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annotate rvinterf/rvtdump.c @ 134:e0d56e9be8a2

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rvtdump: time-stamped logging implemented
author Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
date Sat, 02 Nov 2013 23:15:42 +0000
parents 56b53c289785
children e01e3a60c858
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1 /*
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2 * This program reads bytes from a serial port, parses them assuming
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3 * TI's RVT MUX format, and prints every decoded packet.
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4 */
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5
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6 #include <sys/types.h>
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7 #include <sys/errno.h>
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8 #include <stdio.h>
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9 #include <stdlib.h>
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10 #include <unistd.h>
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11 #include <time.h>
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12
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13 extern int target_fd;
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14 extern char *baudrate_name;
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15
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16 extern char pr_item[];
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17
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18 char *logfname;
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19 FILE *logF;
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20 time_t logtime;
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21
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22 main(argc, argv)
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23 char **argv;
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24 {
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25 extern char *optarg;
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26 extern int optind;
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27 int c;
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28 fd_set fds;
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29
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30 while ((c = getopt(argc, argv, "b:d:l:")) != EOF)
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31 switch (c) {
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32 case 'b':
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33 baudrate_name = optarg;
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34 continue;
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35 case 'd':
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36 target_fd = atoi(optarg);
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37 continue;
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38 case 'l':
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39 logfname = optarg;
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40 continue;
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41 case '?':
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42 default:
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43 usage: fprintf(stderr,
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44 "usage: %s [-b baudrate] ttyport\n", argv[0]);
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45 exit(1);
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46 }
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47 if (target_fd <= 0) {
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48 if (argc - optind != 1)
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49 goto usage;
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50 open_target_serial(argv[optind]);
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51 }
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52
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53 set_serial_nonblock(0);
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54 setlinebuf(stdout);
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55 if (logfname) {
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56 logF = fopen(logfname, "w");
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57 if (!logF) {
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58 perror(logfname);
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59 exit(1);
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60 }
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61 fprintf(logF, "*** Log of decoded RVT output ***\n");
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62 setlinebuf(logF);
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63 }
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64 for (;;) {
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65 FD_ZERO(&fds);
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66 FD_SET(target_fd, &fds);
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67 c = select(target_fd+1, &fds, 0, 0, 0);
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68 time(&logtime);
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69 if (c < 0) {
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70 if (errno == EINTR)
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71 continue;
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72 perror("select");
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73 exit(1);
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74 }
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75 if (FD_ISSET(target_fd, &fds))
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76 process_serial_rx();
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77 }
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78 }
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79
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80 handle_rx_packet()
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81 {
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82 print_rx_packet();
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83 }
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84
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85 print_item()
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86 {
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87 printf("%s\n", pr_item);
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88 if (logF)
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89 log_item();
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90 }