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//===-- TimeValue.cpp - Implement OS TimeValue Concept ----------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// This file implements the operating system TimeValue concept.
//
//===----------------------------------------------------------------------===//
#include "llvm/Support/TimeValue.h"
#include "llvm/Support/Chrono.h"
#include "llvm/Support/ScopedPrinter.h"
namespace llvm {
using namespace sys;
const TimeValue::SecondsType
TimeValue::PosixZeroTimeSeconds = -946684800;
const TimeValue::SecondsType
TimeValue::Win32ZeroTimeSeconds = -12591158400ULL;
void TimeValue::normalize() {
if ( nanos_ >= NANOSECONDS_PER_SECOND ) {
do {
seconds_++;
nanos_ -= NANOSECONDS_PER_SECOND;
} while ( nanos_ >= NANOSECONDS_PER_SECOND );
} else if (nanos_ <= -NANOSECONDS_PER_SECOND ) {
do {
seconds_--;
nanos_ += NANOSECONDS_PER_SECOND;
} while (nanos_ <= -NANOSECONDS_PER_SECOND);
}
if (seconds_ >= 1 && nanos_ < 0) {
seconds_--;
nanos_ += NANOSECONDS_PER_SECOND;
} else if (seconds_ < 0 && nanos_ > 0) {
seconds_++;
nanos_ -= NANOSECONDS_PER_SECOND;
}
}
std::string TimeValue::str() const { return to_string(TimePoint<>(*this)); }
TimeValue TimeValue::now() {
return TimePoint<>(std::chrono::system_clock::now());
}
} // namespace llvm
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