151 lines
3.3 KiB
C
151 lines
3.3 KiB
C
/**************************************************************************
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*
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* Copyright 2008 Tungsten Graphics, Inc., Cedar Park, Texas.
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* All Rights Reserved.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sub license, and/or sell copies of the Software, and to
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* permit persons to whom the Software is furnished to do so, subject to
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* the following conditions:
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*
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* The above copyright notice and this permission notice (including the
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* next paragraph) shall be included in all copies or substantial portions
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* of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
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* IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
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* ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
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* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
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* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*
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**************************************************************************/
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/**
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* @file
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* OS independent time-manipulation functions.
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*
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* @author Jose Fonseca <jrfonseca@tungstengraphics.com>
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*/
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#ifndef U_TIME_H_
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#define U_TIME_H_
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#include "pipe/p_config.h"
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#include "os/os_time.h"
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#include "pipe/p_compiler.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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/**
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* Time abstraction.
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*
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* Do not access this structure directly. Use the provided function instead.
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*/
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struct util_time
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{
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int64_t counter;
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};
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PIPE_DEPRECATED
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static INLINE void
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util_time_get(struct util_time *t)
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{
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t->counter = os_time_get();
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}
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/**
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* Return t2 = t1 + usecs
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*/
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PIPE_DEPRECATED
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static INLINE void
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util_time_add(const struct util_time *t1,
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int64_t usecs,
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struct util_time *t2)
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{
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t2->counter = t1->counter + usecs;
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}
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/**
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* Return difference between times, in microseconds
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*/
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PIPE_DEPRECATED
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static INLINE int64_t
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util_time_diff(const struct util_time *t1,
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const struct util_time *t2)
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{
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return t2->counter - t1->counter;
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}
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/**
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* Compare two time values.
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*
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* Not publicly available because it does not take in account wrap-arounds.
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* Use util_time_timeout instead.
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*/
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static INLINE int
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_util_time_compare(const struct util_time *t1,
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const struct util_time *t2)
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{
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if (t1->counter < t2->counter)
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return -1;
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else if(t1->counter > t2->counter)
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return 1;
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else
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return 0;
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}
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/**
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* Returns non-zero when the timeout expires.
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*/
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PIPE_DEPRECATED
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static INLINE boolean
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util_time_timeout(const struct util_time *start,
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const struct util_time *end,
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const struct util_time *curr)
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{
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return os_time_timeout(start->counter, end->counter, curr->counter);
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}
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/**
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* Return current time in microseconds
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*/
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PIPE_DEPRECATED
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static INLINE int64_t
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util_time_micros(void)
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{
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return os_time_get();
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}
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PIPE_DEPRECATED
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static INLINE void
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util_time_sleep(int64_t usecs)
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{
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os_time_sleep(usecs);
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}
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#ifdef __cplusplus
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}
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#endif
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#endif /* U_TIME_H_ */
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