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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=2 et sw=2 tw=80: */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this file,
* You can obtain one at http://mozilla.org/MPL/2.0/. */
// Original author: ekr@rtfm.com
#ifndef transportlayerloopback_h__
#define transportlayerloopback_h__
#include "prlock.h"
#include <queue>
#include "nsCOMPtr.h"
#include "nsINamed.h"
#include "nsITimer.h"
#include "m_cpp_utils.h"
#include "transportlayer.h"
// A simple loopback transport layer that is used for testing.
namespace mozilla {
class TransportLayerLoopback : public TransportLayer {
public:
TransportLayerLoopback()
: peer_(nullptr),
timer_(nullptr),
packets_lock_(nullptr),
deliverer_(nullptr),
combinePackets_(false) {}
~TransportLayerLoopback() {
while (!packets_.empty()) {
MediaPacket* packet = packets_.front();
packets_.pop();
delete packet;
}
if (packets_lock_) {
PR_DestroyLock(packets_lock_);
}
timer_->Cancel();
deliverer_->Detach();
}
// Init
nsresult Init();
// Connect to the other side
void Connect(TransportLayerLoopback* peer);
// Disconnect
void Disconnect() {
TransportLayerLoopback* peer = peer_;
peer_ = nullptr;
if (peer) {
peer->Disconnect();
}
}
void CombinePackets(bool combine) { combinePackets_ = combine; }
// Overrides for TransportLayer
TransportResult SendPacket(MediaPacket& packet) override;
// Deliver queued packets
void DeliverPackets();
TRANSPORT_LAYER_ID("loopback")
private:
DISALLOW_COPY_ASSIGN(TransportLayerLoopback);
// A timer to deliver packets if some are available
// Fires every 100 ms
class Deliverer : public nsITimerCallback, public nsINamed {
public:
explicit Deliverer(TransportLayerLoopback* layer) : layer_(layer) {}
void Detach() { layer_ = nullptr; }
NS_DECL_THREADSAFE_ISUPPORTS
NS_DECL_NSITIMERCALLBACK
NS_DECL_NSINAMED
private:
virtual ~Deliverer() = default;
DISALLOW_COPY_ASSIGN(Deliverer);
TransportLayerLoopback* layer_;
};
// Queue a packet for delivery
nsresult QueuePacket(MediaPacket& packet);
TransportLayerLoopback* peer_;
nsCOMPtr<nsITimer> timer_;
std::queue<MediaPacket*> packets_;
PRLock* packets_lock_;
RefPtr<Deliverer> deliverer_;
bool combinePackets_;
};
} // namespace mozilla
#endif
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