| /* |
| * |
| * Copyright (c) 1996-2002 Douglas E. Wegscheid. All rights reserved. |
| * |
| * Copyright (c) 2002-2010 Jarkko Hietaniemi. |
| * All rights reserved. |
| * |
| * Copyright (C) 2011, 2012 Andrew Main (Zefram) <zefram@fysh.org> |
| * |
| * 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> |
| #else |
| # 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 |
| |
| /* At least ppport.h 3.13 gets this wrong: one really cannot |
| * have NVgf as anything else than "g" under Perl 5.6.x. */ |
| #if PERL_REVISION == 5 && PERL_VERSION == 6 |
| # undef NVgf |
| # define NVgf "g" |
| #endif |
| |
| #define IV_1E6 1000000 |
| #define IV_1E7 10000000 |
| #define IV_1E9 1000000000 |
| |
| #define NV_1E6 1000000.0 |
| #define NV_1E7 10000000.0 |
| #define NV_1E9 1000000000.0 |
| |
| #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 |
| |
| #if defined(TIME_HIRES_CLOCK_GETTIME) && defined(_STRUCT_ITIMERSPEC) |
| |
| /* HP-UX has CLOCK_XXX values but as enums, not as defines. |
| * The only way to detect these would be to test compile for each. */ |
| # ifdef __hpux |
| /* However, it seems that at least in HP-UX 11.31 ia64 there *are* |
| * defines for these, so let's try detecting them. */ |
| # ifndef CLOCK_REALTIME |
| # define CLOCK_REALTIME CLOCK_REALTIME |
| # define CLOCK_VIRTUAL CLOCK_VIRTUAL |
| # define CLOCK_PROFILE CLOCK_PROFILE |
| # endif |
| # endif /* # ifdef __hpux */ |
| |
| #endif /* #if defined(TIME_HIRES_CLOCK_GETTIME) && defined(_STRUCT_ITIMERSPEC) */ |
| |
| #if defined(WIN32) || defined(CYGWIN_WITH_W32API) |
| |
| #ifndef HAS_GETTIMEOFDAY |
| # define HAS_GETTIMEOFDAY |
| #endif |
| |
| /* shows up in winsock.h? |
| struct timeval { |
| long tv_sec; |
| long tv_usec; |
| } |
| */ |
| |
| 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) |
| |
| #ifdef Const64 |
| # ifdef __GNUC__ |
| # define IV_1E6LL 1000000LL /* Needed because of Const64() ##-appends LL (or i64). */ |
| # define IV_1E7LL 10000000LL |
| # define IV_1E9LL 1000000000LL |
| # else |
| # define IV_1E6i64 1000000i64 |
| # define IV_1E7i64 10000000i64 |
| # define IV_1E9i64 1000000000i64 |
| # endif |
| #endif |
| |
| /* 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) |
| { |
| 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(IV_1E7) * (ticks / MY_CXT.tick_frequency) |
| +(Const64(IV_1E7) * (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(IV_1E7)); |
| |
| /* microseconds remaining */ |
| tp->tv_usec = (long)((ft.ft_i64 / Const64(10)) % Const64(IV_1E6)); |
| |
| 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 |
| 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 |
| |
| |
| /* Do not use H A S _ N A N O S L E E P |
| * so that Perl Configure doesn't scan for it (and pull in -lrt and |
| * the like which are not usually good ideas for the default Perl). |
| * (We are part of the core perl now.) |
| * The TIME_HIRES_NANOSLEEP is set by Makefile.PL. */ |
| #if !defined(HAS_USLEEP) && defined(TIME_HIRES_NANOSLEEP) |
| #define HAS_USLEEP |
| #define usleep hrt_usleep /* could conflict with ncurses for static build */ |
| |
| void |
| hrt_usleep(unsigned long usec) /* This is used to emulate usleep. */ |
| { |
| struct timespec res; |
| res.tv_sec = usec / IV_1E6; |
| res.tv_nsec = ( usec - res.tv_sec * IV_1E6 ) * 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 |
| #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(HAS_SELECT) */ |
