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# Copyright (C) 2014 Linaro Limited
#
# Author: Senthil Kumaran S <senthil.kumaran@linaro.org>
# Remi Duraffort <remi.duraffort@linaro.org>
#
# This file is part of LAVA Dispatcher.
#
# LAVA Dispatcher is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# LAVA Dispatcher is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along
# with this program; if not, see <http://www.gnu.org/licenses>.
from typing import Dict, List, Tuple
import contextlib
import datetime
import logging
import multiprocessing
import requests
import signal
import time
from lava_common.compat import yaml_dump
from lava_common.version import __version__
def dump(data: Dict) -> str:
# Set width to a really large value in order to always get one line.
# But keep this reasonable because the logs will be loaded by CLoader
# that is limited to around 10**7 chars
data_str = yaml_dump(
data, default_flow_style=True, default_style='"', width=10 ** 6
)[:-1]
# Test the limit and skip if the line is too long
if len(data_str) >= 10 ** 6:
if isinstance(data["msg"], str):
data["msg"] = "<line way too long ...>"
else:
data["msg"] = {"skip": "line way too long ..."}
data_str = yaml_dump(
data, default_flow_style=True, default_style='"', width=10 ** 6
)[:-1]
return data_str
def sender(conn, url: str, token: str) -> None:
HEADERS = {"User-Agent": f"lava {__version__}", "LAVA-Token": token}
MAX_RECORDS = 1000
MAX_TIME = 1
def post(session, records: List[str], index: int) -> Tuple[List[str], int]:
# limit the number of records to send in one call
data, remaining = records[:MAX_RECORDS], records[MAX_RECORDS:]
with contextlib.suppress(requests.RequestException):
# Do not specify a timeout so we wait forever for an answer. This is a
# background process so waiting is not an issue.
# Will avoid resending the same request a second time if gunicorn
# is too slow to answer.
ret = session.post(
url,
data={"lines": "- " + "\n- ".join(data), "index": index},
headers=HEADERS,
)
if ret.status_code == 200:
with contextlib.suppress(KeyError, ValueError):
count = int(ret.json()["line_count"])
data = data[count:]
index += count
return (data + remaining, index)
last_call = time.time()
records: List[str] = []
leaving: bool = False
index: int = 0
with requests.Session() as session:
while not leaving:
# Listen for new messages if we don't have message yet or some
# messages are already in the socket.
if len(records) == 0 or conn.poll(MAX_TIME):
data = conn.recv_bytes()
if data == b"":
leaving = True
else:
records.append(data.decode("utf-8"))
records_limit = len(records) >= MAX_RECORDS
time_limit = (time.time() - last_call) >= MAX_TIME
if records and (records_limit or time_limit):
last_call = time.time()
# Send the data
(records, index) = post(session, records, index)
while records:
# Send the data
(records, index) = post(session, records, index)
class HTTPHandler(logging.Handler):
def __init__(self, url, token):
super().__init__()
self.formatter = logging.Formatter("%(message)s")
# Create the multiprocess sender
(reader, writter) = multiprocessing.Pipe(duplex=False)
self.writter = writter
# Block sigint so the sender function will not receive it.
# TODO: block more signals?
signal.pthread_sigmask(signal.SIG_BLOCK, [signal.SIGINT])
self.proc = multiprocessing.Process(target=sender, args=(reader, url, token))
self.proc.start()
signal.pthread_sigmask(signal.SIG_UNBLOCK, [signal.SIGINT])
def emit(self, record):
data = self.formatter.format(record)
# Skip empty strings
# This can't happen as data is a dictionary dumped in yaml format
if data == "":
return
self.writter.send_bytes(data.encode("utf-8"))
def close(self):
super().close()
# wait for the multiprocess
self.writter.send_bytes(b"")
self.proc.join()
class YAMLLogger(logging.Logger):
def __init__(self, name):
super().__init__(name)
self.handler = None
self.markers = {}
self.line = 0
def addHTTPHandler(self, url, token):
self.handler = HTTPHandler(url, token)
self.addHandler(self.handler)
return self.handler
def close(self):
if self.handler is not None:
self.handler.close()
self.removeHandler(self.handler)
self.handler = None
def log_message(self, level, level_name, message, *args, **kwargs):
# Increment the line count
self.line += 1
# Build the dictionary
data = {"dt": datetime.datetime.utcnow().isoformat(), "lvl": level_name}
if isinstance(message, str) and args:
data["msg"] = message % args
else:
data["msg"] = message
data_str = dump(data)
self._log(level, data_str, ())
def exception(self, exc, *args, **kwargs):
self.log_message(logging.ERROR, "exception", exc, *args, **kwargs)
def error(self, message, *args, **kwargs):
self.log_message(logging.ERROR, "error", message, *args, **kwargs)
def warning(self, message, *args, **kwargs):
self.log_message(logging.WARNING, "warning", message, *args, **kwargs)
def info(self, message, *args, **kwargs):
self.log_message(logging.INFO, "info", message, *args, **kwargs)
def debug(self, message, *args, **kwargs):
self.log_message(logging.DEBUG, "debug", message, *args, **kwargs)
def input(self, message, *args, **kwargs):
self.log_message(logging.INFO, "input", message, *args, **kwargs)
def target(self, message, *args, **kwargs):
self.log_message(logging.INFO, "target", message, *args, **kwargs)
def feedback(self, message, *args, **kwargs):
self.log_message(logging.INFO, "feedback", message, *args, **kwargs)
def event(self, message, *args, **kwargs):
self.log_message(logging.INFO, "event", message, *args, **kwargs)
def marker(self, message, *args, **kwargs):
case = message["case"]
m_type = message["type"]
self.markers.setdefault(case, {})[m_type] = self.line - 1
def results(self, results, *args, **kwargs):
if "extra" in results and "level" not in results:
raise Exception("'level' is mandatory when 'extra' is used")
# Extract and append test case markers
case = results["case"]
markers = self.markers.get(case)
if markers is not None:
test_case = markers.get("test_case")
results["starttc"] = markers.get("start_test_case", test_case)
results["endtc"] = markers.get("end_test_case", test_case)
del self.markers[case]
self.log_message(logging.INFO, "results", results, *args, **kwargs)
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