+/*
+ *
+ * Copyright (c) 1996-2002 Douglas E. Wegscheid. All rights reserved.
+ *
+ * Copyright (c) 2002,2003,2004,2005 Jarkko Hietaniemi. All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the same terms as Perl itself.
+ */
+
#ifdef __cplusplus
extern "C" {
#endif
+#define PERL_NO_GET_CONTEXT
#include "EXTERN.h"
#include "perl.h"
#include "XSUB.h"
+#include "ppport.h"
+#if defined(__CYGWIN__) && defined(HAS_W32API_WINDOWS_H)
+# include <w32api/windows.h>
+# define CYGWIN_WITH_W32API
+#endif
#ifdef WIN32
-#include <time.h>
+# include <time.h>
#else
-#include <sys/time.h>
+# include <sys/time.h>
#endif
#ifdef HAS_SELECT
# ifdef I_SYS_SELECT
# include <sys/select.h>
# endif
#endif
+#if defined(TIME_HIRES_CLOCK_GETTIME_SYSCALL) || defined(TIME_HIRES_CLOCK_GETRES_SYSCALL)
+#include <syscall.h>
+#endif
#ifdef __cplusplus
}
#endif
-#ifndef aTHX_
-# define aTHX_
-# define pTHX_
-#endif
-
-#ifndef NVTYPE
-# if defined(USE_LONG_DOUBLE) && defined(HAS_LONG_DOUBLE)
-# define NVTYPE long double
-# else
-# define NVTYPE double
-# endif
-typedef NVTYPE NV;
-#endif
-
-#ifndef IVdf
-# ifdef IVSIZE
-# if IVSIZE == LONGSIZE
-# define IVdf "ld"
-# define UVuf "lu"
-# else
-# if IVSIZE == INTSIZE
-# define IVdf "d"
-# define UVuf "u"
-# endif
-# endif
-# else
-# define IVdf "ld"
-# define UVuf "lu"
-# endif
-#endif
-
-#ifndef NVef
-# if defined(USE_LONG_DOUBLE) && defined(HAS_LONG_DOUBLE) && \
- defined(PERL_PRIgldbl) /* Not very likely, but let's try anyway. */
-# define NVgf PERL_PRIgldbl
-# else
-# define NVgf "g"
-# endif
+#ifndef PerlProc_pause
+# define PerlProc_pause() Pause()
#endif
-#ifndef INT2PTR
-
-#if (IVSIZE == PTRSIZE) && (UVSIZE == PTRSIZE)
-# define PTRV UV
-# define INT2PTR(any,d) (any)(d)
+#ifdef HAS_PAUSE
+# define Pause pause
#else
-# if PTRSIZE == LONGSIZE
-# define PTRV unsigned long
-# else
-# define PTRV unsigned
-# endif
-# define INT2PTR(any,d) (any)(PTRV)(d)
-#endif
-#define PTR2IV(p) INT2PTR(IV,p)
-
-#endif /* !INT2PTR */
-
-#ifndef SvPV_nolen
-static char *
-sv_2pv_nolen(pTHX_ register SV *sv)
-{
- STRLEN n_a;
- return sv_2pv(sv, &n_a);
-}
-# define SvPV_nolen(sv) \
- ((SvFLAGS(sv) & (SVf_POK)) == SVf_POK \
- ? SvPVX(sv) : sv_2pv_nolen(sv))
-#endif
-
-#ifndef PerlProc_pause
-# define PerlProc_pause() Pause()
+# undef Pause /* In case perl.h did it already. */
+# define Pause() sleep(~0) /* Zzz for a long time. */
#endif
/* Though the cpp define ITIMER_VIRTUAL is available the functionality
- * is not supported in Cygwin as of August 2002, ditto for Win32.
+ * is not supported in Cygwin as of August 2004, ditto for Win32.
