blob: e048f31937c8c0774510a86c671f9ac5a27a6231 [file] [log] [blame]
/*
* Copyright (C) 2019 Apple 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 INC. ``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 INC. OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#pragma once
#include <wtf/MallocPtr.h>
namespace JSC {
class CachePayload {
public:
#if !OS(WINDOWS)
JS_EXPORT_PRIVATE static CachePayload makeMappedPayload(void*, size_t);
#endif
JS_EXPORT_PRIVATE static CachePayload makeMallocPayload(MallocPtr<uint8_t>&&, size_t);
JS_EXPORT_PRIVATE static CachePayload makeEmptyPayload();
JS_EXPORT_PRIVATE CachePayload(CachePayload&&);
JS_EXPORT_PRIVATE ~CachePayload();
JS_EXPORT_PRIVATE CachePayload& operator=(CachePayload&& other);
const uint8_t* data() const { return m_data; }
size_t size() const { return m_size; }
private:
CachePayload(bool mapped, void* data, size_t size)
: m_mapped(mapped)
, m_size(size)
, m_data(static_cast<uint8_t*>(data))
{
}
void freeData();
bool m_mapped;
size_t m_size;
uint8_t* m_data;
};
} // namespace JSC