1//===-- TimeValue.cpp - Implement OS TimeValue Concept ----------*- C++ -*-===// 2// 3// The LLVM Compiler Infrastructure 4// 5// This file is distributed under the University of Illinois Open Source 6// License. See LICENSE.TXT for details. 7// 8//===----------------------------------------------------------------------===// 9// 10// This file implements the operating system TimeValue concept. 11// 12//===----------------------------------------------------------------------===// 13 14#include "llvm/Support/TimeValue.h" 15#include "llvm/Config/config.h" 16 17namespace llvm { 18using namespace sys; 19 20const TimeValue::SecondsType 21 TimeValue::PosixZeroTimeSeconds = -946684800; 22const TimeValue::SecondsType 23 TimeValue::Win32ZeroTimeSeconds = -12591158400ULL; 24 25const TimeValue TimeValue::MinTime = TimeValue ( INT64_MIN,0 ); 26const TimeValue TimeValue::MaxTime = TimeValue ( INT64_MAX,0 ); 27const TimeValue TimeValue::ZeroTime = TimeValue ( 0,0 ); 28const TimeValue TimeValue::PosixZeroTime = TimeValue ( PosixZeroTimeSeconds,0 ); 29const TimeValue TimeValue::Win32ZeroTime = TimeValue ( Win32ZeroTimeSeconds,0 ); 30 31void 32TimeValue::normalize( void ) { 33 if ( nanos_ >= NANOSECONDS_PER_SECOND ) { 34 do { 35 seconds_++; 36 nanos_ -= NANOSECONDS_PER_SECOND; 37 } while ( nanos_ >= NANOSECONDS_PER_SECOND ); 38 } else if (nanos_ <= -NANOSECONDS_PER_SECOND ) { 39 do { 40 seconds_--; 41 nanos_ += NANOSECONDS_PER_SECOND; 42 } while (nanos_ <= -NANOSECONDS_PER_SECOND); 43 } 44 45 if (seconds_ >= 1 && nanos_ < 0) { 46 seconds_--; 47 nanos_ += NANOSECONDS_PER_SECOND; 48 } else if (seconds_ < 0 && nanos_ > 0) { 49 seconds_++; 50 nanos_ -= NANOSECONDS_PER_SECOND; 51 } 52} 53 54} 55 56/// Include the platform-specific portion of TimeValue class 57#ifdef LLVM_ON_UNIX 58#include "Unix/TimeValue.inc" 59#endif 60#ifdef LLVM_ON_WIN32 61#include "Windows/TimeValue.inc" 62#endif 63