* Neither are ITIMER_PROF or ITIMER_REALPROF implemented. --jhi
*/
#if defined(__CYGWIN__) || defined(WIN32)
/* 5.004 doesn't define PL_sv_undef */
#ifndef ATLEASTFIVEOHOHFIVE
-#ifndef PL_sv_undef
-#define PL_sv_undef sv_undef
-#endif
+# ifndef PL_sv_undef
+# define PL_sv_undef sv_undef
+# endif
#endif
#include "const-c.inc"
-#if !defined(HAS_GETTIMEOFDAY) && defined(WIN32)
-#define HAS_GETTIMEOFDAY
+#if defined(WIN32) || defined(CYGWIN_WITH_W32API)
+
+#ifndef HAS_GETTIMEOFDAY
+# define HAS_GETTIMEOFDAY
+#endif
/* shows up in winsock.h?
struct timeval {
FILETIME ft_val;
} FT_t;
+#define MY_CXT_KEY "Time::HiRes_" XS_VERSION
+
+typedef struct {
+ unsigned long run_count;
+ unsigned __int64 base_ticks;
+ unsigned __int64 tick_frequency;
+ FT_t base_systime_as_filetime;
+ unsigned __int64 reset_time;
+} my_cxt_t;
+
+START_MY_CXT
+
/* Number of 100 nanosecond units from 1/1/1601 to 1/1/1970 */
#ifdef __GNUC__
-#define Const64(x) x##LL
+# define Const64(x) x##LL
#else
-#define Const64(x) x##i64
+# define Const64(x) x##i64
#endif
#define EPOCH_BIAS Const64(116444736000000000)
/* NOTE: This does not compute the timezone info (doing so can be expensive,
* and appears to be unsupported even by glibc) */
-int
-gettimeofday (struct timeval *tp, void *not_used)
+
+/* dMY_CXT needs a Perl context and we don't want to call PERL_GET_CONTEXT
+ for performance reasons */
+
+#undef gettimeofday
+#define gettimeofday(tp, not_used) _gettimeofday(aTHX_ tp, not_used)
+
+/* If the performance counter delta drifts more than 0.5 seconds from the
+ * system time then we recalibrate to the system time. This means we may
+ * move *backwards* in time! */
+#define MAX_PERF_COUNTER_SKEW Const64(5000000) /* 0.5 seconds */
+
+/* Reset reading from the performance counter every five minutes.
+ * Many PC clocks just seem to be so bad. */
+#define MAX_PERF_COUNTER_TICKS Const64(300000000) /* 300 seconds */
+
+static int
+_gettimeofday(pTHX_ struct timeval *tp, void *not_used)
{
+ dMY_CXT;
+
+ unsigned __int64 ticks;
FT_t ft;
- /* this returns time in 100-nanosecond units (i.e. tens of usecs) */
- GetSystemTimeAsFileTime(&ft.ft_val);
+ if (MY_CXT.run_count++ == 0 ||
+ MY_CXT.base_systime_as_filetime.ft_i64 > MY_CXT.reset_time) {
+ QueryPerformanceFrequency((LARGE_INTEGER*)&MY_CXT.tick_frequency);
+ QueryPerformanceCounter((LARGE_INTEGER*)&MY_CXT.base_ticks);
+ GetSystemTimeAsFileTime(&MY_CXT.base_systime_as_filetime.ft_val);
+ ft.ft_i64 = MY_CXT.base_systime_as_filetime.ft_i64;
+ MY_CXT.reset_time = ft.ft_i64 + MAX_PERF_COUNTER_TICKS;
+ }
+ else {
+ __int64 diff;
+ QueryPerformanceCounter((LARGE_INTEGER*)&ticks);
+ ticks -= MY_CXT.base_ticks;
+ ft.ft_i64 = MY_CXT.base_systime_as_filetime.ft_i64
+ + Const64(10000000) * (ticks / MY_CXT.tick_frequency)
+ +(Const64(10000000) * (ticks % MY_CXT.tick_frequency)) / MY_CXT.tick_frequency;
+ diff = ft.ft_i64 - MY_CXT.base_systime_as_filetime.ft_i64;
+ if (diff < -MAX_PERF_COUNTER_SKEW || diff > MAX_PERF_COUNTER_SKEW) {
+ MY_CXT.base_ticks += ticks;
+ GetSystemTimeAsFileTime(&MY_CXT.base_systime_as_filetime.ft_val);
+ ft.ft_i64 = MY_CXT.base_systime_as_filetime.ft_i64;
+ }
+ }
/* seconds since epoch */
tp->tv_sec = (long)((ft.ft_i64 - EPOCH_BIAS) / Const64(10000000));
}
#endif
+#if defined(WIN32) && !defined(ATLEASTFIVEOHOHFIVE)
+static unsigned int
+sleep(unsigned int t)
+{
+ Sleep(t*1000);
+ return 0;
+}
+#endif
+
#if !defined(HAS_GETTIMEOFDAY) && defined(VMS)
#define HAS_GETTIMEOFDAY
#endif
-#if !defined(HAS_USLEEP) && defined(HAS_NANOSLEEP)
+ /* Do not use H A S _ N A N O S L E E P
+ * so that Perl Configure doesn't scan for it.
