lemon/bits/windows.cc
author Peter Kovacs <kpeter@inf.elte.hu>
Fri, 20 Feb 2009 20:36:26 +0000
changeset 498 afd134142111
child 493 3f0ddf255524
permissions -rw-r--r--
Various fixes for compiling on AIX (#211, #212)
     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 #include <windows.h>
    32 #else
    33 #include <unistd.h>
    34 #include <ctime>
    35 #include <sys/times.h>
    36 #include <sys/time.h>
    37 #endif
    38 
    39 #include <cmath>
    40 #include <sstream>
    41 
    42 namespace lemon {
    43   namespace bits {
    44     void getWinProcTimes(double &rtime,
    45                          double &utime, double &stime,
    46                          double &cutime, double &cstime)
    47     {
    48 #ifdef WIN32
    49       static const double ch = 4294967296.0e-7;
    50       static const double cl = 1.0e-7;
    51 
    52       FILETIME system;
    53       GetSystemTimeAsFileTime(&system);
    54       rtime = ch * system.dwHighDateTime + cl * system.dwLowDateTime;
    55 
    56       FILETIME create, exit, kernel, user;
    57       if (GetProcessTimes(GetCurrentProcess(),&create, &exit, &kernel, &user)) {
    58         utime = ch * user.dwHighDateTime + cl * user.dwLowDateTime;
    59         stime = ch * kernel.dwHighDateTime + cl * kernel.dwLowDateTime;
    60         cutime = 0;
    61         cstime = 0;
    62       } else {
    63         rtime = 0;
    64         utime = 0;
    65         stime = 0;
    66         cutime = 0;
    67         cstime = 0;
    68       }
    69 #else
    70       timeval tv;
    71       gettimeofday(&tv, 0);
    72       rtime=tv.tv_sec+double(tv.tv_usec)/1e6;
    73 
    74       tms ts;
    75       double tck=sysconf(_SC_CLK_TCK);
    76       times(&ts);
    77       utime=ts.tms_utime/tck;
    78       stime=ts.tms_stime/tck;
    79       cutime=ts.tms_cutime/tck;
    80       cstime=ts.tms_cstime/tck;
    81 #endif
    82     }
    83 
    84     std::string getWinFormattedDate()
    85     {
    86       std::ostringstream os;
    87 #ifdef WIN32
    88       SYSTEMTIME time;
    89       GetSystemTime(&time);
    90 #if defined(_MSC_VER) && (_MSC_VER < 1500)
    91       LPWSTR buf1, buf2, buf3;
    92       if (GetDateFormat(LOCALE_USER_DEFAULT, 0, &time,
    93                         L"ddd MMM dd", buf1, 11) &&
    94           GetTimeFormat(LOCALE_USER_DEFAULT, 0, &time,
    95                         L"HH':'mm':'ss", buf2, 9) &&
    96           GetDateFormat(LOCALE_USER_DEFAULT, 0, &time,
    97                         L"yyyy", buf3, 5)) {
    98         os << buf1 << ' ' << buf2 << ' ' << buf3;
    99       }
   100 #else
   101       char buf1[11], buf2[9], buf3[5];
   102       if (GetDateFormat(LOCALE_USER_DEFAULT, 0, &time,
   103                         "ddd MMM dd", buf1, 11) &&
   104           GetTimeFormat(LOCALE_USER_DEFAULT, 0, &time,
   105                         "HH':'mm':'ss", buf2, 9) &&
   106           GetDateFormat(LOCALE_USER_DEFAULT, 0, &time,
   107                         "yyyy", buf3, 5)) {
   108         os << buf1 << ' ' << buf2 << ' ' << buf3;
   109       }
   110 #endif
   111       else os << "unknown";
   112 #else
   113       timeval tv;
   114       gettimeofday(&tv, 0);
   115 
   116       char cbuf[26];
   117       ctime_r(&tv.tv_sec,cbuf);
   118       os << cbuf;
   119 #endif
   120       return os.str();
   121     }
   122 
   123     int getWinRndSeed()
   124     {
   125 #ifdef WIN32
   126       FILETIME time;
   127       GetSystemTimeAsFileTime(&time);
   128       return GetCurrentProcessId() + time.dwHighDateTime + time.dwLowDateTime;
   129 #else
   130       timeval tv;
   131       gettimeofday(&tv, 0);
   132       return getpid() + tv.tv_sec + tv.tv_usec;
   133 #endif
   134     }
   135   }
   136 }