(
conn: _sslConn, length: int, loop: AbstractEventLoop, once: Optional[bool] = False
)
| 134 | loop.remove_writer(fd) |
| 135 | |
| 136 | async def _async_socket_receive_ssl( |
| 137 | conn: _sslConn, length: int, loop: AbstractEventLoop, once: Optional[bool] = False |
| 138 | ) -> memoryview: |
| 139 | mv = memoryview(bytearray(length)) |
| 140 | total_read = 0 |
| 141 | |
| 142 | def _is_ready(fut: Future[Any]) -> None: |
| 143 | if fut.done(): |
| 144 | return |
| 145 | fut.set_result(None) |
| 146 | |
| 147 | while total_read < length: |
| 148 | try: |
| 149 | read = conn.recv_into(mv[total_read:]) |
| 150 | if read == 0: |
| 151 | raise OSError("connection closed") |
| 152 | # KMS responses update their expected size after the first batch, stop reading after one loop |
| 153 | if once: |
| 154 | return mv[:read] |
| 155 | total_read += read |
| 156 | except BLOCKING_IO_ERRORS as exc: |
| 157 | fd = conn.fileno() |
| 158 | # Check for closed socket. |
| 159 | if fd == -1: |
| 160 | raise SSLError("Underlying socket has been closed") from None |
| 161 | if isinstance(exc, BLOCKING_IO_READ_ERROR): |
| 162 | fut = loop.create_future() |
| 163 | loop.add_reader(fd, _is_ready, fut) |
| 164 | try: |
| 165 | await fut |
| 166 | finally: |
| 167 | loop.remove_reader(fd) |
| 168 | if isinstance(exc, BLOCKING_IO_WRITE_ERROR): |
| 169 | fut = loop.create_future() |
| 170 | loop.add_writer(fd, _is_ready, fut) |
| 171 | try: |
| 172 | await fut |
| 173 | finally: |
| 174 | loop.remove_writer(fd) |
| 175 | if _HAVE_PYOPENSSL and isinstance(exc, BLOCKING_IO_LOOKUP_ERROR): |
| 176 | fut = loop.create_future() |
| 177 | loop.add_reader(fd, _is_ready, fut) |
| 178 | try: |
| 179 | loop.add_writer(fd, _is_ready, fut) |
| 180 | await fut |
| 181 | finally: |
| 182 | loop.remove_reader(fd) |
| 183 | loop.remove_writer(fd) |
| 184 | return mv |
| 185 | |
| 186 | else: |
| 187 | # The default Windows asyncio event loop does not support loop.add_reader/add_writer: |
no test coverage detected