// Store ...
func (db *Database) Store(key, value []byte) (err error) {
res := C.unqlite_kv_store(db.handle,
unsafe.Pointer(&key[0]), C.int(len(key)),
unsafe.Pointer(&value[0]), C.unqlite_int64(len(value)))
if res == C.UNQLITE_OK {
return nil
}
return UnQLiteError(res)
}
// Append ...
func (db *Database) Append(key, value []byte) (err error) {
res := C.unqlite_kv_append(db.handle,
unsafe.Pointer(&key[0]), C.int(len(key)),
unsafe.Pointer(&value[0]), C.unqlite_int64(len(value)))
if res != C.UNQLITE_OK {
err = UnQLiteError(res)
}
return
}
func (u *Unqlite) KvFetch(key, value []byte) ([]byte, error) {
outlen := C.unqlite_int64(len(value))
e := C.unqlite_kv_fetch(u.db, unsafe.Pointer(&key[0]), C.int(len(key)), unsafe.Pointer(&value[0]), &outlen)
err := code2Error(e)
n := int(outlen)
if n <= 0 {
return nil, err
}
return value[:n], err
}
// K-V store
func (u *Unqlite) KvStore(key, value []byte) error {
var k, v unsafe.Pointer
if len(key) > 0 {
k = unsafe.Pointer(&key[0])
}
if len(value) > 0 {
v = unsafe.Pointer(&value[0])
}
e := C.unqlite_kv_store(u.db, k, C.int(len(key)), v, C.unqlite_int64(len(value)))
return code2Error(e)
}
//get data from the cursor, data can be nil
func (c *Cursor) Data(data []byte) ([]byte, error) {
var v unsafe.Pointer
outlen := C.unqlite_int64(len(data))
if outlen == 0 {
e := C.unqlite_kv_cursor_data(c.c, nil, &outlen)
if e != C.UNQLITE_OK {
return nil, code2Error(e)
}
data = make([]byte, outlen)
}
v = unsafe.Pointer(&data[0])
e := C.unqlite_kv_cursor_data(c.c, v, &outlen)
if e != C.UNQLITE_OK {
return nil, code2Error(e)
}
return data[:outlen], code2Error(e)
}
// KvStore write a new record into the database. If the record does not exists, it is created. Otherwise, the new data chunk is appended to the end of the old chunk.
// See: http://unqlite.org/c_api/unqlite_kv_append.html
func (u *Unqlite) KvAppend(key []byte, value []byte) error {
if rc := C.unqlite_kv_append(u.db, unsafe.Pointer(&key[0]), C.int(len(key)), unsafe.Pointer(&value[0]), C.unqlite_int64(len(value))); rc != C.UNQLITE_OK {
return ErrCode(rc)
}
return nil
}
// Append appends value to the key-value pair in the database.
func (h *Handle) Append(key, value []byte) error {
rv := C.unqlite_kv_append(h.db, unsafe.Pointer(&key[0]), C.int(len(key)), unsafe.Pointer(&value[0]), C.unqlite_int64(len(value)))
if rv == C.UNQLITE_OK {
return nil
}
return Errno(rv)
}
func (c *Context) Int64(i64 int64) error {
e := C.unqlite_result_int64(c.c, C.unqlite_int64(i64))
return code2Error(e)
}
func (v *Value) Int64(i64 int64) error {
e := C.unqlite_value_int64(v.v, C.unqlite_int64(i64))
return code2Error(e)
}