mirror of
https://github.com/k3s-io/kubernetes.git
synced 2025-07-21 02:41:25 +00:00
3eef755b3b
This tag of hcsshim brings in a couple welcome features/improvements. One being exposing a way to query for hns endpoint statistics (Packets received/sent etc.). This tag also contains some optimizations for querying whether a certain HCN feature is supported, which is a common workflow in kube-proxy on Windows. The first result from querying HCN is now cached so further calls can skip the hcn query as well as the version range parsing that was performed. This also gets rid of some redundant logs that used to hit everytime the version range parsing occurred. The Go-winio dep bump, and all of the ctrd deps are transitive only. Nothing new is needed/intended to be used. Signed-off-by: Daniel Canter <dcanter@microsoft.com>
74 lines
2.6 KiB
Go
74 lines
2.6 KiB
Go
// +build windows
|
|
|
|
package winio
|
|
|
|
import (
|
|
"os"
|
|
"runtime"
|
|
"unsafe"
|
|
|
|
"golang.org/x/sys/windows"
|
|
)
|
|
|
|
// FileBasicInfo contains file access time and file attributes information.
|
|
type FileBasicInfo struct {
|
|
CreationTime, LastAccessTime, LastWriteTime, ChangeTime windows.Filetime
|
|
FileAttributes uint32
|
|
pad uint32 // padding
|
|
}
|
|
|
|
// GetFileBasicInfo retrieves times and attributes for a file.
|
|
func GetFileBasicInfo(f *os.File) (*FileBasicInfo, error) {
|
|
bi := &FileBasicInfo{}
|
|
if err := windows.GetFileInformationByHandleEx(windows.Handle(f.Fd()), windows.FileBasicInfo, (*byte)(unsafe.Pointer(bi)), uint32(unsafe.Sizeof(*bi))); err != nil {
|
|
return nil, &os.PathError{Op: "GetFileInformationByHandleEx", Path: f.Name(), Err: err}
|
|
}
|
|
runtime.KeepAlive(f)
|
|
return bi, nil
|
|
}
|
|
|
|
// SetFileBasicInfo sets times and attributes for a file.
|
|
func SetFileBasicInfo(f *os.File, bi *FileBasicInfo) error {
|
|
if err := windows.SetFileInformationByHandle(windows.Handle(f.Fd()), windows.FileBasicInfo, (*byte)(unsafe.Pointer(bi)), uint32(unsafe.Sizeof(*bi))); err != nil {
|
|
return &os.PathError{Op: "SetFileInformationByHandle", Path: f.Name(), Err: err}
|
|
}
|
|
runtime.KeepAlive(f)
|
|
return nil
|
|
}
|
|
|
|
// FileStandardInfo contains extended information for the file.
|
|
// FILE_STANDARD_INFO in WinBase.h
|
|
// https://docs.microsoft.com/en-us/windows/win32/api/winbase/ns-winbase-file_standard_info
|
|
type FileStandardInfo struct {
|
|
AllocationSize, EndOfFile int64
|
|
NumberOfLinks uint32
|
|
DeletePending, Directory bool
|
|
}
|
|
|
|
// GetFileStandardInfo retrieves ended information for the file.
|
|
func GetFileStandardInfo(f *os.File) (*FileStandardInfo, error) {
|
|
si := &FileStandardInfo{}
|
|
if err := windows.GetFileInformationByHandleEx(windows.Handle(f.Fd()), windows.FileStandardInfo, (*byte)(unsafe.Pointer(si)), uint32(unsafe.Sizeof(*si))); err != nil {
|
|
return nil, &os.PathError{Op: "GetFileInformationByHandleEx", Path: f.Name(), Err: err}
|
|
}
|
|
runtime.KeepAlive(f)
|
|
return si, nil
|
|
}
|
|
|
|
// FileIDInfo contains the volume serial number and file ID for a file. This pair should be
|
|
// unique on a system.
|
|
type FileIDInfo struct {
|
|
VolumeSerialNumber uint64
|
|
FileID [16]byte
|
|
}
|
|
|
|
// GetFileID retrieves the unique (volume, file ID) pair for a file.
|
|
func GetFileID(f *os.File) (*FileIDInfo, error) {
|
|
fileID := &FileIDInfo{}
|
|
if err := windows.GetFileInformationByHandleEx(windows.Handle(f.Fd()), windows.FileIdInfo, (*byte)(unsafe.Pointer(fileID)), uint32(unsafe.Sizeof(*fileID))); err != nil {
|
|
return nil, &os.PathError{Op: "GetFileInformationByHandleEx", Path: f.Name(), Err: err}
|
|
}
|
|
runtime.KeepAlive(f)
|
|
return fileID, nil
|
|
}
|