87 lines
2.7 KiB
C
87 lines
2.7 KiB
C
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/**
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* \file
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* <!--
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* This file is part of BeRTOS.
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*
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* Bertos is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*
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* As a special exception, you may use this file as part of a free software
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* library without restriction. Specifically, if other files instantiate
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* templates or use macros or inline functions from this file, or you compile
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* this file and link it with other files to produce an executable, this
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* file does not by itself cause the resulting executable to be covered by
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* the GNU General Public License. This exception does not however
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* invalidate any other reasons why the executable file might be covered by
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* the GNU General Public License.
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*
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* Copyright 2003, 2004 Develer S.r.l. (http://www.develer.com/)
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*
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* -->
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*
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* \brief Portable abstraction for high-resolution time handling (interface)
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*
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* \author Bernie Innocenti <bernie@codewiz.org>
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*/
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#ifndef HPTIME_H
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#define HPTIME_H
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#ifdef __cplusplus
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extern "C" {
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#endif /* __cplusplus */
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#ifdef _WIN32
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/** our type for "high precision absolute time" */
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typedef __int64 hptime_t;
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#define SIZEOF_HPTIME_T 8
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#define HPTIME_TICKS_PER_SECOND (10000000I64)
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#define HPTIME_TICKS_PER_MILLISEC (10000I64)
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#define HPTIME_TICKS_PER_MICRO (10I64)
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#elif defined(__unix__) || (defined(__APPLE__) && defined(__MACH__))
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#include <stdint.h> /* int64_t */
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#ifndef DEVLIB_MTIME_DEFINED
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#define DEVLIB_MTIME_DEFINED 1 /* Resolve conflict with <cfg/compiler.h> */
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typedef int32_t mtime_t;
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#define SIZEOF_MTIME_T (32 / CPU_BITS_PER_CHAR)
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#define MTIME_INFINITE 0x7FFFFFFFL
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#endif
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/** Type for "high precision absolute time". */
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typedef int64_t hptime_t;
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#define SIZEOF_HPTIME_T 8
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#define HPTIME_TICKS_PER_SECOND (1000000LL)
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#define HPTIME_TICKS_PER_MILLISEC (1000LL)
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#define HPTIME_TICKS_PER_MICRO (1LL)
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#else /* !__unix__ */
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#error OS dependent support code missing for this OS
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#endif /* !__unix__ */
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/**
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* Return the current time with the maximum precision made available from the hosting OS
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*/
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extern hptime_t hptime_get(void);
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#ifdef __cplusplus
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}
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#endif /* __cplusplus */
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#endif /* HPTIME_H */
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