mutex.c

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#include <includes.h>

#ifndef __VERSION_0_1__
#warning RangerOS mismatch, expected v0.1. 
#endif

void mutex_lock(MUTEX* mutex_ptr){
  while (mutex_check(mutex_ptr)){} //block until mutex is unlocked
  *mutex_ptr = 1; //locked
}

void mutex_unlock(MUTEX* mutex_ptr){
  *mutex_ptr = 0; //unlocked
}

int mutex_check(MUTEX* mutex_ptr){
  return *mutex_ptr;
}