+/*
+ *
+ * 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
-#if !defined(HAS_GETTIMEOFDAY) && defined(WIN32)
-#define HAS_GETTIMEOFDAY
+#ifndef PerlProc_pause
+# define PerlProc_pause() Pause()
+#endif
+
+#ifdef HAS_PAUSE
+# define Pause pause
+#else
+# 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 2004, ditto for Win32.
+ * Neither are ITIMER_PROF or ITIMER_REALPROF implemented. --jhi
+ */
+#if defined(__CYGWIN__) || defined(WIN32)
+# undef ITIMER_VIRTUAL
+# undef ITIMER_PROF
+# undef ITIMER_REALPROF
+#endif
+
+/* 5.004 doesn't define PL_sv_undef */
+#ifndef ATLEASTFIVEOHOHFIVE
+# ifndef PL_sv_undef
+# define PL_sv_undef sv_undef
+# endif
+#endif
+
+#include "const-c.inc"
+
+#if defined(WIN32) || defined(CYGWIN_WITH_W32API)
+
+#ifndef HAS_GETTIMEOFDAY
+# define HAS_GETTIMEOFDAY
+#endif
/* shows up in winsock.h?
struct timeval {
}
*/
-int
-gettimeofday (struct timeval *tp, int nothing)
+typedef union {
+ unsigned __int64 ft_i64;
+ 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
+#else
+# 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) */
+
+/* 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)
{
- SYSTEMTIME st;
- time_t tt;
- struct tm tmtm;
- /* mktime converts local to UTC */
- GetLocalTime (&st);
- tmtm.tm_sec = st.wSecond;
- tmtm.tm_min = st.wMinute;
- tmtm.tm_hour = st.wHour;
- tmtm.tm_mday = st.wDay;
- tmtm.tm_mon = st.wMonth - 1;
- tmtm.tm_year = st.wYear - 1900;
- tmtm.tm_isdst = -1;
- tt = mktime (&tmtm);
- tp->tv_sec = tt;
- tp->tv_usec = st.wMilliseconds * 1000;
- return 0;
+ dMY_CXT;
+
+ unsigned __int64 ticks;
+ FT_t ft;
+
+ 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));
+
+ /* microseconds remaining */
+ tp->tv_usec = (long)((ft.ft_i64 / Const64(10)) % Const64(1000000));
+
+ return 0;
+}
+#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
+#include <lnmdef.h>
#include <time.h> /* gettimeofday */
#include <stdlib.h> /* qdiv */
#include <starlet.h> /* sys$gettim */
#include <descrip.h>
+#ifdef __VAX
+#include <lib$routines.h> /* lib$ediv() */
+#endif
/*
VMS binary time is expressed in 100 nano-seconds since
*/
static $DESCRIPTOR(dscepoch,"01-JAN-1970 00:00:00.00");
+#ifdef __VAX
+static long base_adjust[2]={0L,0L};
+#else
static __int64 base_adjust=0;
+#endif
+
+/*
+
+ If we don't have gettimeofday, then likely we are on a VMS machine that
+ operates on local time rather than UTC...so we have to zone-adjust.
+ This code gleefully swiped from VMS.C
+
+*/
+/* method used to handle UTC conversions:
+ * 1 == CRTL gmtime(); 2 == SYS$TIMEZONE_DIFFERENTIAL; 3 == no correction
+ */
+static int gmtime_emulation_type;
+/* number of secs to add to UTC POSIX-style time to get local time */
+static long int utc_offset_secs;
+static struct dsc$descriptor_s fildevdsc =
+ { 12, DSC$K_DTYPE_T, DSC$K_CLASS_S, "LNM$FILE_DEV" };
+static struct dsc$descriptor_s *fildev[] = { &fildevdsc, NULL };
+
+static time_t toutc_dst(time_t loc) {
+ struct tm *rsltmp;
+
+ if ((rsltmp = localtime(&loc)) == NULL) return -1;
+ loc -= utc_offset_secs;
+ if (rsltmp->tm_isdst) loc -= 3600;
+ return loc;
+}
+
+static time_t toloc_dst(time_t utc) {
+ struct tm *rsltmp;
+
+ utc += utc_offset_secs;
