mirror of https://git.kore.io/kore.git
40 lines
1.3 KiB
Python
40 lines
1.3 KiB
Python
#
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# Copyright (c) 2018 Joris Vink <joris@coders.se>
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#
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# Permission to use, copy, modify, and distribute this software for any
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# purpose with or without fee is hereby granted, provided that the above
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# copyright notice and this permission notice appear in all copies.
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#
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# THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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# OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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#
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#
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# Locking example.
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#
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# The handler for /lock will grab the shared lock, suspend itself for
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# 5 seconds before releasing the lock and responding.
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#
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# While the lock is held, other requests to /lock will block until it
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# is released.
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import kore
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# The shared lock
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lock = kore.lock()
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@kore.route("/lock", methods=["get"])
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async def async_lock(req):
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# A kore.lock should be used with the "async with" syntax.
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async with lock:
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# Suspend for 5 seconds.
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await kore.suspend(5000)
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# Now respond.
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req.response(200, b'')
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