1 { Copyright (C) 2005 Bas Steendijk and Peter Green
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2 For conditions of distribution and use, see copyright notice in zlib_license.txt
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3 which is included in the package
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4 ----------------------------------------------------------------------------- }
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6 this unit returns unix timestamp with seconds and microseconds (as float)
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7 works on windows/delphi, and on freepascal on unix.
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16 {$include lcoreconfig.inc}
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27 tunixtimeint={$ifdef ver100}longint;{$else}int64;{$endif}
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30 colorburst=39375000/11; {3579545.4545....}
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35 irctime,unixtime:tunixtimeint;
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37 settimebias:tunixtimeint;
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38 performancecountfreq:extended;
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39 btimenowin8:boolean;
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41 function irctimefloat:float;
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42 function irctimeint:tunixtimeint;
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44 //unix timestamp (UTC) float seconds
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45 function unixtimefloat:float;
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46 function unixtimeint:tunixtimeint;
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48 //monotonic float seconds
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49 function monotimefloat:float;
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51 //monotonic (alias, old function name)
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52 function wintimefloat:float;
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54 procedure settime(newtime:tunixtimeint);
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55 procedure gettimezone;
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56 procedure timehandler;
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59 function timestring(i:tunixtimeint):string; // Wednesday August 15 2012 -- 16:21:09 +02:00
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60 function timestrshort(i:tunixtimeint):string; // Wed Aug 15 16:21:09 2012
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61 function timestriso(i:tunixtimeint):string; // 2012-08-15 16:21:09
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62 function timestrisoutc(i:float):string; // 2012-08-15T14:21:09.255553Z
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64 procedure beginhightimerrate;
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65 procedure endhightimerrate;
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67 procedure tzinvalidate;
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70 function tzgetoffsetforts(ts:tunixtimeint):integer;
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74 function unixtimefloat_systemtime:float;
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77 function oletounixfloat(t:float):float;
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78 function oletounix(t:tdatetime):tunixtimeint;
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79 function unixtoole(i:float):tdatetime;
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82 function mmtimefloat:float;
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83 function qpctimefloat:float;
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87 procedure gettimeofday(var tv:ttimeval);
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92 mmtime_driftavgsize=32;
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94 mmtime_warmupcyclelength=15;
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96 //this flag is to be set when btime has been running long enough to stabilise
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97 warmup_finished:boolean;
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99 timefloatbias:float;
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100 ticks_freq:float=0;
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101 ticks_freq2:float=0;
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102 ticks_freq_known:boolean=false;
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103 lastunixtimefloat:float=0;
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104 lastsynctime:float=0;
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105 lastsyncbias:float=0;
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107 mmtime_last:integer=0;
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108 mmtime_wrapadd:float;
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109 mmtime_lastsyncmm:float=0;
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110 mmtime_lastsyncqpc:float=0;
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111 mmtime_drift:float=1;
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112 mmtime_lastresult:float;
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113 mmtime_nextdriftcorrection:float;
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114 mmtime_driftavg:array[0..mmtime_driftavgsize] of float;
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115 mmtime_synchedqpc:boolean;
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117 mmtime_prev_drift:float;
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118 mmtime_prev_lastsyncmm:float;
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119 mmtime_prev_lastsyncqpc:float;
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130 {$ifdef linux}linux,{$endif} //for clock_gettime
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131 {$ifdef freebsd}freebsd,{$endif} //for clock_gettime
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132 baseunix,unix,unixutil,sockets, {unixutil and sockets needed by unixstuff.inc on some compiler versions}
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135 windows,unitsettc,mmsystem,
