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.
22 // (Log is kept at end of this file)
30 # error This library requires C++
34 extern unsigned long int fgSimTime;
36 // this routine initializes the interval timer to generate a SIGALRM
37 // after the specified interval (dt) the function f() will be called
39 void fgTimerInit( float dt, void (*f)( int ) );
41 // This function returns the number of milleseconds since the last
42 // time it was called.
43 int fgGetTimeInterval( void );
46 #endif // _FG_TIMER_HXX
50 // Revision 1.2 1999/04/06 16:58:35 curt
51 // Clean ups and reorganizations:
52 // - Additional Thanks entry
53 // - more info on getting gfc library
54 // - converted some C style comments to C++ style.
56 // Revision 1.1.1.1 1999/04/05 21:32:47 curt
57 // Start of 0.6.x branch.
59 // Revision 1.1 1998/04/24 00:52:30 curt
60 // Wrapped "#include <config.h>" in "#ifdef HAVE_CONFIG_H"
62 // Separated out lighting calcs into their own file.
64 // Revision 1.5 1998/04/21 17:01:45 curt
65 // Fixed a problems where a pointer to a function was being passed around. In
66 // one place this functions arguments were defined as ( void ) while in another
67 // place they were defined as ( int ). The correct answer was ( int ).
69 // Prepairing for C++ integration.
71 // Revision 1.4 1998/01/22 02:59:43 curt
72 // Changed #ifdef FILE_H to #ifdef _FILE_H
74 // Revision 1.3 1998/01/19 18:40:40 curt
75 // Tons of little changes to clean up the code and to remove fatal errors
76 // when building with the c++ compiler.
78 // Revision 1.2 1997/07/23 21:52:27 curt
79 // Put comments around the text after an #endif for increased portability.
81 // Revision 1.1 1997/06/16 19:24:20 curt