FM / asyncio

/usr/lib/python3.10/asyncio

Name	Size	Mode	Actions
__pycache__/	-	0755	rm
base_events.py	74341	0644	edit dl rm
base_futures.py	2574	0644	edit dl rm
base_subprocess.py	8843	0644	edit dl rm
base_tasks.py	2467	0644	edit dl rm
constants.py	888	0644	edit dl rm
coroutines.py	8797	0644	edit dl rm
events.py	27346	0644	edit dl rm
exceptions.py	1633	0644	edit dl rm
format_helpers.py	2404	0644	edit dl rm
futures.py	14187	0644	edit dl rm
locks.py	14122	0644	edit dl rm
log.py	124	0644	edit dl rm
mixins.py	803	0644	edit dl rm
proactor_events.py	32541	0644	edit dl rm
protocols.py	6957	0644	edit dl rm
queues.py	8034	0644	edit dl rm
runners.py	2104	0644	edit dl rm
selector_events.py	39700	0644	edit dl rm
sslproto.py	27459	0644	edit dl rm
staggered.py	5992	0644	edit dl rm
streams.py	25749	0644	edit dl rm
subprocess.py	7405	0644	edit dl rm
tasks.py	32458	0644	edit dl rm
threads.py	790	0644	edit dl rm
transports.py	10724	0644	edit dl rm
trsock.py	5876	0644	edit dl rm
unix_events.py	51624	0644	edit dl rm
windows_events.py	33394	0644	edit dl rm
windows_utils.py	5060	0644	edit dl rm
__init__.py	1108	0644	edit dl rm
__main__.py	3343	0644	edit dl rm

Edit: /usr/lib/python3.10/asyncio/base_subprocess.py (8843B)

import collections
import subprocess
import warnings

from . import protocols
from . import transports
from .log import logger

class BaseSubprocessTransport(transports.SubprocessTransport):

def __init__(self, loop, protocol, args, shell,
                 stdin, stdout, stderr, bufsize,
                 waiter=None, extra=None, **kwargs):
        super().__init__(extra)
        self._closed = False
        self._protocol = protocol
        self._loop = loop
        self._proc = None
        self._pid = None
        self._returncode = None
        self._exit_waiters = []
        self._pending_calls = collections.deque()
        self._pipes = {}
        self._finished = False

if stdin == subprocess.PIPE:
            self._pipes[0] = None
        if stdout == subprocess.PIPE:
            self._pipes[1] = None
        if stderr == subprocess.PIPE:
            self._pipes[2] = None

# Create the child process: set the _proc attribute
        try:
            self._start(args=args, shell=shell, stdin=stdin, stdout=stdout,
                        stderr=stderr, bufsize=bufsize, **kwargs)
        except:
            self.close()
            raise

self._pid = self._proc.pid
        self._extra['subprocess'] = self._proc

if self._loop.get_debug():
            if isinstance(args, (bytes, str)):
                program = args
            else:
                program = args[0]
            logger.debug('process %r created: pid %s',
                         program, self._pid)

self._loop.create_task(self._connect_pipes(waiter))

def __repr__(self):
        info = [self.__class__.__name__]
        if self._closed:
            info.append('closed')
        if self._pid is not None:
            info.append(f'pid={self._pid}')
        if self._returncode is not None:
            info.append(f'returncode={self._returncode}')
        elif self._pid is not None:
            info.append('running')
        else:
            info.append('not started')

stdin = self._pipes.get(0)
        if stdin is not None:
            info.append(f'stdin={stdin.pipe}')

stdout = self._pipes.get(1)
        stderr = self._pipes.get(2)
        if stdout is not None and stderr is stdout:
            info.append(f'stdout=stderr={stdout.pipe}')
        else:
            if stdout is not None:
                info.append(f'stdout={stdout.pipe}')
            if stderr is not None:
                info.append(f'stderr={stderr.pipe}')

return '<{}>'.format(' '.join(info))

def _start(self, args, shell, stdin, stdout, stderr, bufsize, **kwargs):
        raise NotImplementedError

def set_protocol(self, protocol):
        self._protocol = protocol

def get_protocol(self):
        return self._protocol

def is_closing(self):
        return self._closed

def close(self):
        if self._closed:
            return
        self._closed = True

for proto in self._pipes.values():
            if proto is None:
                continue
            proto.pipe.close()

if (self._proc is not None and
                # has the child process finished?
                self._returncode is None and
                # the child process has finished, but the
                # transport hasn't been notified yet?
                self._proc.poll() is None):

if self._loop.get_debug():
                logger.warning('Close running child process: kill %r', self)

try:
                self._proc.kill()
            except ProcessLookupError:
                pass

