COIN-OR::LEMON - Graph Library

source: lemon/lemon/bits/windows.cc @ 1340:f70f688d9ef9

Last change on this file since 1340:f70f688d9ef9 was 1340:f70f688d9ef9, checked in by Alpar Juttner <alpar@…>, 5 years ago

Replace #define WIN32 (#595)

File size: 4.0 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) 2003-2013
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 LEMON_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#ifndef LEMON_WIN32
44#include <sys/times.h>
45#endif
46#include <sys/time.h>
47#endif
48
49#include <cmath>
50#include <sstream>
51
52namespace lemon {
53  namespace bits {
54    void getWinProcTimes(double &rtime,
55                         double &utime, double &stime,
56                         double &cutime, double &cstime)
57    {
58#ifdef LEMON_WIN32
59      static const double ch = 4294967296.0e-7;
60      static const double cl = 1.0e-7;
61
62      FILETIME system;
63      GetSystemTimeAsFileTime(&system);
64      rtime = ch * system.dwHighDateTime + cl * system.dwLowDateTime;
65
66      FILETIME create, exit, kernel, user;
67      if (GetProcessTimes(GetCurrentProcess(),&create, &exit, &kernel, &user)) {
68        utime = ch * user.dwHighDateTime + cl * user.dwLowDateTime;
69        stime = ch * kernel.dwHighDateTime + cl * kernel.dwLowDateTime;
70        cutime = 0;
71        cstime = 0;
72      } else {
73        rtime = 0;
74        utime = 0;
75        stime = 0;
76        cutime = 0;
77        cstime = 0;
78      }
79#else
80      timeval tv;
81      gettimeofday(&tv, 0);
82      rtime=tv.tv_sec+double(tv.tv_usec)/1e6;
83
84      tms ts;
85      double tck=sysconf(_SC_CLK_TCK);
86      times(&ts);
87      utime=ts.tms_utime/tck;
88      stime=ts.tms_stime/tck;
89      cutime=ts.tms_cutime/tck;
90      cstime=ts.tms_cstime/tck;
91#endif
92    }
93
94    std::string getWinFormattedDate()
95    {
96      std::ostringstream os;
97#ifdef LEMON_WIN32
98      SYSTEMTIME time;
99      GetSystemTime(&time);
100      char buf1[11], buf2[9], buf3[5];
101      if (GetDateFormat(MY_LOCALE, 0, &time,
102                        ("ddd MMM dd"), buf1, 11) &&
103          GetTimeFormat(MY_LOCALE, 0, &time,
104                        ("HH':'mm':'ss"), buf2, 9) &&
105          GetDateFormat(MY_LOCALE, 0, &time,
106                        ("yyyy"), buf3, 5)) {
107        os << buf1 << ' ' << buf2 << ' ' << buf3;
108      }
109      else os << "unknown";
110#else
111      timeval tv;
112      gettimeofday(&tv, 0);
113
114      char cbuf[26];
115      ctime_r(&tv.tv_sec,cbuf);
116      os << cbuf;
117#endif
118      return os.str();
119    }
120
121    int getWinRndSeed()
122    {
123#ifdef LEMON_WIN32
124      FILETIME time;
125      GetSystemTimeAsFileTime(&time);
126      return GetCurrentProcessId() + time.dwHighDateTime + time.dwLowDateTime;
127#else
128      timeval tv;
129      gettimeofday(&tv, 0);
130      return getpid() + tv.tv_sec + tv.tv_usec;
131#endif
132    }
133
134    WinLock::WinLock() {
135#ifdef LEMON_WIN32
136      CRITICAL_SECTION *lock = new CRITICAL_SECTION;
137      InitializeCriticalSection(lock);
138      _repr = lock;
139#else
140      _repr = 0; //Just to avoid 'unused variable' warning with clang
141#endif
142    }
143
144    WinLock::~WinLock() {
145#ifdef LEMON_WIN32
146      CRITICAL_SECTION *lock = static_cast<CRITICAL_SECTION*>(_repr);
147      DeleteCriticalSection(lock);
148      delete lock;
149#endif
150    }
151
152    void WinLock::lock() {
153#ifdef LEMON_WIN32
154      CRITICAL_SECTION *lock = static_cast<CRITICAL_SECTION*>(_repr);
155      EnterCriticalSection(lock);
156#endif
157    }
158
159    void WinLock::unlock() {
160#ifdef LEMON_WIN32
161      CRITICAL_SECTION *lock = static_cast<CRITICAL_SECTION*>(_repr);
162      LeaveCriticalSection(lock);
163#endif
164    }
165  }
166}
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