shutdown`.
.. method:: defer (func, \*args, \*kwargs)
Arrange for `func(\*args, \**kwargs)` to be executed on the broker
thread, or immediately if the current thread is the broker thread. Safe
to call from any thread.
.. method:: start_receive (stream)
Mark the :py:attr:`receive_side <Stream.receive_side>` on `stream` as
ready for reading. Safe to call from any thread. When the associated
file descriptor becomes ready for reading,
:py:meth:`BasicStream.on_receive` will be called.
.. method:: stop_receive (stream)
Mark the :py:attr:`receive_side <Stream.receive_side>` on `stream` as
not ready for reading. Safe to call from any thread.
.. method:: start_transmit (stream)
Mark the :py:attr:`transmit_side <Stream.transmit_side>` on `stream` as
ready for writing. Safe to call from any thread. When the associated
file descriptor becomes ready for writing,
:py:meth:`BasicStream.on_transmit` will be called.
.. method:: stop_receive (stream)
Mark the :py:attr:`transmit_side <Stream.receive_side>` on `stream` as
not ready for writing. Safe to call from any thread.
.. method:: shutdown
Request broker gracefully disconnect streams and stop.
.. method:: join
Wait for the broker to stop, expected to be called after
:py:meth:`shutdown`.
.. method:: keep_alive
Return ``True`` if any reader's :py:attr:`Side.keep_alive` attribute is
``True``, or any :py:class:`Context` is still registered that is not
the master. Used to delay shutdown while some important work is in
progress (e.g. log draining).
**Internal Methods**
.. method:: _broker_main
Handle events until :py:meth:`shutdown`. On shutdown, invoke
:py:meth:`Stream.on_shutdown` for every active stream, then allow up to
:py:attr:`shutdown_timeout` seconds for the streams to unregister
themselves before forcefully calling
:py:meth:`Stream.on_disconnect`.
.. currentmodule:: mitogen.master
.. autoclass:: Broker
:members:
.. class:: Broker
.. note::
You may construct as many brokers as desired, and use the same broker
for multiple routers, however usually only one broker need exist.
Multiple brokers may be useful when dealing with sets of children with
differing lifetimes. For example, a subscription service where
non-payment results in termination for one customer.
.. attribute:: shutdown_timeout = 5.0
Seconds grace to allow :py:class:`streams <Stream>` to shutdown
gracefully before force-disconnecting them during :py:meth:`shutdown`.
Utility Functions
...
...
docs/getting_started.rst
View file @
fb759f7c
...
...
@@ -83,20 +83,6 @@ If your program cannot live beneath :py:func:`mitogen.utils.run_with_router` on
the stack, you must arrange for :py:meth:`Broker.shutdown` to be called
anywhere the main thread may exit.
.. note::
You may construct as many routers and brokers in a process as desired, and
use the same broker for multiple routers, however in the usual case only
one broker and router need exist.
It may be useful to construct multiple routers when a service is dealing
with separate trust domains, for example, manipulating infrastructure
belonging to separate customers or separate projects.
It may be useful to construct multiple brokers when a service is dealing
with sets of children with differing lifetimes. For example, a subscription
service where non-payment results in termination for one customer.
Enable Logging
--------------
...
...
mitogen/core.py
View file @
fb759f7c
...
...
@@ -925,15 +925,8 @@ class Router(object):
class
Broker
(
object
):
"""
Responsible for tracking contexts, their associated streams and I/O
multiplexing.
"""
_waker
=
None
_thread
=
None
#: Seconds grace to allow :py:class:`Streams <Stream>` to shutdown
#: gracefully before force-disconnecting them during :py:meth:`shutdown`.
shutdown_timeout
=
3.0
def
__init__
(
self
):
...
...
@@ -958,10 +951,6 @@ class Broker(object):
self
.
_waker
.
wake
()
def
start_receive
(
self
,
stream
):
"""Mark the :py:attr:`receive_side <Stream.receive_side>` on `stream` as
ready for reading. May be called from any thread. When the associated
file descriptor becomes ready for reading,
:py:meth:`BasicStream.on_transmit` will be called."""
IOLOG
.
debug
(
'%r.start_receive(%r)'
,
self
,
stream
)
assert
stream
.
receive_side
and
stream
.
receive_side
.
fd
is
not
None
self
.
defer
(
self
.
_readers
.
add
,
stream
.
receive_side
)
...
...
@@ -1013,19 +1002,10 @@ class Broker(object):
self
.
_call
(
side
.
stream
,
side
.
stream
.
on_transmit
)
def
keep_alive
(
self
):
"""Return ``True`` if any reader's :py:attr:`Side.keep_alive`
attribute is ``True``, or any :py:class:`Context` is still registered
that is not the master. Used to delay shutdown while some important
work is in progress (e.g. log draining)."""
return
(
sum
((
side
.
keep_alive
for
side
in
self
.
_readers
),
0
)
+
(
not
self
.
_queue
.
empty
()))
def
_broker_main
(
self
):
"""Handle events until :py:meth:`shutdown`. On shutdown, invoke
:py:meth:`Stream.on_shutdown` for every active stream, then allow up to
:py:attr:`shutdown_timeout` seconds for the streams to unregister
themselves before forcefully calling
:py:meth:`Stream.on_disconnect`."""
try
:
while
self
.
_alive
:
self
.
_loop_once
()
...
...
@@ -1054,14 +1034,11 @@ class Broker(object):
fire
(
self
,
'exit'
)
def
shutdown
(
self
):
"""Request broker gracefully disconnect streams and stop."""
LOG
.
debug
(
'%r.shutdown()'
,
self
)
self
.
_alive
=
False
self
.
_waker
.
wake
()
def
join
(
self
):
"""Wait for the broker to stop, expected to be called after
:py:meth:`shutdown`."""
self
.
_thread
.
join
()
def
__repr__
(
self
):
...
...
Write
Preview
Markdown
is supported
0%
Try again
or
attach a new file
Attach a file
Cancel
You are about to add
0
people
to the discussion. Proceed with caution.
Finish editing this message first!
Cancel
Please
register
or
sign in
to comment