yap-6.3/os/time.c

#include "sysbits.h"

#ifdef SIMICS
#ifdef HAVE_GETRUSAGE
#undef HAVE_GETRUSAGE
#endif
#ifdef HAVE_TIMES
#undef HAVE_TIMES
#endif
#endif /* SIMICS */

#ifdef _WIN32
#if HAVE_GETRUSAGE
#undef HAVE_GETRUSAGE
#endif
#endif

#if HAVE_GETRUSAGE

#if HAVE_SYS_TIMES_H
#include <sys/times.h>
#endif
#if HAVE_SYS_RESOURCE_H
#include <sys/resource.h>
#endif

#if THREADS
#define StartOfTimes (*(LOCAL_ThreadHandle.start_of_timesp))
#define last_time (*(LOCAL_ThreadHandle.last_timep))

#define StartOfTimes_sys (*(LOCAL_ThreadHandle.start_of_times_sysp))
#define last_time_sys (*(LOCAL_ThreadHandle.last_time_sysp))

#else
/* since the point YAP was started */
static struct timeval StartOfTimes;

/* since last call to runtime */
static struct timeval last_time;

/* same for system time */
static struct timeval last_time_sys;
static struct timeval StartOfTimes_sys;
#endif

/* store user time in this variable */
void Yap_InitTime(int wid) {
  struct rusage rusage;

#if THREADS
  REMOTE_ThreadHandle(wid).start_of_timesp =
      (struct timeval *)malloc(sizeof(struct timeval));
  REMOTE_ThreadHandle(wid).last_timep =
      (struct timeval *)malloc(sizeof(struct timeval));
  REMOTE_ThreadHandle(wid).start_of_times_sysp =
      (struct timeval *)malloc(sizeof(struct timeval));
  REMOTE_ThreadHandle(wid).last_time_sysp =
      (struct timeval *)malloc(sizeof(struct timeval));
  getrusage(RUSAGE_SELF, &rusage);
  (*REMOTE_ThreadHandle(wid).last_timep).tv_sec =
      (*REMOTE_ThreadHandle(wid).start_of_timesp).tv_sec =
          rusage.ru_utime.tv_sec;
  (*REMOTE_ThreadHandle(wid).last_timep).tv_usec =
      (*REMOTE_ThreadHandle(wid).start_of_timesp).tv_usec =
          rusage.ru_utime.tv_usec;
  (*REMOTE_ThreadHandle(wid).last_time_sysp).tv_sec =
      (*REMOTE_ThreadHandle(wid).start_of_times_sysp).tv_sec =
          rusage.ru_stime.tv_sec;
  (*REMOTE_ThreadHandle(wid).last_time_sysp).tv_usec =
      (*REMOTE_ThreadHandle(wid).start_of_times_sysp).tv_usec =
          rusage.ru_stime.tv_usec;
#else
  getrusage(RUSAGE_SELF, &rusage);
  last_time.tv_sec = StartOfTimes.tv_sec = rusage.ru_utime.tv_sec;
  last_time.tv_usec = StartOfTimes.tv_usec = rusage.ru_utime.tv_usec;
  last_time_sys.tv_sec = StartOfTimes_sys.tv_sec = rusage.ru_stime.tv_sec;
  last_time_sys.tv_usec = StartOfTimes_sys.tv_usec = rusage.ru_stime.tv_usec;
#endif
}

UInt Yap_cputime(void) {
  CACHE_REGS
  struct rusage rusage;

  getrusage(RUSAGE_SELF, &rusage);
  return ((rusage.ru_utime.tv_sec - StartOfTimes.tv_sec)) * 1000 +
         ((rusage.ru_utime.tv_usec - StartOfTimes.tv_usec) / 1000);
}

void Yap_cputime_interval(Int *now, Int *interval) {
  CACHE_REGS
  struct rusage rusage;

  getrusage(RUSAGE_SELF, &rusage);
  *now = (rusage.ru_utime.tv_sec - StartOfTimes.tv_sec) * 1000 +
         (rusage.ru_utime.tv_usec - StartOfTimes.tv_usec) / 1000;
  *interval = (rusage.ru_utime.tv_sec - last_time.tv_sec) * 1000 +
              (rusage.ru_utime.tv_usec - last_time.tv_usec) / 1000;
  last_time.tv_usec = rusage.ru_utime.tv_usec;
  last_time.tv_sec = rusage.ru_utime.tv_sec;
}

