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1 /* |
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2 * Copyright (c) 2006 Nokia Corporation and/or its subsidiary(-ies). |
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3 * All rights reserved. |
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4 * This component and the accompanying materials are made available |
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5 * under the terms of the License "Eclipse Public License v1.0" |
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6 * which accompanies this distribution, and is available |
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7 * at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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8 * |
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9 * Initial Contributors: |
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10 * Nokia Corporation - initial contribution. |
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11 * |
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12 * Contributors: |
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13 * |
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14 * Description: |
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15 * |
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16 */ |
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17 |
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18 #ifndef _MEMORYLOGGING_H |
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19 #define _MEMORYLOGGING_H |
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20 |
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21 // INCLUDES |
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22 |
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23 #include <e32std.h> |
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24 #include <e32def.h> |
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25 #include <flogger.h> |
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26 #include <f32file.h> |
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27 |
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28 #ifdef OOM_LOGGING |
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29 // CONSTANTS |
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30 |
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31 _LIT( KMEMLogDir, "WebCore"); |
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32 _LIT( KMEMLogFile, "Memory.log"); |
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33 _LIT8( KFuncMemLogBegin, "BEGIN: %S @ %S/%d InSize -> %d" ); |
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34 _LIT8( KFuncMemLogEnd, "END: Peek -> %d Diff -> %d Accumulated Peek -> %d" ); |
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35 _LIT8( KTab, "\t" ); |
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36 |
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37 // MACROS |
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38 |
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39 #define MEM_LOG(a) { _LIT8(temp, a); RFileLogger::Write(KMEMLogDir, KMEMLogFile, EFileLoggingModeAppend, temp); } |
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40 #define MEM_LOGF FPrint |
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41 |
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42 // FUNCTION DECLARATIONS |
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43 |
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44 inline void FPrint(const TRefByValue<const TDesC8> aFmt, ...) |
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45 { |
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46 VA_LIST list; |
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47 VA_START(list,aFmt); |
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48 RFileLogger::WriteFormat(KMEMLogDir, KMEMLogFile, EFileLoggingModeAppend, aFmt, list); |
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49 } |
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50 |
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51 // CLASS DECLARATION |
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52 |
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53 /** |
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54 * A utility class to record the memory usage inside a function |
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55 * @lib memman.lib |
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56 * @since 3.1 |
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57 */ |
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58 class FunctionLogger |
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59 { |
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60 public: |
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61 inline FunctionLogger( const TDesC8& func, const TDesC8& file, TInt line, TInt size ); |
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62 inline ~FunctionLogger(); |
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63 |
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64 TInt _peek; |
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65 TInt _used; |
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66 TInt _accum; |
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67 TInt _inSize; |
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68 static RPointerArray<FunctionLogger> loggers; |
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69 }; |
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70 |
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71 // MEMBER FUNCTIONS |
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72 |
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73 //----------------------------------------------------------------------------- |
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74 // FunctionLogger::FunctionLogger |
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75 //----------------------------------------------------------------------------- |
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76 inline FunctionLogger::FunctionLogger( const TDesC8& func, const TDesC8& file, TInt line, TInt size ) |
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77 : _peek( 0 ), _used( 0 ), _accum( 0 ) |
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78 { |
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79 TBuf8<512> buf; |
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80 |
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81 // indent |
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82 for( TInt i=0; i<loggers.Count(); ++i ) buf.Append( KTab ); |
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83 |
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84 buf.Append( KFuncMemLogBegin ); |
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85 |
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86 // write the logger info |
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87 MEM_LOGF( buf, &func, &file, line, size ); |
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88 _inSize = size; |
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89 |
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90 // insert this logger to the head of loggers array |
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91 loggers.Insert( this, 0 ); |
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92 } |
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93 |
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94 //----------------------------------------------------------------------------- |
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95 // FunctionLogger::~FunctionLogger |
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96 //----------------------------------------------------------------------------- |
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97 inline FunctionLogger::~FunctionLogger() |
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98 { |
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99 TBuf8<512> buf; |
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100 |
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101 // indent |
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102 for( TInt i=0; i<loggers.Count()-1; ++i ) buf.Append( KTab ); |
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103 |
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104 buf.Append( KFuncMemLogEnd ); |
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105 |
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106 _accum += _peek; |
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107 |
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108 MEM_LOGF( buf, _peek, _used, _accum ); |
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109 |
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110 |
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111 // remove the logger |
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112 loggers.Remove( 0 ); |
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113 |
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114 // update its parents' _accum |
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115 if( loggers.Count() > 0 ) |
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116 for( TInt i=0; i<loggers.Count(); ++i ) |
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117 loggers[ i ]->_accum += _peek; |
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118 } |
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119 #else // OOM_LOGGING |
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120 #define MEM_LOG {} |
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121 #define MEM_LOGF {} |
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122 #endif |
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123 |
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124 #endif |
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125 // END OF FILE |