src/system/sysclk.h

/// @file sysclk.h
/// @author Kimball Thurston
///

//
// Copyright (c) 2004 Kimball Thurston
// 
// This program is free software; you can redistribute it and/or modify
// it under the terms of the GNU General Public License version 2 as
// published by the Free Software Foundation.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program; if not, write to the Free Software
// Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
//

#ifndef _SYSCLK_H_
#define _SYSCLK_H_

#include "types.h"
/**
 * Retrieves the host global high-resolution ticks. This is expected to be a
 * counter that is very fast to query, and has very good resolution.
 *
 * On x86 architecture, this is probably best implemented as retrieving the time
 * stamp counter (rdtsc).*/
uint64 sys_get_hiresclk_ticks();

/*
 * Find the number of high resolution ticks per second.
 */
uint64 sys_get_hiresclk_ticks_per_second();

#endif /* _SYSCLK_H_ */
1	dpavlin	1	/// @file sysclk.h
2			/// @author Kimball Thurston
3			///
4
5			//
6			// Copyright (c) 2004 Kimball Thurston
7			//
8			// This program is free software; you can redistribute it and/or modify
9			// it under the terms of the GNU General Public License version 2 as
10			// published by the Free Software Foundation.
11			//
12			// This program is distributed in the hope that it will be useful,
13			// but WITHOUT ANY WARRANTY; without even the implied warranty of
14			// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15			// GNU General Public License for more details.
16			//
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.
20			//
21
22			#ifndef _SYSCLK_H_
23			#define _SYSCLK_H_
24
25			#include "types.h"
26			/**
27			* Retrieves the host global high-resolution ticks. This is expected to be a
28			* counter that is very fast to query, and has very good resolution.
29			*
30			* On x86 architecture, this is probably best implemented as retrieving the time
31			* stamp counter (rdtsc).*/
32			uint64 sys_get_hiresclk_ticks();
33
34			/*
35			* Find the number of high resolution ticks per second.
36			*/
37			uint64 sys_get_hiresclk_ticks_per_second();
38
39			#endif /* _SYSCLK_H_ */