Hi - background dev tool info: I'm using CW10.6, MQX 4.1, K70 processor, custom BSP cloned from K70 tower board.
I seem to be having issues when trying to initialize a mutex in my C++ class. I can successfully create a mutex in my main task, however any attempt to create/init a mutex in a C++ class fails and returns !MQX_OK. I tried several examples deom the MQX manuals, and from the forums, but no success. My function (below) is successful if called from main, but unsuccessful if called from my C++ class. I've also tried initializing using a mutex attribute and attribute init:
/***** CODE START *****/
MUTEX_STRUCT_PTR InitMutex()
{
MUTEX_STRUCT newMutex;
// Initialize the mutex
if (_mutex_init(&newMutex, 0) != MQX_OK)
{
printf("Initialize print mutex failed.\n");
_task_block();
}
// Test the new mutex
if (_mutex_lock(&newMutex) == MQX_OK)
{
printf("Mutex lock worked.\n");
}
_mutex_unlock(&newMutex);
return (MUTEX_STRUCT_PTR)&newMutex;
}
/***** CODE END *****/
Then call with
/***** CODE START *****/
MUTEX_STRUCT_PTR m_ptrQueueMutex = InitMutex();
if (m_ptrQueueMutex != NULL)
printf("Got a mutex pointer\n");
/***** CODE END *****/
In main, I get this output:
"Mutex lock worked"
"Got a mutex pointer"
And in my class I get:
"Initialize print mutex failed."
Any help or suggestions will be greatly appreciated.
