Created
October 6, 2014 22:27
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Send result of backend process to web socket
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| #!/usr/bin/env python | |
| from flask import Flask, render_template | |
| from flask.ext.uwsgi_websocket import WebSocket | |
| app = Flask(__name__) | |
| ws = WebSocket(app) | |
| @app.route('/') | |
| def index(): | |
| return render_template('index.html') | |
| @ws.route('/websocket') | |
| def echo(ws): | |
| backend_fd = start_preparing_file() | |
| timeout = 3 | |
| while True: | |
| uwsgi.wait_fd_read(backend_fd, timeout) | |
| uwsgi.suspend() | |
| ready_fd = uwsgi.ready_fd() | |
| if fd > -1: | |
| # Insert verification that the backend process worked here | |
| ws.send('download_ready') | |
| return | |
| else: | |
| ws.recv_nb() # Keep-alive | |
| if __name__ == '__main__': | |
| app.run(debug=True, threads=16) |
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