+ * The TIME_HIRES_NANOSLEEP is set by Makefile.PL. */
+#if !defined(HAS_USLEEP) && defined(TIME_HIRES_NANOSLEEP)
#define HAS_USLEEP
#define usleep hrt_nanosleep /* could conflict with ncurses for static build */
void
-hrt_nanosleep(unsigned long usec)
+hrt_nanosleep(unsigned long usec) /* This is used to emulate usleep. */
{
struct timespec res;
res.tv_sec = usec/1000/1000;
res.tv_nsec = ( usec - res.tv_sec*1000*1000 ) * 1000;
nanosleep(&res, NULL);
}
-#endif
+#endif /* #if !defined(HAS_USLEEP) && defined(TIME_HIRES_NANOSLEEP) */
#if !defined(HAS_USLEEP) && defined(HAS_SELECT)
#ifndef SELECT_IS_BROKEN
(Select_fd_set_t)NULL, &tv);
}
#endif
-#endif
+#endif /* #if !defined(HAS_USLEEP) && defined(HAS_SELECT) */
#if !defined(HAS_USLEEP) && defined(WIN32)
#define HAS_USLEEP
msec = usec / 1000;
Sleep (msec);
}
-#endif
+#endif /* #if !defined(HAS_USLEEP) && defined(WIN32) */
#if !defined(HAS_UALARM) && defined(HAS_SETITIMER)
itv.it_interval.tv_usec = interval % 1000000;
return setitimer(ITIMER_REAL, &itv, 0);
}
-#endif
+#endif /* #if !defined(HAS_UALARM) && defined(HAS_SETITIMER) */
#if !defined(HAS_UALARM) && defined(VMS)
#define HAS_UALARM
}
}
-#endif /* !HAS_UALARM && VMS */
+#endif /* #if !defined(HAS_UALARM) && defined(VMS) */
#ifdef HAS_GETTIMEOFDAY
static int
-myU2time(UV *ret)
+myU2time(pTHX_ UV *ret)
{
struct timeval Tp;
int status;
static NV
myNVtime()
{
+#ifdef WIN32
+ dTHX;
+#endif
struct timeval Tp;
int status;
status = gettimeofday (&Tp, NULL);
return status == 0 ? Tp.tv_sec + (Tp.tv_usec / 1000000.) : -1.0;
}
-#endif
+#endif /* #ifdef HAS_GETTIMEOFDAY */
MODULE = Time::HiRes PACKAGE = Time::HiRes
PROTOTYPES: ENABLE
BOOT:
+{
+#ifdef MY_CXT_KEY
+ MY_CXT_INIT;
+#endif
#ifdef ATLEASTFIVEOHOHFIVE
#ifdef HAS_GETTIMEOFDAY
-{
- UV auv[2];
- hv_store(PL_modglobal, "Time::NVtime", 12, newSViv(PTR2IV(myNVtime)), 0);
- if (myU2time(auv) == 0)
- hv_store(PL_modglobal, "Time::U2time", 12, newSViv((IV) auv[0]), 0);
-}
+ {
+ hv_store(PL_modglobal, "Time::NVtime", 12, newSViv(PTR2IV(myNVtime)), 0);
+ hv_store(PL_modglobal, "Time::U2time", 12, newSViv(PTR2IV(myU2time)), 0);
+ }
#endif
#endif
+}
+
+#if defined(USE_ITHREADS) && defined(MY_CXT_KEY)
+
+void
+CLONE(...)
