FreeCalypso > hg > themwi-system-sw
annotate mgw/main.c @ 169:648a64b2e16b
mgw: accept Themyscira-extension RTP BFI packets
author | Mychaela Falconia <falcon@freecalypso.org> |
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date | Sat, 19 Nov 2022 23:08:49 -0800 |
parents | f062c32a5116 |
children | a6eb2de277f6 |
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1 /* |
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2 * Main module for themwi-mgw. |
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3 */ |
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4 |
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5 #include <sys/types.h> |
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6 #include <sys/time.h> |
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7 #include <sys/errno.h> |
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8 #include <stdio.h> |
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9 #include <stdint.h> |
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10 #include <stdlib.h> |
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11 #include <string.h> |
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12 #include <strings.h> |
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13 #include <signal.h> |
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14 #include <syslog.h> |
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15 #include <unistd.h> |
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16 |
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17 extern int dtmf_timer_running; |
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18 extern struct timeval dtmf_next_time; |
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19 |
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20 fd_set select_for_read; |
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21 void (*select_handlers[FD_SETSIZE])(); |
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22 void *select_data[FD_SETSIZE]; |
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23 struct timeval cur_event_time; |
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24 |
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25 static int max_fd; |
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26 |
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27 update_max_fd(newfd) |
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28 { |
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29 if (newfd >= FD_SETSIZE) { |
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30 syslog(LOG_CRIT, "FATAL: file descriptor %d >= FD_SETSIZE", |
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31 newfd); |
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32 exit(1); |
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33 } |
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34 if (newfd > max_fd) |
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35 max_fd = newfd; |
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36 } |
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37 |
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38 main(argc, argv) |
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39 char **argv; |
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40 { |
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41 fd_set fds; |
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42 struct timeval timeout; |
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43 int cc, i; |
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44 |
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45 openlog("themwi-mgw", 0, LOG_LOCAL5); |
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46 read_config_file(); |
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47 dtmf_init_sample_arrays(); |
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48 if (create_ctrl_socket() < 0) { |
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49 fprintf(stderr, "error creating TMGW control socket\n"); |
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50 exit(1); |
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51 } |
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52 signal(SIGPIPE, SIG_IGN); |
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53 /* main select loop */ |
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54 for (;;) { |
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55 bcopy(&select_for_read, &fds, sizeof(fd_set)); |
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56 if (dtmf_timer_running) { |
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57 if (timercmp(&dtmf_next_time, &cur_event_time, >)) |
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58 timersub(&dtmf_next_time, &cur_event_time, |
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59 &timeout); |
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60 else |
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61 timerclear(&timeout); |
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62 cc = select(max_fd+1, &fds, 0, 0, &timeout); |
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63 } else |
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64 cc = select(max_fd+1, &fds, 0, 0, 0); |
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65 if (cc < 0) { |
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66 if (errno == EINTR) |
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67 continue; |
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68 syslog(LOG_CRIT, "select: %m"); |
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69 exit(1); |
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70 } |
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71 gettimeofday(&cur_event_time, 0); |
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72 for (i = 0; cc && i <= max_fd; i++) { |
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73 if (FD_ISSET(i, &fds)) { |
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74 select_handlers[i](i, select_data[i]); |
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75 cc--; |
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76 } |
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77 } |
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78 if (dtmf_timer_running && |
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79 !timercmp(&cur_event_time, &dtmf_next_time, <)) |
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80 dtmf_timer_process(); |
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81 free_deleted_endpoints(); |
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82 } |
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83 } |