| 1 | package tuffy.util; |
| 2 | import java.util.Scanner; |
| 3 | |
| 4 | /** |
| 5 | * Container of methods for debugging purposes. |
| 6 | */ |
| 7 | public class DebugMan { |
| 8 | |
| 9 | private static StringBuilder log = new StringBuilder(); |
| 10 | |
| 11 | public static void log(String s){ |
| 12 | log.append(s); |
| 13 | } |
| 14 | |
| 15 | public static String getLog(){ |
| 16 | return log.toString(); |
| 17 | } |
| 18 | |
| 19 | public static void pause() { |
| 20 | System.out.println("\nPress enter to continue..."); |
| 21 | Scanner in = new Scanner(System.in); |
| 22 | in.nextLine(); |
| 23 | } |
| 24 | |
| 25 | public static boolean runningInWindows(){ |
| 26 | String os = System.getProperty("os.name").toLowerCase(); |
| 27 | return os.contains("win"); |
| 28 | } |
| 29 | |
| 30 | private static final Runtime s_runtime = Runtime.getRuntime (); |
| 31 | public static void runGC() throws Exception |
| 32 | { |
| 33 | // It helps to call Runtime.gc() |
| 34 | // using several method calls: |
| 35 | for (int r = 0; r < 4; ++ r) _runGC (); |
| 36 | } |
| 37 | private static void _runGC () throws Exception |
| 38 | { |
| 39 | long usedMem1 = usedMemoryp (), usedMem2 = Long.MAX_VALUE; |
| 40 | for (int i = 0; (usedMem1 < usedMem2) && (i < 500); ++ i) |
| 41 | { |
| 42 | s_runtime.runFinalization (); |
| 43 | s_runtime.gc (); |
| 44 | Thread.yield(); |
| 45 | |
| 46 | usedMem2 = usedMem1; |
| 47 | usedMem1 = usedMemoryp (); |
| 48 | } |
| 49 | } |
| 50 | |
| 51 | private static long usedMemoryp () |
| 52 | { |
| 53 | return s_runtime.totalMemory () - s_runtime.freeMemory (); |
| 54 | } |
| 55 | |
| 56 | public static long usedMemory(){ |
| 57 | try{ |
| 58 | runGC(); |
| 59 | }catch(Exception e){ |
| 60 | System.err.println(e.getMessage()); |
| 61 | } |
| 62 | long mem0 = Runtime.getRuntime().totalMemory() - |
| 63 | Runtime.getRuntime().freeMemory(); |
| 64 | return mem0; |
| 65 | } |
| 66 | |
| 67 | static private long baseMem = 0; |
| 68 | public static void checkBaseMem(){ |
| 69 | baseMem = usedMemory(); |
| 70 | } |
| 71 | |
| 72 | public static long getBaseMem(){ |
| 73 | return baseMem; |
| 74 | } |
| 75 | |
| 76 | |
| 77 | static private long peakMem = 0; |
| 78 | public static void checkPeakMem(){ |
| 79 | long mem = usedMemory(); |
| 80 | if(mem > peakMem){ |
| 81 | peakMem = mem; |
| 82 | } |
| 83 | } |
| 84 | |
| 85 | public static long getPeakMem(){ |
| 86 | return peakMem; |
| 87 | } |
| 88 | |
| 89 | } |