src/lib/enet/enettime.pp

   1 {$mode objfpc}
   2 unit enettime;
   3
   4 {
   5   ENet - Reliable UDP networking library
   6
   7   FreePascal DLL header: enettime.pp
   8   Copyright (c) 2015 Dmitry D. Chernov aka Black Doomer
   9
  10   Original file: time.h
  11   Copyright (c) 2002-2014 Lee Salzman
  12
  13   Version 1 for 1.3.12: 25.02.2015
  14
  15   Permission is hereby granted, free of charge, to any person obtaining a copy
  16   of this software and associated documentation files (the "Software"), to deal
  17   in the Software without restriction, including without limitation the rights
  18   to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
  19   copies of the Software, and to permit persons to whom the Software is
  20   furnished to do so, subject to the following conditions:
  21
  22   The above copyright notice and this permission notice shall be included in all
  23   copies or substantial portions of the Software.
  24
  25   THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  26   IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  27   FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
  28   AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  29   LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  30   OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  31   SOFTWARE.
  32 }
  33
  34 interface
  35
  36 const
  37   ENET_TIME_OVERFLOW = 86400000;
  38
  39 //inline macros
  40 function ENET_TIME_LESS( const a, b: LongInt ): Boolean; inline;
  41 function ENET_TIME_GREATER( const a, b: LongInt ): Boolean; inline;
  42
  43 function ENET_TIME_LESS_EQUAL( const a, b: LongInt ): Boolean; inline;
  44 function ENET_TIME_GREATER_EQUAL( const a, b: LongInt ): Boolean; inline;
  45
  46 function ENET_TIME_DIFFERENCE( const a, b: LongInt ): LongInt; inline;
  47
  48 implementation
  49
  50 function ENET_TIME_LESS( const a, b: LongInt ): Boolean; inline;
  51    begin Result := a - b >= ENET_TIME_OVERFLOW;
  52      end;
  53 function ENET_TIME_GREATER( const a, b: LongInt ): Boolean; inline;
  54    begin Result := b - a >= ENET_TIME_OVERFLOW;
  55      end;
  56
  57 function ENET_TIME_LESS_EQUAL( const a, b: LongInt ): Boolean; inline;
  58    begin Result := not ENET_TIME_GREATER( a, b );
  59      end;
  60 function ENET_TIME_GREATER_EQUAL( const a, b: LongInt ): Boolean; inline;
  61    begin Result := not ENET_TIME_LESS( a, b );
  62      end;
  63
  64 function ENET_TIME_DIFFERENCE( const a, b: LongInt ): LongInt; inline;
  65    begin if a - b >= ENET_TIME_OVERFLOW then Result := b - a else Result := a - b;
  66      end;
  67
  68 end.