#ifdef __cplusplus extern "C" { #endif #include "EXTERN.h" #include "perl.h" #include "XSUB.h" #ifdef WIN32 #include #else #include #endif #ifdef HAS_SELECT # ifdef I_SYS_SELECT # include # endif #endif #ifdef __cplusplus } #endif static IV constant(char *name, int arg) { errno = 0; switch (*name) { case 'I': if (strEQ(name, "ITIMER_REAL")) #ifdef ITIMER_REAL return ITIMER_REAL; #else goto not_there; #endif if (strEQ(name, "ITIMER_REALPROF")) #ifdef ITIMER_REALPROF return ITIMER_REALPROF; #else goto not_there; #endif if (strEQ(name, "ITIMER_VIRTUAL")) #ifdef ITIMER_VIRTUAL return ITIMER_VIRTUAL; #else goto not_there; #endif if (strEQ(name, "ITIMER_PROF")) #ifdef ITIMER_PROF return ITIMER_PROF; #else goto not_there; #endif break; } errno = EINVAL; return 0; not_there: errno = ENOENT; return 0; } #if !defined(HAS_GETTIMEOFDAY) && defined(WIN32) #define HAS_GETTIMEOFDAY /* shows up in winsock.h? struct timeval { long tv_sec; long tv_usec; } */ typedef union { unsigned __int64 ft_i64; FILETIME ft_val; } FT_t; /* 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) */ int gettimeofday (struct timeval *tp, void *not_used) { FT_t ft; /* this returns time in 100-nanosecond units (i.e. tens of usecs) */ GetSystemTimeAsFileTime(&ft.ft_val); /* 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(HAS_GETTIMEOFDAY) && defined(VMS) #define HAS_GETTIMEOFDAY #include #include /* gettimeofday */ #include /* qdiv */ #include /* sys$gettim */ #include #ifdef __VAX #include /* lib$ediv() */ #endif /* VMS binary time is expressed in 100 nano-seconds since system base time which is 17-NOV-1858 00:00:00.00 */ #define DIV_100NS_TO_SECS 10000000L #define DIV_100NS_TO_USECS 10L /* gettimeofday is supposed to return times since the epoch so need to determine this in terms of VMS base time */ 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$TIMEZONE_DIFFERENTIAL",off,0,fildev,0)) { gmtime_emulation_type++; utc_offset_secs = 0; Perl_warn(aTHX_ "no UTC offset information; assuming local time is UTC"); } else { utc_offset_secs = atol(off); } } else { /* We've got a working gmtime() */ struct tm gmt, local; gmt = *tm_p; tm_p = localtime(&base); local = *tm_p; utc_offset_secs = (local.tm_mday - gmt.tm_mday) * 86400; utc_offset_secs += (local.tm_hour - gmt.tm_hour) * 3600; utc_offset_secs += (local.tm_min - gmt.tm_min) * 60; utc_offset_secs += (local.tm_sec - gmt.tm_sec); } } return 1; } int gettimeofday (struct timeval *tp, void *tpz) { long ret; #ifdef __VAX long quad[2]; long quad1[2]; long div_100ns_to_secs; long div_100ns_to_usecs; long quo,rem; long quo1,rem1; #else __int64 quad; __qdiv_t ans1,ans2; #endif /* In case of error, tv_usec = 0 and tv_sec = VMS condition code. The return from function is also set to -1. This is not exactly as per the manual page. */ tp->tv_usec = 0; #ifdef __VAX if (base_adjust[0]==0 && base_adjust[1]==0) { #else if (base_adjust==0) { /* Need to determine epoch adjustment */ #endif ret=sys$bintim(&dscepoch,&base_adjust); if (1 != (ret &&1)) { tp->tv_sec = ret; return -1; } } 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$ediv(&div_100ns_to_usecs,&quad1,&quo1,&rem1); tp->tv_sec = quo; /* Whole seconds */ tp->tv_usec = quo1; /* Micro-seconds */ #else quad -= base_adjust; /* convert to epoch offset */ ans1=qdiv(quad,DIV_100NS_TO_SECS); ans2=qdiv(ans1.rem,DIV_100NS_TO_USECS); tp->tv_sec = ans1.quot; /* Whole seconds */ tp->tv_usec = ans2.quot; /* Micro-seconds */ #endif } else { tp->tv_sec = ret; return -1; } # ifdef VMSISH_TIME # ifdef RTL_USES_UTC if (VMSISH_TIME) tp->tv_sec = _toloc(tp->tv_sec); # else if (!VMSISH_TIME) tp->tv_sec = _toutc(tp->tv_sec); # endif # endif return 0; } #endif #if !defined(HAS_USLEEP) && defined(HAS_SELECT) #ifndef SELECT_IS_BROKEN #define HAS_USLEEP #define usleep hrt_usleep /* could conflict with ncurses for static build */ void hrt_usleep(unsigned long usec) { struct timeval tv; tv.tv_sec = 0; tv.tv_usec = usec; select(0, (Select_fd_set_t)NULL, (Select_fd_set_t)NULL, (Select_fd_set_t)NULL, &tv); } #endif #endif #if !defined(HAS_USLEEP) && defined(WIN32) #define HAS_USLEEP #define usleep hrt_usleep /* could conflict with ncurses for static build */ void hrt_usleep(unsigned long usec) { long msec; msec = usec / 1000; Sleep (msec); } #endif #if !defined(HAS_UALARM) && defined(HAS_SETITIMER) #define HAS_UALARM #define ualarm hrt_ualarm /* could conflict with ncurses for static build */ int hrt_ualarm(int usec, int interval) { struct itimerval itv; itv.it_value.tv_sec = usec / 1000000; itv.it_value.tv_usec = usec % 1000000; itv.it_interval.tv_sec = interval / 1000000; itv.it_interval.tv_usec = interval % 1000000; return setitimer(ITIMER_REAL, &itv, 0); } #endif #if !defined(HAS_UALARM) && defined(VMS) #define HAS_UALARM #define ualarm vms_ualarm #include #include #include #include #include #include #include #define VMSERR(s) (!((s)&1)) static void us_to_VMS(useconds_t mseconds, unsigned long v[]) { int iss; unsigned long qq[2]; qq[0] = mseconds; qq[1] = 0; v[0] = v[1] = 0; iss = lib$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 /* !HAS_UALARM && VMS */ #ifdef HAS_GETTIMEOFDAY static int myU2time(UV *ret) { struct timeval Tp; int status; status = gettimeofday (&Tp, NULL); ret[0] = Tp.tv_sec; ret[1] = Tp.tv_usec; return status; } static NV myNVtime() { struct timeval Tp; int status; status = gettimeofday (&Tp, NULL); return status == 0 ? Tp.tv_sec + (Tp.tv_usec / 1000000.) : -1.0; } #endif MODULE = Time::HiRes PACKAGE = Time::HiRes PROTOTYPES: ENABLE BOOT: #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); } #endif IV constant(name, arg) char * name int arg #if defined(HAS_USLEEP) && defined(HAS_GETTIMEOFDAY) NV usleep(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((UV)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); OUTPUT: RETVAL 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 = 1E6 * (seconds - (UV)seconds); if (seconds >= 1.0) sleep((UV)seconds); 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 #endif #ifdef HAS_UALARM int 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); OUTPUT: RETVAL NV alarm(seconds,interval=0) NV seconds NV interval CODE: 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; OUTPUT: RETVAL #endif #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); 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); Tp.tv_sec += Tz.tz_minuteswest * 60; /* adjust for TZ */ RETVAL = Tp.tv_sec + (Tp.tv_usec / 1000000.0); OUTPUT: RETVAL # else /* MACOS_TRADITIONAL */ void gettimeofday() PREINIT: struct timeval Tp; 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)))); } NV time() PREINIT: struct timeval Tp; CODE: int status; status = gettimeofday (&Tp, NULL); RETVAL = Tp.tv_sec + (Tp.tv_usec / 1000000.); OUTPUT: RETVAL # endif /* MACOS_TRADITIONAL */ #endif #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", 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 # $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 # #