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/*
* Copyright (C) 2004-2011 NXP Software
* Copyright (C) 2011 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/**
************************************************************************
* @file M4OSA_Time.h
* @ingroup OSAL
* @brief Time macros
* @note This file defines time type and associated macros which must
* be used to manipulate time.
************************************************************************
*/
/* $Id: M4OSA_Time.h,v 1.2 2007/01/05 13:12:22 thenault Exp $ */
#ifndef M4OSA_TIME_H
#define M4OSA_TIME_H
#include "M4OSA_Types.h"
typedef M4OSA_Int64 M4OSA_Time;
/** This macro sets the unknown time value */
#ifdef M4OSA_64BITS_SUPPORTED
#define M4OSA_TIME_SET_UNKNOWN(time) {time = 0x8000000000000000LL ;}
#endif /* M4OSA_64BITS_SUPPORTED */
#ifdef M4OSA_64BITS_COUPLE_INT
#define M4OSA_TIME_SET_UNKNOWN(time) {\
time.major = 0x80000000 ;\
time.minor = 0x00000000 ;}
#endif /* M4OSA_64BITS_COUPLE_INT */
#ifdef M4OSA_64BITS_NOT_SUPPORTED
#define M4OSA_TIME_SET_UNKNOWN(time) {time = 0x80000000;}
#endif /* M4OSA_64BITS_NOT_SUPPORTED */
/** This macro returns 1 if the provided time is set to unknown time,
and 0 else.*/
#ifdef M4OSA_64BITS_SUPPORTED
#define M4OSA_TIME_IS_UNKNOWN(time) (((M4OSA_UInt64)(time) == 0x8000000000000000LL) ? 1 : 0)
#elif defined M4OSA_64BITS_COUPLE_INT
#define M4OSA_TIME_IS_UNKNOWN(time)\
(( (M4OSA_INT64_GET_HIGH32(time) == M4OSA_unknownTimeMajor)\
&&(M4OSA_INT64_GET_LOW32(time) == M4OSA_unknownTimeMinor) ) ? 1:0)
#else /* M4OSA_64BITS_NOT_SUPPORTED */
#define M4OSA_TIME_IS_UNKNOWN(time) (((M4OSA_UInt32)(time) == 0x80000000) ? 1 : 0)
#endif
/** This macro affects time2 to time1.*/
#define M4OSA_TIME_SET(time1, time2)\
M4OSA_INT64_SET(time1, time2)
/** This macro sets time from i32.*/
#define M4OSA_TIME_FROM_INT32(time, i32)\
M4OSA_INT64_FROM_INT32(time, i32)
/** This macro sets time from i32 ui32.*/
#define M4OSA_TIME_FROM_INT32_UINT32(time, i32, ui32)\
M4OSA_INT64_FROM_INT32_UINT32(time, i32, ui32)
/** This macro tests if time is positive*/
#define M4OSA_TIME_IS_POSITIVE(time)\
M4OSA_INT64_IS_POSITIVE(time)
/** This macro sets time_out = -time_in*/
#define M4OSA_TIME_NEG(time_out, time_in)\
M4OSA_INT64_NEG(time_out, time_in)
/** This macro sets time_out = |time_in|*/
#define M4OSA_TIME_ABS(time_out, time_in)\
M4OSA_INT64_ABS(time_out, time_in)
/** This macro adds the 2 provided times (time1 and time2),
and writes the result in result. Both times must have the same timescale.*/
#define M4OSA_TIME_ADD(result, time1, time2)\
M4OSA_INT64_ADD(result, time1, time2)
/** This macro subs the 2 provided times (time1 and time2),
and writes the result in result.*/
#define M4OSA_TIME_SUB(result, time1, time2)\
M4OSA_INT64_SUB(result, time1, time2)
/** This macro does a scalar product (result = time*value),
and writes the result in result.*/
#define M4OSA_TIME_SCALAR_PRODUCT(result, time, value)\
M4OSA_INT64_SCALAR_PRODUCT(result, time, value)
/** This macro does a scalar division (result= time / value),
and writes the result in result.*/
#define M4OSA_TIME_SCALAR_DIVISION(result, time, value)\
M4OSA_INT64_SCALAR_DIVISION(result, time, value)
/** This macro updates the time to the oldTimeScale to the newTimeScale. The
result (the nearest rounded to the min value) is stored in result value. */
#define M4OSA_TIME_CHANGE_TIMESCALE(result, time, oldTimeScale, newTimeScale)\
{ M4OSA_Time t_tempTime1, t_tempTime2, t_tempTime3;\
M4OSA_Int32 i32_quotient = newTimeScale/oldTimeScale;\
M4OSA_Int32 i32_rest = newTimeScale%oldTimeScale;\
M4OSA_INT64_SCALAR_PRODUCT(t_tempTime1, time, i32_quotient);\
M4OSA_INT64_SCALAR_PRODUCT(t_tempTime2, time, i32_rest);\
M4OSA_INT64_SCALAR_DIVISION(t_tempTime3, t_tempTime2, oldTimeScale);\
M4OSA_INT64_ADD(result, t_tempTime1, t_tempTime3); }
/** This macro tests the 2 provided times (time1 & time2).
The result is either:
* @arg 1: if time1 is bigger than time2
* @arg 0: if time2 is equal to time2
* @arg -1: if time1 is smaller than time2 */
#define M4OSA_TIME_COMPARE(time1, time2)\
M4OSA_INT64_COMPARE(time1, time2)
/** This macro converts a time with a time scale to millisecond.
The result is a M4OSA_Double*/
#define M4OSA_TIME_TO_MS(result, time, timescale)\
{ M4OSA_INT64_TO_DOUBLE(result, time);\
result = (1000*result)/((M4OSA_Double)timescale); }
/** This macro converts a millisecond time to M4OSA_Time with the provided
timescale. The result (the nearest rounded to the min value) is stored
in time value.*/
#define M4OSA_MS_TO_TIME(time, timescale, ms)\
{M4OSA_INT64_FROM_DOUBLE(time, (ms*((M4OSA_Double)(timescale))/1000.0));}
#endif /*M4OSA_TIME_H*/
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