chromium/net/third_party/quiche/src/quiche/quic/core/io/quic_event_loop.h

// Copyright 2022 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifndef QUICHE_QUIC_IO_QUIC_EVENT_LOOP_H_
#define QUICHE_QUIC_IO_QUIC_EVENT_LOOP_H_

#include <cstdint>
#include <memory>

#include "absl/base/attributes.h"
#include "quiche/quic/core/io/socket.h"
#include "quiche/quic/core/quic_alarm_factory.h"
#include "quiche/quic/core/quic_clock.h"

namespace quic {

// A bitmask indicating a set of I/O events.
QuicSocketEventMask;
inline constexpr QuicSocketEventMask kSocketEventReadable = …;
inline constexpr QuicSocketEventMask kSocketEventWritable = …;
inline constexpr QuicSocketEventMask kSocketEventError = …;

class QuicEventLoop;

// A listener associated with a file descriptor.
class QuicSocketEventListener { … };

// An abstraction for an event loop that can handle alarms and notify the
// listener about I/O events occuring to the registered UDP sockets.
//
// Note on error handling: while most of the methods below return a boolean to
// indicate whether the operation has succeeded or not, some will QUIC_BUG
// instead.
class QuicEventLoop { … };

// A factory object for the event loop. Every implementation is expected to have
// a static singleton instance.
class QuicEventLoopFactory { … };

}  // namespace quic

#endif  // QUICHE_QUIC_IO_QUIC_EVENT_LOOP_H_