[#llvm-timeTraceAsyncProfilerBegin]
= xref:llvm.adoc[llvm]::timeTraceAsyncProfilerBegin
:relfileprefix: ../
:mrdocs:

Manually begin an asynchronous time section with the given name and detail.

== Synopsis

Declared in `<llvm/Support/TimeProfiler.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
xref:llvm/TimeTraceProfilerEntry.adoc[TimeTraceProfilerEntry]*
timeTraceAsyncProfilerBegin(
    xref:llvm/StringRef.adoc[StringRef] Name,
    xref:llvm/StringRef.adoc[StringRef] Detail);
----

== Description

This starts Async Events having `Name` as a category which is shown separately from other traces. See https://docs.google.com/document/d/1CvAClvFfyA5R‐PhYUmn5OOQtYMH4h6I0nSsKchNAySU/preview#heading=h.jh64i9l3vwa1 for more details.

== Return Value

Profiler entry for the begun async section, or nullptr if tracing is off.

== Parameters

[cols="1,4"]
|===
| Name| Description
| *Name*
| Event name used as the async category.
| *Detail*
| Extra description copied into the event.
|===


[.small]#Created with https://www.mrdocs.com[MrDocs]#