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29 lines
1.0 KiB
Markdown
29 lines
1.0 KiB
Markdown
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---
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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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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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...: 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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