void Yap_systime_interval(Int *now, Int *interval) {
  CACHE_REGS
  struct rusage rusage;

  getrusage(RUSAGE_SELF, &rusage);
  *now = (rusage.ru_stime.tv_sec - StartOfTimes_sys.tv_sec) * 1000 +
         (rusage.ru_stime.tv_usec - StartOfTimes_sys.tv_usec) / 1000;
  *interval = (rusage.ru_stime.tv_sec - last_time_sys.tv_sec) * 1000 +
              (rusage.ru_stime.tv_usec - last_time_sys.tv_usec) / 1000;
  last_time_sys.tv_usec = rusage.ru_stime.tv_usec;
  last_time_sys.tv_sec = rusage.ru_stime.tv_sec;
}

#elif defined(_WIN32)

#ifdef __GNUC__

/* This is stolen from the Linux kernel.
   The problem is that mingw32 does not seem to have acces to div */
#ifndef do_div
#define do_div(n, base)                                                        \
  ({                                                                           \
    unsigned long __upper, __low, __high, __mod;                               \
    asm("" : "=a"(__low), "=d"(__high) : "A"(n));                              \
    __upper = __high;                                                          \
    if (__high) {                                                              \
      __upper = __high % (base);                                               \
      __high = __high / (base);                                                \
    }                                                                          \
    asm("divl %2"                                                              \
        : "=a"(__low), "=d"(__mod)                                             \
        : "rm"(base), "0"(__low), "1"(__upper));                               \
    asm("" : "=A"(n) : "a"(__low), "d"(__high));                               \
    __mod;                                                                     \
  })
#endif

#endif

#include <time.h>

static FILETIME StartOfTimes, last_time;

static FILETIME StartOfTimes_sys, last_time_sys;

static clock_t TimesStartOfTimes, Times_last_time;

/* store user time in this variable */
void Yap_InitTime(int wid) {
  HANDLE hProcess = GetCurrentProcess();
  FILETIME CreationTime, ExitTime, KernelTime, UserTime;
  if (!GetProcessTimes(hProcess, &CreationTime, &ExitTime, &KernelTime,
                       &UserTime)) {
    /* WIN98 */
    clock_t t;
    t = clock();
    Times_last_time = TimesStartOfTimes = t;
  } else {
#if THREADS
    REMOTE_ThreadHandle(wid).start_of_timesp =
        (struct _FILETIME *)malloc(sizeof(FILETIME));
    REMOTE_ThreadHandle(wid).last_timep =
        (struct _FILETIME *)malloc(sizeof(FILETIME));
    REMOTE_ThreadHandle(wid).start_of_times_sysp =
        (struct _FILETIME *)malloc(sizeof(FILETIME));
    REMOTE_ThreadHandle(wid).last_time_sysp =
        (struct _FILETIME *)malloc(sizeof(FILETIME));
    (*REMOTE_ThreadHandle(wid).last_timep).dwLowDateTime =
        UserTime.dwLowDateTime;
    (*REMOTE_ThreadHandle(wid).last_timep).dwHighDateTime =
        UserTime.dwHighDateTime;
    (*REMOTE_ThreadHandle(wid).start_of_timesp).dwLowDateTime =
        UserTime.dwLowDateTime;
    (*REMOTE_ThreadHandle(wid).start_of_timesp).dwHighDateTime =
        UserTime.dwHighDateTime;
    (*REMOTE_ThreadHandle(wid).last_time_sysp).dwLowDateTime =
        KernelTime.dwLowDateTime;
    (*REMOTE_ThreadHandle(wid).last_time_sysp).dwHighDateTime =
        KernelTime.dwHighDateTime;
    (*REMOTE_ThreadHandle(wid).start_of_times_sysp).dwLowDateTime =
        KernelTime.dwLowDateTime;
    (*REMOTE_ThreadHandle(wid).start_of_times_sysp).dwHighDateTime =
        KernelTime.dwHighDateTime;
#else
    last_time.dwLowDateTime = UserTime.dwLowDateTime;
    last_time.dwHighDateTime = UserTime.dwHighDateTime;
    StartOfTimes.dwLowDateTime = UserTime.dwLowDateTime;
    StartOfTimes.dwHighDateTime = UserTime.dwHighDateTime;
    last_time_sys.dwLowDateTime = KernelTime.dwLowDateTime;
    last_time_sys.dwHighDateTime = KernelTime.dwHighDateTime;
    StartOfTimes_sys.dwLowDateTime = KernelTime.dwLowDateTime;
    StartOfTimes_sys.dwHighDateTime = KernelTime.dwHighDateTime;
#endif
  }
}

