模块加载崩溃Astrisk-11.5.1 Confbridge

Question

有什么帮助吗？使用confbridge，conf作为confbridge的方式会议meetme.conf相同 ** ================================ ===================================== Asterisk-11.5.1 Centos6 app_confbridge.c == ================================================== =================

APP: MyConfbridgeCount(Confbridgename,variablename) 
    it will return no of user in conference if conference is created or else zero. 
    Task: Using Dailplan user want to retrive no of user in conference 
    '6050' => 
    1. Verbose(3,"testMyConfbridgeCount") [pbx_config] 
    2. MyConfbridgeCount(4000,count) [pbx_config] 
    3. verbose(3,"== ${count} ====") [pbx_config] 
    ====================================================================== 
    issue:Currently asterisk core dumped as soon as app2 load . 
    I want to load module as after join confbridge by any user , using MyConfbridgeCount() to know no of conference user count . 
    file: app/app_confbrige.c** 
    ========================================================================== 
    partial code of app_confbridge.c: 
    ========================================================================= 

    static const char *const app2 ="MyConfbridgeCount"; 

    static int count_exec(struct ast_channel *chan, const char *data) 
     { 
     int res = 0; 
     struct conference_bridge *conf=NULL; 
     int count; 
     char *localdata; 
     char val[80] = "0"; 

     struct ao2_iterator i; 
     //struct conference_bridge *bridge = NULL; 
     struct conference_bridge tmp; 

     AST_DECLARE_APP_ARGS(args, 
     AST_APP_ARG(confno); 
     AST_APP_ARG(varname); 
     ); 

     ast_verb(3,"\n============Inside count_exec =============\n"); 

     if (ast_strlen_zero(data)) { 
     ast_log(LOG_WARNING, "MyConfbrigeCount requires an argument (conference number)\n"); 
     ast_verb(3, "\n MyConfbrigeCount requires an argument (conference number\n "); 
     return -1; 

     } 

     if (!ao2_container_count(conference_bridges)) { 
     ast_verb(3, "No active conferences."); 
     ast_log(LOG_NOTICE, "No active conferences."); 

     return -1; 
     } 
     if (!(localdata = ast_strdupa(data))){ 

     return -1; 
     } 
     AST_STANDARD_APP_ARGS(args, localdata); 

     ast_copy_string(tmp.name, args.confno, sizeof(tmp.name)); 

     conf = ao2_find(conference_bridges, &tmp, OBJ_POINTER); 

     if (conf) { 
     ao2_lock(conf); 
     count = conf->markedusers; 
     ao2_unlock(conf); 


     }else{ 
     count = 0; 
     } 


     if (!ast_strlen_zero(args.varname)) { 

     snprintf(val, sizeof(val), "%d", count); 
     pbx_builtin_setvar_helper(chan, args.varname, val); 
     } else { 
     if (ast_channel_state(chan)!= AST_STATE_UP) { 
     ast_answer(chan); 
     } 
     res = ast_say_number(chan, count, "",ast_channel_language(chan),(char *) NULL); 
     } 

     return res; 
     } 


     static int load_module(void) 
     { 
     ast_verb(3 ,"==Inside load_module=="); 

     res |= ast_register_application_xml(app2,count_exec); 
     return res; 
     } 
     static int unload_module(void) 
     { 

     res |= ast_unregister_application(app2); 
     return res; 
     } 

     static struct ast_cli_entry cli_confbridge[] = { 
     AST_CLI_DEFINE(count_exec, "MyConfbrigdeCount Show Number of adminUser(s) in Conference."), 
    } 

