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References are now written using normal links: You now use [`print`] or
[print a string][`print`]) instead of @{print} or @{print|print a
string}.
35 lines
1.2 KiB
Markdown
35 lines
1.2 KiB
Markdown
---
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module: [kind=event] task_complete
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see: commands.execAsync To run a command which fires a task_complete event.
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---
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<!--
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SPDX-FileCopyrightText: 2021 The CC: Tweaked Developers
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SPDX-License-Identifier: MPL-2.0
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-->
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The [`task_complete`] event is fired when an asynchronous task completes. This is usually handled inside the function call that queued the task; however, functions such as [`commands.execAsync`] return immediately so the user can wait for completion.
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## Return Values
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1. [`string`]: The event name.
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2. [`number`]: The ID of the task that completed.
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3. [`boolean`]: Whether the command succeeded.
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4. [`string`]: If the command failed, an error message explaining the failure. (This is not present if the command succeeded.)
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5. <abbr title="Variable number of arguments">…</abbr>: Any parameters returned from the command.
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## Example
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Prints the results of an asynchronous command:
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```lua
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local taskID = commands.execAsync("say Hello")
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local event
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repeat
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event = {os.pullEvent("task_complete")}
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until event[2] == taskID
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if event[3] == true then
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print("Task " .. event[2] .. " succeeded:", table.unpack(event, 4))
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else
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print("Task " .. event[2] .. " failed: " .. event[4])
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end
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```
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