Actions.h

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/*
 *  Copyright (c) 2018-present, Facebook, Inc.
 *  All rights reserved.
 *
 *  This source code is licensed under the BSD-style license found in the
 *  LICENSE file in the root directory of this source tree.
 */

#pragma once

#include <boost/variant.hpp>
#include <fizz/client/PskCache.h>
#include <fizz/protocol/Actions.h>
#include <fizz/protocol/Params.h>

namespace fizz {
namespace client {

class State;

using MutateState = folly::Function<void(State&)>;

struct ReportEarlyHandshakeSuccess {
  uint32_t maxEarlyDataSize{0};
};

struct ReportHandshakeSuccess {
  bool earlyDataAccepted{false};
};

struct ReportEarlyWriteFailed {
  EarlyAppWrite write;
};

struct NewCachedPsk {
  CachedPsk psk;
};

using Action = boost::variant<
    DeliverAppData,
    WriteToSocket,
    ReportHandshakeSuccess,
    ReportEarlyHandshakeSuccess,
    ReportEarlyWriteFailed,
    ReportError,
    MutateState,
    WaitForData,
    NewCachedPsk>;
// TODO use small_vector once we are sure it is portable.
using Actions = std::vector<Action>;

namespace detail {

template <typename... Args>
Actions actions(Args&&... act) {
  Actions acts;
  fizz::detail::addAction(acts, std::forward<Args>(act)...);
  return acts;
}
} // namespace detail
} // namespace client
} // namespace fizz