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139 {$include unixstuff.inc}
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143 daysdifference=25569;
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145 function oletounixfloat(t:float):float;
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147 t := (t - daysdifference) * 86400;
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151 function oletounix(t:tdatetime):tunixtimeint;
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153 result := round(oletounixfloat(t));
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156 function unixtoole(i:float):tdatetime;
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158 result := ((i)/86400)+daysdifference;
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162 highdwordconst=65536.0 * 65536.0;
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164 function utrunc(f:float):integer;
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165 {converts float to integer, in 32 bits unsigned range}
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167 if f >= (highdwordconst/2) then f := f - highdwordconst;
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168 result := trunc(f);
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171 function uinttofloat(i:integer):float;
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172 {converts 32 bits unsigned integer to float}
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175 if result < 0 then result := result + highdwordconst;
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179 {-----------------------------------------*nix/freepascal code to read time }
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181 function unixtimefloat:float;
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189 if (sec < -1) then inc(sec,$100000000); //tv_sec is 32 bits. allow -1 for invalid result
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191 result := sec+(tv.tv_usec/1000000);
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194 {$ifdef linux}{$define have_clock_gettime}{$endif}
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195 {$ifdef freebsd}{$define have_clock_gettime}{$endif}
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197 {$ifdef have_clock_gettime}
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198 {$define monotimefloat_implemented}
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200 function monotimefloat:float;
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204 if clock_gettime(CLOCK_MONOTONIC, @ts) = 0 then begin
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205 //note this really returns nanoseconds
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206 result := ts.tv_sec + ts.tv_nsec / 1000000000.0;
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210 result := unixtimefloat;
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216 {$ifdef darwin} {mac OS X}
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217 {$define monotimefloat_implemented}
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220 tmach_timebase_info = packed record
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224 pmach_timebase_info = ^tmach_timebase_info;
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226 function mach_absolute_time: int64; cdecl; external;
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227 function mach_timebase_info(info: pmach_timebase_info): integer; cdecl; external;
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230 timebase_info: tmach_timebase_info;
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232 function monotimefloat:float;
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236 if timebase_info.denom = 0 then begin
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237 mach_timebase_info(@timebase_info);
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239 i := mach_absolute_time;
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240 result := (i * timebase_info.numer div timebase_info.denom) / 1000000000.0;
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243 {$endif} {darwin, mac OS X}
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246 {$ifndef monotimefloat_implemented} {fallback}
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248 function monotimefloat:extended;
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250 result := unixtimefloat;
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253 {$endif} {monotimefloat fallback}
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256 function unixtimeint:tunixtimeint;
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264 if (sec < -1) then inc(sec,$100000000); //tv_sec is 32 bits. allow -1 for invalid result
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269 {------------------------------ end of *nix/freepascal section}
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272 {------------------------------ windows/delphi code to read time}
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275 procedure tzinvalidate;
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280 {simulate gettimeofday on windows so one can always use gettimeofday if preferred}
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282 procedure gettimeofday(var tv:ttimeval);
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286 e := unixtimefloat;
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287 tv.tv_sec := round(int(e));
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288 tv.tv_usec := trunc(frac(e)*1000000);
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290 if (tv.tv_usec < 0) then tv.tv_usec := 0;
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291 if (tv.tv_usec > 999999) then tv.tv_usec := 999999;
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296 time float: gettickcount
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297 resolution: 9x: ~55 ms NT: 1/64th of a second
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298 guarantees: continuous without any jumps
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299 frequency base: same as system clock.
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301 note: if called more than once per 49.7 days, 32 bits wrapping is compensated for and it keeps going on.
