MQX Software SolutionsのトピックRe: httpd_server_run(server): How to Stop the task

httpd_server_run(server): How to Stop the task

Mike_d — Thu, 03 Dec 2009 00:55:41 GMT

The TCP/IP task ends up with an "Invalid Task ID" error code when I stop the httpd server task using the code below. I also can't uninstall the tfs driver. Can someone please tell me how I can gracefully shut down these services and bring them back up?

The Task:

void httpd_task(uint_32 initial_data)
{
uint_32 error;

HTTPD_STRUCT *server;
extern const HTTPD_CGI_LINK_STRUCT cgi_lnk_tbl[];
extern const HTTPD_FN_LINK_STRUCT fn_lnk_tbl[];
extern const TFS_DIR_ENTRY tfs_data[];

if ((error = _io_tfs_install("tfs:", tfs_data))) {
printf("\ninstall returned: %08x\n", error);
}

server = httpd_server_init((HTTPD_ROOT_DIR_STRUCT*)root_dir, "\\index.html");
HTTPD_SET_PARAM_CGI_TBL(server, (HTTPD_CGI_LINK_STRUCT*)cgi_lnk_tbl);
//HTTPD_SET_PARAM_FN_TBL(server, (HTTPD_FN_LINK_STRUCT*)fn_lnk_tbl);

httpd_server_run(server);
_task_block();

//This poll mode doesn't work
//while(1)
// httpd_server_poll(server, 1);

}

Killing the Task:

task_id = _task_get_id_from_name("httpd server");
_task_abort(task_id);

   if((error = _io_tfs_uninstall("tfs:")))
       printf("\ntfs uninstall returned: %08x\n", error);

   task_id = _task_get_id_from_name("httpd task");
   _task_abort(task_id);

Message Edited by Mike_d on 2009-12-02 04:57 PM

Re: httpd_server_run(server): How to Stop the task

Mike_d — Thu, 03 Dec 2009 04:53:36 GMT

Oh, and I also need to clean up any left over sessions.

Re: httpd_server_run(server): How to Stop the task

PetrM — Mon, 07 Dec 2009 23:14:19 GMT

Hello,

you should use _io_dev_uninstall ("tfs:") to uninstal TFS.

HTTPD server can be shut down using httpd_release() function.

There is also some free function for the sessions.

Regards,

PetrM

Re: httpd_server_run(server): How to Stop the task

eEjeremy — Fri, 11 Dec 2009 09:07:19 GMT

Can I ask why you are doing this? I'm considering doing the same because i'm also using SMTP, and if I attempt to access the web server while sending an email bad things happen.

Re: httpd_server_run(server): How to Stop the task

dspNeil — Wed, 02 May 2012 03:50:18 GMT

Calling httpd_server_stop() leaves a task called "httpd server" running, and the associated "httpd session" tasks. What are the proper function calls to gracefully terminate these tasks? Calling _task_abort() causes the system to crash.

Re: httpd_server_run(server): How to Stop the task

Luis_Garabo — Wed, 02 May 2012 23:32:46 GMT

The httpd_release() function from the file C:\Program Files\Freescale\Freescale MQX 3.7\rtcs\source\httpd\httpd.c should be replaced with the code bellow:

_mqx_int httpd_release(HTTPD_STRUCT *server) {

_mqx_int res = 0;

if (server->run == 0 && server) {

shutdown(server->sock, FLAG_ABORT_CONNECTION);

memset(server->params, 0, sizeof(HTTPD_PARAMS_STRUCT));

_task_destroy(_task_get_id_from_name("httpd server"));

}

else

res = -1;

return res;

}

After recompile all the libraries.

I am attaching a project for the M52259EVB that shows how to stop and restart the HTTP server.

Re: httpd_server_run(server): How to Stop the task

dspNeil — Thu, 29 Oct 2020 09:04:29 GMT

Thank you. I stumbled upon this solution myself.

However, this does not account for the situation when you have HTTPDCFG_STATIC_TASKS set to 1. If I am using dynamic tasks, than this works well.

Static task launches multiple "httpd session" tasks. How would one go about closing these sessions and terminating the associated tasks? I tried the following before destroying the "httpd server" task, with unsuccessful results:

while (( task_id = _task_get_id_from_name( "httpd session" ))!= MQX_NULL_TASK_ID ) {  _task_abort( task_id );}

Re: httpd_server_run(server): How to Stop the task

dspNeil — Thu, 03 May 2012 00:04:28 GMT

Garabo,

I just had a look at your example, and found a problem. You are calling httpd_server_init() more than once, and using the same variable to store the result. httpd_server_init() calls httpd_init() which allocates memory that is not freed by httpd_server_stop().

Shouldn't httpd_release() also call HTTPD_FREE() ?