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# Copyright (C) 2019 Garmin Ltd.
#
# SPDX-License-Identifier: GPL-2.0-only
#
import asyncio
import json
import logging
import socket
import os
import bb.asyncrpc
from . import create_async_client
logger = logging.getLogger("hashserv.client")
class AsyncClient(bb.asyncrpc.AsyncClient):
MODE_NORMAL = 0
MODE_GET_STREAM = 1
def __init__(self):
super().__init__('OEHASHEQUIV', '1.1', logger)
self.mode = self.MODE_NORMAL
async def setup_connection(self):
await super().setup_connection()
cur_mode = self.mode
self.mode = self.MODE_NORMAL
await self._set_mode(cur_mode)
async def send_stream(self, msg):
async def proc():
self.writer.write(("%s\n" % msg).encode("utf-8"))
await self.writer.drain()
l = await self.reader.readline()
if not l:
raise ConnectionError("Connection closed")
return l.decode("utf-8").rstrip()
return await self._send_wrapper(proc)
async def _set_mode(self, new_mode):
if new_mode == self.MODE_NORMAL and self.mode == self.MODE_GET_STREAM:
r = await self.send_stream("END")
if r != "ok":
raise ConnectionError("Bad response from server %r" % r)
elif new_mode == self.MODE_GET_STREAM and self.mode == self.MODE_NORMAL:
r = await self.send_message({"get-stream": None})
if r != "ok":
raise ConnectionError("Bad response from server %r" % r)
elif new_mode != self.mode:
raise Exception(
"Undefined mode transition %r -> %r" % (self.mode, new_mode)
)
self.mode = new_mode
async def get_unihash(self, method, taskhash):
await self._set_mode(self.MODE_GET_STREAM)
r = await self.send_stream("%s %s" % (method, taskhash))
if not r:
return None
return r
async def report_unihash(self, taskhash, method, outhash, unihash, extra={}):
await self._set_mode(self.MODE_NORMAL)
m = extra.copy()
m["taskhash"] = taskhash
m["method"] = method
m["outhash"] = outhash
m["unihash"] = unihash
return await self.send_message({"report": m})
async def report_unihash_equiv(self, taskhash, method, unihash, extra={}):
await self._set_mode(self.MODE_NORMAL)
m = extra.copy()
m["taskhash"] = taskhash
m["method"] = method
m["unihash"] = unihash
return await self.send_message({"report-equiv": m})
async def get_taskhash(self, method, taskhash, all_properties=False):
await self._set_mode(self.MODE_NORMAL)
return await self.send_message(
{"get": {"taskhash": taskhash, "method": method, "all": all_properties}}
)
async def get_outhash(self, method, outhash, taskhash):
await self._set_mode(self.MODE_NORMAL)
return await self.send_message(
{"get-outhash": {"outhash": outhash, "taskhash": taskhash, "method": method}}
)
async def get_stats(self):
await self._set_mode(self.MODE_NORMAL)
return await self.send_message({"get-stats": None})
async def reset_stats(self):
await self._set_mode(self.MODE_NORMAL)
return await self.send_message({"reset-stats": None})
async def backfill_wait(self):
await self._set_mode(self.MODE_NORMAL)
return (await self.send_message({"backfill-wait": None}))["tasks"]
class Client(bb.asyncrpc.Client):
def __init__(self):
super().__init__()
self._add_methods(
"connect_tcp",
"close",
"get_unihash",
"report_unihash",
"report_unihash_equiv",
"get_taskhash",
"get_stats",
"reset_stats",
"backfill_wait",
)
def _get_async_client(self):
return AsyncClient()
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