forked from M-Labs/artiq
614 lines
19 KiB
Python
614 lines
19 KiB
Python
import struct
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import logging
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import socket
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import sys
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import traceback
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import numpy
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from enum import Enum
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from fractions import Fraction
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from collections import namedtuple
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from artiq.coredevice import exceptions
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from artiq import __version__ as software_version
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logger = logging.getLogger(__name__)
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class _H2DMsgType(Enum):
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LOG_REQUEST = 1
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LOG_CLEAR = 2
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LOG_FILTER = 13
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SYSTEM_INFO_REQUEST = 3
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SWITCH_CLOCK = 4
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LOAD_KERNEL = 5
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RUN_KERNEL = 6
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RPC_REPLY = 7
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RPC_EXCEPTION = 8
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FLASH_READ_REQUEST = 9
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FLASH_WRITE_REQUEST = 10
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FLASH_ERASE_REQUEST = 11
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FLASH_REMOVE_REQUEST = 12
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HOTSWAP = 14
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class _D2HMsgType(Enum):
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LOG_REPLY = 1
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SYSTEM_INFO_REPLY = 2
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CLOCK_SWITCH_COMPLETED = 3
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CLOCK_SWITCH_FAILED = 4
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LOAD_COMPLETED = 5
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LOAD_FAILED = 6
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KERNEL_FINISHED = 7
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KERNEL_STARTUP_FAILED = 8
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KERNEL_EXCEPTION = 9
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RPC_REQUEST = 10
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FLASH_READ_REPLY = 11
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FLASH_OK_REPLY = 12
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FLASH_ERROR_REPLY = 13
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WATCHDOG_EXPIRED = 14
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CLOCK_FAILURE = 15
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HOTSWAP_IMMINENT = 16
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class _LogLevel(Enum):
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OFF = 0
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ERROR = 1
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WARN = 2
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INFO = 3
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DEBUG = 4
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TRACE = 5
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class UnsupportedDevice(Exception):
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pass
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class LoadError(Exception):
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pass
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class RPCReturnValueError(ValueError):
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pass
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RPCKeyword = namedtuple('RPCKeyword', ['name', 'value'])
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def set_keepalive(sock, after_idle, interval, max_fails):
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if sys.platform.startswith("linux"):
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sock.setsockopt(socket.SOL_SOCKET, socket.SO_KEEPALIVE, 1)
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sock.setsockopt(socket.IPPROTO_TCP, socket.TCP_KEEPIDLE, after_idle)
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sock.setsockopt(socket.IPPROTO_TCP, socket.TCP_KEEPINTVL, interval)
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sock.setsockopt(socket.IPPROTO_TCP, socket.TCP_KEEPCNT, max_fails)
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elif sys.platform.startswith("win") or sys.platform.startswith("cygwin"):
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# setting max_fails is not supported, typically ends up being 5 or 10
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# depending on Windows version
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sock.ioctl(socket.SIO_KEEPALIVE_VALS,
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(1, after_idle*1000, interval*1000))
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else:
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logger.warning("TCP keepalive not supported on platform '%s', ignored",
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sys.platform)
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def initialize_connection(host, port):
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sock = socket.create_connection((host, port), 5.0)
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sock.settimeout(None)
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set_keepalive(sock, 3, 2, 3)
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logger.debug("connected to host %s on port %d", host, port)
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return sock
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class CommKernelDummy:
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def __init__(self):
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pass
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def switch_clock(self, external):
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pass
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def load(self, kernel_library):
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pass
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def run(self):
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pass
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def serve(self, embedding_map, symbolizer, demangler):
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pass
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def check_system_info(self):
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pass
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def get_log(self):
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return ""
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def clear_log(self):
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pass
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class CommKernel:
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warned_of_mismatch = False
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def __init__(self, host, port=1381):
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self._read_type = None
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self.host = host
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self.port = port
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def open(self):
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if hasattr(self, "socket"):
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return
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self.socket = initialize_connection(self.host, self.port)
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self.socket.sendall(b"ARTIQ coredev\n")
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def close(self):
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if not hasattr(self, "socket"):
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return
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self.socket.close()
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del self.socket
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logger.debug("disconnected")
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def read(self, length):
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r = bytes()
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while len(r) < length:
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rn = self.socket.recv(min(8192, length - len(r)))
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if not rn:
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raise ConnectionResetError("Connection closed")
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r += rn
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return r
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def write(self, data):
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self.socket.sendall(data)
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#
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# Reader interface
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#
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def _read_header(self):
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self.open()
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# Wait for a synchronization sequence, 5a 5a 5a 5a.
