1 //===- Support/Chrono.cpp - Utilities for Timing Manipulation ---*- 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 #include "llvm/Support/Chrono.h" 11 #include "llvm/Config/config.h" 12 #include "llvm/Support/Format.h" 13 #include "llvm/Support/raw_ostream.h" 14 15 namespace llvm { 16 17 using namespace sys; 18 19 static inline struct tm getStructTM(TimePoint<> TP) { 20 struct tm Storage; 21 std::time_t OurTime = toTimeT(TP); 22 23 #if defined(LLVM_ON_UNIX) 24 struct tm *LT = ::localtime_r(&OurTime, &Storage); 25 assert(LT); 26 (void)LT; 27 #endif 28 #if defined(LLVM_ON_WIN32) 29 int Error = ::localtime_s(&Storage, &OurTime); 30 assert(!Error); 31 (void)Error; 32 #endif 33 34 return Storage; 35 } 36 37 raw_ostream &operator<<(raw_ostream &OS, TimePoint<> TP) { 38 struct tm LT = getStructTM(TP); 39 char Buffer[sizeof("YYYY-MM-DD HH:MM:SS")]; 40 strftime(Buffer, sizeof(Buffer), "%Y-%m-%d %H:%M:%S", <); 41 return OS << Buffer << '.' 42 << format("%.9lu", 43 long((TP.time_since_epoch() % std::chrono::seconds(1)) 44 .count())); 45 } 46 47 } // namespace llvm 48