FreeCalypso > hg > themwi-system-sw
annotate sip-in/call_list.c @ 123:a36b731bfef9
sip-manual-out: implement sending BYE and CANCEL
author | Mychaela Falconia <falcon@freecalypso.org> |
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date | Thu, 29 Sep 2022 17:21:11 -0800 |
parents | 6aa63cf4620a |
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1 /* |
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2 * In this module we implement call list management for themwi-sip-in. |
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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/socket.h> |
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7 #include <sys/time.h> |
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8 #include <netinet/in.h> |
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9 #include <stdio.h> |
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10 #include <stdint.h> |
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11 #include <stdlib.h> |
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12 #include <string.h> |
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13 #include <strings.h> |
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14 #include <syslog.h> |
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15 #include "call.h" |
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16 |
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17 struct call *call_list; |
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18 |
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19 struct call * |
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20 find_call_by_sip_id(sought_id) |
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21 char *sought_id; |
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22 { |
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23 struct call *call; |
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24 |
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25 for (call = call_list; call; call = call->next) |
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26 if (!strcmp(call->sip_call_id, sought_id)) |
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27 return call; |
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28 return 0; |
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29 } |
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30 |
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31 struct call * |
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32 find_call_by_mncc_callref(callref) |
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33 uint32_t callref; |
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34 { |
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35 struct call *call; |
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36 |
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37 for (call = call_list; call; call = call->next) |
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38 if (call->mncc_state && call->mncc_callref == callref) |
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39 return call; |
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40 return 0; |
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41 } |
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42 |
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43 allocate_mncc_callref(call) |
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44 struct call *call; |
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45 { |
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46 static uint32_t next_callref; |
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47 |
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48 for (;;) { |
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49 next_callref++; |
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50 if (!find_call_by_mncc_callref(next_callref)) { |
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51 call->mncc_callref = next_callref; |
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52 return(0); |
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53 } |
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54 } |
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55 } |
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56 |
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57 void |
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58 scan_call_list_for_timeouts(retrans, dead_sip_flag, dead_sip_time) |
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59 int *retrans, *dead_sip_flag; |
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60 time_t *dead_sip_time; |
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61 { |
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62 struct call *call; |
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63 int got_dead_sip = 0; |
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64 |
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65 for (call = call_list; call; call = call->next) { |
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66 switch (call->sip_state) { |
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67 case SIP_STATE_RINGING_REL: |
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68 case SIP_STATE_INVITE_200: |
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69 case SIP_STATE_INVITE_ERR: |
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70 case SIP_STATE_BYE_SENT: |
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71 *retrans = 1; |
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72 break; |
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73 case SIP_STATE_ENDED: |
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74 case SIP_STATE_MSG_SIZE_ERR: |
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75 if (call->overall_state != OVERALL_STATE_DEAD_SIP) |
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76 continue; |
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77 if (got_dead_sip) { |
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78 if (call->sip_clear_time < *dead_sip_time) |
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79 *dead_sip_time = call->sip_clear_time; |
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80 } else { |
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81 got_dead_sip = 1; |
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82 *dead_sip_flag = 1; |
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83 *dead_sip_time = call->sip_clear_time; |
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84 } |
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85 } |
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86 } |
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87 } |