81 lines
1.5 KiB
Go
81 lines
1.5 KiB
Go
package sessionwriter
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import (
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"fmt"
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"os"
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"strconv"
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"sync"
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"time"
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)
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type Session struct {
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lock *sync.Mutex
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dom *os.File
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dev *os.File
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lastUpdate time.Time
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}
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func NewSession(dir string, id uint64) (*Session, error) {
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if id == 0 {
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return nil, fmt.Errorf("wrong session id")
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}
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filePath := dir + strconv.FormatUint(id, 10)
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domFile, err := os.OpenFile(filePath, os.O_WRONLY|os.O_CREATE|os.O_APPEND, 0644)
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if err != nil {
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return nil, err
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}
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filePath += "devtools"
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devFile, err := os.OpenFile(filePath, os.O_WRONLY|os.O_CREATE|os.O_APPEND, 0644)
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if err != nil {
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domFile.Close() // should close first file descriptor
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return nil, err
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}
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return &Session{
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lock: &sync.Mutex{},
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dom: domFile,
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dev: devFile,
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lastUpdate: time.Now(),
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}, nil
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}
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func (s *Session) Lock() {
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s.lock.Lock()
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}
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func (s *Session) Unlock() {
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s.lock.Unlock()
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}
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func (s *Session) Write(mode FileType, data []byte) (err error) {
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if mode == DOM {
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_, err = s.dom.Write(data)
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} else {
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_, err = s.dev.Write(data)
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}
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s.lastUpdate = time.Now()
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return err
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}
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func (s *Session) LastUpdate() time.Time {
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return s.lastUpdate
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}
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func (s *Session) Sync() error {
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domErr := s.dom.Sync()
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devErr := s.dev.Sync()
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if domErr == nil && devErr == nil {
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return nil
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}
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return fmt.Errorf("dom: %s, dev: %s", domErr, devErr)
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}
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func (s *Session) Close() error {
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domErr := s.dom.Close()
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devErr := s.dev.Close()
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if domErr == nil && devErr == nil {
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return nil
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}
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return fmt.Errorf("dom: %s, dev: %s", domErr, devErr)
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}
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