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annotate sip-in/call_clear.c @ 221:e1d7db9d734c

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smpp-test2 program written
author Mychaela Falconia <falcon@freecalypso.org>
date Thu, 03 Aug 2023 10:00:33 -0800
parents 3a1f0e13a3ac
children
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9b87894704eb sip-in: first step toward final call clearing
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1 /*
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2 * In this module we implement final clearing of calls, i.e., freeing
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3 * of struct call, and all preliminary steps that need to happen
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4 * toward this ultimate end state.
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5 */
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6
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7 #include <sys/types.h>
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8 #include <sys/socket.h>
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9 #include <sys/time.h>
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10 #include <netinet/in.h>
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11 #include <stdio.h>
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12 #include <stdint.h>
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13 #include <stdlib.h>
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14 #include <string.h>
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15 #include <strings.h>
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16 #include <syslog.h>
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17 #include "call.h"
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18
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19 extern struct call *call_list;
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20 extern struct timeval cur_event_time;
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21
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22 void
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23 sip_mark_end_time(call, linger)
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24 struct call *call;
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25 unsigned linger;
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26 {
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27 call->sip_clear_time = cur_event_time.tv_sec + linger;
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28 }
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29
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30 void
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31 transition_dead_sip(call)
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32 struct call *call;
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33 {
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34 if (call->overall_state != OVERALL_STATE_TEARDOWN)
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35 return;
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36 if (call->sip_state != SIP_STATE_ENDED &&
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37 call->sip_state != SIP_STATE_MSG_SIZE_ERR)
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38 return;
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39 if (call->mncc_state != MNCC_STATE_NO_EXIST)
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40 return;
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41 if (call->mgw_state != MGW_STATE_NO_EXIST)
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42 return;
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43 if (call->mgw_xact)
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44 return;
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45 call->overall_state = OVERALL_STATE_DEAD_SIP;
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46 }
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47
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48 void
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49 clear_dead_sip_calls()
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50 {
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51 struct call *call, **pp;
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52
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53 for (pp = &call_list; *pp; ) {
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54 call = *pp;
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55 if (call->overall_state == OVERALL_STATE_DEAD_SIP &&
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56 cur_event_time.tv_sec >= call->sip_clear_time) {
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57 *pp = call->next;
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58 syslog(LOG_INFO, "Call in%06u finished",
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59 call->in_tag_num);
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60 free(call);
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61 continue;
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62 }
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63 pp = &call->next;
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64 }
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65 }