Low-level API Index¶
This page lists all low-level asyncio APIs.
Obtenir une boucle d'évènements¶
The preferred function to get the running event loop. |
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Get an event loop instance (running or current via the current policy). |
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Set the event loop as current via the current policy. |
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Create a new event loop. |
Exemples
Méthodes de la boucle d'évènements¶
See also the main documentation section about the Méthodes de la boucle d'évènements.
Lifecycle
Run a Future/Task/awaitable until complete. |
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Run the event loop forever. |
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Arrête l'exécution de la boucle d'évènements. |
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Arrête la boucle d'évènements. |
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Return |
|
Return |
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Close asynchronous generators. |
Débogage
Enable or disable the debug mode. |
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Get the current debug mode. |
Scheduling Callbacks
Invoke a callback soon. |
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A thread-safe variant of |
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Invoke a callback after the given time. |
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Invoke a callback at the given time. |
Thread/Process Pool
|
Run a CPU-bound or other blocking function in
a |
Set the default executor for |
Tasks and Futures
Create a |
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Schedule coroutine as a |
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Set a factory used by |
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Get the factory |
DNS
|
Asynchronous version of |
|
Asynchronous version of |
Networking and IPC
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Open a TCP connection. |
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Create a TCP server. |
Open a Unix socket connection. |
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Create a Unix socket server. |
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Wrap a |
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Open a datagram (UDP) connection. |
|
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Send a file over a transport. |
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Upgrade an existing connection to TLS. |
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Wrap a read end of a pipe into a |
Wrap a write end of a pipe into a |
Interfaces de connexion (sockets)
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Receive data from the |
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Receive data from the |
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Send data to the |
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Connect the |
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Accept a |
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Send a file over the |
Start watching a file descriptor for read availability. |
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Stop watching a file descriptor for read availability. |
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Start watching a file descriptor for write availability. |
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Stop watching a file descriptor for write availability. |
Unix Signals
Add a handler for a |
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Remove a handler for a |
Sous-processus
Spawn a subprocess. |
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Spawn a subprocess from a shell command. |
Gestion des erreurs
Call the exception handler. |
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Set a new exception handler. |
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Get the current exception handler. |
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The default exception handler implementation. |
Exemples
Using
loop.create_connection()
to implement an echo-client.Using
loop.create_connection()
to connect a socket.
Transports¶
All transports implement the following methods:
Ferme le transport. |
|
Return |
|
Request for information about the transport. |
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Change le protocole. |
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Renvoie le protocole courant. |
Transports that can receive data (TCP and Unix connections,
pipes, etc). Returned from methods like
loop.create_connection()
, loop.create_unix_connection()
,
loop.connect_read_pipe()
, etc:
Read Transports
Return |
|
Pause receiving. |
|
Resume receiving. |
Transports that can Send data (TCP and Unix connections,
pipes, etc). Returned from methods like
loop.create_connection()
, loop.create_unix_connection()
,
loop.connect_write_pipe()
, etc:
Write Transports
Write data to the transport. |
|
Write buffers to the transport. |
|
Return |
|
Close and send EOF after flushing buffered data. |
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Close the transport immediately. |
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Return the current size of the output buffer. |
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Return high and low water marks for write flow control. |
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Set new high and low water marks for write flow control. |
Transports returned by loop.create_datagram_endpoint()
:
Transports de datagrammes
Send data to the remote peer. |
|
Close the transport immediately. |
Low-level transport abstraction over subprocesses.
Returned by loop.subprocess_exec()
and
loop.subprocess_shell()
:
Transports vers des sous-processus
Return the subprocess process id. |
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Return the transport for the requested communication pipe (stdin, stdout, or stderr). |
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Return the subprocess return code. |
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Tue le sous-processus. |
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Send a signal to the subprocess. |
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Termine le sous-processus. |
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Kill the subprocess and close all pipes. |
Protocoles¶
Protocol classes can implement the following callback methods:
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Appelé lorsqu'une connexion est établie. |
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Appelé lorsqu'une connexion est perdue ou fermée. |
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Called when the transport's buffer goes over the high water mark. |
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Called when the transport's buffer drains below the low water mark. |
Streaming Protocols (TCP, Unix Sockets, Pipes)
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Called when some data is received. |
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Called when an EOF is received. |
Buffered Streaming Protocols
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Called to allocate a new receive buffer. |
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Called when the buffer was updated with the received data. |
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Called when an EOF is received. |
Protocoles non-connectés
|
Called when a datagram is received. |
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Called when a previous send or receive operation raises an
|
Protocoles liés aux sous-processus
|
Called when the child process writes data into its stdout or stderr pipe. |
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Appelé lorsqu'une des pipes de communication avec un sous-processus est fermée. |
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Appelé lorsqu'un processus enfant se termine. |
Event Loop Policies¶
Policies is a low-level mechanism to alter the behavior of
functions like asyncio.get_event_loop()
. See also
the main policies section for more
details.
Accessing Policies
Renvoie la stratégie actuelle à l'échelle du processus. |
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Set a new process-wide policy. |
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Base class for policy objects. |