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comparison rvinterf/rvtdump.c @ 169:e01e3a60c858

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rvinterf: background mode implemented
author Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
date Wed, 20 Nov 2013 02:58:35 +0000
parents e0d56e9be8a2
children 4d8e4c58df71
comparison
equal deleted inserted replaced
168:60afcd233b04 169:e01e3a60c858
16 extern char pr_item[]; 16 extern char pr_item[];
17 17
18 char *logfname; 18 char *logfname;
19 FILE *logF; 19 FILE *logF;
20 time_t logtime; 20 time_t logtime;
21 int background;
21 22
22 main(argc, argv) 23 main(argc, argv)
23 char **argv; 24 char **argv;
24 { 25 {
25 extern char *optarg; 26 extern char *optarg;
26 extern int optind; 27 extern int optind;
27 int c; 28 int c;
28 fd_set fds; 29 fd_set fds;
29 30
30 while ((c = getopt(argc, argv, "b:d:l:")) != EOF) 31 while ((c = getopt(argc, argv, "bB:d:l:")) != EOF)
31 switch (c) { 32 switch (c) {
32 case 'b': 33 case 'b':
34 background++;
35 continue;
36 case 'B':
33 baudrate_name = optarg; 37 baudrate_name = optarg;
34 continue; 38 continue;
35 case 'd': 39 case 'd':
36 target_fd = atoi(optarg); 40 target_fd = atoi(optarg);
37 continue; 41 continue;
39 logfname = optarg; 43 logfname = optarg;
40 continue; 44 continue;
41 case '?': 45 case '?':
42 default: 46 default:
43 usage: fprintf(stderr, 47 usage: fprintf(stderr,
44 "usage: %s [-b baudrate] ttyport\n", argv[0]); 48 "usage: %s [options] ttyport\n", argv[0]);
45 exit(1); 49 exit(1);
46 } 50 }
51 if (background && !logfname) {
52 fprintf(stderr, "%s: -b is meaningless without -l\n", argv[0]);
53 exit(1);
54 }
47 if (target_fd <= 0) { 55 if (target_fd <= 0) {
48 if (argc - optind != 1) 56 if (argc - optind != 1)
49 goto usage; 57 goto usage;
50 open_target_serial(argv[optind]); 58 open_target_serial(argv[optind]);
51 } 59 }
58 perror(logfname); 66 perror(logfname);
59 exit(1); 67 exit(1);
60 } 68 }
61 fprintf(logF, "*** Log of decoded RVT output ***\n"); 69 fprintf(logF, "*** Log of decoded RVT output ***\n");
62 setlinebuf(logF); 70 setlinebuf(logF);
71 }
72 if (background) {
73 c = fork();
74 if (c < 0) {
75 perror("fork");
76 exit(1);
77 }
78 if (c) {
79 printf("rvtdump forked into background (pid %d)\n", c);
80 exit(0);
81 }
63 } 82 }
64 for (;;) { 83 for (;;) {
65 FD_ZERO(&fds); 84 FD_ZERO(&fds);
66 FD_SET(target_fd, &fds); 85 FD_SET(target_fd, &fds);
67 c = select(target_fd+1, &fds, 0, 0, 0); 86 c = select(target_fd+1, &fds, 0, 0, 0);
82 print_rx_packet(); 101 print_rx_packet();
83 } 102 }
84 103
85 print_item() 104 print_item()
86 { 105 {
87 printf("%s\n", pr_item); 106 if (!background)
107 printf("%s\n", pr_item);
88 if (logF) 108 if (logF)
89 log_item(); 109 log_item();
90 } 110 }