+ if ((rsltmp = localtime(&utc)) == NULL) return -1;
+ if (rsltmp->tm_isdst) utc += 3600;
+ return utc;
+}
+
+#define _toutc(secs) ((secs) == (time_t) -1 ? (time_t) -1 : \
+ ((gmtime_emulation_type || timezone_setup()), \
+ (gmtime_emulation_type == 1 ? toutc_dst(secs) : \
+ ((secs) - utc_offset_secs))))
+
+#define _toloc(secs) ((secs) == (time_t) -1 ? (time_t) -1 : \
+ ((gmtime_emulation_type || timezone_setup()), \
+ (gmtime_emulation_type == 1 ? toloc_dst(secs) : \
+ ((secs) + utc_offset_secs))))
+
+static int
+timezone_setup(void)
+{
+ struct tm *tm_p;
+
+ if (gmtime_emulation_type == 0) {
+ int dstnow;
+ time_t base = 15 * 86400; /* 15jan71; to avoid month/year ends between */
+ /* results of calls to gmtime() and localtime() */
+ /* for same &base */
+
+ gmtime_emulation_type++;
+ if ((tm_p = gmtime(&base)) == NULL) { /* CRTL gmtime() is a fake */
+ char off[LNM$C_NAMLENGTH+1];;
+
+ gmtime_emulation_type++;
+ if (!Perl_vmstrnenv("SYS$TIMEZONE_DIFFERENTIAL",off,0,fildev,0)) {
+ gmtime_emulation_type++;
+ utc_offset_secs = 0;
+ Perl_warn(aTHX_ "no UTC offset information; assuming local time is UTC");
+ }
+ else { utc_offset_secs = atol(off); }
+ }
+ else { /* We've got a working gmtime() */
+ struct tm gmt, local;
+
+ gmt = *tm_p;
+ tm_p = localtime(&base);
+ local = *tm_p;
+ utc_offset_secs = (local.tm_mday - gmt.tm_mday) * 86400;
+ utc_offset_secs += (local.tm_hour - gmt.tm_hour) * 3600;
+ utc_offset_secs += (local.tm_min - gmt.tm_min) * 60;
+ utc_offset_secs += (local.tm_sec - gmt.tm_sec);
+ }
+ }
+ return 1;
+}
+
int
gettimeofday (struct timeval *tp, void *tpz)
{
long ret;
+#ifdef __VAX
+ long quad[2];
+ long quad1[2];
+ long div_100ns_to_secs;
+ long div_100ns_to_usecs;
+ long quo,rem;
+ long quo1,rem1;
+#else
__int64 quad;
__qdiv_t ans1,ans2;
-
+#endif
/*
In case of error, tv_usec = 0 and tv_sec = VMS condition code.
The return from function is also set to -1.
tp->tv_usec = 0;
+#ifdef __VAX
+ if (base_adjust[0]==0 && base_adjust[1]==0) {
+#else
if (base_adjust==0) { /* Need to determine epoch adjustment */
+#endif
ret=sys$bintim(&dscepoch,&base_adjust);
if (1 != (ret &&1)) {
tp->tv_sec = ret;
ret=sys$gettim(&quad); /* Get VMS system time */
if ((1 && ret) == 1) {
+#ifdef __VAX
+ quad[0] -= base_adjust[0]; /* convert to epoch offset */
+ quad[1] -= base_adjust[1]; /* convert 2nd half of quadword */
+ div_100ns_to_secs = DIV_100NS_TO_SECS;
+ div_100ns_to_usecs = DIV_100NS_TO_USECS;
+ lib$ediv(&div_100ns_to_secs,&quad,&quo,&rem);
+ quad1[0] = rem;
+ quad1[1] = 0L;
+ lib$ediv(&div_100ns_to_usecs,&quad1,&quo1,&rem1);
+ tp->tv_sec = quo; /* Whole seconds */
+ tp->tv_usec = quo1; /* Micro-seconds */
+#else
quad -= base_adjust; /* convert to epoch offset */
ans1=qdiv(quad,DIV_100NS_TO_SECS);
ans2=qdiv(ans1.rem,DIV_100NS_TO_USECS);
tp->tv_sec = ans1.quot; /* Whole seconds */
tp->tv_usec = ans2.quot; /* Micro-seconds */
+#endif
} else {
tp->tv_sec = ret;
return -1;
}
+# ifdef VMSISH_TIME
+# ifdef RTL_USES_UTC
+ if (VMSISH_TIME) tp->tv_sec = _toloc(tp->tv_sec);
+# else
+ if (!VMSISH_TIME) tp->tv_sec = _toutc(tp->tv_sec);
+# endif
+# endif
return 0;
}
#endif
+
+ /* Do not use H A S _ N A N O S L E E P
+ * so that Perl Configure doesn't scan for it.
