From: Michael Anthony Knyszek <mknyszek@google.com>
Date: Tue, 9 May 2023 19:36:13 +0000 (+0000)
Subject: runtime: add traceEnabled function
X-Git-Tag: go1.21rc1~579
X-Git-Url: http://www.git.cypherpunks.su/?a=commitdiff_plain;h=3e9876cd3a5a83be9bb0f5cbc600aadf9b599558;p=gostls13.git

runtime: add traceEnabled function

This change introduces the trivial traceEnabled function to help tighten
up the execution tracer's API in preparation for the execution trace
redesign GOEXPERIMENT.

A follow-up change will refactor the runtime to use it.

Change-Id: I19c8728e30aefe543b4a826d95446affa14897e3
Reviewed-on: https://go-review.googlesource.com/c/go/+/494180
Run-TryBot: Michael Knyszek <mknyszek@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Auto-Submit: Michael Knyszek <mknyszek@google.com>
Reviewed-by: Michael Pratt <mpratt@google.com>
---

diff --git a/src/runtime/trace.go b/src/runtime/trace.go
index 860b53bdbb..64314f62e8 100644
--- a/src/runtime/trace.go
+++ b/src/runtime/trace.go
@@ -206,6 +206,11 @@ func traceBufPtrOf(b *traceBuf) traceBufPtr {
 	return traceBufPtr(unsafe.Pointer(b))
 }
 
+// traceEnabled returns true if the trace is currently enabled.
+func traceEnabled() bool {
+	return trace.enabled
+}
+
 // StartTrace enables tracing for the current process.
 // While tracing, the data will be buffered and available via ReadTrace.
 // StartTrace returns an error if tracing is already enabled.