1 //------------------------------------------------------------------------------ 2 // Copyright (c) 2001-2004, Haiku 3 // 4 // Permission is hereby granted, free of charge, to any person obtaining a 5 // copy of this software and associated documentation files (the "Software"), 6 // to deal in the Software without restriction, including without limitation 7 // the rights to use, copy, modify, merge, publish, distribute, sublicense, 8 // and/or sell copies of the Software, and to permit persons to whom the 9 // Software is furnished to do so, subject to the following conditions: 10 // 11 // The above copyright notice and this permission notice shall be included in 12 // all copies or substantial portions of the Software. 13 // 14 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 15 // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 16 // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE 17 // AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 18 // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING 19 // FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER 20 // DEALINGS IN THE SOFTWARE. 21 // 22 // File Name: StopWatch.cpp 23 // Author(s): unknown 24 // 25 // Description: Timer Class, mostly useful for debugging 26 // 27 // 28 // 29 //------------------------------------------------------------------------------ 30 31 #include <OS.h> // for system_time() 32 #include <StopWatch.h> 33 34 #include <stdio.h> 35 36 37 BStopWatch::BStopWatch(const char *name, bool silent) 38 : 39 fName(name), 40 fSilent(silent) 41 { 42 Reset(); 43 } 44 45 46 BStopWatch::~BStopWatch() 47 { 48 if (!fSilent){ 49 printf("StopWatch \"%s\": %d usecs.\n", fName, (int)ElapsedTime()); 50 51 if (fLap) { 52 for (int i = 1; i <= fLap; i++){ 53 if (!((i-1)%4)) 54 printf("\n "); 55 printf("[%d: %d#%d] ", i, (int)(fLaps[i]-fStart), (int)(fLaps[i] - fLaps[i -1 ])); 56 } 57 printf("\n"); 58 } 59 } 60 } 61 62 63 void 64 BStopWatch::Suspend() 65 { 66 if (!fSuspendTime) 67 fSuspendTime = system_time(); 68 } 69 70 71 void 72 BStopWatch::Resume() 73 { 74 if (fSuspendTime) { 75 fStart += system_time() - fSuspendTime; 76 fSuspendTime = 0; 77 } 78 } 79 80 81 bigtime_t 82 BStopWatch::Lap() 83 { 84 if (!fSuspendTime){ 85 if (fLap<9) 86 fLap++; 87 fLaps[fLap] = system_time(); 88 89 return system_time() - fStart; 90 } else 91 return 0; 92 } 93 94 95 bigtime_t 96 BStopWatch::ElapsedTime() const 97 { 98 if (fSuspendTime) 99 return fSuspendTime - fStart; 100 else 101 return system_time() - fStart; 102 } 103 104 105 void 106 BStopWatch::Reset() 107 { 108 fStart = system_time(); // store current time 109 fSuspendTime = 0; 110 fLap = 0; // clear laps 111 for (int i = 0; i < 10; i++) 112 fLaps[i] = fStart; 113 } 114 115 116 const char * 117 BStopWatch::Name() const 118 { 119 return fName != NULL ? fName : ""; 120 } 121 122 123 // just for future binary compatibility 124 void BStopWatch::_ReservedStopWatch1() {} 125 void BStopWatch::_ReservedStopWatch2() {} 126 127