diff options
Diffstat (limited to 'Lib/asyncio/proactor_events.py')
| -rw-r--r-- | Lib/asyncio/proactor_events.py | 55 |
1 files changed, 2 insertions, 53 deletions
diff --git a/Lib/asyncio/proactor_events.py b/Lib/asyncio/proactor_events.py index b2ac632..d72f927 100644 --- a/Lib/asyncio/proactor_events.py +++ b/Lib/asyncio/proactor_events.py @@ -15,7 +15,8 @@ from . import transports from .log import logger -class _ProactorBasePipeTransport(transports.BaseTransport): +class _ProactorBasePipeTransport(transports._FlowControlMixin, + transports.BaseTransport): """Base class for pipe and socket transports.""" def __init__(self, loop, sock, protocol, waiter=None, @@ -33,8 +34,6 @@ class _ProactorBasePipeTransport(transports.BaseTransport): self._conn_lost = 0 self._closing = False # Set when close() called. self._eof_written = False - self._protocol_paused = False - self.set_write_buffer_limits() if self._server is not None: self._server.attach(self) self._loop.call_soon(self._protocol.connection_made, self) @@ -94,56 +93,6 @@ class _ProactorBasePipeTransport(transports.BaseTransport): server.detach(self) self._server = None - # XXX The next four methods are nearly identical to corresponding - # ones in _SelectorTransport. Maybe refactor buffer management to - # share the implementations? (Also these are really only needed - # by _ProactorWritePipeTransport but since _buffer is defined on - # the base class I am putting it here for now.) - - def _maybe_pause_protocol(self): - size = self.get_write_buffer_size() - if size <= self._high_water: - return - if not self._protocol_paused: - self._protocol_paused = True - try: - self._protocol.pause_writing() - except Exception as exc: - self._loop.call_exception_handler({ - 'message': 'protocol.pause_writing() failed', - 'exception': exc, - 'transport': self, - 'protocol': self._protocol, - }) - - def _maybe_resume_protocol(self): - if (self._protocol_paused and - self.get_write_buffer_size() <= self._low_water): - self._protocol_paused = False - try: - self._protocol.resume_writing() - except Exception as exc: - self._loop.call_exception_handler({ - 'message': 'protocol.resume_writing() failed', - 'exception': exc, - 'transport': self, - 'protocol': self._protocol, - }) - - def set_write_buffer_limits(self, high=None, low=None): - if high is None: - if low is None: - high = 64*1024 - else: - high = 4*low - if low is None: - low = high // 4 - if not high >= low >= 0: - raise ValueError('high (%r) must be >= low (%r) must be >= 0' % - (high, low)) - self._high_water = high - self._low_water = low - def get_write_buffer_size(self): size = self._pending_write if self._buffer is not None: |