+ * The TIME_HIRES_NANOSLEEP is set by Makefile.PL. */
+#if !defined(HAS_USLEEP) && defined(TIME_HIRES_NANOSLEEP)
+#define HAS_USLEEP
+#define usleep hrt_nanosleep /* could conflict with ncurses for static build */
+
+void
+hrt_nanosleep(unsigned long usec) /* This is used to emulate usleep. */
+{
+ struct timespec res;
+ res.tv_sec = usec/1000/1000;
+ res.tv_nsec = ( usec - res.tv_sec*1000*1000 ) * 1000;
+ nanosleep(&res, NULL);
+}
+
+#endif /* #if !defined(HAS_USLEEP) && defined(TIME_HIRES_NANOSLEEP) */
+
#if !defined(HAS_USLEEP) && defined(HAS_SELECT)
#ifndef SELECT_IS_BROKEN
#define HAS_USLEEP
(Select_fd_set_t)NULL, &tv);
}
#endif
-#endif
+#endif /* #if !defined(HAS_USLEEP) && defined(HAS_SELECT) */
#if !defined(HAS_USLEEP) && defined(WIN32)
#define HAS_USLEEP
msec = usec / 1000;
Sleep (msec);
}
-#endif
+#endif /* #if !defined(HAS_USLEEP) && defined(WIN32) */
#if !defined(HAS_UALARM) && defined(HAS_SETITIMER)
itv.it_interval.tv_usec = interval % 1000000;
return setitimer(ITIMER_REAL, &itv, 0);
}
-#endif
+#endif /* #if !defined(HAS_UALARM) && defined(HAS_SETITIMER) */
-#ifdef HAS_GETTIMEOFDAY
+#if !defined(HAS_UALARM) && defined(VMS)
+#define HAS_UALARM
+#define ualarm vms_ualarm
+
+#include <lib$routines.h>
+#include <ssdef.h>
+#include <starlet.h>
+#include <descrip.h>
+#include <signal.h>
+#include <jpidef.h>
+#include <psldef.h>
+
+#define VMSERR(s) (!((s)&1))
static void
-myU2time(UV *ret)
+us_to_VMS(useconds_t mseconds, unsigned long v[])
+{
+ int iss;
+ unsigned long qq[2];
+
+ qq[0] = mseconds;
+ qq[1] = 0;
+ v[0] = v[1] = 0;
+
+ iss = lib$addx(qq,qq,qq);
+ if (VMSERR(iss)) lib$signal(iss);
+ iss = lib$subx(v,qq,v);
+ if (VMSERR(iss)) lib$signal(iss);
+ iss = lib$addx(qq,qq,qq);
+ if (VMSERR(iss)) lib$signal(iss);
+ iss = lib$subx(v,qq,v);
+ if (VMSERR(iss)) lib$signal(iss);
+ iss = lib$subx(v,qq,v);
+ if (VMSERR(iss)) lib$signal(iss);
+}
+
+static int
+VMS_to_us(unsigned long v[])
+{
+ int iss;
+ unsigned long div=10,quot, rem;
+
+ iss = lib$ediv(&div,v,",&rem);
+ if (VMSERR(iss)) lib$signal(iss);
+
+ return quot;
+}
+
+typedef unsigned short word;
+typedef struct _ualarm {
+ int function;
+ int repeat;
+ unsigned long delay[2];
+ unsigned long interval[2];
+ unsigned long remain[2];
+} Alarm;
+
+
+static int alarm_ef;
+static Alarm *a0, alarm_base;
+#define UAL_NULL 0
+#define UAL_SET 1
+#define UAL_CLEAR 2
+#define UAL_ACTIVE 4
+static void ualarm_AST(Alarm *a);
+
+static int
+vms_ualarm(int mseconds, int interval)
+{
+ Alarm *a, abase;
+ struct item_list3 {
+ word length;
+ word code;
+ void *bufaddr;
+ void *retlenaddr;
+ } ;
+ static struct item_list3 itmlst[2];
+ static int first = 1;
+ unsigned long asten;
+ int iss, enabled;
+
+ if (first) {
+ first = 0;
+ itmlst[0].code = JPI$_ASTEN;
+ itmlst[0].length = sizeof(asten);
+ itmlst[0].retlenaddr = NULL;
+ itmlst[1].code = 0;
+ itmlst[1].length = 0;
+ itmlst[1].bufaddr = NULL;
+ itmlst[1].retlenaddr = NULL;
+
+ iss = lib$get_ef(&alarm_ef);
