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CC-Tweaked/doc/events/alarm.md
Jonathan Coates 8a203e7454
Re-license several more files under MPL-2.0
- Several files where @MCJack123 is the exclusive contributor. He has
   signed over all contributions to "any OSI-approved license". Thank
   you!

 - Various the file handle classes: Looking at these again, I don't
   think they contain any of the original code.
2023-03-28 10:28:59 +01:00

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---
module: [kind=event] alarm
see: os.setAlarm To start an alarm.
---
<!--
SPDX-FileCopyrightText: 2021 The CC: Tweaked Developers
SPDX-License-Identifier: MPL-2.0
-->
The @{alarm} event is fired when an alarm started with @{os.setAlarm} completes.
## Return Values
1. @{string}: The event name.
2. @{number}: The ID of the alarm that finished.
## Example
Starts a timer and then waits for it to complete.
```lua
local alarm_id = os.setAlarm(os.time() + 0.05)
local event, id
repeat
event, id = os.pullEvent("alarm")
until id == alarm_id
print("Alarm with ID " .. id .. " was fired")
```