| //===- Unix/TimeValue.cpp - Unix TimeValue Implementation -------*- 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 Unix specific portion of the TimeValue class. |
| // |
| //===----------------------------------------------------------------------===// |
| |
| //===----------------------------------------------------------------------===// |
| //=== WARNING: Implementation here must contain only generic UNIX code that |
| //=== is guaranteed to work on *all* UNIX variants. |
| //===----------------------------------------------------------------------===// |
| |
| #include "Unix.h" |
| |
| namespace llvm { |
| using namespace sys; |
| |
| std::string TimeValue::str() const { |
| time_t OurTime = time_t(this->toEpochTime()); |
| struct tm Storage; |
| struct tm *LT = ::localtime_r(&OurTime, &Storage); |
| assert(LT); |
| char Buffer1[sizeof("YYYY-MM-DD HH:MM:SS")]; |
| strftime(Buffer1, sizeof(Buffer1), "%Y-%m-%d %H:%M:%S", LT); |
| char Buffer2[sizeof("YYYY-MM-DD HH:MM:SS.MMMUUUNNN")]; |
| snprintf(Buffer2, sizeof(Buffer2), "%s.%.9u", Buffer1, this->nanoseconds()); |
| return std::string(Buffer2); |
| } |
| |
| TimeValue TimeValue::now() { |
| struct timeval the_time; |
| timerclear(&the_time); |
| if (0 != ::gettimeofday(&the_time,nullptr)) { |
| // This is *really* unlikely to occur because the only gettimeofday |
| // errors concern the timezone parameter which we're passing in as 0. |
| // In the unlikely case it does happen, just return MinTime, no error |
| // message needed. |
| return MinTime(); |
| } |
| |
| return TimeValue( |
| static_cast<TimeValue::SecondsType>( the_time.tv_sec + |
| PosixZeroTimeSeconds ), |
| static_cast<TimeValue::NanoSecondsType>( the_time.tv_usec * |
| NANOSECONDS_PER_MICROSECOND ) ); |
| } |
| |
| } |
