mirror of
https://github.com/mozilla/gecko-dev.git
synced 2024-10-31 22:25:30 +00:00
139 lines
3.0 KiB
C++
139 lines
3.0 KiB
C++
/* -*- 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 "nspr.h"
|
|
#include "prio.h"
|
|
#include "prlock.h"
|
|
|
|
#include <memory>
|
|
#include <queue>
|
|
|
|
|
|
#include "nsAutoPtr.h"
|
|
#include "nsCOMPtr.h"
|
|
#include "nsITimer.h"
|
|
|
|
|
|
#include "m_cpp_utils.h"
|
|
#include "transportflow.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_(),
|
|
packets_lock_(nullptr),
|
|
deliverer_(nullptr) {}
|
|
|
|
~TransportLayerLoopback() {
|
|
while (!packets_.empty()) {
|
|
QueuedPacket *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();
|
|
}
|
|
}
|
|
|
|
// Overrides for TransportLayer
|
|
virtual TransportResult SendPacket(const unsigned char *data, size_t len);
|
|
|
|
// Deliver queued packets
|
|
void DeliverPackets();
|
|
|
|
TRANSPORT_LAYER_ID("loopback")
|
|
|
|
private:
|
|
DISALLOW_COPY_ASSIGN(TransportLayerLoopback);
|
|
|
|
// A queued packet
|
|
class QueuedPacket {
|
|
public:
|
|
QueuedPacket() : data_(nullptr), len_(0) {}
|
|
~QueuedPacket() {
|
|
delete [] data_;
|
|
}
|
|
|
|
void Assign(const unsigned char *data, size_t len) {
|
|
data_ = new unsigned char[len];
|
|
memcpy(static_cast<void *>(data_),
|
|
static_cast<const void *>(data), len);
|
|
len_ = len;
|
|
}
|
|
|
|
const unsigned char *data() const { return data_; }
|
|
size_t len() const { return len_; }
|
|
|
|
private:
|
|
DISALLOW_COPY_ASSIGN(QueuedPacket);
|
|
|
|
unsigned char *data_;
|
|
size_t len_;
|
|
};
|
|
|
|
// A timer to deliver packets if some are available
|
|
// Fires every 100 ms
|
|
class Deliverer : public nsITimerCallback {
|
|
public:
|
|
Deliverer(TransportLayerLoopback *layer) :
|
|
layer_(layer) {}
|
|
virtual ~Deliverer() {
|
|
}
|
|
void Detach() {
|
|
layer_ = nullptr;
|
|
}
|
|
|
|
NS_DECL_THREADSAFE_ISUPPORTS
|
|
NS_DECL_NSITIMERCALLBACK
|
|
|
|
private:
|
|
DISALLOW_COPY_ASSIGN(Deliverer);
|
|
|
|
TransportLayerLoopback *layer_;
|
|
};
|
|
|
|
// Queue a packet for delivery
|
|
nsresult QueuePacket(const unsigned char *data, size_t len);
|
|
|
|
TransportLayerLoopback* peer_;
|
|
nsCOMPtr<nsITimer> timer_;
|
|
std::queue<QueuedPacket *> packets_;
|
|
PRLock *packets_lock_;
|
|
nsRefPtr<Deliverer> deliverer_;
|
|
};
|
|
|
|
} // close namespace
|
|
#endif
|