[162] | 1 | |
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| 2 | #include <math.h> |
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| 3 | #include <stdio.h> |
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| 4 | #include <stdlib.h> |
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| 5 | #include <time.h> |
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| 6 | |
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| 7 | #include "common.h" |
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| 8 | |
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| 9 | #ifdef _X_WINDOW_ |
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| 10 | #include "xwindow.h" |
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| 11 | #endif |
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| 12 | |
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| 13 | #ifndef _MSC_VER |
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| 14 | #include <unistd.h> |
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| 15 | #include <sys/types.h> |
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| 16 | #include <sys/time.h> |
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| 17 | #include <sys/times.h> |
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| 18 | #include <sys/resource.h> |
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| 19 | #else |
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| 20 | #include <windows.h> |
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| 21 | #include <sys/types.h> |
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| 22 | #include <sys/timeb.h> |
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| 23 | #endif |
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| 24 | |
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| 25 | |
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| 26 | |
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| 27 | // global file streams |
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| 28 | ofstream Debug; |
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| 29 | |
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| 30 | int CGlobals::Special=0; |
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| 31 | |
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| 32 | |
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| 33 | // Puts the specified number of spaces out to cout. Used for |
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| 34 | // indentation during CObject3D::Describe(). |
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| 35 | void |
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| 36 | indent(ostream &app, int ind) |
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| 37 | { |
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| 38 | int i; |
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| 39 | |
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| 40 | for (i = 0; i < ind; i++) |
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| 41 | app << ' '; |
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| 42 | } |
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| 43 | |
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| 44 | |
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| 45 | |
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| 46 | Real Limits::Threshold = 1e-6f; |
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| 47 | Real Limits::Small = 0.01f; |
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| 48 | Real Limits::Infinity = 1e20f; |
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| 49 | |
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| 50 | |
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| 51 | |
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| 52 | |
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| 53 | Real |
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| 54 | Random(Real max) |
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| 55 | { |
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| 56 | #ifdef __UNIX__ |
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| 57 | return (random()*max/0x7FFFFFFF); |
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| 58 | #else |
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| 59 | return (((Real)rand())/RAND_MAX)*max; |
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| 60 | #endif |
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| 61 | |
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| 62 | } |
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| 63 | |
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| 64 | int Random(int max) |
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| 65 | { |
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| 66 | return rand()%max; |
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| 67 | } |
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| 68 | |
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| 69 | void Randomize() |
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| 70 | { |
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| 71 | time_t t; |
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| 72 | srand((unsigned) time(&t)); |
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| 73 | } |
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| 74 | |
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| 75 | void |
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| 76 | Randomize(const unsigned int seed) |
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| 77 | { |
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| 78 | srand(seed); |
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| 79 | } |
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| 80 | |
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| 81 | void GetKey(char *s) |
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| 82 | { |
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| 83 | #ifdef _X_WINDOW_ |
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| 84 | XWaitForButton(s); |
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| 85 | #else |
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| 86 | getch(); |
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| 87 | #endif |
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| 88 | } |
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| 89 | |
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| 90 | #ifdef _MSC_VER |
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| 91 | static bool hasHRTimer = false; |
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| 92 | static LARGE_INTEGER hrFreq; |
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| 93 | #endif |
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| 94 | |
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| 95 | |
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| 96 | void |
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| 97 | InitTiming() |
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| 98 | { |
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| 99 | #ifdef _MSC_VER |
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| 100 | hasHRTimer = (bool) QueryPerformanceFrequency(&hrFreq); |
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| 101 | #endif |
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| 102 | } |
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| 103 | |
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| 104 | long |
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| 105 | GetTime() |
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| 106 | { |
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| 107 | #ifndef _MSC_VER |
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| 108 | static struct rusage r; |
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| 109 | getrusage(RUSAGE_SELF,&r); |
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| 110 | return r.ru_utime.tv_usec+1000000*r.ru_utime.tv_sec; |
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| 111 | #else |
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| 112 | if (hasHRTimer) { |
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| 113 | LARGE_INTEGER counter; |
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| 114 | QueryPerformanceCounter(&counter); |
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| 115 | // return in usec |
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| 116 | return (long) (1000000*counter.QuadPart/(hrFreq.QuadPart)); |
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| 117 | } else { |
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| 118 | static struct _timeb mtime; |
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| 119 | _ftime(&mtime); |
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| 120 | |
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| 121 | return 1000*(1000*mtime.time + mtime.millitm); |
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| 122 | } |
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| 123 | #endif |
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| 124 | } |
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| 125 | |
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| 126 | |
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| 127 | long |
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| 128 | GetRealTime() |
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| 129 | { |
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| 130 | #ifndef _MSC_VER |
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| 131 | static struct timeval _tstart; |
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| 132 | static struct timezone tz; |
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| 133 | gettimeofday(&_tstart,&tz); |
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| 134 | return (long)(1000000*_tstart.tv_sec + _tstart.tv_usec); |
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| 135 | #else |
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| 136 | if (hasHRTimer) { |
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| 137 | LARGE_INTEGER counter; |
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| 138 | QueryPerformanceCounter(&counter); |
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| 139 | // return in usec |
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| 140 | return (long) (1000000*counter.QuadPart/(hrFreq.QuadPart)); |
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| 141 | } else { |
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| 142 | static struct _timeb mtime; |
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| 143 | _ftime(&mtime); |
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| 144 | return 1000*(1000*mtime.time + mtime.millitm); |
