MQX 3.7 Proper Task Create-Destroy Method

Tim562 — Fri, 13 Jan 2012 06:27:34 GMT

Hi All,

I'm pretty new to MQX and would like to confirm that I have the right idea when it comes to dynamically creating and destroying tasks to perform transitory jobs that might be blocking in nature (or require a lot of time to complete).

Question 1: Is it proper to call _task_destroy() from within the child Task function I want to destroy (as in code example below) or do I need to do this from the parent function that created the task?

Question 2: If allowed to call _task_destroy() from within the child task I want to terminate, which is the better/proper way to do it: _task_destroy(_task_get_id()); or _task_destroy(MQX_NULL_TASK_ID); ?

This simplified example code seems to work as I intend I would just like to confirm that I'm doing things the "MQX" way, Thanks!

TASK_TEMPLATE_STRUCT MQX_template_list[] ={/*Task number, EntryPoint, Stack, Pri, String, Auto?                */  {MAIN_TASK,  MAIN_task,  5000,  9,   "main",  MQX_AUTO_START_TASK},  {TEMP_TASK,  My_Task,    5000,  9,   "mtask", 0},  {0,          0,          0,     0,    0,      0}};void MAIN_task(uint_32 initial_data)   {   boolean bNeedTask = 0;   _task_id tiNewTaskID;   if(bNeed_Task == 1)      {      tiNewTaskID = _task_create(0, TEMP_TASK, 0);      if(tiNewTaskID == MQX_NULL_TASK_ID)         {         //Log Error...         }      bNeed_Task = 0;      }// Do Stuff Here....   }void my_task(uint_32 initial_data)   {   //Do something here....   _task_destroy( _task_get_id() ); //Which way is better/proper??// _task_destroy(MQX_NULL_TASK_ID); //   return;   }

Re: MQX 3.7 Proper Task Create-Destroy Method

c0170 — Fri, 13 Jan 2012 18:10:06 GMT

Hi Tim562,

Answers to your questions,

1. It is proper to call call_task_destroy or simple return from the function and it will be destroyed.

2. _task_destroy(MQX_NULL_TASK_ID)

Regards,

MartinK

Re: MQX 3.7 Proper Task Create-Destroy Method

Tim562 — Sat, 14 Jan 2012 00:57:49 GMT

Thank you Kojto, I appreciate your reply.

~Tim

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MQX 3.7 Proper Task Create-Destroy Method

Re: MQX 3.7 Proper Task Create-Destroy Method

Re: MQX 3.7 Proper Task Create-Destroy Method