summaryrefslogtreecommitdiffstats
path: root/src/bridge.h
blob: 0bae0079a3298b07ca3fab9577abdf4f2c8f43ca (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
/*
   Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009 Her Majesty the
   Queen in Right of Canada (Communications Research Center Canada)
   */
/*
   This file is part of ODR-DabMux.

   ODR-DabMux is free software: you can redistribute it and/or modify
   it under the terms of the GNU General Public License as
   published by the Free Software Foundation, either version 3 of the
   License, or (at your option) any later version.

   ODR-DabMux is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   GNU General Public License for more details.

   You should have received a copy of the GNU General Public License
   along with ODR-DabMux.  If not, see <http://www.gnu.org/licenses/>.
   */

#ifndef _BRIDGE
#define _BRIDGE

#ifdef HAVE_CONFIG_H
#   include "config.h"
#endif

#include <stdio.h>


#ifdef __cplusplus
extern "C" {
#endif

#ifdef _WIN32
#  ifdef _DEBUG
     extern int bridgeVerbosity;
#  endif // _DEBUG
#else
#  ifndef DEBUG
#   ifndef NDEBUG
#    define NDEBUG
#   endif
#  else
     extern int bridgeVerbosity;
#  endif // DEBUG
#endif // _WIN32

struct bridgeStats {
	unsigned long frames;		// Number of frames analyzed
	unsigned long valids;		// Nb of frames with a good magic number
	unsigned long invalids;		// Nb of frames with a good magic number
	unsigned long bytes;		// Nb of data bytes
	unsigned long packets;		// Nb of packets found
	unsigned long errors;
	unsigned long missings;
	unsigned long dropped;
	unsigned long crc;		// Nb of crc errors
	unsigned long overruns;		// Nb of packet too big
};


struct bridgeHdr {
    unsigned short size;
    unsigned short seqNb;
    unsigned short crc;
};


struct bridgeInfo {
    // Tx
    int transmitted;        // Nb bytes written
    int offset;             // Offset of the next byte to write
    // Rx
    int received;
    int pos;
    int state;
    unsigned short lastSeq;
    unsigned short sync;
    char initSeq;
    // General
    struct bridgeHdr header;
    struct bridgeStats stats;
};



void dump(void* data, int size, FILE* stream);

/*
 * Example of usae:
 * if (data.length == 0)
 *     read(data)
 * while (writePacket() != 0)
 *     read(read)
 * ...
 */
int writePacket(void* dataIn, int sizeIn, void* dataOut, int sizeOut, struct bridgeInfo* info);

int getPacket(void* dataIn, int sizeIn, void* dataOut, int sizeOut, struct bridgeInfo* info, char async);

void bridgeInitInfo(struct bridgeInfo* info);
struct bridgeStats getStats(struct bridgeInfo* info);
void resetStats(struct bridgeInfo* info);
void printStats(struct bridgeInfo* info, FILE* out);

#ifdef __cplusplus
}
#endif

#endif // _BRIDGE