DuinOS/libraries/mprintf/mprintf.cpp at master · DuinOS/DuinOS · GitHub

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printf.cpp - a thread safe printf called mprintf

Here is where the mutex is made global and the semaphore is initialized

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#include "mprintf.h"

xSemaphoreHandle pMutex;

void mprintf_init () {

pMutex = xSemaphoreCreateMutex();

if( pMutex != NULL ) {

// The semaphore was created successfully.

printf("could create pMutex semaphore\n");

// The semaphore can now be used.

}

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