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