| |
| #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_USLEEP) && defined(WIN32) */ |
| |
| #if !defined(HAS_USLEEP) && defined(HAS_POLL) |
| #define HAS_USLEEP |
| #define usleep hrt_usleep /* could conflict with ncurses for static build */ |
| |
| void |
| hrt_usleep(unsigned long usec) |
| { |
| int msec = usec / 1000; |
| poll(0, 0, msec); |
| } |
| |
| #endif /* #if !defined(HAS_USLEEP) && defined(HAS_POLL) */ |
| |
| #if defined(HAS_SETITIMER) && defined(ITIMER_REAL) |
| |
| static int |
| hrt_ualarm_itimero(struct itimerval *oitv, int usec, int uinterval) |
| { |
| struct itimerval itv; |
| itv.it_value.tv_sec = usec / IV_1E6; |
| itv.it_value.tv_usec = usec % IV_1E6; |
| itv.it_interval.tv_sec = uinterval / IV_1E6; |
| itv.it_interval.tv_usec = uinterval % IV_1E6; |
| return setitimer(ITIMER_REAL, &itv, oitv); |
| } |
| |
| int |
| hrt_ualarm_itimer(int usec, int uinterval) |
| { |
| return hrt_ualarm_itimero(NULL, usec, uinterval); |
| } |
| |
| #ifdef HAS_UALARM |
| int |
| hrt_ualarm(int usec, int interval) /* for binary compat before 1.91 */ |
| { |
| return hrt_ualarm_itimer(usec, interval); |
| } |
| #endif /* #ifdef HAS_UALARM */ |
| #endif /* #if !defined(HAS_UALARM) && defined(HAS_SETITIMER) */ |
| |
| #if !defined(HAS_UALARM) && defined(HAS_SETITIMER) |
| #define HAS_UALARM |
| #define ualarm hrt_ualarm_itimer /* could conflict with ncurses for static build */ |
| #endif |
| |
| #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 |
| 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 NV |
| myNVtime() |
| { |
| #ifdef WIN32 |
| dTHX; |
| #endif |
| struct timeval Tp; |
| int status; |
| status = gettimeofday (&Tp, NULL); |
| return status == 0 ? Tp.tv_sec + (Tp.tv_usec / NV_1E6) : -1.0; |
| } |
| |
| #endif /* #ifdef HAS_GETTIMEOFDAY */ |
| |
| static void |
| hrstatns(UV *atime_nsec, UV *mtime_nsec, UV *ctime_nsec) |
| { |
| dTHXR; |
| #if TIME_HIRES_STAT == 1 |
| *atime_nsec = PL_statcache.st_atimespec.tv_nsec; |
| *mtime_nsec = PL_statcache.st_mtimespec.tv_nsec; |
| *ctime_nsec = PL_statcache.st_ctimespec.tv_nsec; |
| #elif TIME_HIRES_STAT == 2 |
| *atime_nsec = PL_statcache.st_atimensec; |
| *mtime_nsec = PL_statcache.st_mtimensec; |
| *ctime_nsec = PL_statcache.st_ctimensec; |
| #elif TIME_HIRES_STAT == 3 |
| *atime_nsec = PL_statcache.st_atime_n; |
| *mtime_nsec = PL_statcache.st_mtime_n; |
| *ctime_nsec = PL_statcache.st_ctime_n; |
| #elif TIME_HIRES_STAT == 4 |
| *atime_nsec = PL_statcache.st_atim.tv_nsec; |
| *mtime_nsec = PL_statcache.st_mtim.tv_nsec; |
| *ctime_nsec = PL_statcache.st_ctim.tv_nsec; |
| #elif TIME_HIRES_STAT == 5 |
| *atime_nsec = PL_statcache.st_uatime * 1000; |
| *mtime_nsec = PL_statcache.st_umtime * 1000; |
| *ctime_nsec = PL_statcache.st_uctime * 1000; |
| #else /* !TIME_HIRES_STAT */ |
| *atime_nsec = 0; |
| *mtime_nsec = 0; |
| *ctime_nsec = 0; |
| #endif /* !TIME_HIRES_STAT */ |
| } |
| |
| #include "const-c.inc" |
| |
| MODULE = Time::HiRes PACKAGE = Time::HiRes |
| |
| PROTOTYPES: ENABLE |
| |
| BOOT: |
| { |
| #ifdef MY_CXT_KEY |
| MY_CXT_INIT; |
| #endif |
| #ifdef ATLEASTFIVEOHOHFIVE |
| # ifdef HAS_GETTIMEOFDAY |
| { |
| (void) hv_store(PL_modglobal, "Time::NVtime", 12, |
| newSViv(PTR2IV(myNVtime)), 0); |
| (void) 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 |
| |
| #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((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); |
