TimeValue.inc revision 36b56886974eae4f9c5ebc96befd3e7bfe5de338 
1//===- Win32/TimeValue.cpp - Win32 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 provides the Win32 implementation of the TimeValue class.
11//
12//===----------------------------------------------------------------------===//
13
14#include "WindowsSupport.h"
15#include <cctype>
16#include <time.h>
17
18using namespace llvm;
19using namespace llvm::sys;
20
21//===----------------------------------------------------------------------===//
22//=== WARNING: Implementation here must contain only Win32 specific code.
23//===----------------------------------------------------------------------===//
24
25TimeValue TimeValue::now() {
26  uint64_t ft;
27  GetSystemTimeAsFileTime(reinterpret_cast<FILETIME *>(&ft));
28
29  TimeValue t(0, 0);
30  t.fromWin32Time(ft);
31  return t;
32}
33
34std::string TimeValue::str() const {
35  struct tm *LT;
36#ifdef __MINGW32__
37  // Old versions of mingw don't have _localtime64_s. Remove this once we drop support
38  // for them.
39  time_t OurTime = time_t(this->toEpochTime());
40  LT = ::localtime(&OurTime);
41  assert(LT);
42#else
43  struct tm Storage;
44  __time64_t OurTime = this->toEpochTime();
45  int Error = ::_localtime64_s(&Storage, &OurTime);
46  assert(!Error);
47  LT = &Storage;
48#endif
49
50  char Buffer[25];
51  // FIXME: the windows version of strftime doesn't support %e
52  strftime(Buffer, 25, "%b %d %H:%M %Y", LT);
53  assert((Buffer[3] == ' ' && isdigit(Buffer[5]) && Buffer[6] == ' ') &&
54         "Unexpected format in strftime()!");
55  // Emulate %e on %d to mute '0'.
56  if (Buffer[4] == '0')
57    Buffer[4] = ' ';
58  return std::string(Buffer);
59}
60