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import trio
from ..._errors import ProxyError
from ... import _abc as abc
DEFAULT_RECEIVE_SIZE = 65536
class TrioSocketStream(abc.AsyncSocketStream):
def __init__(self, sock):
self._socket = sock
async def write_all(self, data):
total_sent = 0
while total_sent < len(data):
remaining = data[total_sent:]
sent = await self._socket.send(remaining)
total_sent += sent
async def read(self, max_bytes=DEFAULT_RECEIVE_SIZE):
return await self._socket.recv(max_bytes)
async def read_exact(self, n):
data = bytearray()
while len(data) < n:
packet = await self._socket.recv(n - len(data))
if not packet: # pragma: no cover
raise ProxyError('Connection closed unexpectedly')
data += packet
return data
async def close(self):
if self._socket is not None:
self._socket.close()
await trio.lowlevel.checkpoint()
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