+ if (VMSERR(iss)) lib$signal(iss);
+
+ a0 = &alarm_base;
+ a0->function = UAL_NULL;
+ }
+ itmlst[0].bufaddr = &asten;
+
+ iss = sys$getjpiw(0,0,0,itmlst,0,0,0);
+ if (VMSERR(iss)) lib$signal(iss);
+ if (!(asten&0x08)) return -1;
+
+ a = &abase;
+ if (mseconds) {
+ a->function = UAL_SET;
+ } else {
+ a->function = UAL_CLEAR;
+ }
+
+ us_to_VMS(mseconds, a->delay);
+ if (interval) {
+ us_to_VMS(interval, a->interval);
+ a->repeat = 1;
+ } else
+ a->repeat = 0;
+
+ iss = sys$clref(alarm_ef);
+ if (VMSERR(iss)) lib$signal(iss);
+
+ iss = sys$dclast(ualarm_AST,a,0);
+ if (VMSERR(iss)) lib$signal(iss);
+
+ iss = sys$waitfr(alarm_ef);
+ if (VMSERR(iss)) lib$signal(iss);
+
+ if (a->function == UAL_ACTIVE)
+ return VMS_to_us(a->remain);
+ else
+ return 0;
+}
+
+
+
+static void
+ualarm_AST(Alarm *a)
+{
+ int iss;
+ unsigned long now[2];
+
+ iss = sys$gettim(now);
+ if (VMSERR(iss)) lib$signal(iss);
+
+ if (a->function == UAL_SET || a->function == UAL_CLEAR) {
+ if (a0->function == UAL_ACTIVE) {
+ iss = sys$cantim(a0,PSL$C_USER);
+ if (VMSERR(iss)) lib$signal(iss);
+
+ iss = lib$subx(a0->remain, now, a->remain);
+ if (VMSERR(iss)) lib$signal(iss);
+
+ if (a->remain[1] & 0x80000000)
+ a->remain[0] = a->remain[1] = 0;
+ }
+
+ if (a->function == UAL_SET) {
+ a->function = a0->function;
+ a0->function = UAL_ACTIVE;
+ a0->repeat = a->repeat;
+ if (a0->repeat) {
+ a0->interval[0] = a->interval[0];
+ a0->interval[1] = a->interval[1];
+ }
+ a0->delay[0] = a->delay[0];
+ a0->delay[1] = a->delay[1];
+
+ iss = lib$subx(now, a0->delay, a0->remain);
+ if (VMSERR(iss)) lib$signal(iss);
+
+ iss = sys$setimr(0,a0->delay,ualarm_AST,a0);
+ if (VMSERR(iss)) lib$signal(iss);
+ } else {
+ a->function = a0->function;
+ a0->function = UAL_NULL;
+ }
+ iss = sys$setef(alarm_ef);
+ if (VMSERR(iss)) lib$signal(iss);
+ } else if (a->function == UAL_ACTIVE) {
+ if (a->repeat) {
+ iss = lib$subx(now, a->interval, a->remain);
+ if (VMSERR(iss)) lib$signal(iss);
+
+ iss = sys$setimr(0,a->interval,ualarm_AST,a);
+ if (VMSERR(iss)) lib$signal(iss);
+ } else {
+ a->function = UAL_NULL;
+ }
+ iss = sys$wake(0,0);
+ if (VMSERR(iss)) lib$signal(iss);
+ lib$signal(SS$_ASTFLT);
+ } else {
+ lib$signal(SS$_BADPARAM);
+ }
+}
+
+#endif /* #if !defined(HAS_UALARM) && defined(VMS) */
+
+#ifdef HAS_GETTIMEOFDAY
+
+static int
+myU2time(pTHX_ UV *ret)
{
struct timeval Tp;
int status;
status = gettimeofday (&Tp, NULL);
ret[0] = Tp.tv_sec;
ret[1] = Tp.tv_usec;
+ return status;
}
-static double
+static NV
myNVtime()
{
+#ifdef WIN32
+ dTHX;
+#endif
struct timeval Tp;
int status;
status = gettimeofday (&Tp, NULL);
- return Tp.tv_sec + (Tp.tv_usec / 1000000.);
+ 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
- hv_store(PL_modglobal, "Time::NVtime", 12, newSViv((IV) myNVtime), 0);
- hv_store(PL_modglobal, "Time::U2time", 12, newSViv((IV) myU2time), 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
+}
-#ifdef HAS_USLEEP
+#if defined(USE_ITHREADS) && defined(MY_CXT_KEY)
void
+CLONE(...)
