Update

vendor/github.com/dblohm7/wingoes/com/stream_386.go

@@ -0,0 +1,130 @@
+// Copyright (c) 2023 Tailscale Inc & AUTHORS. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+//go:build windows
+
+package com
+
+import (
+	"math"
+	"syscall"
+	"unsafe"
+
+	"github.com/dblohm7/wingoes"
+)
+
+const maxStreamRWLen = math.MaxInt32
+
+func (abi *IStreamABI) Seek(offset int64, whence int) (n int64, _ error) {
+	var hr wingoes.HRESULT
+	method := unsafe.Slice(abi.Vtbl, 14)[5]
+
+	words := (*[2]uintptr)(unsafe.Pointer(&offset))
+	rc, _, _ := syscall.SyscallN(
+		method,
+		uintptr(unsafe.Pointer(abi)),
+		words[0],
+		words[1],
+		uintptr(uint32(whence)),
+		uintptr(unsafe.Pointer(&n)),
+	)
+	hr = wingoes.HRESULT(rc)
+
+	if e := wingoes.ErrorFromHRESULT(hr); e.Failed() {
+		return 0, e
+	}
+
+	return n, nil
+}
+
+func (abi *IStreamABI) SetSize(newSize uint64) error {
+	var hr wingoes.HRESULT
+	method := unsafe.Slice(abi.Vtbl, 14)[6]
+
+	words := (*[2]uintptr)(unsafe.Pointer(&newSize))
+	rc, _, _ := syscall.SyscallN(
+		method,
+		uintptr(unsafe.Pointer(abi)),
+		words[0],
+		words[1],
+	)
+	hr = wingoes.HRESULT(rc)
+
+	if e := wingoes.ErrorFromHRESULT(hr); e.Failed() {
+		return e
+	}
+
+	return nil
+}
+
+func (abi *IStreamABI) CopyTo(dest *IStreamABI, numBytesToCopy uint64) (bytesRead, bytesWritten uint64, _ error) {
+	var hr wingoes.HRESULT
+	method := unsafe.Slice(abi.Vtbl, 14)[7]
+
+	words := (*[2]uintptr)(unsafe.Pointer(&numBytesToCopy))
+	rc, _, _ := syscall.SyscallN(
+		method,
+		uintptr(unsafe.Pointer(abi)),
+		uintptr(unsafe.Pointer(dest)),
+		words[0],
+		words[1],
+		uintptr(unsafe.Pointer(&bytesRead)),
+		uintptr(unsafe.Pointer(&bytesWritten)),
+	)
+	hr = wingoes.HRESULT(rc)
+
+	if e := wingoes.ErrorFromHRESULT(hr); e.Failed() {
+		return bytesRead, bytesWritten, e
+	}
+
+	return bytesRead, bytesWritten, nil
+}
+
+func (abi *IStreamABI) LockRegion(offset, numBytes uint64, lockType LOCKTYPE) error {
+	var hr wingoes.HRESULT
+	method := unsafe.Slice(abi.Vtbl, 14)[10]
+
+	oWords := (*[2]uintptr)(unsafe.Pointer(&offset))
+	nWords := (*[2]uintptr)(unsafe.Pointer(&numBytes))
+	rc, _, _ := syscall.SyscallN(
+		method,
+		uintptr(unsafe.Pointer(abi)),
+		oWords[0],
+		oWords[1],
+		nWords[0],
+		nWords[1],
+		uintptr(lockType),
+	)
+	hr = wingoes.HRESULT(rc)
+
+	if e := wingoes.ErrorFromHRESULT(hr); e.Failed() {
+		return e
+	}
+
+	return nil
+}
+
+func (abi *IStreamABI) UnlockRegion(offset, numBytes uint64, lockType LOCKTYPE) error {
+	var hr wingoes.HRESULT
+	method := unsafe.Slice(abi.Vtbl, 14)[11]
+
+	oWords := (*[2]uintptr)(unsafe.Pointer(&offset))
+	nWords := (*[2]uintptr)(unsafe.Pointer(&numBytes))
+	rc, _, _ := syscall.SyscallN(
+		method,
+		uintptr(unsafe.Pointer(abi)),
+		oWords[0],
+		oWords[1],
+		nWords[0],
+		nWords[1],
+		uintptr(lockType),
+	)
+	hr = wingoes.HRESULT(rc)
+
+	if e := wingoes.ErrorFromHRESULT(hr); e.Failed() {
+		return e
+	}
+
+	return nil
+}