CMSIS Example - osMessageQ osMessagePut osMessageGet

#include "cmsis_os.h"

void Thread0( void * arg);
void Thread1( void * arg);

osThreadDef( Thread0, Thread0, osPriorityNormal, 512 );
osThreadDef( Thread1, Thread1, osPriorityAboveNormal, 512 );

osMessageQDef(_thread0_MsgQ, 100 );
osMessageQId thread0_MsgQ;

osMessageQDef(_thread1_MsgQ, 100 );
osMessageQId thread1_MsgQ;

void Thread0( void * arg)
{
  osEvent event;
  while(1)
  {
    event = osMessageGet(thread0_MsgQ, osWaitForever );
    if ( event.status == osOK)
      osMessagePut( thread1_MsgQ, event.value.v+1, osWaitForever );

    osDelay( 100 );
  }
}

void Thread1( void * arg)
{
  osEvent event;
  osMessagePut( thread0_MsgQ, 0, 1000 );

  while(1)
  {
    event = osMessageGet(thread1_MsgQ, osWaitForever );
    if ( event.status == osOK)
      osMessagePut( thread0_MsgQ, event.value.v+1, osWaitForever );

    osDelay( 50 );
  }
}

int main( void )
{
  osKernelInitialize();

  thread0_MsgQ = osMessageCreate( osMessageQ(_thread0_MsgQ), 0 );
  thread1_MsgQ = osMessageCreate( osMessageQ(_thread1_MsgQ), 0 );

  osThreadCreate( osThread(Thread0), (void *)100 );
  osThreadCreate( osThread(Thread1), (void *)200 );

  osKernelStart();

  return 0;
}