// Delete removes the data associated with the key from the database.
func (db *DB) Delete(opts *WriteOptions, key []byte) error {
var (
cErr *C.char
cKey = byteToChar(key)
)
C.rocksdb_delete(db.c, opts.c, cKey, C.size_t(len(key)), &cErr)
return convertErr(cErr)
}
// Delete removes the data associated with the key from the database.
func (db *DB) Delete(opts *WriteOptions, key []byte) error {
var (
cErr *C.char
cKey = byteToChar(key)
)
C.rocksdb_delete(db.c, opts.c, cKey, C.size_t(len(key)), &cErr)
if cErr != nil {
defer C.free(unsafe.Pointer(cErr))
return errors.New(C.GoString(cErr))
}
return nil
}
// del removes the item from the db with the given key.
func (r *RocksDB) del(key Key) error {
var cErr *C.char
C.rocksdb_delete(
r.rdb,
r.wOpts,
(*C.char)(unsafe.Pointer(&key[0])),
C.size_t(len(key)),
&cErr)
if cErr != nil {
return charToErr(cErr)
}
return nil
}
func (db *DB) delete(wo *WriteOptions, key []byte) error {
var errStr *C.char
var k *C.char
if len(key) != 0 {
k = (*C.char)(unsafe.Pointer(&key[0]))
}
C.rocksdb_delete(
db.db, wo.Opt, k, C.size_t(len(key)), &errStr)
if errStr != nil {
return saveError(errStr)
}
return nil
}
func (db *DB) Del(rawKey []byte, wb *WriteBatch) error {
var ck = (*C.char)(unsafe.Pointer(&rawKey[0]))
if wb == nil {
var errStr *C.char
C.rocksdb_delete(db.db, db.wOpt, ck, C.size_t(len(rawKey)), &errStr)
if errStr != nil {
defer C.free(unsafe.Pointer(errStr))
return errors.New(C.GoString(errStr))
}
} else {
C.rocksdb_writebatch_delete(wb.batch, ck, C.size_t(len(rawKey)))
}
return nil
}
// Clear removes the item from the db with the given key.
func (r *RocksDB) Clear(key Key) error {
if len(key) == 0 {
return emptyKeyError()
}
var cErr *C.char
C.rocksdb_delete(
r.rdb,
r.wOpts,
bytesPointer(key),
C.size_t(len(key)),
&cErr)
if cErr != nil {
return charToErr(cErr)
}
return nil
}
// Delete removes the data associated with the key from the database.
//
// The key byte slice may be reused safely. Delete takes a copy of
// them before returning.
func (db *DB) Delete(wo *WriteOptions, key []byte) error {
var errStr *C.char
var k *C.char
if len(key) != 0 {
k = (*C.char)(unsafe.Pointer(&key[0]))
}
C.rocksdb_delete(
db.Ldb, wo.Opt, k, C.size_t(len(key)), &errStr)
if errStr != nil {
gs := C.GoString(errStr)
C.free(unsafe.Pointer(errStr))
return DatabaseError(gs)
}
return nil
}