[Python-checkins] cpython: asyncio doc: group transport method by classes
victor.stinner
python-checkins at python.org
Mon Dec 2 17:52:44 CET 2013
http://hg.python.org/cpython/rev/1d3fbfdc94ce
changeset: 87709:1d3fbfdc94ce
user: Victor Stinner <victor.stinner at gmail.com>
date: Mon Dec 02 17:46:04 2013 +0100
summary:
asyncio doc: group transport method by classes
Declare classes because they are mentionned in documentation of other functions
files:
Doc/library/asyncio.rst | 207 +++++++++++++++------------
1 files changed, 113 insertions(+), 94 deletions(-)
diff --git a/Doc/library/asyncio.rst b/Doc/library/asyncio.rst
--- a/Doc/library/asyncio.rst
+++ b/Doc/library/asyncio.rst
@@ -633,100 +633,116 @@
subprocess pipes. The methods available on a transport depend on
the transport's kind.
-Methods common to all transports
-^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
-.. method:: BaseTransport.close(self)
+Methods common to all transports: BaseTransport
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
- Close the transport. If the transport has a buffer for outgoing
- data, buffered data will be flushed asynchronously. No more data
- will be received. After all buffered data is flushed, the
- protocol's :meth:`connection_lost` method will be called with
- :const:`None` as its argument.
+.. class:: BaseTransport
+ Base class for transports.
-.. method:: BaseTransport.get_extra_info(name, default=None)
+ .. method:: close(self)
- Return optional transport information. *name* is a string representing
- the piece of transport-specific information to get, *default* is the
- value to return if the information doesn't exist.
+ Close the transport. If the transport has a buffer for outgoing
+ data, buffered data will be flushed asynchronously. No more data
+ will be received. After all buffered data is flushed, the
+ protocol's :meth:`connection_lost` method will be called with
+ :const:`None` as its argument.
- This method allows transport implementations to easily expose
- channel-specific information.
-Methods of readable streaming transports
-^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+ .. method:: get_extra_info(name, default=None)
-.. method:: ReadTransport.pause_reading()
+ Return optional transport information. *name* is a string representing
+ the piece of transport-specific information to get, *default* is the
+ value to return if the information doesn't exist.
- Pause the receiving end of the transport. No data will be passed to
- the protocol's :meth:`data_received` method until meth:`resume_reading`
- is called.
+ This method allows transport implementations to easily expose
+ channel-specific information.
-.. method:: ReadTransport.resume_reading()
- Resume the receiving end. The protocol's :meth:`data_received` method
- will be called once again if some data is available for reading.
+Methods of readable streaming transports: ReadTransport
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
-Methods of writable streaming transports
-^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+.. class:: ReadTransport
-.. method:: WriteTransport.write(data)
+ Interface for read-only transports.
- Write some *data* bytes to the transport.
+ .. method:: pause_reading()
- This method does not block; it buffers the data and arranges for it
- to be sent out asynchronously.
+ Pause the receiving end of the transport. No data will be passed to
+ the protocol's :meth:`data_received` method until meth:`resume_reading`
+ is called.
-.. method:: WriteTransport.writelines(list_of_data)
+ .. method:: resume_reading()
- Write a list (or any iterable) of data bytes to the transport.
- This is functionally equivalent to calling :meth:`write` on each
- element yielded by the iterable, but may be implemented more efficiently.
+ Resume the receiving end. The protocol's :meth:`data_received` method
+ will be called once again if some data is available for reading.
-.. method:: WriteTransport.write_eof()
- Close the write end of the transport after flushing buffered data.
- Data may still be received.
+Methods of writable streaming transports: WriteTransport
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
- This method can raise :exc:`NotImplementedError` if the transport
- (e.g. SSL) doesn't support half-closes.
+.. class:: WriteTransport
-.. method:: WriteTransport.can_write_eof()
+ Interface for write-only transports.
- Return :const:`True` if the transport supports :meth:`write_eof`,
- :const:`False` if not.
+ .. method:: write(data)
-.. method:: WriteTransport.abort()
+ Write some *data* bytes to the transport.
- Close the transport immediately, without waiting for pending operations
- to complete. Buffered data will be lost. No more data will be received.
- The protocol's :meth:`connection_lost` method will eventually be
- called with :const:`None` as its argument.
+ This method does not block; it buffers the data and arranges for it
+ to be sent out asynchronously.
-.. method:: WriteTransport.set_write_buffer_limits(high=None, low=None)
+ .. method:: writelines(list_of_data)
- Set the *high*- and *low*-water limits for write flow control.
+ Write a list (or any iterable) of data bytes to the transport.
+ This is functionally equivalent to calling :meth:`write` on each
+ element yielded by the iterable, but may be implemented more efficiently.
- These two values control when call the protocol's
- :meth:`pause_writing` and :meth:`resume_writing` methods are called.
- If specified, the low-water limit must be less than or equal to the
- high-water limit. Neither *high* nor *low* can be negative.
+ .. method:: write_eof()
- The defaults are implementation-specific. If only the
- high-water limit is given, the low-water limit defaults to a
- implementation-specific value less than or equal to the
- high-water limit. Setting *high* to zero forces *low* to zero as
- well, and causes :meth:`pause_writing` to be called whenever the
- buffer becomes non-empty. Setting *low* to zero causes
- :meth:`resume_writing` to be called only once the buffer is empty.
- Use of zero for either limit is generally sub-optimal as it
- reduces opportunities for doing I/O and computation
- concurrently.
+ Close the write end of the transport after flushing buffered data.
+ Data may still be received.
-.. method:: WriteTransport.get_write_buffer_size()
+ This method can raise :exc:`NotImplementedError` if the transport
+ (e.g. SSL) doesn't support half-closes.