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302 note: i handle the timestamp as signed integer, but with the wrap compensation that works as well, and is faster
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305 function mmtimefloat:float;
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307 wrapduration=highdwordconst * 0.001;
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312 i := gettickcount; {timegettime}
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313 if i < mmtime_last then begin
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314 mmtime_wrapadd := mmtime_wrapadd + wrapduration;
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317 result := mmtime_wrapadd + i * 0.001;
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319 if (ticks_freq <> 0) and ticks_freq_known then begin
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320 {the value we get is rounded to 1 ms, but the ticks are not a multiple of 1 ms
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321 this makes the value noisy. use the known ticks frequency to restore the original value}
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322 temp := int((result / ticks_freq)+0.5) * ticks_freq;
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324 {if the known ticks freq is wrong (can happen), disable the un-rounding behavior
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325 this will be a bit less accurate but it prevents problems}
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326 if abs(temp - result) > 0.002 then begin
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328 end else result := temp;
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332 procedure measure_ticks_freq;
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338 adjust1,adjust2:cardinal;
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339 adjustbool:longbool;
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341 if (performancecountfreq = 0) then qpctimefloat;
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342 ticks_freq_known := false;
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345 repeat g := mmtimefloat until g > f;
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348 fillchar(o,sizeof(o),0);
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349 o.dwOSVersionInfoSize := sizeof(o);
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351 isnt := o.dwPlatformId = VER_PLATFORM_WIN32_NT;
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352 { is9x := o.dwPlatformId = VER_PLATFORM_WIN32_WINDOWS;}
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355 mmtime_synchedqpc := false;
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357 if (isnt and (o.dwMajorVersion >= 5)) then begin
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358 {windows 2000 and later: query tick rate from OS in 100 ns units
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359 typical rates: XP: 156250 or 100144, windows 7: 156001}
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360 if GetSystemTimeAdjustment(adjust1,adjust2,adjustbool) then begin
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361 ticks_freq := adjust1 / 10000000.0;
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362 ticks_freq_known := true;
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363 mmtime_synchedqpc := false;
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368 if (performancecountfreq = 1193182) and (f >= 0.050) and (f <= 0.060) then begin
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369 ticks_freq_known := true;
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370 ticks_freq := 65536 / (colorburst / 3);
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371 mmtime_synchedqpc := true;
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373 ticks_freq_known := true;
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374 if ticks_freq <> 0 then ticks_freq2 := ticks_freq;
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375 // writeln(formatfloat('0.000000',ticks_freq));
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379 time float: QueryPerformanceCounter
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381 guarantees: can have forward jumps depending on hardware. can have forward and backwards jitter on dual core.
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382 frequency base: on NT, not the system clock, drifts compared to it.
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385 function qpctimefloat:extended;
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391 p2:tlargeinteger absolute p;
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394 if performancecountfreq = 0 then begin
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395 QueryPerformancefrequency(p2);
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397 if e < 0 then e := e + highdwordconst;
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398 performancecountfreq := ((p.highpart*highdwordconst)+e);
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400 queryperformancecounter(p2);
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402 if e < 0 then e := e + highdwordconst;
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404 result := ((p.highpart*highdwordconst)+e)/performancecountfreq;
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408 time float: QPC locked to gettickcount
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410 guarantees: continuous without any jumps
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411 frequency base: same as system clock.
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415 function mmqpctimefloat:float;
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421 mm,f,qpc,newdrift:float;
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424 { retrycount:integer;}
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426 if not ticks_freq_known then measure_ticks_freq;
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427 { retrycount := maxretries;}
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429 qpc := qpctimefloat;
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431 f := (qpc - mmtime_lastsyncqpc) * mmtime_drift + mmtime_lastsyncmm;
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432 //writeln('XXXX ',formatfloat('0.000000',qpc-mm));
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433 qpcjumped := ((f-mm) > ticks_freq2+margin) or ((f-mm) < -margin);
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434 // if qpcjumped then writeln('qpc jumped ',(f-mm));
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435 if ((qpc > mmtime_nextdriftcorrection) and not mmtime_synchedqpc) or qpcjumped then begin
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437 mmtime_nextdriftcorrection := qpc + 1;
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439 mmtime_prev_drift := mmtime_drift;
