tstor/src/host/vfs/log.go
2024-01-28 23:22:49 +03:00

117 lines
2.3 KiB
Go

package vfs
import (
"io/fs"
"log/slog"
)
type LogFS struct {
fs Filesystem
log *slog.Logger
}
var _ Filesystem = (*LogFS)(nil)
func WrapLogFS(fs Filesystem, log *slog.Logger) *LogFS {
return &LogFS{
fs: fs,
log: log.With("component", "fs"),
}
}
// Open implements Filesystem.
func (fs *LogFS) Open(filename string) (File, error) {
file, err := fs.fs.Open(filename)
if err != nil {
fs.log.With("filename", filename).Error("Failed to open file")
}
file = WrapLogFile(file, filename, fs.log)
return file, err
}
// ReadDir implements Filesystem.
func (fs *LogFS) ReadDir(path string) ([]fs.DirEntry, error) {
file, err := fs.fs.ReadDir(path)
if err != nil {
fs.log.Error("Failed to read dir", "path", path, "error", err)
}
return file, err
}
// Stat implements Filesystem.
func (fs *LogFS) Stat(filename string) (fs.FileInfo, error) {
file, err := fs.fs.Stat(filename)
if err != nil {
fs.log.Error("Failed to stat", "filename", filename, "error", err)
}
return file, err
}
// Unlink implements Filesystem.
func (fs *LogFS) Unlink(filename string) error {
err := fs.fs.Unlink(filename)
if err != nil {
fs.log.Error("Failed to stat", "filename", filename, "error", err)
}
return err
}
type LogFile struct {
f File
log *slog.Logger
}
var _ File = (*LogFile)(nil)
func WrapLogFile(f File, filename string, log *slog.Logger) *LogFile {
return &LogFile{
f: f,
log: log.With("filename", filename),
}
}
// Close implements File.
func (f *LogFile) Close() error {
err := f.f.Close()
if err != nil {
f.log.Error("Failed to close", "error", err)
}
return err
}
// IsDir implements File.
func (f *LogFile) IsDir() bool {
return f.f.IsDir()
}
// Read implements File.
func (f *LogFile) Read(p []byte) (n int, err error) {
n, err = f.f.Read(p)
if err != nil {
f.log.Error("Failed to read", "error", err)
}
return n, err
}
// ReadAt implements File.
func (f *LogFile) ReadAt(p []byte, off int64) (n int, err error) {
n, err = f.f.ReadAt(p, off)
if err != nil {
f.log.Error("Failed to read", "offset", off, "error", err)
}
return n, err
}
// Size implements File.
func (f *LogFile) Size() int64 {
return f.f.Size()
}
// Stat implements File.
func (f *LogFile) Stat() (fs.FileInfo, error) {
info, err := f.f.Stat()
if err != nil {
f.log.Error("Failed to read", "error", err)
}
return info, err
}