1 //===-- TimeValue.cpp - Implement OS TimeValue Concept ----------*- C++ -*-===//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
10 // This file implements the operating system TimeValue concept.
12 //===----------------------------------------------------------------------===//
14 #include "llvm/Support/TimeValue.h"
15 #include "llvm/Config/config.h"
21 const TimeValue::SecondsType
22 TimeValue::PosixZeroTimeSeconds = -946684800;
23 const TimeValue::SecondsType
24 TimeValue::Win32ZeroTimeSeconds = -12591158400ULL;
26 void TimeValue::normalize() {
27 if ( nanos_ >= NANOSECONDS_PER_SECOND ) {
30 nanos_ -= NANOSECONDS_PER_SECOND;
31 } while ( nanos_ >= NANOSECONDS_PER_SECOND );
32 } else if (nanos_ <= -NANOSECONDS_PER_SECOND ) {
35 nanos_ += NANOSECONDS_PER_SECOND;
36 } while (nanos_ <= -NANOSECONDS_PER_SECOND);
39 if (seconds_ >= 1 && nanos_ < 0) {
41 nanos_ += NANOSECONDS_PER_SECOND;
42 } else if (seconds_ < 0 && nanos_ > 0) {
44 nanos_ -= NANOSECONDS_PER_SECOND;
50 /// Include the platform-specific portion of TimeValue class
52 #include "Unix/TimeValue.inc"
55 #include "Windows/TimeValue.inc"