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440 mmtime_prev_lastsyncmm := mmtime_lastsyncmm;
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441 mmtime_prev_lastsyncqpc := mmtime_lastsyncqpc;
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444 { dec(retrycount);}
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446 result := qpctimefloat;
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449 if f = mm then result := qpctimefloat;
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452 qpc := qpctimefloat;
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455 if (qpc > result + 0.0001) then begin
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460 if (mmtime_lastsyncqpc <> 0) and not qpcjumped then begin
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461 newdrift := (mm - mmtime_lastsyncmm) / (qpc - mmtime_lastsyncqpc);
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462 mmtime_drift := newdrift;
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463 { writeln('raw drift: ',formatfloat('0.00000000',mmtime_drift));}
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464 move(mmtime_driftavg[0],mmtime_driftavg[1],sizeof(mmtime_driftavg[0])*high(mmtime_driftavg));
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465 mmtime_driftavg[0] := mmtime_drift;
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467 { write('averaging drift ',formatfloat('0.00000000',mmtime_drift),' -> ');}
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468 { mmtime_drift := 0;}
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470 for a := 0 to high(mmtime_driftavg) do begin
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471 if mmtime_driftavg[a] <> 0 then inc(b);
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472 { mmtime_drift := mmtime_drift + mmtime_driftavg[a];}
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474 { mmtime_drift := mmtime_drift / b;}
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476 if (b = 1) then a := 5 else if (b = 2) then a := 15 else if (b = 3) then a := 30 else if (b = 4) then a := 60 else if (b = 5) then a := 120 else if (b >= 5) then a := 120;
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477 mmtime_nextdriftcorrection := qpc + a;
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478 if (b >= 2) then warmup_finished := true;
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479 { writeln(formatfloat('0.00000000',mmtime_drift));}
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480 if mmtime_synchedqpc then mmtime_drift := 1;
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483 mmtime_lastsyncqpc := qpc;
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484 mmtime_lastsyncmm := mm;
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485 { writeln(formatfloat('0.00000000',mmtime_drift));}
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490 qpc := qpctimefloat;
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492 result := (qpc - mmtime_lastsyncqpc) * mmtime_drift + mmtime_lastsyncmm;
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494 {f := (qpc - mmtime_prev_lastsyncqpc) * mmtime_prev_drift + mmtime_prev_lastsyncmm;
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496 writeln('jump ',formatfloat('0.000000',jump),' drift ',formatfloat('0.00000000',mmtime_drift),' duration ',formatfloat('0.000',(mmtime_lastsyncqpc-mmtime_prev_lastsyncqpc)),' ',formatfloat('0.00000000',jump/(mmtime_lastsyncqpc-mmtime_prev_lastsyncqpc)));}
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503 if (result < mmtime_lastresult) then result := mmtime_lastresult;
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504 mmtime_lastresult := result;
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507 { free pascals tsystemtime is incompatible with windows api calls
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508 so we declare it ourselves - plugwash
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512 TSystemTime = record
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520 wMilliseconds: Word;
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523 function Date_utc: extended;
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525 SystemTime: TSystemTime;
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528 GetsystemTime(@SystemTime);
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530 GetsystemTime(SystemTime);
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532 with SystemTime do Result := EncodeDate(wYear, wMonth, wDay);
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535 function Time_utc: extended;
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537 SystemTime: TSystemTime;
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540 GetsystemTime(@SystemTime);
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542 GetsystemTime(SystemTime);
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545 Result := EncodeTime(wHour, wMinute, wSecond, wMilliSeconds);
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548 function Now_utc: extended;
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550 Result := round(Date_utc) + Time_utc;
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553 function unixtimefloat_systemtime:float;
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555 {result := oletounixfloat(now_utc);}
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557 {this method gives exactly the same result with extended precision, but is less sensitive to float rounding in theory}
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558 result := oletounixfloat(int(date_utc+0.5))+time_utc*86400;
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561 function monotimefloat:extended;
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563 result := mmqpctimefloat;
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569 GetSystemTimePreciseAsFileTime:procedure(var v:tfiletime); stdcall;
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570 win8inited:boolean;
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572 procedure initwin8;
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577 win8inited := true;
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578 dllhandle := loadlibrary('kernel32.dll');
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579 if (dllhandle <> 0) then begin
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580 GetSystemTimePreciseAsFileTime := getprocaddress(dllhandle,'GetSystemTimePreciseAsFileTime');
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585 function unixtimefloat_win8:float;
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588 i:int64 absolute ft;
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590 GetSystemTimePreciseAsFileTime(ft);
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591 {change from windows 1601-01-01 to unix 1970-01-01.
