Disable unsafe buffer in windows by default

common/buf/buffer.go

@@ -51,7 +51,7 @@ func NewSize(size int) *Buffer {
 }
 
 func StackNew() *Buffer {
-	if common.Unsafe {
+	if common.UnsafeBuffer {
 		return &Buffer{
 			data:  make([]byte, BufferSize),
 			start: ReversedHeader,
@@ -63,7 +63,7 @@ func StackNew() *Buffer {
 }
 
 func StackNewPacket() *Buffer {
-	if common.Unsafe {
+	if common.UnsafeBuffer {
 		return &Buffer{
 			data:  make([]byte, UDPBufferSize),
 			start: ReversedHeader,
@@ -75,7 +75,7 @@ func StackNewPacket() *Buffer {
 }
 
 func StackNewSize(size int) *Buffer {
-	if common.Unsafe {
+	if common.UnsafeBuffer {
 		return &Buffer{
 			data: Make(size),
 		}

common/cond.go

@@ -73,16 +73,15 @@ func Find[T any](arr []T, block func(it T) bool) T {
 //go:norace
 func Dup[T any](obj T) T {
 	//goland:noinspection GoVetUnsafePointer
-	if Unsafe {
-		p := uintptr(unsafe.Pointer(&obj))
-		return *(*T)(unsafe.Pointer(p))
+	if UnsafeBuffer {
+		return *(*T)(unsafe.Pointer(uintptr(unsafe.Pointer(&obj)) ^ 0))
 	} else {
 		return obj
 	}
 }
 
 func KeepAlive(obj any) {
-	if Unsafe {
+	if UnsafeBuffer {
 		runtime.KeepAlive(obj)
 	}
 }

common/safe.go

@@ -1,5 +0,0 @@
-//go:build disable_unsafe
-
-package common
-
-const Unsafe = false

common/unsafe.go

@@ -1,5 +1,5 @@
-//go:build !disable_unsafe
+//go:build unsafe_buffer && !disable_unsafe_buffer
 
 package common
 
-const Unsafe = true
+const UnsafeBuffer = true

common/unsafe_default.go

@@ -0,0 +1,10 @@
+//go:build !unsafe_buffer && !disable_unsafe_buffer
+
+package common
+
+import "runtime"
+
+// net/*Conn in windows keeps the buffer pointer passed in during io operations, so we disable it by default.
+// https://github.com/golang/go/blob/4068be56ce7721a3d75606ea986d11e9ca27077a/src/internal/poll/fd_windows.go#L876
+
+const UnsafeBuffer = runtime.GOOS != "windows"

common/unsafe_disable.go

@@ -0,0 +1,5 @@
+//go:build disable_unsafe_buffer
+
+package common
+
+const UnsafeBuffer = false