============core dump================================================= 
    Program terminated with signal 11, Segmentation fault. 
#0 __strlen_ia32() at ../sysdeps/i386/i586/strlen.S:56 
56 cmpb %dh, (%eax) /* is byte NUL? * 
(gdb) bt 
    #0 __strlen_ia32() at ../sysdeps/i386/i586/strlen.S:56 
    #1 0x00c1b4df in _IO_vfprintf_internal (s=0xfffffffe, format=<value optimized out>, ap=<value optimized out>) at vfprintf.c:1641 
    #2 0x00c409f0 in _IO_vsnprintf (string=0x835af1c "\374 -- \n======== inside count_exec == data is at address:[0xbf918b64] data:[nnel)\n", maxlen=<value optimized out>, 
    format=0xbf9175c0 "\374 -- \n======== inside count_exec == data is at address:[%p] data:[%s] ", '=' <repeats 11 times>, "\n", 
    args=0xbf917724 "d\213\221\277\376\377\377\377\213\261\065\b") at vsnprintf.c:120 
    #3 0x081a0f94 in __ast_str_helper (buf=0xbf9176a8, max_len=0, append=0, 
    fmt=0xbf9175c0 "\374 -- \n======== inside count_exec == data is at address:[%p] data:[%s] ", '=' <repeats 11 times>, "\n", 
    ap=0xbf917724 "d\213\221\277\376\377\377\377\213\261\065\b") at strings.c:76 
    #4 0x081b17d0 in ast_str_set_va (buf=0xbf9176a8, max_len=0, 
    fmt=0xbf9175c0 "\374 -- \n======== inside count_exec == data is at address:[%p] data:[%s] ", '=' <repeats 11 times>, "\n", 
    ap=0xbf917724 "d\213\221\277\376\377\377\377\213\261\065\b") at /usr/src/My-asterisk/asterisk-11.5.1/include/asterisk/strings.h:803 
    #5 0x08134a6f in __ast_verbose_ap (file=0xe1ca74 "app_confbridge.c", line=2453, func=0xe20652 "count_exec", level=3, callid=0x0, 
    fmt=0xbf9175c0 "\374 -- \n======== inside count_exec == data is at address:[%p] data:[%s] ", '=' <repeats 11 times>, "\n", 
    ap=0xbf917724 "d\213\221\277\376\377\377\377\213\261\065\b") at logger.c:1818 
    #6 0x08134b0b in __ast_verbose (file=0xe1ca74 "app_confbridge.c", line=2453, func=0xe20652 "count_exec", level=3, 
    fmt=0xe1da30 "\n======== inside count_exec == data is at address:[%p] data:[%s] ", '=' <repeats 11 times>, "\n") at logger.c:1836 
    #7 0x00e09a45 in count_exec (chan=0xe23c18, data=0xfffffffe <Address 0xfffffffe out of bounds>) at app_confbridge.c:2453 
    #8 0x080d40eb in __ast_cli_register (e=0xe23c18, ed=0x0) at cli.c:2118 
    #9 0x080d4459 in ast_cli_register (e=0xe23c18) at cli.c:2178 
    #10 0x080d4482 in ast_cli_register_multiple (e=0xe237a0, len=13) at cli.c:2189 
    #11 0x00e11f7d in load_module() at app_confbridge.c:4771 
    #12 0x0812ba89 in start_resource (mod=0x87fa908) at loader.c:845 
    #13 0x0812c45c in load_resource_list (load_order=0xbf918e90, global_symbols=0, mod_count=0xbf918e88) at loader.c:1045 
    #14 0x0812ca5a in load_modules (preload_only=0) at loader.c:1198 
    #15 0x080895f7 in main (argc=4, argv=0xbf91a3a4) at asterisk.c:4180 

Answer 1

正如我underestand你创建新的应用程序MyConfbridgeCount，对不对？

而你不是voip或C++专家。

如果是这样，推荐的方法是使用GROUP功能来计算通道数之前的通道数。这可以通过纯拨号计划完成。

创建c/C++应用程序需要非常小心的编码和多线程调试（这是极其复杂的事情）。

如果你真的关心什么是你的错误 - 你的错误是发送到printf函数字符串的不正确的地址。