+ CODE:
+ MY_CXT_CLONE;
+
+#endif
+
+INCLUDE: const-xs.inc
+
+#if defined(HAS_USLEEP) && defined(HAS_GETTIMEOFDAY)
+
+NV
usleep(useconds)
- int useconds
+ NV useconds
+ PREINIT:
+ struct timeval Ta, Tb;
+ CODE:
+ gettimeofday(&Ta, NULL);
+ if (items > 0) {
+ if (useconds > 1E6) {
+ IV seconds = (IV) (useconds / 1E6);
+ /* If usleep() has been implemented using setitimer()
+ * then this contortion is unnecessary-- but usleep()
+ * may be implemented in some other way, so let's contort. */
+ if (seconds) {
+ sleep(seconds);
+ useconds -= 1E6 * seconds;
+ }
+ } else if (useconds < 0.0)
+ croak("Time::HiRes::usleep(%"NVgf"): negative time not invented yet", useconds);
+ usleep((U32)useconds);
+ } else
+ PerlProc_pause();
+ gettimeofday(&Tb, NULL);
+#if 0
+ printf("[%ld %ld] [%ld %ld]\n", Tb.tv_sec, Tb.tv_usec, Ta.tv_sec, Ta.tv_usec);
+#endif
+ RETVAL = 1E6*(Tb.tv_sec-Ta.tv_sec)+(NV)((IV)Tb.tv_usec-(IV)Ta.tv_usec);
-void
-sleep(fseconds)
- double fseconds
+ OUTPUT:
+ RETVAL
+
+#if defined(TIME_HIRES_NANOSLEEP)
+
+NV
+nanosleep(nseconds)
+ NV nseconds
+ PREINIT:
+ struct timeval Ta, Tb;
CODE:
- int useconds = fseconds * 1000000;
- usleep (useconds);
+ 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:
+ struct timeval Ta, Tb;
+ CODE:
+ gettimeofday(&Ta, NULL);
+ if (items > 0) {
+ NV seconds = SvNV(ST(0));
+ if (seconds >= 0.0) {
+ UV useconds = (UV)(1E6 * (seconds - (UV)seconds));
+ if (seconds >= 1.0)
+ sleep((U32)seconds);
+ if ((IV)useconds < 0) {
+#if defined(__sparc64__) && defined(__GNUC__)
+ /* Sparc64 gcc 2.95.3 (e.g. on NetBSD) has a bug
+ * where (0.5 - (UV)(0.5)) will under certain
+ * circumstances (if the double is cast to UV more
+ * than once?) evaluate to -0.5, instead of 0.5. */
+ useconds = -(IV)useconds;
+#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);
+ }
+ usleep(useconds);
+ } else
+ croak("Time::HiRes::sleep(%"NVgf"): negative time not invented yet", seconds);
+ } else
+ PerlProc_pause();
+ gettimeofday(&Tb, NULL);
+#if 0
+ printf("[%ld %ld] [%ld %ld]\n", Tb.tv_sec, Tb.tv_usec, Ta.tv_sec, Ta.tv_usec);
#endif
+ RETVAL = (NV)(Tb.tv_sec-Ta.tv_sec)+0.000001*(NV)(Tb.tv_usec-Ta.tv_usec);
+
+ OUTPUT:
+ RETVAL
+
+#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
ualarm(useconds,interval=0)
int useconds
int interval
+ CODE:
+ if (useconds < 0 || interval < 0)
+ croak("Time::HiRes::ualarm(%d, %d): negative time not invented yet", useconds, interval);
+ RETVAL = ualarm(useconds, interval);
-int
-alarm(fseconds,finterval=0)
- double fseconds
- double finterval
- PREINIT:
- int useconds, uinterval;
+ OUTPUT:
+ RETVAL
+
+NV
+alarm(seconds,interval=0)
+ NV seconds
+ NV interval
CODE:
- useconds = fseconds * 1000000;
- uinterval = finterval * 1000000;
- RETVAL = ualarm (useconds, uinterval);
+ if (seconds < 0.0 || interval < 0.0)
+ croak("Time::HiRes::alarm(%"NVgf", %"NVgf"): negative time not invented yet", seconds, interval);
+ RETVAL = (NV)ualarm(seconds * 1000000,
+ interval * 1000000) / 1E6;
-#endif
+ OUTPUT:
+ RETVAL
+
+#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 */