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| 145 | } |
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| 146 | #endif |
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| 147 | } |
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| 148 | |
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| 149 | // return time diff. in ms |
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| 150 | Real |
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| 151 | TimeDiff(long time1,long time2) // in ms |
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| 152 | { |
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| 153 | const Real clk=1.0e-3f; // ticks per second |
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| 154 | long t=time2-time1; |
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| 155 | |
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| 156 | return ((t<0)?-t:t)*clk; |
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| 157 | } |
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| 158 | |
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| 159 | char * |
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| 160 | TimeString() |
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| 161 | { |
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| 162 | time_t t; |
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| 163 | time(&t); |
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| 164 | return ctime(&t); |
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| 165 | } |
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| 166 | |
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| 167 | char * |
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| 168 | GetAbsPath(char *name) |
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| 169 | { |
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| 170 | // char *url = new char[strlen(name)+1]; |
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| 171 | // strcpy(url,name); |
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| 172 | |
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| 173 | // get the absolute path |
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| 174 | int c = strlen(name); |
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| 175 | int i = c-1; |
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| 176 | bool wasDot = false; |
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| 177 | // search for double dot |
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| 178 | for (;i>=0;i--) |
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| 179 | if (name[i]=='.') { |
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| 180 | if (wasDot) |
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| 181 | break; |
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| 182 | wasDot = true; |
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| 183 | } else |
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| 184 | wasDot = false; |
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| 185 | |
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| 186 | if (i>0) |
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| 187 | i+=3; |
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| 188 | if (i<0) |
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| 189 | i=0; |
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| 190 | |
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| 191 | char *url = new char[c-i+1]; |
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| 192 | int j=0; |
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| 193 | for (;i<c;i++,j++) |
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| 194 | url[j] = name[i]; |
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| 195 | url[j]=0; |
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| 196 | |
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| 197 | return url; |
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| 198 | } |
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| 199 | |
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| 200 | char * |
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| 201 | GetPath(const char *s) |
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| 202 | { |
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| 203 | int i=strlen(s); |
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| 204 | for (; i>0; i--) { |
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| 205 | if (s[i]=='/' || s[i]=='\\') |
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| 206 | break; |
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| 207 | } |
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| 208 | |
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| 209 | char *path = new char[i+1]; |
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| 210 | int j=0; |
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| 211 | for (; j<i; j++) |
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| 212 | path[j] = s[j]; |
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| 213 | path[j] = 0; |
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| 214 | return path; |
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| 215 | } |
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| 216 | |
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| 217 | |
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| 218 | char * |
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| 219 | strdup(char *a) |
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| 220 | { |
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| 221 | if (a) { |
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| 222 | char *s = new char[strlen(a)+1]; |
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| 223 | strcpy(s,a); |
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| 224 | return s; |
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| 225 | } else |
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| 226 | return NULL; |
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| 227 | } |
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| 228 | |
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| 229 | bool |
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| 230 | FileExists(char *filename) |
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| 231 | { |
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| 232 | FILE *f; |
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| 233 | |
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| 234 | f = fopen(filename,"r"); |
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| 235 | if (f) { |
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| 236 | fclose(f); |
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| 237 | return true; |
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| 238 | } |
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| 239 | return false; |
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| 240 | } |
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| 241 | |
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| 242 | |
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| 243 | #if 0 |
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| 244 | bool |
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| 245 | CreateDir(char *dir) |
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| 246 | { |
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| 247 | #ifdef _MSC_VER |
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| 248 | HANDLE fFile; // File Handle |
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| 249 | WIN32_FIND_DATA fileinfo; // File Information Structure |
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| 250 | int n = strlen(dir) - 1; |
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| 251 | |
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| 252 | if (dir[n] == '\\' || dir[n] == '/') |
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| 253 | dir[n]=0; |
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| 254 | |
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| 255 | fFile = FindFirstFile(dir, &fileinfo); |
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| 256 | |
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| 257 | // if the file exists and it is a directory |
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| 258 | if (fileinfo.dwFileAttributes == FILE_ATTRIBUTE_DIRECTORY) { |
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| 259 | // Directory Exists close file and return |
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| 260 | FindClose(fFile); |
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| 261 | return true; |
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| 262 | } |
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| 263 | |
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| 264 | FindClose(fFile); |
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| 265 | |
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| 266 | // Now lets cycle through the String Array and create each directory in turn |
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| 267 | if (CreateDirectory(dir, 0)) { |
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| 268 | SetFileAttributes(dir, FILE_ATTRIBUTE_NORMAL); |
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| 269 | return true; |
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| 270 | } else { |
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| 271 | char *temp = GetPath(dir); |
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| 272 | |
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| 273 | if (strcmp(temp, dir)!=0) { |
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| 274 | CreateDir(temp); |
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| 275 | if (CreateDirectory(dir, 0)) { |
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| 276 | SetFileAttributes(dir, FILE_ATTRIBUTE_NORMAL); |
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| 277 | return true; |
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| 278 | } |
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| 279 | } |
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| 280 | delete temp; |
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| 281 | } |
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| 282 | Debug << "cannot create directory " << dir << endl; |
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| 283 | #endif |
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| 284 | return false; |
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| 285 | } |
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| 286 | #endif |
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