#ifdef __GNUC__
static unsigned long long int sub_utime(FILETIME t1, FILETIME t2) {
  ULARGE_INTEGER u[2];
  memcpy((void *)u, (void *)&t1, sizeof(FILETIME));
  memcpy((void *)(u + 1), (void *)&t2, sizeof(FILETIME));
  return u[0].QuadPart - u[1].QuadPart;
}
#endif

UInt Yap_cputime(void) {
  HANDLE hProcess = GetCurrentProcess();
  FILETIME CreationTime, ExitTime, KernelTime, UserTime;
  if (!GetProcessTimes(hProcess, &CreationTime, &ExitTime, &KernelTime,
                       &UserTime)) {
    clock_t t;
    t = clock();
    return (((t - TimesStartOfTimes) * 1000) / CLOCKS_PER_SEC);
  } else {
#ifdef __GNUC__
    unsigned long long int t = sub_utime(UserTime, StartOfTimes);
    do_div(t, 10000);
    return ((Int)t);
#endif
#ifdef _MSC_VER
    __int64 t = *(__int64 *)&UserTime - *(__int64 *)&StartOfTimes;
    return ((Int)(t / 10000));
#endif
  }
}

void Yap_cputime_interval(Int *now, Int *interval) {
  HANDLE hProcess = GetCurrentProcess();
  FILETIME CreationTime, ExitTime, KernelTime, UserTime;
  if (!GetProcessTimes(hProcess, &CreationTime, &ExitTime, &KernelTime,
                       &UserTime)) {
    clock_t t;
    t = clock();
    *now = ((t - TimesStartOfTimes) * 1000) / CLOCKS_PER_SEC;
    *interval = (t - Times_last_time) * 1000 / CLOCKS_PER_SEC;
    Times_last_time = t;
  } else {
#ifdef __GNUC__
    unsigned long long int t1 = sub_utime(UserTime, StartOfTimes);
    unsigned long long int t2 = sub_utime(UserTime, last_time);
    do_div(t1, 10000);
    *now = (Int)t1;
    do_div(t2, 10000);
    *interval = (Int)t2;
#endif
#ifdef _MSC_VER
    __int64 t1 = *(__int64 *)&UserTime - *(__int64 *)&StartOfTimes;
    __int64 t2 = *(__int64 *)&UserTime - *(__int64 *)&last_time;
    *now = (Int)(t1 / 10000);
    *interval = (Int)(t2 / 10000);
#endif
    last_time.dwLowDateTime = UserTime.dwLowDateTime;
    last_time.dwHighDateTime = UserTime.dwHighDateTime;
  }
}

void Yap_systime_interval(Int *now, Int *interval) {
  HANDLE hProcess = GetCurrentProcess();
  FILETIME CreationTime, ExitTime, KernelTime, UserTime;
  if (!GetProcessTimes(hProcess, &CreationTime, &ExitTime, &KernelTime,
                       &UserTime)) {
    *now = *interval = 0; /* not available */
  } else {
#ifdef __GNUC__
    unsigned long long int t1 = sub_utime(KernelTime, StartOfTimes_sys);
    unsigned long long int t2 = sub_utime(KernelTime, last_time_sys);
    do_div(t1, 10000);
    *now = (Int)t1;
    do_div(t2, 10000);
    *interval = (Int)t2;
#endif
#ifdef _MSC_VER
    __int64 t1 = *(__int64 *)&KernelTime - *(__int64 *)&StartOfTimes_sys;
    __int64 t2 = *(__int64 *)&KernelTime - *(__int64 *)&last_time_sys;
    *now = (Int)(t1 / 10000);
    *interval = (Int)(t2 / 10000);
#endif
    last_time_sys.dwLowDateTime = KernelTime.dwLowDateTime;
    last_time_sys.dwHighDateTime = KernelTime.dwHighDateTime;
  }
}

