text: //
  // os/posix/timer.h: Functions for obtaining the system clock time.
  //
  // CEN64: Cycle-Accurate Nintendo 64 Emulator.
  // Copyright (C) 2015, Tyler J. Stachecki.
  //
  // This file is subject to the terms and conditions defined in
  // 'LICENSE', which is part of this source code package.
  //
  
  #ifndef CEN64_OS_POSIX_TIMER
  #define CEN64_OS_POSIX_TIMER
  #include "common.h"
  
  #define NS_PER_SEC 1000000000ULL
  
  #if defined(CLOCK_MONOTONIC_PRECISE)
  #define GETTIME_SOURCE CLOCK_MONOTONIC_PRECISE
  #else
  #define GETTIME_SOURCE CLOCK_MONOTONIC_RAW
  #endif
  
  #ifdef __APPLE__
  #include <time.h>
  typedef struct timeval cen64_time;
  
  #else
  #include <time.h>
  typedef struct timespec cen64_time;
  #endif
  
  cen64_cold unsigned long long compute_time_difference(
    const cen64_time *now, const cen64_time *before);
  
  cen64_cold void get_time(cen64_time *t);
  
  #endif
  
  