libtins  4.0
data_tracker.h
1 /*
2  * Copyright (c) 2017, Matias Fontanini
3  * All rights reserved.
4  *
5  * Redistribution and use in source and binary forms, with or without
6  * modification, are permitted provided that the following conditions are
7  * met:
8  *
9  * * Redistributions of source code must retain the above copyright
10  * notice, this list of conditions and the following disclaimer.
11  * * Redistributions in binary form must reproduce the above
12  * copyright notice, this list of conditions and the following disclaimer
13  * in the documentation and/or other materials provided with the
14  * distribution.
15  *
16  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
17  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
18  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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22  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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29 
30 #ifndef TINS_TCP_IP_DATA_TRACKER_H
31 #define TINS_TCP_IP_DATA_TRACKER_H
32 
33 #include <vector>
34 #include <map>
35 #include <stdint.h>
36 #include <tins/config.h>
37 #include <tins/macros.h>
38 
39 #ifdef TINS_HAVE_TCPIP
40 
41 namespace Tins {
42 namespace TCPIP {
43 
50 class TINS_API DataTracker {
51 public:
55  typedef std::vector<uint8_t> payload_type;
56 
60  typedef std::map<uint32_t, payload_type> buffered_payload_type;
61 
65  DataTracker();
66 
72  DataTracker(uint32_t seq_number);
73 
88  bool process_payload(uint32_t seq, payload_type payload);
89 
111  void advance_sequence(uint32_t seq);
112 
116  uint32_t sequence_number() const;
117 
121  void sequence_number(uint32_t seq);
122 
126  const payload_type& payload() const;
127 
131  payload_type& payload();
132 
136  const buffered_payload_type& buffered_payload() const;
137 
141  buffered_payload_type& buffered_payload();
142 
146  uint32_t total_buffered_bytes() const;
147 private:
148  void store_payload(uint32_t seq, payload_type payload);
149  buffered_payload_type::iterator erase_iterator(buffered_payload_type::iterator iter);
150 
151  payload_type payload_;
152  buffered_payload_type buffered_payload_;
153  uint32_t seq_number_;
154  uint32_t total_buffered_bytes_;
155 };
156 
157 } // TCPIP
158 } // Tins
159 
160 #endif // TINS_HAVE_TCPIP
161 
162 #endif // TINS_TCP_IP_DATA_TRACKER_H
The Tins namespace.
Definition: address_range.h:38