#elif HAVE_TIMES

#if defined(_WIN32)

#include <time.h>

#define TicksPerSec CLOCKS_PER_SEC

#else

#if HAVE_SYS_TIMES_H
#include <sys/times.h>
#endif

#endif

#if defined(__sun__) && (defined(__svr4__) || defined(__SVR4))

#if HAVE_LIMITS_H
#include <limits.h>
#endif

#define TicksPerSec CLK_TCK
#endif

#if defined(__alpha) || defined(__FreeBSD__) || defined(__linux__) ||          \
    defined(__DragonFly__)

#if HAVE_TIME_H
#include <time.h>
#endif

#define TicksPerSec sysconf(_SC_CLK_TCK)

#endif

#if !TMS_IN_SYS_TIME
#if HAVE_SYS_TIMES_H
#include <sys/times.h>
#endif
#endif

static clock_t StartOfTimes, last_time;

static clock_t StartOfTimes_sys, last_time_sys;

/* store user time in this variable */
static void InitTime(void) {
  struct tms t;
  times(&t);
  (*REMOTE_ThreadHandle(wid).last_timep) = StartOfTimes = t.tms_utime;
  last_time_sys = StartOfTimes_sys = t.tms_stime;
}

UInt Yap_cputime(void) {
  struct tms t;
  times(&t);
  return ((t.tms_utime - StartOfTimes) * 1000 / TicksPerSec);
}

void Yap_cputime_interval(Int *now, Int *interval) {
  struct tms t;
  times(&t);
  *now = ((t.tms_utime - StartOfTimes) * 1000) / TicksPerSec;
  *interval = (t.tms_utime - last_time) * 1000 / TicksPerSec;
  last_time = t.tms_utime;
}

void Yap_systime_interval(Int *now, Int *interval) {
  struct tms t;
  times(&t);
  *now = ((t.tms_stime - StartOfTimes_sys) * 1000) / TicksPerSec;
  *interval = (t.tms_stime - last_time_sys) * 1000 / TicksPerSec;
  last_time_sys = t.tms_stime;
}

#else /* HAVE_TIMES */

#ifdef SIMICS

#include <sys/time.h>

/* since the point YAP was started */
static struct timeval StartOfTimes;

/* since last call to runtime */
static struct timeval last_time;

/* store user time in this variable */
static void InitTime(int wid) {
  struct timeval tp;

  gettimeofday(&tp, NULL);
  (*REMOTE_ThreadHandle(wid).last_timep).tv_sec =
      (*REMOTE_ThreadHandle.start_of_timesp(wid)).tv_sec = tp.tv_sec;
  (*REMOTE_ThreadHandle(wid).last_timep).tv_usec =
      (*REMOTE_ThreadHandle.start_of_timesp(wid)).tv_usec = tp.tv_usec;
}

UInt Yap_cputime(void) {
  struct timeval tp;

  gettimeofday(&tp, NULL);
  if (StartOfTimes.tv_usec > tp.tv_usec)
    return ((tp.tv_sec - StartOfTimes.tv_sec - 1) * 1000 +
            (StartOfTimes.tv_usec - tp.tv_usec) / 1000);
  else
    return ((tp.tv_sec - StartOfTimes.tv_sec)) * 1000 +
           ((tp.tv_usec - StartOfTimes.tv_usec) / 1000);
}

void Yap_cputime_interval(Int *now, Int *interval) {
  struct timeval tp;

  gettimeofday(&tp, NULL);
  *now = (tp.tv_sec - StartOfTimes.tv_sec) * 1000 +
         (tp.tv_usec - StartOfTimes.tv_usec) / 1000;
  *interval = (tp.tv_sec - last_time.tv_sec) * 1000 +
              (tp.tv_usec - last_time.tv_usec) / 1000;
  last_time.tv_usec = tp.tv_usec;
  last_time.tv_sec = tp.tv_sec;
}

void Yap_systime_interval(Int *now, Int *interval) {
  *now = *interval = 0; /* not available */
}

#endif /* SIMICS */

#ifdef COMMENTED_OUT
/* This code is not working properly. I left it here to help future ports */
#ifdef MPW