+ CODE:
+ MY_CXT_CLONE;
+
+#endif
INCLUDE: const-xs.inc
OUTPUT:
RETVAL
+#if defined(TIME_HIRES_NANOSLEEP)
+
+NV
+nanosleep(nseconds)
+ NV nseconds
+ PREINIT:
+ struct timeval Ta, Tb;
+ CODE:
+ gettimeofday(&Ta, NULL);
+ if (items > 0) {
+ struct timespec tsa;
+ if (nseconds > 1E9) {
+ IV seconds = (IV) (nseconds / 1E9);
+ if (seconds) {
+ sleep(seconds);
+ nseconds -= 1E9 * seconds;
+ }
+ } else if (nseconds < 0.0)
+ croak("Time::HiRes::nanosleep(%"NVgf"): negative time not invented yet", nseconds);
+ tsa.tv_sec = (IV) (nseconds / 1E9);
+ tsa.tv_nsec = (IV) nseconds - tsa.tv_sec * 1E9;
+ nanosleep(&tsa, NULL);
+ } else
+ PerlProc_pause();
+ gettimeofday(&Tb, NULL);
+ RETVAL = 1E3*(1E6*(Tb.tv_sec-Ta.tv_sec)+(NV)((IV)Tb.tv_usec-(IV)Ta.tv_usec));
+
+ OUTPUT:
+ RETVAL
+
+#else /* #if defined(TIME_HIRES_NANOSLEEP) */
+
+NV
+nanosleep(nseconds)
+ NV nseconds
+ CODE:
+ croak("Time::HiRes::nanosleep(): unimplemented in this platform");
+ RETVAL = 0.0;
+
+#endif /* #if defined(TIME_HIRES_NANOSLEEP) */
+
NV
sleep(...)
PREINIT:
* circumstances (if the double is cast to UV more
* than once?) evaluate to -0.5, instead of 0.5. */
useconds = -(IV)useconds;
-#endif
+#endif /* #if defined(__sparc64__) && defined(__GNUC__) */
if ((IV)useconds < 0)
croak("Time::HiRes::sleep(%"NVgf"): internal error: useconds < 0 (unsigned %"UVuf" signed %"IVdf")", seconds, useconds, (IV)useconds);
}
OUTPUT:
RETVAL
-#endif
+#else /* #if defined(HAS_USLEEP) && defined(HAS_GETTIMEOFDAY) */
+
+NV
+usleep(useconds)
+ NV useconds
+ CODE:
+ croak("Time::HiRes::usleep(): unimplemented in this platform");
+ RETVAL = 0.0;
+
+#endif /* #if defined(HAS_USLEEP) && defined(HAS_GETTIMEOFDAY) */
#ifdef HAS_UALARM
OUTPUT:
RETVAL
-#endif
+#else
+
+int
+ualarm(useconds,interval=0)
+ int useconds
+ int interval
+ CODE:
+ croak("Time::HiRes::ualarm(): unimplemented in this platform");
+ RETVAL = -1;
+
+NV
+alarm(seconds,interval=0)
+ NV seconds
+ NV interval
+ CODE:
+ croak("Time::HiRes::alarm(): unimplemented in this platform");
+ RETVAL = 0.0;
+
+#endif /* #ifdef HAS_UALARM */
#ifdef HAS_GETTIMEOFDAY
# ifdef MACOS_TRADITIONAL /* fix epoch TZ and use unsigned time_t */
PPCODE:
int status;
status = gettimeofday (&Tp, &Tz);
- Tp.tv_sec += Tz.tz_minuteswest * 60; /* adjust for TZ */
- if (GIMME == G_ARRAY) {
- EXTEND(sp, 2);
- /* Mac OS (Classic) has unsigned time_t */
- PUSHs(sv_2mortal(newSVuv(Tp.tv_sec)));
- PUSHs(sv_2mortal(newSViv(Tp.tv_usec)));
- } else {
- EXTEND(sp, 1);
- PUSHs(sv_2mortal(newSVnv(Tp.tv_sec + (Tp.tv_usec / 1000000.0))));
+ if (status == 0) {
+ Tp.tv_sec += Tz.tz_minuteswest * 60; /* adjust for TZ */
+ if (GIMME == G_ARRAY) {
+ EXTEND(sp, 2);
+ /* Mac OS (Classic) has unsigned time_t */
+ PUSHs(sv_2mortal(newSVuv(Tp.tv_sec)));
+ PUSHs(sv_2mortal(newSViv(Tp.tv_usec)));