# Don't clear the _proc reference yet: _post_init() may still run

def __del__(self, _warn=warnings.warn):
        if not self._closed:
            _warn(f"unclosed transport {self!r}", ResourceWarning, source=self)
            self.close()

def get_pid(self):
        return self._pid

def get_returncode(self):
        return self._returncode

def get_pipe_transport(self, fd):
        if fd in self._pipes:
            return self._pipes[fd].pipe
        else:
            return None

def _check_proc(self):
        if self._proc is None:
            raise ProcessLookupError()

def send_signal(self, signal):
        self._check_proc()
        self._proc.send_signal(signal)

def terminate(self):
        self._check_proc()
        self._proc.terminate()

def kill(self):
        self._check_proc()
        self._proc.kill()

async def _connect_pipes(self, waiter):
        try:
            proc = self._proc
            loop = self._loop

if proc.stdin is not None:
                _, pipe = await loop.connect_write_pipe(
                    lambda: WriteSubprocessPipeProto(self, 0),
                    proc.stdin)
                self._pipes[0] = pipe

if proc.stdout is not None:
                _, pipe = await loop.connect_read_pipe(
                    lambda: ReadSubprocessPipeProto(self, 1),
                    proc.stdout)
                self._pipes[1] = pipe

if proc.stderr is not None:
                _, pipe = await loop.connect_read_pipe(
                    lambda: ReadSubprocessPipeProto(self, 2),
                    proc.stderr)
                self._pipes[2] = pipe

assert self._pending_calls is not None

loop.call_soon(self._protocol.connection_made, self)
            for callback, data in self._pending_calls:
                loop.call_soon(callback, *data)
            self._pending_calls = None
        except (SystemExit, KeyboardInterrupt):
            raise
        except BaseException as exc:
            if waiter is not None and not waiter.cancelled():
                waiter.set_exception(exc)
        else:
            if waiter is not None and not waiter.cancelled():
                waiter.set_result(None)

def _call(self, cb, *data):
        if self._pending_calls is not None:
            self._pending_calls.append((cb, data))
        else:
            self._loop.call_soon(cb, *data)

def _pipe_connection_lost(self, fd, exc):
        self._call(self._protocol.pipe_connection_lost, fd, exc)
        self._try_finish()

def _pipe_data_received(self, fd, data):
        self._call(self._protocol.pipe_data_received, fd, data)

def _process_exited(self, returncode):
        assert returncode is not None, returncode
        assert self._returncode is None, self._returncode
        if self._loop.get_debug():
            logger.info('%r exited with return code %r', self, returncode)
        self._returncode = returncode
        if self._proc.returncode is None:
            # asyncio uses a child watcher: copy the status into the Popen
            # object. On Python 3.6, it is required to avoid a ResourceWarning.
            self._proc.returncode = returncode
        self._call(self._protocol.process_exited)
        self._try_finish()

# wake up futures waiting for wait()
        for waiter in self._exit_waiters:
            if not waiter.cancelled():
                waiter.set_result(returncode)
        self._exit_waiters = None

async def _wait(self):
        """Wait until the process exit and return the process return code.

This method is a coroutine."""
        if self._returncode is not None:
            return self._returncode

waiter = self._loop.create_future()
        self._exit_waiters.append(waiter)
        return await waiter

def _try_finish(self):
        assert not self._finished
        if self._returncode is None:
            return
        if all(p is not None and p.disconnected
               for p in self._pipes.values()):
            self._finished = True
            self._call(self._call_connection_lost, None)

def _call_connection_lost(self, exc):
        try:
            self._protocol.connection_lost(exc)
        finally:
            self._loop = None
            self._proc = None
            self._protocol = None

class WriteSubprocessPipeProto(protocols.BaseProtocol):

def __init__(self, proc, fd):
        self.proc = proc
        self.fd = fd
        self.pipe = None
        self.disconnected = False

def connection_made(self, transport):
        self.pipe = transport

def __repr__(self):
        return f'<{self.__class__.__name__} fd={self.fd} pipe={self.pipe!r}>'

def connection_lost(self, exc):
        self.disconnected = True
        self.proc._pipe_connection_lost(self.fd, exc)
        self.proc = None

def pause_writing(self):
        self.proc._protocol.pause_writing()

def resume_writing(self):
        self.proc._protocol.resume_writing()

class ReadSubprocessPipeProto(WriteSubprocessPipeProto,
                              protocols.Protocol):

def data_received(self, data):
        self.proc._pipe_data_received(self.fd, data)

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