#include <Events.h>
#include <files.h>

#define TicksPerSec 60.0

static double real_cputime() { return (((double)TickCount()) / TicksPerSec); }

#endif /* MPW */

#ifdef LATTICE

#include "osbind.h"

static long *ptime;

gettime() { *ptime = *(long *)0x462; }

static double real_cputime() {
  long thetime;
  ptime = &thetime;
  xbios(38, gettime);
  return (((double)thetime) / (Getrez() == 2 ? 70 : 60));
}

#endif /* LATTICE */

#ifdef M_WILLIAMS

#include <osbind.h>
#include <xbios.h>

static long *ptime;

static long readtime() { return (*((long *)0x4ba)); }

static double real_cputime() {
  long time;

  time = Supexec(readtime);
  return (time / 200.0);
}

#endif /* M_WILLIAMS */

#ifdef LIGHT

#undef FALSE
#undef TRUE

#include <FileMgr.h>

#define TicksPerSec 60.0

static double real_cputime() { return (((double)TickCount()) / TicksPerSec); }

#endif /* LIGHT */

#endif /* COMMENTED_OUT */

#endif /* HAVE_GETRUSAGE */

uint64_t Yap_StartOfWTimes;

#if HAVE_GETHRTIME

#if HAVE_TIME_H
#include <time.h>
#endif

/* since the point YAP was started */

void Yap_InitWTime(void) { Yap_StartOfWTimes = (uint64_t)gethrtime(); }

/// returns time since Jan 1 1980 in nano-seconds
uint64_t Yap_walltime(uint64_t old) {
  hrtime_t tp = gethrtime();
  /* return time in milliseconds */
  return (uint64_t)tp;
}

#elif HAVE_GETTIMEOFDAY

/* since the point YAP was started */
/* store user time in this variable */
void Yap_InitWTime(void) {
  struct timeval tp;

  gettimeofday(&tp, NULL);
  Yap_StartOfWTimes =
      (uint64_t)tp.tv_sec * 1000000000 + (uint64_t)tp.tv_usec * 1000;
}

/// returns time in nano-secs since the epoch
uint64_t Yap_walltime(void) {
  struct timeval tp;

  gettimeofday(&tp, NULL);
  return (uint64_t)tp.tv_sec * 1000000000 + (uint64_t)tp.tv_usec * 1000;
}

#elif defined(_WIN32)

#include <sys/timeb.h>
#include <time.h>

/* since the point YAP was started */
static LARGE_INTEGER Frequency;

/* store user time in this variable */
void Yap_InitWTime(void) {
  LARGE_INTEGER ElapsedNanoseconds;
  QueryPerformanceFrequency(&Frequency);
  QueryPerformanceCounter(&ElapsedNanoseconds);
  ElapsedNanoseconds.QuadPart *= 1000000;
  ElapsedNanoseconds.QuadPart /= Frequency.QuadPart;
  Yap_StartOfWTimes = (uint64_t)ElapsedNanoseconds.QuadPart;
}

uint64_t Yap_walltime(void) {
  LARGE_INTEGER ElapsedNanoseconds;
  QueryPerformanceCounter(&ElapsedNanoseconds);
  //
  // We now have the elapsed number of ticks, along with the
  // number of ticks-per-second. We use these values
  // to convert to the number of elapsed microseconds.
  // To guard against loss-of-precision, we convert
  // to microseconds *before* dividing by ticks-per-second.
  //

  ElapsedNanoseconds.QuadPart *= 1000000;
  ElapsedNanoseconds.QuadPart /= Frequency.QuadPart;
  return ElapsedNanoseconds.QuadPart;
}

#elif HAVE_TIMES

/* store user time in this variable */
void Yap_InitWTime(void) {
  // start thread 0
  REMOTE_LastWTime(0) = Yap_StartOfWTimes =
      ((uint64_t)times(NULL)) * 10000000 / TicksPerSec;
}

uint64_t Yap_walltime(void) {
  clock_t t;
  t = times(NULL);
  return = ((uint64_t)times(NULL)) * 10000000 / TicksPerSec;
}

#endif /* HAVE_TIMES */
void Yap_ReInitWTime(void) { Yap_InitWTime(); }

void Yap_InitTimePreds(void) {
  /* can only do after heap is initialized */
  Yap_InitWTime();
}