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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19 uses baseunix,unix,unixutil;
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24 procedure tv_add(var tv:ttimeval;msec:integer);
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25 function tv_compare(const tv1,tv2:ttimeval):boolean;
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26 procedure tv_substract(var tv:ttimeval;const tv2:ttimeval);
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27 procedure msectotimeval(var tv:ttimeval;msec:integer);
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29 //tv_invalidtimebig will always compare as greater than any valid timeval
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30 //unfortunately unixstuff.inc hasn't worked it's magic yet so we
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31 //have to ifdef this manually.
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34 tv_invalidtimebig : ttimeval = (sec:maxlongint;usec:maxlongint);
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36 tv_invalidtimebig : ttimeval = (tv_sec:maxlongint;tv_usec:maxlongint);
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43 procedure tv_add(var tv:ttimeval;msec:integer);
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45 inc(tv.tv_usec,msec*1000);
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46 inc(tv.tv_sec,tv.tv_usec div 1000000);
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47 tv.tv_usec := tv.tv_usec mod 1000000;
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51 function tv_compare(const tv1,tv2:ttimeval):boolean;
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53 if tv1.tv_sec = tv2.tv_sec then begin
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54 result := tv1.tv_usec >= tv2.tv_usec;
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55 end else result := tv1.tv_sec > tv2.tv_sec;
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58 procedure tv_substract(var tv:ttimeval;const tv2:ttimeval);
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60 dec(tv.tv_usec,tv2.tv_usec);
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61 if tv.tv_usec < 0 then begin
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62 inc(tv.tv_usec,1000000);
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65 dec(tv.tv_sec,tv2.tv_sec);
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68 procedure msectotimeval(var tv:ttimeval;msec:integer);
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70 tv.tv_sec := msec div 1000;
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71 tv.tv_usec := (msec mod 1000)*1000;
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