+ } else {
+ EXTEND(sp, 1);
+ PUSHs(sv_2mortal(newSVnv(Tp.tv_sec + (Tp.tv_usec / 1000000.0))));
+ }
}
NV
CODE:
int status;
status = gettimeofday (&Tp, &Tz);
- Tp.tv_sec += Tz.tz_minuteswest * 60; /* adjust for TZ */
- RETVAL = Tp.tv_sec + (Tp.tv_usec / 1000000.0);
+ if (status == 0) {
+ Tp.tv_sec += Tz.tz_minuteswest * 60; /* adjust for TZ */
+ RETVAL = Tp.tv_sec + (Tp.tv_usec / 1000000.0);
+ } else {
+ RETVAL = -1.0;
+ }
OUTPUT:
RETVAL
PPCODE:
int status;
status = gettimeofday (&Tp, NULL);
- if (GIMME == G_ARRAY) {
- EXTEND(sp, 2);
- PUSHs(sv_2mortal(newSViv(Tp.tv_sec)));
- PUSHs(sv_2mortal(newSViv(Tp.tv_usec)));
- } else {
- EXTEND(sp, 1);
- PUSHs(sv_2mortal(newSVnv(Tp.tv_sec + (Tp.tv_usec / 1000000.0))));
+ if (status == 0) {
+ if (GIMME == G_ARRAY) {
+ EXTEND(sp, 2);
+ PUSHs(sv_2mortal(newSViv(Tp.tv_sec)));
+ PUSHs(sv_2mortal(newSViv(Tp.tv_usec)));
+ } else {
+ EXTEND(sp, 1);
+ PUSHs(sv_2mortal(newSVnv(Tp.tv_sec + (Tp.tv_usec / 1000000.0))));
+ }
}
NV
CODE:
int status;
status = gettimeofday (&Tp, NULL);
- RETVAL = Tp.tv_sec + (Tp.tv_usec / 1000000.);
+ if (status == 0) {
+ RETVAL = Tp.tv_sec + (Tp.tv_usec / 1000000.);
+ } else {
+ RETVAL = -1.0;
+ }
OUTPUT:
RETVAL
# endif /* MACOS_TRADITIONAL */
-#endif
+#endif /* #ifdef HAS_GETTIMEOFDAY */
#if defined(HAS_GETITIMER) && defined(HAS_SETITIMER)
}
}
+#endif /* #if defined(HAS_GETITIMER) && defined(HAS_SETITIMER) */
+
+#if defined(TIME_HIRES_CLOCK_GETTIME)
+
+NV
+clock_gettime(clock_id = CLOCK_REALTIME)
+ int clock_id
+ PREINIT:
+ struct timespec ts;
+ int status = -1;
+ CODE:
+#ifdef TIME_HIRES_CLOCK_GETTIME_SYSCALL
+ status = syscall(SYS_clock_gettime, clock_id, &ts);
+#else
+ status = clock_gettime(clock_id, &ts);
#endif
+ RETVAL = status == 0 ? ts.tv_sec + (NV) ts.tv_nsec / (NV) 1e9 : -1;
+
+ OUTPUT:
+ RETVAL
+
+#else /* if defined(TIME_HIRES_CLOCK_GETTIME) */
+
+NV
+clock_gettime(clock_id = 0)
+ int clock_id
+ CODE:
+ croak("Time::HiRes::clock_gettime(): unimplemented in this platform");
+ RETVAL = 0.0;
+
+#endif /* #if defined(TIME_HIRES_CLOCK_GETTIME) */
+
+#if defined(TIME_HIRES_CLOCK_GETRES)
+
+NV
+clock_getres(clock_id = CLOCK_REALTIME)
+ int clock_id
+ PREINIT:
+ int status = -1;
+ struct timespec ts;
+ CODE:
+#ifdef TIME_HIRES_CLOCK_GETRES_SYSCALL
+ status = syscall(SYS_clock_getres, clock_id, &ts);
+#else
+ status = clock_getres(clock_id, &ts);
+#endif
+ RETVAL = status == 0 ? ts.tv_sec + (NV) ts.tv_nsec / (NV) 1e9 : -1;
+
+ OUTPUT:
+ RETVAL
+
+#else /* if defined(TIME_HIRES_CLOCK_GETRES) */
+
+NV
+clock_getres(clock_id = 0)
+ int clock_id
+ CODE:
+ croak("Time::HiRes::clock_getres(): unimplemented in this platform");
+ RETVAL = 0.0;
+
+#endif /* #if defined(TIME_HIRES_CLOCK_GETRES) */
projects / p5sagit/p5-mst-13.2.git / blobdiff