From a6239f89699069d704287152393fde43a46263e5 Mon Sep 17 00:00:00 2001
From: Xing Zheng <xingzhen@amazon.com>
Date: Thu, 29 Jun 2023 17:14:05 +0000
Subject: [PATCH] Remove windows related functions

---
 .../daemonimages/csidriver/driver/mount.go    |  2 +
 .../csidriver/util/fs/fs_unsupported.go       |  4 +-
 .../csidriver/util/fs/fs_windows.go           | 76 -------------------
 3 files changed, 4 insertions(+), 78 deletions(-)
 delete mode 100644 ecs-agent/daemonimages/csidriver/util/fs/fs_windows.go

diff --git a/ecs-agent/daemonimages/csidriver/driver/mount.go b/ecs-agent/daemonimages/csidriver/driver/mount.go
index 6ee70f81d5..3a78d0592a 100644
--- a/ecs-agent/daemonimages/csidriver/driver/mount.go
+++ b/ecs-agent/daemonimages/csidriver/driver/mount.go
@@ -13,6 +13,8 @@
 
 package driver
 
+// Mounter defines an interface for many volume related options. As of now, only
+// 'PathExists' is added to determine if a file path exists on the node.
 type Mounter interface {
 	PathExists(path string) (bool, error)
 }
diff --git a/ecs-agent/daemonimages/csidriver/util/fs/fs_unsupported.go b/ecs-agent/daemonimages/csidriver/util/fs/fs_unsupported.go
index bf9d877842..962b09e546 100644
--- a/ecs-agent/daemonimages/csidriver/util/fs/fs_unsupported.go
+++ b/ecs-agent/daemonimages/csidriver/util/fs/fs_unsupported.go
@@ -1,5 +1,5 @@
-//go:build !linux && !darwin && !windows
-// +build !linux,!darwin,!windows
+//go:build !linux && !darwin
+// +build !linux,!darwin
 
 // Copyright Amazon.com Inc. or its affiliates. All Rights Reserved.
 //
diff --git a/ecs-agent/daemonimages/csidriver/util/fs/fs_windows.go b/ecs-agent/daemonimages/csidriver/util/fs/fs_windows.go
deleted file mode 100644
index 70c58b67e0..0000000000
--- a/ecs-agent/daemonimages/csidriver/util/fs/fs_windows.go
+++ /dev/null
@@ -1,76 +0,0 @@
-//go:build windows
-// +build windows
-
-// Copyright Amazon.com Inc. or its affiliates. All Rights Reserved.
-//
-// Licensed under the Apache License, Version 2.0 (the "License"). You may
-// not use this file except in compliance with the License. A copy of the
-// License is located at
-//
-//	http://aws.amazon.com/apache2.0/
-//
-// or in the "license" file accompanying this file. This file is distributed
-// on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
-// express or implied. See the License for the specific language governing
-// permissions and limitations under the License.
-
-package fs
-
-import (
-	"path/filepath"
-	"syscall"
-	"unsafe"
-
-	"golang.org/x/sys/windows"
-)
-
-var (
-	modkernel32            = windows.NewLazySystemDLL("kernel32.dll")
-	procGetDiskFreeSpaceEx = modkernel32.NewProc("GetDiskFreeSpaceExW")
-)
-
-type UsageInfo struct {
-	Bytes  int64
-	Inodes int64
-}
-
-// Info returns (available bytes, byte capacity, byte usage, total inodes, inodes free, inode usage, error)
-// for the filesystem that path resides upon.
-func Info(path string) (
-	available int64, capacity int64, used int64,
-	totalInodes int64, freeInodes int64, usedInodes int64,
-	err error) {
-	var totalNumberOfFreeBytes int64
-	// The equivalent linux call supports calls against files but the syscall for windows
-	// fails for files with error code: The directory name is invalid. (#99173)
-	// https://docs.microsoft.com/en-us/windows/win32/debug/system-error-codes--0-499-
-	// By always ensuring the directory path we meet all uses cases of this function
-	path = filepath.Dir(path)
-	ret, _, err := syscall.Syscall6(
-		procGetDiskFreeSpaceEx.Addr(),
-		4,
-		uintptr(unsafe.Pointer(syscall.StringToUTF16Ptr(path))),
-		uintptr(unsafe.Pointer(&available)),
-		uintptr(unsafe.Pointer(&capacity)),
-		uintptr(unsafe.Pointer(&totalNumberOfFreeBytes)),
-		0,
-		0,
-	)
-	if ret == 0 {
-		available = 0
-		capacity = 0
-		used = 0
-
-		totalInodes = 0
-		freeInodes = 0
-		usedInodes = 0
-
-		return
-	}
-
-	used = capacity - available
-	totalInodes = 0
-	freeInodes = 0
-	usedInodes = 0
-	return
-}