e753641ef1
Calling VirtualSocketServer::SetSendingBlocked(true) will simulate the network interface being blocked, and SetSendingBlocked(false) will simulate it being unblocked, resulting in SignalReadyToSend if appropriate. I plan to use this to write tests for upper layers of code that deal with EWOULDBLOCK/SignalReadyToSend. Also doing some minor housekeeping in this CL (using RTC_DCHECK, renaming variables, etc.). R=pthatcher@webrtc.org, skvlad@webrtc.org Review URL: https://codereview.webrtc.org/2284903002 . Cr-Commit-Position: refs/heads/master@{#14170}
108 lines
3.6 KiB
C++
108 lines
3.6 KiB
C++
/*
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* Copyright 2004 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_BASE_TESTCLIENT_H_
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#define WEBRTC_BASE_TESTCLIENT_H_
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#include <vector>
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#include "webrtc/base/asyncudpsocket.h"
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#include "webrtc/base/constructormagic.h"
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#include "webrtc/base/criticalsection.h"
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namespace rtc {
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// A simple client that can send TCP or UDP data and check that it receives
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// what it expects to receive. Useful for testing server functionality.
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class TestClient : public sigslot::has_slots<> {
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public:
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// Records the contents of a packet that was received.
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struct Packet {
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Packet(const SocketAddress& a,
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const char* b,
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size_t s,
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const PacketTime& packet_time);
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Packet(const Packet& p);
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virtual ~Packet();
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SocketAddress addr;
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char* buf;
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size_t size;
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PacketTime packet_time;
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};
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// Default timeout for NextPacket reads.
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static const int kTimeoutMs = 5000;
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// Creates a client that will send and receive with the given socket and
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// will post itself messages with the given thread.
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explicit TestClient(AsyncPacketSocket* socket);
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~TestClient() override;
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SocketAddress address() const { return socket_->GetLocalAddress(); }
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SocketAddress remote_address() const { return socket_->GetRemoteAddress(); }
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// Checks that the socket moves to the specified connect state.
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bool CheckConnState(AsyncPacketSocket::State state);
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// Checks that the socket is connected to the remote side.
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bool CheckConnected() {
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return CheckConnState(AsyncPacketSocket::STATE_CONNECTED);
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}
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// Sends using the clients socket.
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int Send(const char* buf, size_t size);
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// Sends using the clients socket to the given destination.
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int SendTo(const char* buf, size_t size, const SocketAddress& dest);
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// Returns the next packet received by the client or 0 if none is received
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// within the specified timeout. The caller must delete the packet
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// when done with it.
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Packet* NextPacket(int timeout_ms);
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// Checks that the next packet has the given contents. Returns the remote
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// address that the packet was sent from.
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bool CheckNextPacket(const char* buf, size_t len, SocketAddress* addr);
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// Checks that no packets have arrived or will arrive in the next second.
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bool CheckNoPacket();
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int GetError();
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int SetOption(Socket::Option opt, int value);
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bool ready_to_send() const { return ready_to_send_count() > 0; }
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// How many times SignalReadyToSend has been fired.
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int ready_to_send_count() const { return ready_to_send_count_; }
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private:
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// Timeout for reads when no packet is expected.
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static const int kNoPacketTimeoutMs = 1000;
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// Workaround for the fact that AsyncPacketSocket::GetConnState doesn't exist.
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Socket::ConnState GetState();
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// Slot for packets read on the socket.
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void OnPacket(AsyncPacketSocket* socket, const char* buf, size_t len,
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const SocketAddress& remote_addr,
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const PacketTime& packet_time);
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void OnReadyToSend(AsyncPacketSocket* socket);
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bool CheckTimestamp(int64_t packet_timestamp);
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CriticalSection crit_;
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AsyncPacketSocket* socket_;
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std::vector<Packet*>* packets_;
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int ready_to_send_count_ = 0;
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int64_t prev_packet_timestamp_;
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RTC_DISALLOW_COPY_AND_ASSIGN(TestClient);
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};
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} // namespace rtc
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#endif // WEBRTC_BASE_TESTCLIENT_H_
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