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sync_count = 0
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while sync_count < 4:
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(sync_byte, ) = struct.unpack("B", self.read(1))
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if sync_byte == 0x5a:
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sync_count += 1
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else:
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sync_count = 0
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# Read message header.
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(raw_type, ) = struct.unpack("B", self.read(1))
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self._read_type = _D2HMsgType(raw_type)
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logger.debug("receiving message: type=%r",
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self._read_type)
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def _read_expect(self, ty):
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if self._read_type != ty:
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raise IOError("Incorrect reply from device: {} (expected {})".
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format(self._read_type, ty))
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def _read_empty(self, ty):
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self._read_header()
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self._read_expect(ty)
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def _read_chunk(self, length):
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return self.read(length)
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def _read_int8(self):
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(value, ) = struct.unpack("B", self._read_chunk(1))
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return value
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def _read_int32(self):
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(value, ) = struct.unpack(">l", self._read_chunk(4))
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return value
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def _read_int64(self):
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(value, ) = struct.unpack(">q", self._read_chunk(8))
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return value
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def _read_float64(self):
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(value, ) = struct.unpack(">d", self._read_chunk(8))
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return value
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def _read_bool(self):
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return True if self._read_int8() else False
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def _read_bytes(self):
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return self._read_chunk(self._read_int32())
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def _read_string(self):
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return self._read_bytes().decode("utf-8")
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#
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# Writer interface
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#
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def _write_header(self, ty):
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self.open()
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logger.debug("sending message: type=%r", ty)
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# Write synchronization sequence and header.
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self.write(struct.pack(">lB", 0x5a5a5a5a, ty.value))
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def _write_empty(self, ty):
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self._write_header(ty)
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def _write_chunk(self, chunk):
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self.write(chunk)
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def _write_int8(self, value):
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self.write(struct.pack("B", value))
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def _write_int32(self, value):
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self.write(struct.pack(">l", value))
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def _write_int64(self, value):
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self.write(struct.pack(">q", value))
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def _write_float64(self, value):
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self.write(struct.pack(">d", value))
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def _write_bool(self, value):
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self.write(struct.pack("B", value))
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def _write_bytes(self, value):
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self._write_int32(len(value))
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self.write(value)
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def _write_string(self, value):
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self._write_bytes(value.encode("utf-8"))
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#
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# Exported APIs
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#
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def reset_session(self):
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self.write(struct.pack(">ll", 0x5a5a5a5a, 0))
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def check_system_info(self):
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self._write_empty(_H2DMsgType.SYSTEM_INFO_REQUEST)
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self._read_header()
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self._read_expect(_D2HMsgType.SYSTEM_INFO_REPLY)
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runtime_id = self._read_chunk(4)
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if runtime_id != b"AROR":
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raise UnsupportedDevice("Unsupported runtime ID: {}"
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.format(runtime_id))
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gateware_version = self._read_string()
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if gateware_version != software_version and not self.warned_of_mismatch:
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logger.warning("Mismatch between gateware (%s) "
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"and software (%s) versions",
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gateware_version, software_version)
