COIN-OR::LEMON - Graph Library

source: lemon/lemon/bits/windows.cc

Last change on this file was 1341:c199e9976d93, checked in by Alpar Juttner <alpar@…>, 5 years ago

Resolve VS and MinGW warnings (#595)

File size: 4.1 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#if defined(LEMON_WIN32) && defined(__GNUC__)
25#pragma GCC diagnostic ignored "-Wold-style-cast"
26#endif
27
28#ifdef LEMON_WIN32
29#ifndef WIN32_LEAN_AND_MEAN
30#define WIN32_LEAN_AND_MEAN
31#endif
32#ifndef NOMINMAX
33#define NOMINMAX
34#endif
35#ifdef UNICODE
36#undef UNICODE
37#endif
38#include <windows.h>
39#ifdef LOCALE_INVARIANT
40#define MY_LOCALE LOCALE_INVARIANT
41#else
42#define MY_LOCALE LOCALE_NEUTRAL
43#endif
44#else
45#include <unistd.h>
46#include <ctime>
47#ifndef LEMON_WIN32
48#include <sys/times.h>
49#endif
50#include <sys/time.h>
51#endif
52
53#include <cmath>
54#include <sstream>
55
56namespace lemon {
57  namespace bits {
58    void getWinProcTimes(double &rtime,
59                         double &utime, double &stime,
60                         double &cutime, double &cstime)
61    {
62#ifdef LEMON_WIN32
63      static const double ch = 4294967296.0e-7;
64      static const double cl = 1.0e-7;
65
66      FILETIME system;
67      GetSystemTimeAsFileTime(&system);
68      rtime = ch * system.dwHighDateTime + cl * system.dwLowDateTime;
69
70      FILETIME create, exit, kernel, user;
71      if (GetProcessTimes(GetCurrentProcess(),&create, &exit, &kernel, &user)) {
72        utime = ch * user.dwHighDateTime + cl * user.dwLowDateTime;
73        stime = ch * kernel.dwHighDateTime + cl * kernel.dwLowDateTime;
74        cutime = 0;
75        cstime = 0;
76      } else {
77        rtime = 0;
78        utime = 0;
79        stime = 0;
80        cutime = 0;
81        cstime = 0;
82      }
83#else
84      timeval tv;
85      gettimeofday(&tv, 0);
86      rtime=tv.tv_sec+double(tv.tv_usec)/1e6;
87
88      tms ts;
89      double tck=sysconf(_SC_CLK_TCK);
90      times(&ts);
91      utime=ts.tms_utime/tck;
92      stime=ts.tms_stime/tck;
93      cutime=ts.tms_cutime/tck;
94      cstime=ts.tms_cstime/tck;
95#endif
96    }
97
98    std::string getWinFormattedDate()
99    {
100      std::ostringstream os;
101#ifdef LEMON_WIN32
102      SYSTEMTIME time;
103      GetSystemTime(&time);
104      char buf1[11], buf2[9], buf3[5];
105      if (GetDateFormat(MY_LOCALE, 0, &time,
106                        ("ddd MMM dd"), buf1, 11) &&
107          GetTimeFormat(MY_LOCALE, 0, &time,
108                        ("HH':'mm':'ss"), buf2, 9) &&
109          GetDateFormat(MY_LOCALE, 0, &time,
110                        ("yyyy"), buf3, 5)) {
111        os << buf1 << ' ' << buf2 << ' ' << buf3;
112      }
113      else os << "unknown";
114#else
115      timeval tv;
116      gettimeofday(&tv, 0);
117
118      char cbuf[26];
119      ctime_r(&tv.tv_sec,cbuf);
120      os << cbuf;
121#endif
122      return os.str();
123    }
124
125    int getWinRndSeed()
126    {
127#ifdef LEMON_WIN32
128      FILETIME time;
129      GetSystemTimeAsFileTime(&time);
130      return GetCurrentProcessId() + time.dwHighDateTime + time.dwLowDateTime;
131#else
132      timeval tv;
133      gettimeofday(&tv, 0);
134      return getpid() + tv.tv_sec + tv.tv_usec;
135#endif
136    }
137
138    WinLock::WinLock() {
139#ifdef LEMON_WIN32
140      CRITICAL_SECTION *lock = new CRITICAL_SECTION;
141      InitializeCriticalSection(lock);
142      _repr = lock;
143#else
144      _repr = 0; //Just to avoid 'unused variable' warning with clang
145#endif
146    }
147
148    WinLock::~WinLock() {
149#ifdef LEMON_WIN32
150      CRITICAL_SECTION *lock = static_cast<CRITICAL_SECTION*>(_repr);
151      DeleteCriticalSection(lock);
152      delete lock;
153#endif
154    }
155
156    void WinLock::lock() {
157#ifdef LEMON_WIN32
158      CRITICAL_SECTION *lock = static_cast<CRITICAL_SECTION*>(_repr);
159      EnterCriticalSection(lock);
160#endif
161    }
162
163    void WinLock::unlock() {
164#ifdef LEMON_WIN32
165      CRITICAL_SECTION *lock = static_cast<CRITICAL_SECTION*>(_repr);
166      LeaveCriticalSection(lock);
167#endif
168    }
169  }
170}
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