Files
gluetun/internal/storage/flush.go
Quentin McGaw 36b504609b chore(all): memory and thread safe storage
- settings: get filter choices from storage for settings validation
- updater: update servers to the storage
- storage: minimal deep copying and data duplication
- storage: add merged servers mutex for thread safety
- connection: filter servers in storage
- formatter: format servers to Markdown in storage
- PIA: get server by name from storage directly
- Updater: get servers count from storage directly
- Updater: equality check done in storage, fix #882
2022-06-05 15:19:16 +00:00

42 lines
866 B
Go

package storage
import (
"encoding/json"
"os"
"path/filepath"
)
// FlushToFile flushes the merged servers data to the file
// specified by path, as indented JSON.
func (s *Storage) FlushToFile(path string) error {
s.mergedMutex.RLock()
defer s.mergedMutex.RUnlock()
return s.flushToFile(path)
}
// flushToFile flushes the merged servers data to the file
// specified by path, as indented JSON. It is not thread-safe.
func (s *Storage) flushToFile(path string) error {
dirPath := filepath.Dir(path)
if err := os.MkdirAll(dirPath, 0644); err != nil {
return err
}
file, err := os.OpenFile(path, os.O_CREATE|os.O_WRONLY|os.O_TRUNC, 0644)
if err != nil {
return err
}
encoder := json.NewEncoder(file)
encoder.SetIndent("", " ")
err = encoder.Encode(&s.mergedServers)
if err != nil {
_ = file.Close()
return err
}
return file.Close()
}