57 lines
1.5 KiB
C++
57 lines
1.5 KiB
C++
//===-- TimeValue.cpp - Implement OS TimeValue Concept ----------*- C++ -*-===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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// This file implements the operating system TimeValue concept.
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//
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//===----------------------------------------------------------------------===//
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#include "llvm/Support/TimeValue.h"
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#include "llvm/Config/config.h"
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namespace llvm {
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using namespace sys;
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const TimeValue::SecondsType
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TimeValue::PosixZeroTimeSeconds = -946684800;
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const TimeValue::SecondsType
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TimeValue::Win32ZeroTimeSeconds = -12591158400ULL;
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void TimeValue::normalize() {
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if ( nanos_ >= NANOSECONDS_PER_SECOND ) {
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do {
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seconds_++;
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nanos_ -= NANOSECONDS_PER_SECOND;
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} while ( nanos_ >= NANOSECONDS_PER_SECOND );
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} else if (nanos_ <= -NANOSECONDS_PER_SECOND ) {
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do {
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seconds_--;
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nanos_ += NANOSECONDS_PER_SECOND;
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} while (nanos_ <= -NANOSECONDS_PER_SECOND);
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}
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if (seconds_ >= 1 && nanos_ < 0) {
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seconds_--;
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nanos_ += NANOSECONDS_PER_SECOND;
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} else if (seconds_ < 0 && nanos_ > 0) {
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seconds_++;
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nanos_ -= NANOSECONDS_PER_SECOND;
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}
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}
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} // namespace llvm
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/// Include the platform-specific portion of TimeValue class
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#ifdef LLVM_ON_UNIX
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#include "Unix/TimeValue.inc"
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#endif
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#ifdef LLVM_ON_WIN32
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#include "Windows/TimeValue.inc"
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#endif
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