]>
Commit | Line | Data |
---|---|---|
223e47cc LB |
1 | //===-- TimeValue.cpp - Implement OS TimeValue Concept ----------*- 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 operating system TimeValue concept. | |
11 | // | |
12 | //===----------------------------------------------------------------------===// | |
13 | ||
14 | #include "llvm/Support/TimeValue.h" | |
15 | #include "llvm/Config/config.h" | |
16 | ||
17 | namespace llvm { | |
18 | using namespace sys; | |
19 | ||
970d7e83 LB |
20 | const TimeValue::SecondsType |
21 | TimeValue::PosixZeroTimeSeconds = -946684800; | |
22 | const TimeValue::SecondsType | |
23 | TimeValue::Win32ZeroTimeSeconds = -12591158400ULL; | |
24 | ||
223e47cc LB |
25 | void |
26 | TimeValue::normalize( void ) { | |
27 | if ( nanos_ >= NANOSECONDS_PER_SECOND ) { | |
28 | do { | |
29 | seconds_++; | |
30 | nanos_ -= NANOSECONDS_PER_SECOND; | |
31 | } while ( nanos_ >= NANOSECONDS_PER_SECOND ); | |
32 | } else if (nanos_ <= -NANOSECONDS_PER_SECOND ) { | |
33 | do { | |
34 | seconds_--; | |
35 | nanos_ += NANOSECONDS_PER_SECOND; | |
36 | } while (nanos_ <= -NANOSECONDS_PER_SECOND); | |
37 | } | |
38 | ||
39 | if (seconds_ >= 1 && nanos_ < 0) { | |
40 | seconds_--; | |
41 | nanos_ += NANOSECONDS_PER_SECOND; | |
42 | } else if (seconds_ < 0 && nanos_ > 0) { | |
43 | seconds_++; | |
44 | nanos_ -= NANOSECONDS_PER_SECOND; | |
45 | } | |
46 | } | |
47 | ||
48 | } | |
49 | ||
1a4d82fc | 50 | /// Include the platform-specific portion of TimeValue class |
223e47cc LB |
51 | #ifdef LLVM_ON_UNIX |
52 | #include "Unix/TimeValue.inc" | |
53 | #endif | |
54 | #ifdef LLVM_ON_WIN32 | |
55 | #include "Windows/TimeValue.inc" | |
56 | #endif |