+void
+gettimeofday()
+ PREINIT:
+ struct timeval Tp;
+ struct timezone Tz;
+ PPCODE:
+ int status;
+ status = gettimeofday (&Tp, &Tz);
+ 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
+time()
+ PREINIT:
+ struct timeval Tp;
+ struct timezone Tz;
+ CODE:
+ int status;
+ status = gettimeofday (&Tp, &Tz);
+ 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
+
+# else /* MACOS_TRADITIONAL */
void
gettimeofday()
PREINIT:
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))));
+ }
}
-double
+NV
time()
PREINIT:
struct timeval Tp;
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 /* #ifdef HAS_GETTIMEOFDAY */
+
+#if defined(HAS_GETITIMER) && defined(HAS_SETITIMER)
+
+#define TV2NV(tv) ((NV)((tv).tv_sec) + 0.000001 * (NV)((tv).tv_usec))
+
+void
+setitimer(which, seconds, interval = 0)
+ int which
+ NV seconds
+ NV interval
+ PREINIT:
+ struct itimerval newit;
+ struct itimerval oldit;
+ PPCODE:
+ if (seconds < 0.0 || interval < 0.0)
+ croak("Time::HiRes::setitimer(%"IVdf", %"NVgf", %"NVgf"): negative time not invented yet", (IV)which, seconds, interval);
+ newit.it_value.tv_sec = seconds;
+ newit.it_value.tv_usec =
+ (seconds - (NV)newit.it_value.tv_sec) * 1000000.0;
+ newit.it_interval.tv_sec = interval;
+ newit.it_interval.tv_usec =
+ (interval - (NV)newit.it_interval.tv_sec) * 1000000.0;
+ if (setitimer(which, &newit, &oldit) == 0) {
+ EXTEND(sp, 1);
+ PUSHs(sv_2mortal(newSVnv(TV2NV(oldit.it_value))));
+ if (GIMME == G_ARRAY) {
+ EXTEND(sp, 1);
+ PUSHs(sv_2mortal(newSVnv(TV2NV(oldit.it_interval))));
+ }
+ }
+
+void
+getitimer(which)
+ int which
+ PREINIT:
+ struct itimerval nowit;
+ PPCODE:
+ if (getitimer(which, &nowit) == 0) {
+ EXTEND(sp, 1);
+ PUSHs(sv_2mortal(newSVnv(TV2NV(nowit.it_value))));
+ if (GIMME == G_ARRAY) {
+ EXTEND(sp, 1);
+ PUSHs(sv_2mortal(newSVnv(TV2NV(nowit.it_interval))));
+ }
+ }
+
+#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) */
-# $Id: HiRes.xs,v 1.11 1999/03/16 02:27:38 wegscd Exp wegscd $
-
-# $Log: HiRes.xs,v $
-# Revision 1.11 1999/03/16 02:27:38 wegscd
-# Add U2time, NVtime. Fix symbols for static link.
-#
-# Revision 1.10 1998/09/30 02:36:25 wegscd
-# Add VMS changes.
-#
-# Revision 1.9 1998/07/07 02:42:06 wegscd
-# Win32 usleep()
-#
-# Revision 1.8 1998/07/02 01:47:26 wegscd
-# Add Win32 code for gettimeofday.
-#
-# Revision 1.7 1997/11/13 02:08:12 wegscd
-# Add missing EXTEND in gettimeofday() scalar code.
-#
-# Revision 1.6 1997/11/11 02:32:35 wegscd
-# Do something useful when calling gettimeofday() in a scalar context.
-# The patch is courtesy of Gisle Aas.
-#
-# Revision 1.5 1997/11/06 03:10:47 wegscd
-# Fake ualarm() if we have setitimer.
-#
-# Revision 1.4 1997/11/05 05:41:23 wegscd
-# Turn prototypes ON (suggested by Gisle Aas)
-#
-# Revision 1.3 1997/10/13 20:56:15 wegscd
-# Add PROTOTYPES: DISABLE
-#
-# Revision 1.2 1997/05/23 01:01:38 wegscd
-# Conditional compilation, depending on what the OS gives us.
-#
-# Revision 1.1 1996/09/03 18:26:35 wegscd
-# Initial revision
-#
-#
projects / p5sagit/p5-mst-13.2.git / blobdiff