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592 use integer math for this, to preserve precision}
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593 dec(i, 116444736000000000);
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594 result := (i / 10000000);
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599 function unixtimefloat:float;
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605 if not btimenowin8 then begin
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606 if not win8inited then initwin8;
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607 if assigned(@GetSystemTimePreciseAsFileTime) then begin
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608 result := unixtimefloat_win8;
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613 result := monotimefloat+timefloatbias;
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614 f := result-unixtimefloat_systemtime;
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615 if ((f > ticks_freq2+margin) or (f < -margin)) or (timefloatbias = 0) then begin
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616 // writeln('unixtimefloat init');
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617 f := unixtimefloat_systemtime;
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619 repeat g := unixtimefloat_systemtime; h := monotimefloat until g > f;
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621 timefloatbias := g-h;
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622 result := unixtimefloat;
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625 {for small changes backwards, guarantee no steps backwards}
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626 if (result <= lastunixtimefloat) and (result > lastunixtimefloat-1.5) then result := lastunixtimefloat + 0.0000001;
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627 lastunixtimefloat := result;
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630 function unixtimeint:tunixtimeint;
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632 result := trunc(unixtimefloat);
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636 {-----------------------------------------------end of platform specific}
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638 function wintimefloat:float;
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640 result := monotimefloat;
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643 function irctimefloat:float;
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645 result := unixtimefloat+settimebias;
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648 function irctimeint:tunixtimeint;
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650 result := unixtimeint+settimebias;
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654 procedure settime(newtime:tunixtimeint);
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658 a := irctimeint-settimebias;
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659 if newtime = 0 then settimebias := 0 else settimebias := newtime-a;
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661 irctime := irctimeint;
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664 procedure timehandler;
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666 if unixtime = 0 then init;
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667 unixtime := unixtimeint;
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668 irctime := irctimeint;
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669 if unixtime and 63 = 0 then begin
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670 {update everything, apply timezone changes, clock changes, etc}
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672 timefloatbias := 0;
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673 unixtime := unixtimeint;
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674 irctime := irctimeint;
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685 function tzgetfilename:ansistring;
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689 s,tz,tzdir:ansistring;
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694 tz := getenv('TZ');
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696 if (copy(tz,1,1) = ':') then begin
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697 tz := copy(tz,2,99999);
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699 if (copy(tz,1,1) <> '/') then begin
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700 tzdir := getenv('TZDIR');
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701 if (tzdir = '') then begin
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702 tzdir := '/usr/share/zoneinfo/';
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704 if (copy(tzdir,length(tzdir),1) <> '/') then tzdir := tzdir + '/';
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710 {$i-}reset(t);{$i+}
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711 if (ioresult = 0) then begin
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720 assignfile(t,'/etc/localtime');