- Return the current size of the output buffer used by the transport.
+ .. method:: can_write_eof()
+
+ Return :const:`True` if the transport supports :meth:`write_eof`,
+ :const:`False` if not.
+
+ .. method:: abort()
+
+ Close the transport immediately, without waiting for pending operations
+ to complete. Buffered data will be lost. No more data will be received.
+ The protocol's :meth:`connection_lost` method will eventually be
+ called with :const:`None` as its argument.
+
+ .. method:: set_write_buffer_limits(high=None, low=None)
+
+ Set the *high*- and *low*-water limits for write flow control.
+
+ These two values control when call the protocol's
+ :meth:`pause_writing` and :meth:`resume_writing` methods are called.
+ If specified, the low-water limit must be less than or equal to the
+ high-water limit. Neither *high* nor *low* can be negative.
+
+ The defaults are implementation-specific. If only the
+ high-water limit is given, the low-water limit defaults to a
+ implementation-specific value less than or equal to the
+ high-water limit. Setting *high* to zero forces *low* to zero as
+ well, and causes :meth:`pause_writing` to be called whenever the
+ buffer becomes non-empty. Setting *low* to zero causes
+ :meth:`resume_writing` to be called only once the buffer is empty.
+ Use of zero for either limit is generally sub-optimal as it
+ reduces opportunities for doing I/O and computation
+ concurrently.
+
+ .. method:: get_write_buffer_size()
+
+ Return the current size of the output buffer used by the transport.
+
Methods of datagram transports
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
@@ -747,47 +763,50 @@
The protocol's :meth:`connection_lost` method will eventually be
called with :const:`None` as its argument.
+
Methods of subprocess transports
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
-.. method:: BaseSubprocessTransport.get_pid()
+.. class:: BaseSubprocessTransport
- Return the subprocess process id as an integer.
+ .. method:: get_pid()
-.. method:: BaseSubprocessTransport.get_returncode()
+ Return the subprocess process id as an integer.
- Return the subprocess returncode as an integer or :const:`None`
- if it hasn't returned, similarly to the
- :attr:`subprocess.Popen.returncode` attribute.
+ .. method:: get_returncode()
-.. method:: BaseSubprocessTransport.get_pipe_transport(fd)
+ Return the subprocess returncode as an integer or :const:`None`
+ if it hasn't returned, similarly to the
+ :attr:`subprocess.Popen.returncode` attribute.
- Return the transport for the communication pipe correspondong to the
- integer file descriptor *fd*. The return value can be a readable or
- writable streaming transport, depending on the *fd*. If *fd* doesn't
- correspond to a pipe belonging to this transport, :const:`None` is
- returned.
+ .. method:: get_pipe_transport(fd)
-.. method:: BaseSubprocessTransport.send_signal(signal)
+ Return the transport for the communication pipe correspondong to the
+ integer file descriptor *fd*. The return value can be a readable or
+ writable streaming transport, depending on the *fd*. If *fd* doesn't
+ correspond to a pipe belonging to this transport, :const:`None` is
+ returned.
- Send the *signal* number to the subprocess, as in
- :meth:`subprocess.Popen.send_signal`.
+ .. method:: send_signal(signal)
-.. method:: BaseSubprocessTransport.terminate()
+ Send the *signal* number to the subprocess, as in
+ :meth:`subprocess.Popen.send_signal`.
- Ask the subprocess to stop, as in :meth:`subprocess.Popen.terminate`.
- This method is an alias for the :meth:`close` method.
+ .. method:: terminate()
- On POSIX systems, this method sends SIGTERM to the subprocess.
- On Windows, the Windows API function TerminateProcess() is called to
- stop the subprocess.
+ Ask the subprocess to stop, as in :meth:`subprocess.Popen.terminate`.
+ This method is an alias for the :meth:`close` method.
-.. method:: BaseSubprocessTransport.kill(self)
+ On POSIX systems, this method sends SIGTERM to the subprocess.
+ On Windows, the Windows API function TerminateProcess() is called to
+ stop the subprocess.
- Kill the subprocess, as in :meth:`subprocess.Popen.kill`
+ .. method:: kill(self)
- On POSIX systems, the function sends SIGKILL to the subprocess.
- On Windows, this method is an alias for :meth:`terminate`.
+ Kill the subprocess, as in :meth:`subprocess.Popen.kill`
+
+ On POSIX systems, the function sends SIGKILL to the subprocess.
+ On Windows, this method is an alias for :meth:`terminate`.
Task functions
@@ -843,12 +862,12 @@
Return ``True`` if *obj* is a coroutine object.
-.. function:: sleep(delay, result=None, *, loop=None)
+.. function:: sleep(delay, result=None, \*, loop=None)
Create a :ref:`coroutine <coroutine>` that completes after a given time
(in seconds).
-.. function:: shield(arg, *, loop=None)
+.. function:: shield(arg, \*, loop=None)
Wait for a future, shielding it from cancellation.
@@ -879,7 +898,7 @@
Task
----
-.. class:: Task(coro, *, loop=None)
+.. class:: Task(coro, \*, loop=None)
A coroutine wrapped in a :class:`~concurrent.futures.Future`.
@@ -893,7 +912,7 @@
Cancel the task.
- .. method:: get_stack(self, *, limit=None)
+ .. method:: get_stack(self, \*, limit=None)
Return the list of stack frames for this task's coroutine.
@@ -913,7 +932,7 @@
For reasons beyond our control, only one stack frame is returned for a
suspended coroutine.
- .. method:: print_stack(*, limit=None, file=None)
+ .. method:: print_stack(\*, limit=None, file=None)
Print the stack or traceback for this task's coroutine.
--
Repository URL: http://hg.python.org/cpython
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