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/*
* Copyright (C) 2021, 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. 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 INC. 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;
* 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 "WebLockMode.h"
#include <wtf/CrossThreadCopier.h>
#include <wtf/Vector.h>
#include <wtf/text/WTFString.h>
namespace WebCore {
struct WebLockManagerSnapshot {
struct Info {
String name;
WebLockMode mode { WebLockMode::Exclusive };
String clientId;
Info isolatedCopy() const { return { name.isolatedCopy(), mode, clientId.isolatedCopy() }; }
template<class Encoder> void encode(Encoder& encoder) const { encoder << name << mode << clientId; }
template<class Decoder> static std::optional<Info> decode(Decoder&);
};
Vector<Info> held;
Vector<Info> pending;
WebLockManagerSnapshot isolatedCopy() const { return { crossThreadCopy(held), crossThreadCopy(pending) }; }
template<class Encoder> void encode(Encoder& encoder) const { encoder << held << pending; }
template<class Decoder> static std::optional<WebLockManagerSnapshot> decode(Decoder&);
};
template<class Decoder>
std::optional<WebLockManagerSnapshot::Info> WebLockManagerSnapshot::Info::decode(Decoder& decoder)
{
std::optional<String> name;
decoder >> name;
if (!name)
return std::nullopt;
std::optional<WebLockMode> mode;
decoder >> mode;
if (!mode)
return std::nullopt;
std::optional<String> clientId;
decoder >> clientId;
if (!clientId)
return std::nullopt;
return { { WTFMove(*name), *mode, WTFMove(*clientId) } };
}
template<class Decoder>
std::optional<WebLockManagerSnapshot> WebLockManagerSnapshot::decode(Decoder& decoder)
{
std::optional<Vector<Info>> held;
decoder >> held;
if (!held)
return std::nullopt;
std::optional<Vector<Info>> pending;
decoder >> pending;
if (!pending)
return std::nullopt;
return { { WTFMove(*held), WTFMove(*pending) } };
}
} // namespace WebCore
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