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C4TimeMilliseconds.cpp
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1 /*
2  * OpenClonk, http://www.openclonk.org
3  *
4  * Copyright (c) 2001-2009, RedWolf Design GmbH, http://www.clonk.de/
5  * Copyright (c) 2011-2016, The OpenClonk Team and contributors
6  *
7  * Distributed under the terms of the ISC license; see accompanying file
8  * "COPYING" for details.
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10  * "Clonk" is a registered trademark of Matthes Bender, used with permission.
11  * See accompanying file "TRADEMARK" for details.
12  *
13  * To redistribute this file separately, substitute the full license texts
14  * for the above references.
15  */
16 
17 #include "C4Include.h"
19 #include <limits>
20 
21 #ifdef _WIN32
22 
24 #include <mmsystem.h>
25 
27 {
28  return C4TimeMilliseconds(timeGetTime());
29 }
30 
31 #else
32 
33 #ifdef __APPLE__
34 #include <sys/time.h>
35 #else
36 #include <time.h>
37 #endif
38 
40 {
41 #ifdef __APPLE__
42  static time_t sec_offset;
43  timeval tv;
44  gettimeofday(&tv, 0);
45  if (!sec_offset) sec_offset = tv.tv_sec;
46  return C4TimeMilliseconds((tv.tv_sec - sec_offset) * 1000 + tv.tv_usec / 1000);
47 #else
48  timespec tv;
49  clock_gettime(CLOCK_MONOTONIC, &tv);
50  static time_t sec_offset = tv.tv_sec;
51  return C4TimeMilliseconds((tv.tv_sec - sec_offset) * 1000 + tv.tv_nsec / 1000000);
52 #endif
53 }
54 
55 #endif
56 
58 {
59  if (inf == PositiveInfinity)
60  {
61  return StdCopyStrBuf("POSITIVE INFINITY");
62  }
63  if (inf == NegativeInfinity)
64  {
65  return StdCopyStrBuf("NEGATIVE INFINITY");
66  }
67  StdCopyStrBuf string;
68  string.Format("%u:%02u:%02u:%03u:",time / 1000 / 60 / 60, (time / 1000 / 60) % 60, (time / 1000) % 60, time % 1000);
69  return StdCopyStrBuf(string);
70 }
71 
73 
74 bool operator==( const C4TimeMilliseconds& lhs, const C4TimeMilliseconds& rhs )
75 {
76  return lhs.inf == rhs.inf &&
77  lhs.time == rhs.time;
78 }
79 
80 bool operator<( const C4TimeMilliseconds& lhs, const C4TimeMilliseconds& rhs )
81 {
82  if (lhs.inf != C4TimeMilliseconds::NoInfinity ||
84  {
85  return lhs.inf < rhs.inf;
86  }
87  return int32_t(lhs.time - rhs.time) < 0;
88 }
89 
90 int32_t operator-(const C4TimeMilliseconds& lhs, const C4TimeMilliseconds& rhs)
91 {
92  // if infinity is set, nothing else than infinity matters (infinity + 100 == infinity)
93  if (lhs.inf != C4TimeMilliseconds::NoInfinity ||
95  {
96  int infinityTo = lhs.inf - rhs.inf;
97 
98  if (infinityTo < 0) return std::numeric_limits<int32_t>::min();
99  if (infinityTo > 0) return std::numeric_limits<int32_t>::max();
100  return 0;
101  }
102  // otherwise, as usual
103  return int32_t(lhs.time - rhs.time);
104 }
StdCopyStrBuf AsString() const
void Format(const char *szFmt,...) GNUC_FORMAT_ATTRIBUTE_O
Definition: StdBuf.cpp:174
C4TimeMilliseconds()=default
int32_t operator-(const C4TimeMilliseconds &lhs, const C4TimeMilliseconds &rhs)
bool operator<(const C4TimeMilliseconds &lhs, const C4TimeMilliseconds &rhs)
bool operator==(const C4TimeMilliseconds &lhs, const C4TimeMilliseconds &rhs)
C4TimeMilliseconds & operator=(const C4TimeMilliseconds &rhs)
static C4TimeMilliseconds Now()