* pbx.c

• ast_cdr_start(c->cdr);
  • ast_pbx_run
    • pbx_thread
      • ast_pbx_start
        • ast_async_goto
          • ast_async_goto_by_name
        • ast_pbx_outgoing_exten
    • async_wait
      • ast_pbx_outgoing_exten
        
        

* ast_pbx_start

• chan_alsa.c: alsa_new
• chan_iax.c: ast_iax_new
• chan_modem.c: ast_modem_new
• chan_oss.c: oss_new
• chan_phone.c: phone_new
• chan_sip.c: sip_new
• chan_vofr.c: vofr_new
• chan_zap.c: zt_new
  
  

* ast_pbx_run

• chan_zap.c: ss_thread, do_idle_thread
  
  

* manager.c

• ast_pbx_outgoing_exten
  • action_originate
    
    
• ast_async_goto_by_name
  • action_redirect

static struct action {
        char *action;
        int authority;
        int (*func)(struct mansession *s, struct message *m);
} actions[] = {
        { "Ping", 0, action_ping },
        { "Logoff", 0, action_logoff },
        { "Hangup", EVENT_FLAG_CALL, action_hangup },
        { "Status", EVENT_FLAG_CALL, action_status },
        { "Redirect", EVENT_FLAG_CALL, action_redirect },
        { "Originate", EVENT_FLAG_CALL, action_originate },
};

* process_message

• session_do
  • accept_thread
    • init_manager
      • reload_manager
        
        

* loader.c

• reload_manager
  • ast_module_reload
    
    

* asterisk.c

• ast_module_reload
  • hup_handler
    
    

* cli.c

• ast_module_reload
  • handle_reload

static struct ast_cli_entry builtins[] = {
...
{ { "reload", NULL }, handle_reload, "Reload configuration", reload_help },
...
        { { "unload", NULL }, handle_unload, "Unload a dynamic module by name", unload_help, complete_fn },
        { { NULL }, NULL, NULL, NULL }
};

* pbx.c

• int ast_pbx_run(struct ast_channel *c)
  • if (c->amaflags) {
    • if (c->cdr) {
    • } else {
      • c->cdr = ast_cdr_alloc();
      • ast_cdr_init(c->cdr, c);
    • }
  • }
  • if (c->cdr)
    • ast_cdr_start(c->cdr);
      
      
• int pbx_exec(struct ast_channel *c, struct ast_app *app, void *data, int newstack)
  • if (newstack && (res = setjmp(c->jmp++c->stack))) {
  • } else {
    • if (c->cdr)
      • ast_cdr_setapp(c->cdr, app->name, data);
  • }
    
    

* channel.c

• int ast_hangup(struct ast_channel *chan)
  • if (chan->cdr) {
    • ast_cdr_end(chan->cdr);
    • ast_cdr_post(chan->cdr);
    • ast_cdr_free(chan->cdr);
  • }
    
    
• int ast_answer(struct ast_channel *chan)
  • switch(chan->_state) {
  • case AST_STATE_RING:
    • if (chan->cdr)
      • ast_cdr_answer(chan->cdr);
  • }
    
    
• struct ast_frame *ast_read(struct ast_channel *chan)
  • if (!f) {
    • if (chan->cdr)
      • ast_cdr_end(chan->cdr);
  • } else if (chan->deferdtmf && f->frametype == AST_FRAME_DTMF) {
  • } else if ((f->frametype == AST_FRAME_CONTROL) && (f->subclass == AST_CONTROL_ANSWER)) {
    • ast_cdr_answer(chan->cdr);
  • }
    
    

* app_dial.c

• static struct ast_channel *wait_for_answer(struct ast_channel *in, struct localuser *outgoing, int *to, int *allowredir, int *allowdisconnect)
  • ast_cdr_busy(in->cdr);
    
    
• static int dial_exec(struct ast_channel *chan, void *data)
  • ast_cdr_busy(chan->cdr);
  • ast_cdr_setdestchan(chan->cdr, peer->name);
    
    

* app_queue.c

• static struct ast_channel *wait_for_answer(struct ast_channel *in, struct localuser *outgoing, int *to, int *allowredir, int *allowdisconnect, char *queue)
  • ast_cdr_busy(in->cdr);
    
    
• static int try_calling(struct queue_ent *qe, char *options)
  • ast_cdr_busy(qe->chan->cdr);
  • ast_cdr_setdestchan(qe->chan->cdr, peer->name);
    
    

* chan_iax.c

• int set_config(char *config_file, struct sockaddr_in* sin)
  • format = ast_cdr_amaflags2int(v->value);
    
    
• static struct iax_user *build_user(char *name, struct ast_variable *v)
  • format = ast_cdr_amaflags2int(v->value);
    
    

* chan_sip.c

• static struct sip_user *build_user(char *name, struct ast_variable *v)
  • format = ast_cdr_amaflags2int(v->value);
    
    

* chan_zap.c

• static struct ast_channel *zt_request(char *type, int format, void *data)
  • tmp->cdrflags |= AST_CDR_CALLWAIT;
    
    
• int load_module()
  • y = ast_cdr_amaflags2int(v->value);
    
    

* ast_cdr_alloc

• alloc cdr
  
  

* ast_cdr_free

* ast_cdr_init

• channel 에서 필요한 사항을 cdr 로 복사.
• channel 의 상태에 따라 cdr disposition 설정
  
  

* ast_cdr_start

• cdr->start 를 현재시간으로 설정
  
  

* ast_cdr_end

* ast_cdr_setapp

• cdr->lastapp 와 cdr->lastdata 설정
• pbx_exec 에서 이후 application 을 수행함.
• call 에 대해 최종으로 수행된 application 을 아르켜 줌.
  
  

* ast_cdr_answer

• cdr->disposition 을 AST_CDR_ANSWERED 로 설정하고
• cdr->answer 에 현재 시간을 설정.
  
  

* ast_cdr_busy

• cdr->disposition 을 AST_CDR_BUSY 로 설정
  
  

* ast_cdr_post

• cdr->duration 과 cdr->billsec 을 설정하고, i->be(cdr) 을 사용하여 cdr 저장
• duration 은 start 에서 end 이고 billsec 는 answer 에서 end 까지 임.
  
  

* ast_cdr_setdestchan

• cdr->dstchannel 을 설정
  
  

* ast_cdr_amaflags2int

* ast_cdr_disp2str

* ast_cdr_flags2str

* ast_cdr_setaccount

* ast_cdr_end

* ast_cdr_register

* ast_cdr_unregister