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721 {$i-}reset(t);{$i+}
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722 if (ioresult = 0) then begin
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724 result := '/etc/localtime';
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728 assignfile(t,'/etc/timezone');
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731 {$i-}reset(t);{$i+}
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732 if (ioresult = 0) then begin
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735 if (s <> '') then begin
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736 result := '/usr/share/zoneinfo/'+s;
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743 dvar=array[0..65535] of byte;
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750 procedure tzinvalidate;
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752 if assigned(tzcache) then freemem(tzcache);
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760 function tzgetoffsetforts(ts:tunixtimeint):integer;
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769 //tzstrofs:integer;
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771 tzh_ttisgmtcnt:integer;
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772 tzh_ttisstdcnt:integer;
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773 tzh_leapcnt:integer;
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774 tzh_timecnt:integer;
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775 tzh_typecnt:integer;
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776 tzh_charcnt:integer;
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779 function getint:integer;
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781 if (ofs < 0) or ((ofs + 4) > fs) then raise exception.create('getint');
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782 result := (buf[ofs] shl 24) + (buf[ofs+1] shl 16) + (buf[ofs+2] shl 8) + buf[ofs+3];
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786 function getint64:int64;
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788 if (ofs < 0) or ((ofs + 8) > fs) then raise exception.create('getint64');
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789 result := int64(getint) shl 32;
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790 inc(result,cardinal(getint));
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794 function getbyte:byte;
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796 if (ofs < 0) or ((ofs + 1) > fs) then raise exception.create('getbyte');
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797 result := buf[ofs];
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805 if not assigned(tzcache) then begin
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807 if (tzfile = '') then tzfile := tzgetfilename;
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809 if (tzfile = '') then exit;
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811 assignfile(f,tzfile);
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813 {$i-}reset(f,1);{$i+}
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814 if (ioresult <> 0) then begin
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817 tzsize := filesize(f);
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818 if (tzsize > 65536) then tzsize := 65536;
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819 getmem(tzcache,tzsize);
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820 blockread(f,tzcache^,tzsize);
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830 if (getint <> $545a6966) then exit; // 'TZif'
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831 has64 := getbyte >= $32; // '2'
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835 tzh_ttisgmtcnt := getint;
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836 tzh_ttisstdcnt := getint;
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837 tzh_leapcnt := getint;
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838 tzh_timecnt := getint;
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839 tzh_typecnt := getint;
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840 tzh_charcnt := getint;
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842 if mode64 or (not has64) then break;
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843 inc(ofs, 5 * tzh_timecnt + 6 * tzh_typecnt + 8 * tzh_leapcnt + tzh_ttisstdcnt + tzh_ttisgmtcnt + tzh_charcnt);
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848 if (tzh_timecnt < 0) or (tzh_timecnt > fs) then raise exception.create('tzh_timecnt');
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851 for a := 0 to tzh_timecnt -1 do begin
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852 if mode64 then t := getint64 else t := getint;
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853 if (t > ts) then begin
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857 if (a = tzh_timecnt -1) and (ts >= t) then index := a;
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859 ofs := ofs2 + tzh_timecnt * (1 + ord(mode64)) * 4;
