From a0e44530509d3b342b8011ac4467d957350f5ffa Mon Sep 17 00:00:00 2001
From: Luke Shumaker <lukeshu@lukeshu.com>
Date: Wed, 15 Feb 2023 15:05:23 -0700
Subject: Avoid io.Writer causing buffers to escape to the heap

---
 internal/fastio/noescape/noescape.go | 30 ++++++++++++++++++++++++++++++
 1 file changed, 30 insertions(+)
 create mode 100644 internal/fastio/noescape/noescape.go

(limited to 'internal/fastio/noescape/noescape.go')

diff --git a/internal/fastio/noescape/noescape.go b/internal/fastio/noescape/noescape.go
new file mode 100644
index 0000000..02d25b5
--- /dev/null
+++ b/internal/fastio/noescape/noescape.go
@@ -0,0 +1,30 @@
+// Copyright (C) 2023  Luke Shumaker <lukeshu@lukeshu.com>
+//
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+package noescape
+
+import (
+	"io"
+	_ "unsafe"
+)
+
+//go:noescape
+//go:linkname Write io.Writer.Write
+func Write(w io.Writer, dat []byte) (int, error)
+
+//go:noescape
+//go:linkname WriteString io.StringWriter.WriteString
+func WriteString(w io.Writer, dat string) (int, error)
+
+//go:noescape
+//go:linkname WriteAt io.WriterAt.WriteAt
+func WriteAt(w io.WriterAt, dat []byte, off int64) (int, error)
+
+//go:noescape
+//go:linkname Read io.Reader.Read
+func Read(w io.Reader, dat []byte) (int, error)
+
+//go:noescape
+//go:linkname ReadAt io.ReaderAt.ReadAt
+func ReadAt(w io.WriterAt, dat []byte, off int64) (int, error)
-- 
cgit v1.2.3-2-g168b