1 /* 2 * Copyright (C) 2011 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 /** 17 ************************************************************************ 18 * @file M4OSA_Time.h 19 * @ingroup OSAL 20 * @brief Time macros 21 * @note This file defines time type and associated macros which must 22 * be used to manipulate time. 23 ************************************************************************ 24 */ 25 26 /* $Id: M4OSA_Time.h,v 1.2 2007/01/05 13:12:22 thenault Exp $ */ 27 28 #ifndef M4OSA_TIME_H 29 #define M4OSA_TIME_H 30 31 32 #include "M4OSA_Types.h" 33 34 35 typedef signed long long M4OSA_Time; 36 37 38 /** This macro sets the unknown time value */ 39 40 #define M4OSA_TIME_UNKNOWN 0x80000000 41 42 /** This macro converts a time with a time scale to millisecond. 43 The result is a M4OSA_Double*/ 44 #define M4OSA_TIME_TO_MS(result, time, timescale)\ 45 { result = (1000*(M4OSA_Double)time)/((M4OSA_Double)timescale); } 46 47 #endif /*M4OSA_TIME_H*/ 48 49