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CommKernel.warned_of_mismatch = True
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finished_cleanly = self._read_bool()
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if not finished_cleanly:
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logger.warning("Previous kernel did not cleanly finish")
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def switch_clock(self, external):
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self._write_header(_H2DMsgType.SWITCH_CLOCK)
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self._write_int8(external)
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self._read_empty(_D2HMsgType.CLOCK_SWITCH_COMPLETED)
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def flash_storage_read(self, key):
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self._write_header(_H2DMsgType.FLASH_READ_REQUEST)
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self._write_string(key)
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self._read_header()
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self._read_expect(_D2HMsgType.FLASH_READ_REPLY)
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return self._read_string()
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def flash_storage_write(self, key, value):
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self._write_header(_H2DMsgType.FLASH_WRITE_REQUEST)
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self._write_string(key)
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self._write_bytes(value)
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self._read_header()
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if self._read_type == _D2HMsgType.FLASH_ERROR_REPLY:
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raise IOError("Flash storage is full")
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else:
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self._read_expect(_D2HMsgType.FLASH_OK_REPLY)
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def flash_storage_erase(self):
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self._write_empty(_H2DMsgType.FLASH_ERASE_REQUEST)
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self._read_empty(_D2HMsgType.FLASH_OK_REPLY)
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def flash_storage_remove(self, key):
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self._write_header(_H2DMsgType.FLASH_REMOVE_REQUEST)
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self._write_string(key)
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self._read_empty(_D2HMsgType.FLASH_OK_REPLY)
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def load(self, kernel_library):
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self._write_header(_H2DMsgType.LOAD_KERNEL)
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self._write_bytes(kernel_library)
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self._read_header()
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if self._read_type == _D2HMsgType.LOAD_FAILED:
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raise LoadError(self._read_string())
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else:
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self._read_expect(_D2HMsgType.LOAD_COMPLETED)
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def run(self):
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self._write_empty(_H2DMsgType.RUN_KERNEL)
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logger.debug("running kernel")
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_rpc_sentinel = object()
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# See session.c:{send,receive}_rpc_value and llvm_ir_generator.py:_rpc_tag.
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def _receive_rpc_value(self, embedding_map):
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tag = chr(self._read_int8())
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if tag == "\x00":
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return self._rpc_sentinel
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elif tag == "t":
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length = self._read_int8()
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return tuple(self._receive_rpc_value(embedding_map) for _ in range(length))
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elif tag == "n":
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return None
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elif tag == "b":
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return bool(self._read_int8())
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elif tag == "i":
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return numpy.int32(self._read_int32())
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elif tag == "I":
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return numpy.int64(self._read_int64())
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elif tag == "f":
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return self._read_float64()
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elif tag == "F":
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numerator = self._read_int64()
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denominator = self._read_int64()
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return Fraction(numerator, denominator)
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elif tag == "s":
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return self._read_string()
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elif tag == "B":
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return self._read_bytes()
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elif tag == "A":
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return self._read_bytes()
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elif tag == "l":
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length = self._read_int32()
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return [self._receive_rpc_value(embedding_map) for _ in range(length)]
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elif tag == "a":
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length = self._read_int32()
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return numpy.array([self._receive_rpc_value(embedding_map) for _ in range(length)])
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elif tag == "r":
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start = self._receive_rpc_value(embedding_map)
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stop = self._receive_rpc_value(embedding_map)
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step = self._receive_rpc_value(embedding_map)
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return range(start, stop, step)
