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 17 namespace llvm { 18 using namespace sys; 19 20 const TimeValue TimeValue::MinTime = TimeValue ( INT64_MIN,0 ); 21 const TimeValue TimeValue::MaxTime = TimeValue ( INT64_MAX,0 ); 22 const TimeValue TimeValue::ZeroTime = TimeValue ( 0,0 ); 23 const TimeValue TimeValue::PosixZeroTime = TimeValue ( -946684800,0 ); 24 const TimeValue TimeValue::Win32ZeroTime = TimeValue ( -12591158400ULL,0 ); 25 26 void 27 TimeValue::normalize( void ) { 28 if ( nanos_ >= NANOSECONDS_PER_SECOND ) { 29 do { 30 seconds_++; 31 nanos_ -= NANOSECONDS_PER_SECOND; 32 } while ( nanos_ >= NANOSECONDS_PER_SECOND ); 33 } else if (nanos_ <= -NANOSECONDS_PER_SECOND ) { 34 do { 35 seconds_--; 36 nanos_ += NANOSECONDS_PER_SECOND; 37 } while (nanos_ <= -NANOSECONDS_PER_SECOND); 38 } 39 40 if (seconds_ >= 1 && nanos_ < 0) { 41 seconds_--; 42 nanos_ += NANOSECONDS_PER_SECOND; 43 } else if (seconds_ < 0 && nanos_ > 0) { 44 seconds_++; 45 nanos_ -= NANOSECONDS_PER_SECOND; 46 } 47 } 48 49 } 50 51 /// Include the platform specific portion of TimeValue class 52 #ifdef LLVM_ON_UNIX 53 #include "Unix/TimeValue.inc" 54 #endif 55 #ifdef LLVM_ON_WIN32 56 #include "Windows/TimeValue.inc" 57 #endif 58
