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png rendering in a separate thread

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This commit is contained in:
Igor Chubin 2020-05-07 23:37:21 +02:00
parent 18f51475ce
commit 01a321c202
1 changed files with 11 additions and 2 deletions
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13
lib/wttr_srv.py
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@ -9,6 +9,7 @@ import logging
import io import io
import os import os
import time import time
from gevent.threadpool import ThreadPool
from flask import render_template, send_file, make_response from flask import render_template, send_file, make_response
import fmt.png import fmt.png
@ -36,6 +37,8 @@ logging.basicConfig(filename=LOG_FILE, level=logging.INFO, format='%(asctime)s %
LIMITS = Limits(whitelist=[MY_EXTERNAL_IP], limits=QUERY_LIMITS) LIMITS = Limits(whitelist=[MY_EXTERNAL_IP], limits=QUERY_LIMITS)
TASKS = ThreadPool(25)
def show_text_file(name, lang): def show_text_file(name, lang):
""" """
show static file `name` for `lang` show static file `name` for `lang`
@ -212,8 +215,14 @@ def _response(parsed_query, query, fast_mode=False):
output = get_wetter(parsed_query) output = get_wetter(parsed_query)
if parsed_query.get('png_filename'): if parsed_query.get('png_filename'):
output = fmt.png.render_ansi( # originally it was just a usual function call,
output, options=parsed_query) # but it was a blocking call, so it was moved
# to separate threads:
#
# output = fmt.png.render_ansi(
# output, options=parsed_query)
result = TASKS.spawn(fmt.png.render_ansi, output, options=parsed_query)
output = result.get()
else: else:
if query.get('days', '3') != '0' \ if query.get('days', '3') != '0' \
and not query.get('no-follow-line') \ and not query.get('no-follow-line') \