1 // Copyright 2013 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
5 #ifndef CHROME_BROWSER_NET_PROBE_MESSAGE_H_
6 #define CHROME_BROWSER_NET_PROBE_MESSAGE_H_
10 #include "base/basictypes.h"
11 #include "base/gtest_prod_util.h"
12 #include "chrome/browser/net/probe_message.pb.h"
14 namespace chrome_browser_net {
16 // Packet format between client and server is defined in probe_message.proto.
21 // Generate a ProbeRequest packet.
22 void GenerateProbeRequest(const ProbePacket_Token& received_token,
25 uint32 pacing_interval_micros,
26 uint32 number_probe_packets,
28 // Make an encoded packet (string) from a ProbePacket object.
29 std::string MakeEncodedPacket(const ProbePacket& packet) const;
30 // Fill some common fields in the packet header.
31 void SetPacketHeader(ProbePacket_Type packet_type,
32 ProbePacket* probe_packet) const;
33 // Parse the input string (which is an encoded packet) and save the result to
34 // packet. Return true if there is no error and false otherwise.
35 bool ParseInput(const std::string& input, ProbePacket* packet) const;
39 friend class ProbeMessageTest;
40 FRIEND_TEST_ALL_PREFIXES(ProbeMessageTest, TestChecksum);
41 FRIEND_TEST_ALL_PREFIXES(ProbeMessageTest, TestEncode);
42 FRIEND_TEST_ALL_PREFIXES(ProbeMessageTest, TestGenerateProbeRequest);
43 FRIEND_TEST_ALL_PREFIXES(ProbeMessageTest, TestSetPacketHeader);
45 // Compute the checksum of the padding string.
46 uint32 Checksum(const std::string& str) const;
48 // Encode the packet with kEncodingString. This is also used for decoding.
49 std::string Encode(const std::string& input) const;
51 static const uint32 kVersion;
52 static const uint32 kMaxNumberProbePackets;
53 static const uint32 kMaxProbePacketBytes;
54 static const uint32 kMaxPacingIntervalMicros;
55 static const char kEncodingString[];
57 DISALLOW_COPY_AND_ASSIGN(ProbeMessage);
59 } // namespace chrome_browser_net
60 #endif // CHROME_BROWSER_NET_PROBE_MESSAGE_H_