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/**************************************************************************
*
* Copyright 2008 VMware, Inc.
* 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 VMWARE 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 <jfonseca@vmware.com>
*/
#ifndef U_TIME_H_
#define U_TIME_H_
#include "pipe/p_config.h"
#include "os/os_time.h"
#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
{
int64_t counter;
};
PIPE_DEPRECATED
static INLINE void
util_time_get(struct util_time *t)
{
t->counter = os_time_get();
}
/**
* Return t2 = t1 + usecs
*/
PIPE_DEPRECATED
static INLINE void
util_time_add(const struct util_time *t1,
int64_t usecs,
struct util_time *t2)
{
t2->counter = t1->counter + usecs;
}
/**
* Return difference between times, in microseconds
*/
PIPE_DEPRECATED
static INLINE int64_t
util_time_diff(const struct util_time *t1,
const struct util_time *t2)
{
return t2->counter - t1->counter;
}
/**
* Compare two time values.
*
* Not publicly available because it does not take in account wrap-arounds.
* Use util_time_timeout instead.
*/
static INLINE int
_util_time_compare(const struct util_time *t1,
const struct util_time *t2)
{
if (t1->counter < t2->counter)
return -1;
else if(t1->counter > t2->counter)
return 1;
else
return 0;
}
/**
* Returns non-zero when the timeout expires.
*/
PIPE_DEPRECATED
static INLINE boolean
util_time_timeout(const struct util_time *start,
const struct util_time *end,
const struct util_time *curr)
{
return os_time_timeout(start->counter, end->counter, curr->counter);
}
/**
* Return current time in microseconds
*/
PIPE_DEPRECATED
static INLINE int64_t
util_time_micros(void)
{
return os_time_get();
}
PIPE_DEPRECATED
static INLINE void
util_time_sleep(int64_t usecs)
{
os_time_sleep(usecs);
}
#ifdef __cplusplus
}
#endif
#endif /* U_TIME_H_ */
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