| |
| OUTPUT: |
| RETVAL |
| |
| #if defined(TIME_HIRES_NANOSLEEP) |
| |
| NV |
| nanosleep(nsec) |
| NV nsec |
| PREINIT: |
| struct timespec sleepfor, unslept; |
| CODE: |
| if (nsec < 0.0) |
| croak("Time::HiRes::nanosleep(%"NVgf"): negative time not invented yet", nsec); |
| sleepfor.tv_sec = (Time_t)(nsec / 1e9); |
| sleepfor.tv_nsec = (long)(nsec - ((NV)sleepfor.tv_sec) * 1e9); |
| if (!nanosleep(&sleepfor, &unslept)) { |
| RETVAL = nsec; |
| } else { |
| sleepfor.tv_sec -= unslept.tv_sec; |
| sleepfor.tv_nsec -= unslept.tv_nsec; |
| if (sleepfor.tv_nsec < 0) { |
| sleepfor.tv_sec--; |
| sleepfor.tv_nsec += 1000000000; |
| } |
| RETVAL = ((NV)sleepfor.tv_sec) * 1e9 + ((NV)sleepfor.tv_nsec); |
| } |
| OUTPUT: |
| RETVAL |
| |
| #else /* #if defined(TIME_HIRES_NANOSLEEP) */ |
| |
| NV |
| nanosleep(nsec) |
| NV nsec |
| CODE: |
| croak("Time::HiRes::nanosleep(): unimplemented in this platform"); |
| RETVAL = 0.0; |
| OUTPUT: |
| RETVAL |
| |
| #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; |
| OUTPUT: |
| RETVAL |
| |
| #endif /* #if defined(HAS_USLEEP) && defined(HAS_GETTIMEOFDAY) */ |
| |
| #ifdef HAS_UALARM |
| |
| IV |
| ualarm(useconds,uinterval=0) |
| int useconds |
| int uinterval |
| CODE: |
| if (useconds < 0 || uinterval < 0) |
| croak("Time::HiRes::ualarm(%d, %d): negative time not invented yet", useconds, uinterval); |
| #if defined(HAS_SETITIMER) && defined(ITIMER_REAL) |
| { |
| struct itimerval itv; |
| if (hrt_ualarm_itimero(&itv, useconds, uinterval)) { |
| /* To conform to ualarm's interface, we're actually ignoring |
| an error here. */ |
| RETVAL = 0; |
| } else { |
| RETVAL = itv.it_value.tv_sec * IV_1E6 + itv.it_value.tv_usec; |
| } |
| } |
| #else |
| if (useconds >= IV_1E6 || uinterval >= IV_1E6) |
| croak("Time::HiRes::ualarm(%d, %d): useconds or uinterval equal to or more than %"IVdf, useconds, uinterval, IV_1E6); |
| RETVAL = ualarm(useconds, uinterval); |
| #endif |
| |
| 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); |
| { |
| IV useconds = IV_1E6 * seconds; |
| IV uinterval = IV_1E6 * interval; |
| #if defined(HAS_SETITIMER) && defined(ITIMER_REAL) |
| { |
| struct itimerval itv; |
| if (hrt_ualarm_itimero(&itv, useconds, uinterval)) { |
| /* To conform to alarm's interface, we're actually ignoring |
| an error here. */ |
| RETVAL = 0; |
| } else { |
| RETVAL = itv.it_value.tv_sec + ((NV)itv.it_value.tv_usec) / NV_1E6; |
| } |
| } |
| #else |
| if (useconds >= IV_1E6 || uinterval >= IV_1E6) |
| croak("Time::HiRes::alarm(%d, %d): seconds or interval equal to or more than 1.0 ", useconds, uinterval, IV_1E6); |
| RETVAL = (NV)ualarm( useconds, uinterval ) / NV_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; |
| OUTPUT: |
| RETVAL |
| |
| NV |
| alarm(seconds,interval=0) |
| NV seconds |
| NV interval |
| CODE: |
| croak("Time::HiRes::alarm(): unimplemented in this platform"); |
| RETVAL = 0.0; |
| OUTPUT: |
| RETVAL |
| |
| #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 / NV_1E6)))); |
| } |
| } |
| |
| 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 / NV_1E6); |
| } else { |
| RETVAL = -1.0; |
| } |
| OUTPUT: |
| RETVAL |
| |
| # else /* MACOS_TRADITIONAL */ |
| void |
| gettimeofday() |
| PREINIT: |
| struct timeval Tp; |
| PPCODE: |
| int status; |
| status = gettimeofday (&Tp, NULL); |
