1 // fg_timer.hxx -- time handling routines
3 // Written by Curtis Olson, started June 1997.
5 // Copyright (C) 1997 Curtis L. Olson - curt@infoplane.com
7 // This program is free software; you can redistribute it and/or
8 // modify it under the terms of the GNU General Public License as
9 // published by the Free Software Foundation; either version 2 of the
10 // License, or (at your option) any later version.
12 // This program is distributed in the hope that it will be useful, but
13 // WITHOUT ANY WARRANTY; without even the implied warranty of
14 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 // General Public License for more details.
17 // You should have received a copy of the GNU General Public License
18 // along with this program; if not, write to the Free Software
19 // Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
29 # error This library requires C++
33 extern unsigned long int fgSimTime;
35 // this routine initializes the interval timer to generate a SIGALRM
36 // after the specified interval (dt) the function f() will be called
38 void fgTimerInit( float dt, void (*f)( int ) );
40 // This function returns the number of milleseconds since the last
41 // time it was called.
42 int fgGetTimeInterval( void );
45 #endif // _FG_TIMER_HXX