1//===- Unix/TimeValue.cpp - Unix TimeValue Implementation -------*- 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 Unix specific portion of the TimeValue class. 11// 12//===----------------------------------------------------------------------===// 13 14//===----------------------------------------------------------------------===// 15//=== WARNING: Implementation here must contain only generic UNIX code that 16//=== is guaranteed to work on *all* UNIX variants. 17//===----------------------------------------------------------------------===// 18 19#include "Unix.h" 20 21namespace llvm { 22 using namespace sys; 23 24std::string TimeValue::str() const { 25 time_t OurTime = time_t(this->toEpochTime()); 26 struct tm Storage; 27 struct tm *LT = ::localtime_r(&OurTime, &Storage); 28 assert(LT); 29 char Buffer[25]; 30 strftime(Buffer, 25, "%b %e %H:%M %Y", LT); 31 return std::string(Buffer); 32} 33 34TimeValue TimeValue::now() { 35 struct timeval the_time; 36 timerclear(&the_time); 37 if (0 != ::gettimeofday(&the_time,0)) { 38 // This is *really* unlikely to occur because the only gettimeofday 39 // errors concern the timezone parameter which we're passing in as 0. 40 // In the unlikely case it does happen, just return MinTime, no error 41 // message needed. 42 return MinTime; 43 } 44 45 return TimeValue( 46 static_cast<TimeValue::SecondsType>( the_time.tv_sec + 47 PosixZeroTimeSeconds ), 48 static_cast<TimeValue::NanoSecondsType>( the_time.tv_usec * 49 NANOSECONDS_PER_MICROSECOND ) ); 50} 51 52} 53