gistfile1.go

package uuid

// #include <stdlib.h>
// #include <uuid/uuid.h>
import "C"
import "unsafe"

func Generate() []byte {
    var uuid []byte = make([]byte, 16)

    uuid_ := C.malloc(16)
    C.uuid_generate((*C.uchar)(unsafe.Pointer(uuid_)))

    ptr := (*[16]byte)(unsafe.Pointer(uuid_))
    copy(uuid, ptr[:])
    C.free(uuid_)
    return uuid
}

func Unparse(uuid []byte) string {

    var uuid_c *C.uchar

    uuid_c = (*C.uchar)(unsafe.Pointer(&uuid[0]))
    ptr := C.malloc(37)
    uuid_c_str := (*C.char)(unsafe.Pointer(ptr))
    C.uuid_unparse(uuid_c, uuid_c_str)

    uuid_str := C.GoString(uuid_c_str)
    C.free(ptr)

    return uuid_str
}

func Parse(uuid_str string) []byte {

    var uuid []byte = make([]byte, 16)

    ptr := C.malloc(16)
    uuid_c_str := C.CString(uuid_str)
    C.uuid_parse(uuid_c_str, (*C.uchar)(unsafe.Pointer(ptr)))
    C.free(unsafe.Pointer(uuid_c_str))

    ptr1 := (*[16]byte)(unsafe.Pointer(ptr))
    copy(uuid, ptr1[:])
    C.free(ptr)
    return uuid
}