Source/WebCore/platform/leveldb/LevelDBWriteBatch.cpp

/*
 * Copyright (C) 2011 Google Inc. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * 1.  Redistributions of source code must retain the above copyright
 *     notice, this list of conditions and the following disclaimer.
 * 2.  Redistributions in binary form must reproduce the above copyright
 *     notice, this list of conditions and the following disclaimer in the
 *     documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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#include "config.h"
#include "LevelDBWriteBatch.h"

#if USE(LEVELDB)

#include "LevelDBSlice.h"
#include <leveldb/slice.h>
#include <leveldb/write_batch.h>

namespace WebCore {

PassOwnPtr<LevelDBWriteBatch> LevelDBWriteBatch::create()
{
    return adoptPtr(new LevelDBWriteBatch);
}

LevelDBWriteBatch::LevelDBWriteBatch()
    : m_writeBatch(adoptPtr(new leveldb::WriteBatch))
{
}

LevelDBWriteBatch::~LevelDBWriteBatch()
{
}

static leveldb::Slice makeSlice(const LevelDBSlice& s)
{
    return leveldb::Slice(s.begin(), s.end() - s.begin());
}

void LevelDBWriteBatch::put(const LevelDBSlice& key, const LevelDBSlice& value)
{
    m_writeBatch->Put(makeSlice(key), makeSlice(value));
}

void LevelDBWriteBatch::remove(const LevelDBSlice& key)
{
    m_writeBatch->Delete(makeSlice(key));
}

void LevelDBWriteBatch::clear()
{
    m_writeBatch->Clear();
}

}

#endif