From 6a7695e3676ef8275afd5eafde6e045b7a7ab024 Mon Sep 17 00:00:00 2001 From: Dmitrij Koniajev Date: Tue, 16 Oct 2018 01:47:25 +0300 Subject: ethdb, rpc: support building on js/wasm (#17709) The changes allow building WebAssembly applications which use ethclient.Client. --- ethdb/table_batch.go | 51 +++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 51 insertions(+) create mode 100644 ethdb/table_batch.go (limited to 'ethdb/table_batch.go') diff --git a/ethdb/table_batch.go b/ethdb/table_batch.go new file mode 100644 index 000000000..ae83e79ce --- /dev/null +++ b/ethdb/table_batch.go @@ -0,0 +1,51 @@ +// Copyright 2014 The go-ethereum Authors +// This file is part of the go-ethereum library. +// +// The go-ethereum library is free software: you can redistribute it and/or modify +// it under the terms of the GNU Lesser General Public License as published by +// the Free Software Foundation, either version 3 of the License, or +// (at your option) any later version. +// +// The go-ethereum library is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU Lesser General Public License for more details. +// +// You should have received a copy of the GNU Lesser General Public License +// along with the go-ethereum library. If not, see . + +package ethdb + +type tableBatch struct { + batch Batch + prefix string +} + +// NewTableBatch returns a Batch object which prefixes all keys with a given string. +func NewTableBatch(db Database, prefix string) Batch { + return &tableBatch{db.NewBatch(), prefix} +} + +func (dt *table) NewBatch() Batch { + return &tableBatch{dt.db.NewBatch(), dt.prefix} +} + +func (tb *tableBatch) Put(key, value []byte) error { + return tb.batch.Put(append([]byte(tb.prefix), key...), value) +} + +func (tb *tableBatch) Delete(key []byte) error { + return tb.batch.Delete(append([]byte(tb.prefix), key...)) +} + +func (tb *tableBatch) Write() error { + return tb.batch.Write() +} + +func (tb *tableBatch) ValueSize() int { + return tb.batch.ValueSize() +} + +func (tb *tableBatch) Reset() { + tb.batch.Reset() +} -- cgit v1.2.3