4 * This file is part of BeRTOS.
6 * Bertos is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
20 * As a special exception, you may use this file as part of a free software
21 * library without restriction. Specifically, if other files instantiate
22 * templates or use macros or inline functions from this file, or you compile
23 * this file and link it with other files to produce an executable, this
24 * file does not by itself cause the resulting executable to be covered by
25 * the GNU General Public License. This exception does not however
26 * invalidate any other reasons why the executable file might be covered by
27 * the GNU General Public License.
29 * Copyright 2003, 2004 Develer S.r.l. (http://www.develer.com/)
33 * \brief Portable abstraction for high-resolution time handling (interface)
35 * \author Bernie Innocenti <bernie@codewiz.org>
42 #endif /* __cplusplus */
46 /** our type for "high precision absolute time" */
47 typedef __int64 hptime_t;
48 #define SIZEOF_HPTIME_T 8
50 #define HPTIME_TICKS_PER_SECOND (10000000I64)
51 #define HPTIME_TICKS_PER_MILLISEC (10000I64)
52 #define HPTIME_TICKS_PER_MICRO (10I64)
54 #elif defined(__unix__) || (defined(__APPLE__) && defined(__MACH__))
56 #include <stdint.h> /* int64_t */
58 #ifndef DEVLIB_MTIME_DEFINED
59 #define DEVLIB_MTIME_DEFINED 1 /* Resolve conflict with <cfg/compiler.h> */
60 typedef int32_t mtime_t;
61 #define SIZEOF_MTIME_T (32 / CPU_BITS_PER_CHAR)
62 #define MTIME_INFINITE 0x7FFFFFFFL
65 /** Type for "high precision absolute time". */
66 typedef int64_t hptime_t;
67 #define SIZEOF_HPTIME_T 8
69 #define HPTIME_TICKS_PER_SECOND (1000000LL)
70 #define HPTIME_TICKS_PER_MILLISEC (1000LL)
71 #define HPTIME_TICKS_PER_MICRO (1LL)
74 #error OS dependent support code missing for this OS
75 #endif /* !__unix__ */
78 * Return the current time with the maximum precision made available from the hosting OS
80 extern hptime_t hptime_get(void);
84 #endif /* __cplusplus */