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elif tag == "k":
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name = self._read_string()
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value = self._receive_rpc_value(embedding_map)
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return RPCKeyword(name, value)
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elif tag == "O":
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return embedding_map.retrieve_object(self._read_int32())
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else:
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raise IOError("Unknown RPC value tag: {}".format(repr(tag)))
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def _receive_rpc_args(self, embedding_map):
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args, kwargs = [], {}
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while True:
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value = self._receive_rpc_value(embedding_map)
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if value is self._rpc_sentinel:
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return args, kwargs
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elif isinstance(value, RPCKeyword):
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kwargs[value.name] = value.value
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else:
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args.append(value)
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def _skip_rpc_value(self, tags):
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tag = tags.pop(0)
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if tag == "t":
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length = tags.pop(0)
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for _ in range(length):
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self._skip_rpc_value(tags)
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elif tag == "l":
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self._skip_rpc_value(tags)
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elif tag == "r":
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self._skip_rpc_value(tags)
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else:
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pass
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def _send_rpc_value(self, tags, value, root, function):
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def check(cond, expected):
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if not cond:
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raise RPCReturnValueError(
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"type mismatch: cannot serialize {value} as {type}"
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" ({function} has returned {root})".format(
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value=repr(value), type=expected(),
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function=function, root=root))
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tag = chr(tags.pop(0))
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if tag == "t":
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length = tags.pop(0)
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check(isinstance(value, tuple) and length == len(value),
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lambda: "tuple of {}".format(length))
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for elt in value:
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self._send_rpc_value(tags, elt, root, function)
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elif tag == "n":
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check(value is None,
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lambda: "None")
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elif tag == "b":
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check(isinstance(value, bool),
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lambda: "bool")
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self._write_int8(value)
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elif tag == "i":
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check(isinstance(value, (int, numpy.int32)) and
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(-2**31 < value < 2**31-1),
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lambda: "32-bit int")
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self._write_int32(value)
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elif tag == "I":
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check(isinstance(value, (int, numpy.int32, numpy.int64)) and
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(-2**63 < value < 2**63-1),
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lambda: "64-bit int")
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self._write_int64(value)
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elif tag == "f":
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check(isinstance(value, float),
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lambda: "float")
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self._write_float64(value)
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elif tag == "F":
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check(isinstance(value, Fraction) and
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(-2**63 < value.numerator < 2**63-1) and
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(-2**63 < value.denominator < 2**63-1),
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lambda: "64-bit Fraction")
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self._write_int64(value.numerator)
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self._write_int64(value.denominator)
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elif tag == "s":
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check(isinstance(value, str) and "\x00" not in value,
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lambda: "str")
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self._write_string(value)
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elif tag == "B":
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check(isinstance(value, bytes),
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lambda: "bytes")
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self._write_bytes(value)
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elif tag == "A":
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check(isinstance(value, bytearray),
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lambda: "bytearray")
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self._write_bytes(value)
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elif tag == "l":
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check(isinstance(value, list),
