0b1534c52e
This fixes a variety of MSVC warnings about value truncations when implicitly storing the 64-bit values we get back from e.g. TimeTicks in 32-bit objects, and removes the need for a number of explicit casts. This also moves a number of constants so they're declared right where they're used, which is easier to read and maintain, and makes some of them of integral type rather than using the "enum hack". BUG=chromium:81439 TEST=none R=tommi@webrtc.org Review URL: https://webrtc-codereview.appspot.com/33649004 git-svn-id: http://webrtc.googlecode.com/svn/trunk@7905 4adac7df-926f-26a2-2b94-8c16560cd09d
99 lines
2.8 KiB
C++
99 lines
2.8 KiB
C++
/*
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* Copyright (c) 2012 The WebRTC project authors. All Rights Reserved.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree. An additional intellectual property rights grant can be found
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* in the file PATENTS. All contributing project authors may
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* be found in the AUTHORS file in the root of the source tree.
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*/
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#ifndef WEBRTC_TEST_FAKE_NETWORK_PIPE_H_
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#define WEBRTC_TEST_FAKE_NETWORK_PIPE_H_
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#include <queue>
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#include "webrtc/base/constructormagic.h"
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#include "webrtc/system_wrappers/interface/event_wrapper.h"
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#include "webrtc/system_wrappers/interface/scoped_ptr.h"
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#include "webrtc/typedefs.h"
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namespace webrtc {
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class CriticalSectionWrapper;
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class NetworkPacket;
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class PacketReceiver;
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// Class faking a network link. This is a simple and naive solution just faking
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// capacity and adding an extra transport delay in addition to the capacity
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// introduced delay.
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// TODO(mflodman) Add random and bursty packet loss.
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class FakeNetworkPipe {
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public:
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struct Config {
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Config()
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: queue_length_packets(0),
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queue_delay_ms(0),
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delay_standard_deviation_ms(0),
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link_capacity_kbps(0),
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loss_percent(0) {
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}
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// Queue length in number of packets.
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size_t queue_length_packets;
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// Delay in addition to capacity induced delay.
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int queue_delay_ms;
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// Standard deviation of the extra delay.
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int delay_standard_deviation_ms;
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// Link capacity in kbps.
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int link_capacity_kbps;
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// Random packet loss.
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int loss_percent;
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};
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explicit FakeNetworkPipe(const FakeNetworkPipe::Config& config);
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~FakeNetworkPipe();
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// Must not be called in parallel with SendPacket or Process.
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void SetReceiver(PacketReceiver* receiver);
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// Sets a new configuration. This won't affect packets already in the pipe.
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void SetConfig(const FakeNetworkPipe::Config& config);
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// Sends a new packet to the link.
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void SendPacket(const uint8_t* packet, size_t packet_length);
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// Processes the network queues and trigger PacketReceiver::IncomingPacket for
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// packets ready to be delivered.
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void Process();
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int64_t TimeUntilNextProcess() const;
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// Get statistics.
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float PercentageLoss();
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int AverageDelay();
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size_t dropped_packets() { return dropped_packets_; }
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size_t sent_packets() { return sent_packets_; }
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private:
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scoped_ptr<CriticalSectionWrapper> lock_;
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PacketReceiver* packet_receiver_;
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std::queue<NetworkPacket*> capacity_link_;
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std::queue<NetworkPacket*> delay_link_;
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// Link configuration.
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Config config_;
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// Statistics.
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size_t dropped_packets_;
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size_t sent_packets_;
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int total_packet_delay_;
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int64_t next_process_time_;
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DISALLOW_COPY_AND_ASSIGN(FakeNetworkPipe);
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};
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} // namespace webrtc
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#endif // WEBRTC_TEST_FAKE_NETWORK_PIPE_H_
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