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861 if (cardinal(ofs + index) >= fs) or (index < 0) then raise exception.create('index');
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862 index := buf[ofs+index];
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863 inc(ofs,tzh_timecnt);
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865 if (index >= tzh_typecnt) then raise exception.create('type');
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867 // writeln('ofs2 ',inttohex(ofs2,8));
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868 inc(ofs,6 * index);
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871 //tzisdst := getbyte;
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873 //the abbreviation string
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874 { tzstrofs := getbyte;
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876 ofs := ofs2 + 6 * tzh_typecnt;
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877 inc(ofs, tzstrofs);
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881 if (a <> 0) then tzstr := tzstr + chr(a);
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890 function tzgetoffset:integer;
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892 tzgetoffsetforts(unixtimeint);
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899 procedure gettimezone;
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915 timezone := tzgetoffset;
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916 //freepascal tzseconds is not 2038 safe
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919 timezone := (longint(hh) * 3600 + mm * 60 + ss) - (unixtimeint mod 86400);
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922 timezone := round((now-now_utc)*86400);
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925 while timezone > 50400 do dec(timezone,86400);
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926 while timezone < -50400 do inc(timezone,86400);
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928 if timezone >= 0 then timezonestr := '+' else timezonestr := '-';
\r
929 l := abs(timezone) div 60;
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930 timezonestr := timezonestr + char(l div 600 mod 10+48)+char(l div 60 mod 10+48)+':'+char(l div 10 mod 6+48)+char(l mod 10+48);
\r
933 function timestrshort(i:tunixtimeint):string;
\r
935 weekday:array[0..6] of string[4]=('Thu','Fri','Sat','Sun','Mon','Tue','Wed');
\r
936 month:array[0..11] of string[4]=('Jan','Feb','Mar','Apr','May','Jun','Jul','Aug','Sep','Oct','Nov','Dec');
\r
938 y,m,d,h,min,sec,ms:word;
\r
941 t := unixtoole(i+timezone);
\r
942 decodedate(t,y,m,d);
\r
943 decodetime(t,h,min,sec,ms);
\r
944 result := weekday[(i+timezone) div 86400 mod 7]+' '+month[m-1]+' '+inttostr(d)+' '+
\r
945 inttostr(h div 10)+inttostr(h mod 10)+':'+inttostr(min div 10)+inttostr(min mod 10)+':'+inttostr(sec div 10)+inttostr(sec mod 10)+' '+
\r
949 function timestring(i:tunixtimeint):string;
\r
951 weekday:array[0..6] of string[10]=('Thursday','Friday','Saturday','Sunday','Monday','Tuesday','Wednesday');
\r
952 month:array[0..11] of string[10]=('January','February','March','April','May','June','July','August','September','October','November','December');
\r
954 y,m,d,h,min,sec,ms:word;
\r
957 t := unixtoole(i+timezone);
\r
958 decodedate(t,y,m,d);
\r
959 decodetime(t,h,min,sec,ms);
\r
960 result := weekday[(i+timezone) div 86400 mod 7]+' '+month[m-1]+' '+inttostr(d)+' '+inttostr(y)+' -- '+
\r
961 inttostr(h div 10)+inttostr(h mod 10)+':'+inttostr(min div 10)+inttostr(min mod 10)+':'+inttostr(sec div 10)+inttostr(sec mod 10)+' '+
\r
965 function timestriso(i:tunixtimeint):string;
\r
967 y,m,d,h,min,sec,ms:word;
\r
970 t := unixtoole(i+timezone);
\r
971 decodedate(t,y,m,d);
\r
972 decodetime(t,h,min,sec,ms);
\r
973 result := inttostr(y)+'-'+inttostr(m div 10)+inttostr(m mod 10)+'-'+inttostr(d div 10)+inttostr(d mod 10)+' '+inttostr(h div 10)+inttostr(h mod 10)+':'+inttostr(min div 10)+inttostr(min mod 10)+':'+inttostr(sec div 10)+inttostr(sec mod 10);
\r
976 function timestrisoutc(i:float):string;
\r
978 y,m,d,h,min,sec,ms:word;
\r
983 decodedate(t,y,m,d);
\r
984 decodetime(t,h,min,sec,ms);
\r
985 result := inttostr(y)+'-'+inttostr(m div 10)+inttostr(m mod 10)+'-'+inttostr(d div 10)+inttostr(d mod 10)+'T'+inttostr(h div 10)+inttostr(h mod 10)+':'+inttostr(min div 10)+inttostr(min mod 10)+':'+inttostr(sec div 10)+inttostr(sec mod 10);
\r
988 result := result + '.'+
\r
989 inttostr(trunc(fr*10) mod 10)+
\r
990 inttostr(trunc(fr*100) mod 10)+
\r
991 inttostr(trunc(fr*1000) mod 10)+
\r
992 inttostr(trunc(fr*10000) mod 10)+
\r
993 inttostr(trunc(fr*100000) mod 10)+
\r
994 inttostr(trunc(fr*1000000) mod 10)+'Z';
\r
998 procedure beginhightimerrate;
\r
1000 {$ifdef mswindows}timebeginperiod(1);{$endif}
\r
1003 procedure endhightimerrate;
\r
1005 {$ifdef mswindows}timeendperiod(1);{$endif}
\r
1010 {$ifdef btimehighrate}beginhightimerrate;{$endif}
\r
1011 fillchar(mmtime_driftavg,sizeof(mmtime_driftavg),0);
\r
1014 unixtime := unixtimeint;
\r
1015 irctime := irctimeint;
\r
1018 initialization init;
\r