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lambda: "list")
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self._write_int32(len(value))
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for elt in value:
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tags_copy = bytearray(tags)
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self._send_rpc_value(tags_copy, elt, root, function)
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self._skip_rpc_value(tags)
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elif tag == "r":
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check(isinstance(value, range),
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lambda: "range")
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tags_copy = bytearray(tags)
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self._send_rpc_value(tags_copy, value.start, root, function)
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tags_copy = bytearray(tags)
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self._send_rpc_value(tags_copy, value.stop, root, function)
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tags_copy = bytearray(tags)
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self._send_rpc_value(tags_copy, value.step, root, function)
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tags = tags_copy
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else:
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raise IOError("Unknown RPC value tag: {}".format(repr(tag)))
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def _truncate_message(self, msg, limit=4096):
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if len(msg) > limit:
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return msg[0:limit] + "... (truncated)"
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else:
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return msg
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def _serve_rpc(self, embedding_map):
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async = self._read_bool()
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service_id = self._read_int32()
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args, kwargs = self._receive_rpc_args(embedding_map)
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return_tags = self._read_bytes()
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if service_id is 0:
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service = lambda obj, attr, value: setattr(obj, attr, value)
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else:
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service = embedding_map.retrieve_object(service_id)
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logger.debug("rpc service: [%d]%r%s %r %r -> %s", service_id, service,
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(" (async)" if async else ""), args, kwargs, return_tags)
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if async:
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service(*args, **kwargs)
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return
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try:
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result = service(*args, **kwargs)
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logger.debug("rpc service: %d %r %r = %r", service_id, args, kwargs, result)
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self._write_header(_H2DMsgType.RPC_REPLY)
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self._write_bytes(return_tags)
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self._send_rpc_value(bytearray(return_tags), result, result, service)
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except RPCReturnValueError as exn:
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raise
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except Exception as exn:
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logger.debug("rpc service: %d %r %r ! %r", service_id, args, kwargs, exn)
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self._write_header(_H2DMsgType.RPC_EXCEPTION)
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if hasattr(exn, "artiq_core_exception"):
|
|
exn = exn.artiq_core_exception
|
|
self._write_string(exn.name)
|
|
self._write_string(self._truncate_message(exn.message))
|
|
for index in range(3):
|
|
self._write_int64(exn.param[index])
|
|
|
|
filename, line, column, function = exn.traceback[-1]
|
|
self._write_string(filename)
|
|
self._write_int32(line)
|
|
self._write_int32(column)
|
|
self._write_string(function)
|
|
else:
|
|
exn_type = type(exn)
|
|
if exn_type in (ZeroDivisionError, ValueError, IndexError) or \
|
|
hasattr(exn, "artiq_builtin"):
|
|
self._write_string("0:{}".format(exn_type.__name__))
|
|
else:
|
|
exn_id = embedding_map.store_object(exn_type)
|
|
self._write_string("{}:{}.{}".format(exn_id,
|
|
exn_type.__module__,
|
|
exn_type.__qualname__))
|
|
self._write_string(self._truncate_message(str(exn)))
|
|
for index in range(3):
|
|
self._write_int64(0)
|
|
|
|
tb = traceback.extract_tb(exn.__traceback__, 2)
|
|
if len(tb) == 2:
|
|
(_, (filename, line, function, _), ) = tb
|
|
elif len(tb) == 1:
|
|
((filename, line, function, _), ) = tb
|
|
else:
|
|
assert False
|
|
self._write_string(filename)
|
|
self._write_int32(line)
|
|
self._write_int32(-1) # column not known
|
|
self._write_string(function)
|
|
|
|
def _serve_exception(self, embedding_map, symbolizer, demangler):
|
|
name = self._read_string()
|
|
message = self._read_string()
|
|
params = [self._read_int64() for _ in range(3)]
|
|
|
|
filename = self._read_string()
|
|
line = self._read_int32()
|
|
column = self._read_int32()
|
|
function = self._read_string()
|
|
|
|
backtrace = [self._read_int32() for _ in range(self._read_int32())]
|
|
|
|
traceback = list(reversed(symbolizer(backtrace))) + \
|
|
[(filename, line, column, *demangler([function]), None)]
|
|
core_exn = exceptions.CoreException(name, message, params, traceback)
|
|
|
|
if core_exn.id == 0:
|
|
python_exn_type = getattr(exceptions, core_exn.name.split('.')[-1])
|
|
else:
|
|
python_exn_type = embedding_map.retrieve_object(core_exn.id)
|
|
|
|
python_exn = python_exn_type(message.format(*params))
|
|
python_exn.artiq_core_exception = core_exn
|
|
raise python_exn
|
|
|
|
def serve(self, embedding_map, symbolizer, demangler):
|
|
while True:
|
|
self._read_header()
|
|
if self._read_type == _D2HMsgType.RPC_REQUEST:
|
|
self._serve_rpc(embedding_map)
|
|
elif self._read_type == _D2HMsgType.KERNEL_EXCEPTION:
|
|
self._serve_exception(embedding_map, symbolizer, demangler)
|
|
elif self._read_type == _D2HMsgType.WATCHDOG_EXPIRED:
|
|
raise exceptions.WatchdogExpired
|
|
elif self._read_type == _D2HMsgType.CLOCK_FAILURE:
|
|
raise exceptions.ClockFailure
|
|
else:
|
|
self._read_expect(_D2HMsgType.KERNEL_FINISHED)
|
|
return
|