| 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 / NV_1E6)))); |
| } |
| } |
| |
| NV |
| time() |
| PREINIT: |
| struct timeval Tp; |
| CODE: |
| int status; |
| status = gettimeofday (&Tp, NULL); |
| if (status == 0) { |
| RETVAL = Tp.tv_sec + (Tp.tv_usec / NV_1E6); |
| } 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 = (IV)seconds; |
| newit.it_value.tv_usec = |
| (IV)((seconds - (NV)newit.it_value.tv_sec) * NV_1E6); |
| newit.it_interval.tv_sec = (IV)interval; |
| newit.it_interval.tv_usec = |
| (IV)((interval - (NV)newit.it_interval.tv_sec) * NV_1E6); |
| 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; |
| OUTPUT: |
| RETVAL |
| |
| #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; |
| OUTPUT: |
| RETVAL |
| |
| #endif /* #if defined(TIME_HIRES_CLOCK_GETRES) */ |
| |
| #if defined(TIME_HIRES_CLOCK_NANOSLEEP) && defined(TIMER_ABSTIME) |
| |
| NV |
| clock_nanosleep(clock_id, nsec, flags = 0) |
| int clock_id |
| NV nsec |
| int flags |
| PREINIT: |
| struct timespec sleepfor, unslept; |
| CODE: |
| if (nsec < 0.0) |
| croak("Time::HiRes::clock_nanosleep(..., %"NVgf"): negative time not invented yet", nsec); |
| sleepfor.tv_sec = (Time_t)(nsec / 1e9); |
| sleepfor.tv_nsec = (long)(nsec - ((NV)sleepfor.tv_sec) * 1e9); |
| if (!clock_nanosleep(clock_id, flags, &sleepfor, &unslept)) { |
| RETVAL = nsec; |
| } else { |
| sleepfor.tv_sec -= unslept.tv_sec; |
| sleepfor.tv_nsec -= unslept.tv_nsec; |
| if (sleepfor.tv_nsec < 0) { |
| sleepfor.tv_sec--; |
| sleepfor.tv_nsec += 1000000000; |
| } |
| RETVAL = ((NV)sleepfor.tv_sec) * 1e9 + ((NV)sleepfor.tv_nsec); |
| } |
| OUTPUT: |
| RETVAL |
| |
| #else /* if defined(TIME_HIRES_CLOCK_NANOSLEEP) && defined(TIMER_ABSTIME) */ |
| |
| NV |
| clock_nanosleep(clock_id, nsec, flags = 0) |
| CODE: |
| croak("Time::HiRes::clock_nanosleep(): unimplemented in this platform"); |
| RETVAL = 0.0; |
| OUTPUT: |
| RETVAL |
| |
| #endif /* #if defined(TIME_HIRES_CLOCK_NANOSLEEP) && defined(TIMER_ABSTIME) */ |
| |
| #if defined(TIME_HIRES_CLOCK) && defined(CLOCKS_PER_SEC) |
| |
| NV |
| clock() |
| PREINIT: |
| clock_t clocks; |
| CODE: |
| clocks = clock(); |
| RETVAL = clocks == -1 ? -1 : (NV)clocks / (NV)CLOCKS_PER_SEC; |
| |
| OUTPUT: |
| RETVAL |
| |
| #else /* if defined(TIME_HIRES_CLOCK) && defined(CLOCKS_PER_SEC) */ |
| |
| NV |
| clock() |
| CODE: |
| croak("Time::HiRes::clock(): unimplemented in this platform"); |
| RETVAL = 0.0; |
| OUTPUT: |
| RETVAL |
| |
| #endif /* #if defined(TIME_HIRES_CLOCK) && defined(CLOCKS_PER_SEC) */ |
| |
| void |
| stat(...) |
| PROTOTYPE: ;$ |
| PPCODE: |
| XPUSHs(sv_2mortal(newSVsv(items == 1 ? ST(0) : DEFSV))); |
| PUTBACK; |
| ENTER; |
| PL_laststatval = -1; |
| (void)*(PL_ppaddr[OP_STAT])(aTHXR); |
| SPAGAIN; |
| LEAVE; |
| if (PL_laststatval == 0) { |
| /* We assume that pp_stat() left us with 13 valid stack items, |
| * and that the timestamps are at offsets 8, 9, and 10. */ |
| UV atime = SvUV(ST( 8)); |
| UV mtime = SvUV(ST( 9)); |
| UV ctime = SvUV(ST(10)); |
| UV atime_nsec; |
| UV mtime_nsec; |
| UV ctime_nsec; |
| hrstatns(&atime_nsec, &mtime_nsec, &ctime_nsec); |
| if (atime_nsec) |
| ST( 8) = sv_2mortal(newSVnv(atime + 1e-9 * (NV) atime_nsec)); |
| if (mtime_nsec) |
| ST( 9) = sv_2mortal(newSVnv(mtime + 1e-9 * (NV) mtime_nsec)); |
| if (ctime_nsec) |
| ST(10) = sv_2mortal(newSVnv(ctime + 1e-9 * (NV) ctime_nsec)); |
| XSRETURN(13); |
| } |
| XSRETURN(0); |