Golang read from systemd journal

journal.go

package journal

// #cgo pkg-config: --cflags --libs libsystemd-journal
// #include <systemd/sd-journal.h>
import (
	"C"
)

func New() (j *C.struct_sd_journal) {
	j = new(C.struct_sd_journal)
	C.sd_journal_open(&j, C.SD_JOURNAL_LOCAL_ONLY)
        j.SeekNext()
	return j
}

func (j *C.struct_sd_journal) Close() {
	C.sd_journal_close(j)
}

func (j *C.struct_sd_journal) SeekNext() (r int) {
        return int(C.sd_journal_next(j))
}

func (j *C.struct_sd_journal) SeekPrev() (r int) {
        return int(C.sd_journal_previous(j))
}

func (j *C.struct_sd_journal) SeekHead() (r int) {
        return int(C.sd_journal_seek_head(j))
}

func (j *C.struct_sd_journal) SeekTail() (r int) {
        return int(C.sd_journal_seek_tail(j))
}

func (j *C.struct_sd_journal) GetCursor() (scursor string) {
	var cursor *C.char
        C.sd_journal_get_cursor(j, &cursor)
        scursor = C.GoString(cursor)
	return
}