// SeekCursor seeks to the entry located at the specified cursor string. If no entry
// matching the specified cursor is found the call will seek to the next closest entry
// (in terms of time) instead. SeekCursor returns true if it was able to seek to the
// exact postion, or false, if it was able to only seek to the next closest position.
// It returns an error if the operation failed completely
func (j *Journal) SeekCursor(cursor string) error {
ccursor := C.CString(cursor)
defer C.free(unsafe.Pointer(ccursor))
j.mu.Lock()
r := C.sd_journal_seek_cursor(j.cjournal, ccursor)
j.mu.Unlock()
if r < 0 {
return fmt.Errorf("failed to seek to cursor '%s': %d", cursor, r)
}
return nil
}
func (s *Service) InitJournal() {
r := C.sd_journal_open(&s.Journal, C.SD_JOURNAL_LOCAL_ONLY)
if r < 0 {
panic(fmt.Sprintf("failed to open journal: %s", C.strerror(-r)))
}
bytes, err := ioutil.ReadFile(*elasticCursorFile)
if err == nil {
s.Cursor = string(bytes)
}
if s.Cursor != "" {
r = C.sd_journal_seek_cursor(s.Journal, C.CString(s.Cursor))
if r < 0 {
panic(fmt.Sprintf("failed to seek journal: %s", C.strerror(-r)))
}
r = C.sd_journal_next_skip(s.Journal, 1)
if r < 0 {
panic(fmt.Sprintf("failed to skip current journal entry: %s", C.strerror(-r)))
}
}
}
func (s *Service) InitJournal() {
r := C.sd_journal_open(&s.Journal, C.SD_JOURNAL_LOCAL_ONLY)
if r < 0 {
log.Fatalf("failed to open journal: %s\n", C.strerror(-r))
}
bytes, err := ioutil.ReadFile(s.Config.State)
if err == nil {
s.Cursor = string(bytes)
}
if s.Cursor != "" {
r = C.sd_journal_seek_cursor(s.Journal, C.CString(s.Cursor))
if r < 0 {
log.Fatalf("failed to seek journal: %s\n", C.strerror(-r))
}
r = C.sd_journal_next_skip(s.Journal, 1)
if r < 0 {
log.Fatalf("failed to skip current journal entry: %s\n", C.strerror(-r))
}
}
}
