COIN-OR::LEMON - Graph Library

source: lemon-1.2/lemon/bits/windows.cc @ 483:3f0ddf255524

Last change on this file since 483:3f0ddf255524 was 483:3f0ddf255524, checked in by Janos Tapolcai <tapolcai@…>, 11 years ago

Further fixes to windows.cc (#215)

File size: 3.2 KB
Line 
1/* -*- mode: C++; indent-tabs-mode: nil; -*-
2 *
3 * This file is a part of LEMON, a generic C++ optimization library.
4 *
5 * Copyright (C) 2003-2009
6 * Egervary Jeno Kombinatorikus Optimalizalasi Kutatocsoport
7 * (Egervary Research Group on Combinatorial Optimization, EGRES).
8 *
9 * Permission to use, modify and distribute this software is granted
10 * provided that this copyright notice appears in all copies. For
11 * precise terms see the accompanying LICENSE file.
12 *
13 * This software is provided "AS IS" with no warranty of any kind,
14 * express or implied, and with no claim as to its suitability for any
15 * purpose.
16 *
17 */
18
19///\file
20///\brief Some basic non-inline functions and static global data.
21
22#include<lemon/bits/windows.h>
23
24#ifdef WIN32
25#ifndef WIN32_LEAN_AND_MEAN
26#define WIN32_LEAN_AND_MEAN
27#endif
28#ifndef NOMINMAX
29#define NOMINMAX
30#endif
31#ifdef UNICODE
32#undef UNICODE
33#endif
34#include <windows.h>
35#ifdef LOCALE_INVARIANT
36#define MY_LOCALE LOCALE_INVARIANT
37#else
38#define MY_LOCALE LOCALE_NEUTRAL
39#endif
40#else
41#include <unistd.h>
42#include <ctime>
43#include <sys/times.h>
44#include <sys/time.h>
45#endif
46
47#include <cmath>
48#include <sstream>
49
50namespace lemon {
51  namespace bits {
52    void getWinProcTimes(double &rtime,
53                         double &utime, double &stime,
54                         double &cutime, double &cstime)
55    {
56#ifdef WIN32
57      static const double ch = 4294967296.0e-7;
58      static const double cl = 1.0e-7;
59
60      FILETIME system;
61      GetSystemTimeAsFileTime(&system);
62      rtime = ch * system.dwHighDateTime + cl * system.dwLowDateTime;
63
64      FILETIME create, exit, kernel, user;
65      if (GetProcessTimes(GetCurrentProcess(),&create, &exit, &kernel, &user)) {
66        utime = ch * user.dwHighDateTime + cl * user.dwLowDateTime;
67        stime = ch * kernel.dwHighDateTime + cl * kernel.dwLowDateTime;
68        cutime = 0;
69        cstime = 0;
70      } else {
71        rtime = 0;
72        utime = 0;
73        stime = 0;
74        cutime = 0;
75        cstime = 0;
76      }
77#else
78      timeval tv;
79      gettimeofday(&tv, 0);
80      rtime=tv.tv_sec+double(tv.tv_usec)/1e6;
81
82      tms ts;
83      double tck=sysconf(_SC_CLK_TCK);
84      times(&ts);
85      utime=ts.tms_utime/tck;
86      stime=ts.tms_stime/tck;
87      cutime=ts.tms_cutime/tck;
88      cstime=ts.tms_cstime/tck;
89#endif
90    }
91
92    std::string getWinFormattedDate()
93    {
94      std::ostringstream os;
95#ifdef WIN32
96      SYSTEMTIME time;
97      GetSystemTime(&time);
98      char buf1[11], buf2[9], buf3[5];
99          if (GetDateFormat(MY_LOCALE, 0, &time,
100                        ("ddd MMM dd"), buf1, 11) &&
101          GetTimeFormat(MY_LOCALE, 0, &time,
102                        ("HH':'mm':'ss"), buf2, 9) &&
103          GetDateFormat(MY_LOCALE, 0, &time,
104                        ("yyyy"), buf3, 5)) {
105        os << buf1 << ' ' << buf2 << ' ' << buf3;
106      }
107      else os << "unknown";
108#else
109      timeval tv;
110      gettimeofday(&tv, 0);
111
112      char cbuf[26];
113      ctime_r(&tv.tv_sec,cbuf);
114      os << cbuf;
115#endif
116      return os.str();
117    }
118
119    int getWinRndSeed()
120    {
121#ifdef WIN32
122      FILETIME time;
123      GetSystemTimeAsFileTime(&time);
124      return GetCurrentProcessId() + time.dwHighDateTime + time.dwLowDateTime;
125#else
126      timeval tv;
127      gettimeofday(&tv, 0);
128      return getpid() + tv.tv_sec + tv.tv_usec;
129#endif
130    }
131  }
132}
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