X-Git-Url: http://git.shadowcat.co.uk/gitweb/gitweb.cgi?a=blobdiff_plain;f=ext%2FTime%2FHiRes%2FHiRes.xs;h=9d3586dee8325d74b05d4474371f564e0f9e58b7;hb=6e3b076d535420d10e4d928a62445e7e7b46eef7;hp=db0592aac2bf8a7a73d4f2cf53e9e6fee3ea5821;hpb=c6c619a96fa11b09bef26d0c724b6cfd0bdbb34b;p=p5sagit%2Fp5-mst-13.2.git diff --git a/ext/Time/HiRes/HiRes.xs b/ext/Time/HiRes/HiRes.xs index db0592a..9d3586d 100644 --- a/ext/Time/HiRes/HiRes.xs +++ b/ext/Time/HiRes/HiRes.xs @@ -9,6 +9,11 @@ extern "C" { #else #include #endif +#ifdef HAS_SELECT +# ifdef I_SYS_SELECT +# include +# endif +#endif #ifdef __cplusplus } #endif @@ -63,35 +68,50 @@ struct timeval { } */ +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, int nothing) +gettimeofday (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; + 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 @@ -107,15 +127,111 @@ gettimeofday (struct timeval *tp, int nothing) */ 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$TIMEZONE_DIFFERENTIAL",off,0,fildev,0)) { + gmtime_emulation_type++; + utc_offset_secs = 0; + Perl_warn(aTHX_ "no UTC offset information; assuming local time is UTC"); + } + else { utc_offset_secs = atol(off); } + } + else { /* We've got a working gmtime() */ + struct tm gmt, local; + + gmt = *tm_p; + tm_p = localtime(&base); + local = *tm_p; + utc_offset_secs = (local.tm_mday - gmt.tm_mday) * 86400; + utc_offset_secs += (local.tm_hour - gmt.tm_hour) * 3600; + utc_offset_secs += (local.tm_min - gmt.tm_min) * 60; + utc_offset_secs += (local.tm_sec - gmt.tm_sec); + } + } + return 1; +} + int gettimeofday (struct timeval *tp, void *tpz) { long ret; +#ifdef __VAX + long quad[2]; + long quad1[2]; + long div_100ns_to_secs; + long div_100ns_to_usecs; + long quo,rem; + long quo1,rem1; +#else __int64 quad; __qdiv_t ans1,ans2; - +#endif /* In case of error, tv_usec = 0 and tv_sec = VMS condition code. The return from function is also set to -1. @@ -124,7 +240,11 @@ gettimeofday (struct timeval *tp, void *tpz) tp->tv_usec = 0; +#ifdef __VAX + if (base_adjust[0]==0 && base_adjust[1]==0) { +#else if (base_adjust==0) { /* Need to determine epoch adjustment */ +#endif ret=sys$bintim(&dscepoch,&base_adjust); if (1 != (ret &&1)) { tp->tv_sec = ret; @@ -134,15 +254,35 @@ gettimeofday (struct timeval *tp, void *tpz) 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$ediv(&div_100ns_to_usecs,&quad1,&quo1,&rem1); + tp->tv_sec = quo; /* Whole seconds */ + tp->tv_usec = quo1; /* Micro-seconds */ +#else quad -= base_adjust; /* convert to epoch offset */ ans1=qdiv(quad,DIV_100NS_TO_SECS); ans2=qdiv(ans1.rem,DIV_100NS_TO_USECS); tp->tv_sec = ans1.quot; /* Whole seconds */ tp->tv_usec = ans2.quot; /* Micro-seconds */ +#endif } else { tp->tv_sec = ret; return -1; } +# ifdef VMSISH_TIME +# ifdef RTL_USES_UTC + if (VMSISH_TIME) tp->tv_sec = _toloc(tp->tv_sec); +# else + if (!VMSISH_TIME) tp->tv_sec = _toutc(tp->tv_sec); +# endif +# endif return 0; } #endif @@ -194,6 +334,205 @@ hrt_ualarm(int usec, int interval) } #endif +#if !defined(HAS_UALARM) && defined(VMS) +#define HAS_UALARM +#define ualarm vms_ualarm + +#include +#include +#include +#include +#include +#include +#include + +#define VMSERR(s) (!((s)&1)) + +static void +us_to_VMS(useconds_t mseconds, unsigned long v[]) +{ + int iss; + unsigned long qq[2]; + + qq[0] = mseconds; + qq[1] = 0; + v[0] = v[1] = 0; + + iss = lib$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 @@ -226,7 +565,7 @@ BOOT: #ifdef HAS_GETTIMEOFDAY { UV auv[2]; - hv_store(PL_modglobal, "Time::NVtime", 12, newSViv((IV) myNVtime()), 0); + 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); } @@ -237,18 +576,64 @@ constant(name, arg) char * name int arg -#ifdef HAS_USLEEP +#if defined(HAS_USLEEP) && defined(HAS_GETTIMEOFDAY) -void +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((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); -void -sleep(fseconds) - NV fseconds + OUTPUT: + RETVAL + +NV +sleep(...) + PREINIT: + struct timeval Ta, Tb; CODE: - int useconds = fseconds * 1000000; - usleep (useconds); + 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((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 @@ -258,17 +643,23 @@ 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); -int -alarm(fseconds,finterval=0) - NV fseconds - NV 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; OUTPUT: RETVAL @@ -276,7 +667,41 @@ alarm(fseconds,finterval=0) #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: @@ -304,6 +729,7 @@ time() OUTPUT: RETVAL +# endif /* MACOS_TRADITIONAL */ #endif #if defined(HAS_GETITIMER) && defined(HAS_SETITIMER) @@ -319,6 +745,8 @@ setitimer(which, seconds, interval = 0) 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;