79 lines
2.6 KiB
Python
79 lines
2.6 KiB
Python
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# Pyrogram - Telegram MTProto API Client Library for Python
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# Copyright (C) 2017-2020 Dan <https://github.com/delivrance>
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#
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# This file is part of Pyrogram.
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#
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# Pyrogram is free software: you can redistribute it and/or modify
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# it under the terms of the GNU Lesser General Public License as published
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# by the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# Pyrogram is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU Lesser General Public License for more details.
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#
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# You should have received a copy of the GNU Lesser General Public License
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# along with Pyrogram. If not, see <http://www.gnu.org/licenses/>.
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import asyncio
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import logging
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import signal
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log = logging.getLogger(__name__)
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loop = asyncio.get_event_loop()
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event = asyncio.Event()
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async def idle():
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"""Block the main script execution until a signal is received.
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This function will run indefinitely in order to block the main script execution and prevent it from
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exiting while having client(s) that are still running in the background.
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It is useful for event-driven application only, that are, applications which react upon incoming Telegram
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updates through handlers, rather than executing a set of methods sequentially.
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The way Pyrogram works, it will keep your handlers in a pool of worker threads, which are executed concurrently
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outside the main thread; calling idle() will ensure the client(s) will be kept alive by not letting the main
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script to end, until you decide to quit.
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Once a signal is received (e.g.: from CTRL+C) the function will terminate and your main script will continue.
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Don't forget to call :meth:`~pyrogram.Client.stop` for each running client before the script ends.
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Example:
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.. code-block:: python
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:emphasize-lines: 13
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from pyrogram import Client, idle
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app1 = Client("account1")
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app2 = Client("account2")
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app3 = Client("account3")
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... # Set handlers up
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app1.start()
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app2.start()
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app3.start()
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idle()
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app1.stop()
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app2.stop()
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app3.stop()
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"""
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def handler():
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log.info("Stop signal received")
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event.set()
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asyncio.get_event_loop().add_signal_handler(signal.SIGINT, handler)
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log.info("Idle started")
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await event.wait()
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log.info("Idle stopped")
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event.clear()
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