1 | /* emacs edit mode for this file is -*- C -*- */ |
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2 | /* $Id$ */ |
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3 | |
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4 | #define _POSIX_SOURCE 1 |
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5 | |
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6 | #include <config.h> |
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7 | |
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8 | #include <string.h> |
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9 | #include <stdio.h> |
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10 | #include <stdlib.h> |
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11 | |
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12 | #include "memman.h" |
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13 | #include "mmprivate.h" |
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14 | |
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15 | void |
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16 | mmMark( void ) |
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17 | { |
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18 | if ( mm_status != MM_NORMAL ) |
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19 | fprintf( stderr, "can only mark memory in status normal" ); |
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20 | else { |
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21 | mm_status = MM_TMP; |
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22 | mm_normList = mm_theList; |
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23 | mm_theList = mm_tmpList; |
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24 | mm_bytesNorm = mm_bytesUsed; |
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25 | mm_bytesUsed = 0; |
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26 | #ifdef MDEBUG |
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27 | mm_normDBused = mm_theDBused; |
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28 | mm_normDBfree = mm_theDBfree; |
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29 | memset(&mm_theDBused,0,sizeof(mm_theDBused)); |
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30 | memset(&mm_theDBfree,0,sizeof(mm_theDBfree)); |
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31 | #endif /* MDEBUG */ |
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32 | mmMarkHeap(); mmMarkBlocks(); |
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33 | } |
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34 | } |
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35 | |
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36 | void |
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37 | mmSweep( void ) |
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38 | { |
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39 | int i; |
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40 | |
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41 | if ( mm_status != MM_TMP ) |
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42 | fprintf( stderr, "can only sweep memory in status tmp" ); |
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43 | else { |
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44 | mm_status = MM_NORMAL; |
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45 | mm_theList = mm_normList; |
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46 | mm_bytesUsed = mm_bytesNorm; |
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47 | for ( i = 0; i < MAXLIST; i++ ) |
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48 | mm_tmpList[i] = NULL; |
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49 | #ifdef MDEBUG |
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50 | mm_theDBused = mm_normDBused; |
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51 | mm_theDBfree = mm_normDBfree; |
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52 | #endif /* MDEBUG */ |
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53 | mmSweepHeap(); mmSweepBlocks(); |
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54 | } |
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55 | } |
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56 | |
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57 | void |
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58 | mmSwitch( void ) |
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59 | { |
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60 | if ( mm_status == MM_NORMAL ) |
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61 | fprintf( stderr, "can not switch from state normal" ); |
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62 | else { |
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63 | if ( mm_status == MM_SWITCHED ) { |
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64 | mm_normList = mm_theList; |
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65 | mm_theList = mm_tmpList; |
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66 | mm_status = MM_TMP; |
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67 | mm_bytesNorm = mm_bytesUsed; |
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68 | mm_bytesUsed = mm_bytesTmp; |
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69 | #ifdef MDEBUG |
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70 | mm_normDBfree = mm_theDBfree; |
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71 | mm_normDBused = mm_theDBused; |
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72 | mm_theDBfree = mm_tmpDBfree; |
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73 | mm_theDBused = mm_tmpDBused; |
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74 | #endif /* MDEBUG */ |
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75 | } |
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76 | else { |
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77 | mm_tmpList = mm_theList; |
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78 | mm_theList = mm_normList; |
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79 | mm_status = MM_SWITCHED; |
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80 | mm_bytesTmp = mm_bytesUsed; |
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81 | mm_bytesUsed = mm_bytesNorm; |
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82 | #ifdef MDEBUG |
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83 | mm_tmpDBfree = mm_theDBfree; |
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84 | mm_tmpDBused = mm_theDBused; |
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85 | mm_theDBfree = mm_normDBfree; |
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86 | mm_theDBused = mm_normDBused; |
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87 | #endif /* MDEBUG */ |
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88 | } |
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89 | mmSwitchHeap(); mmSwitchBlocks(); |
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90 | } |
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91 | } |
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92 | |
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93 | #ifndef MDEBUG |
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94 | char * |
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95 | mmStrdup( char * s ) |
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96 | { |
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97 | char * rc; |
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98 | if (s==NULL) return NULL; |
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99 | rc = (char*)mmAlloc( 1 + strlen( s ) ); |
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100 | strcpy( rc, s ); |
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101 | return rc; |
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102 | } |
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103 | #else |
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104 | char * |
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105 | mmDBStrdup( char * s, char *fname, int lineno) |
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106 | { |
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107 | char * rc; |
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108 | if (s==NULL) return NULL; |
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109 | rc = (char*)mmDBAlloc( 1 + strlen( s ),fname,lineno ); |
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110 | strcpy( rc, s ); |
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111 | return rc; |
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112 | } |
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113 | #endif |
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114 | |
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115 | int |
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116 | mmMemReal( void ) |
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117 | { |
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118 | return mm_bytesReal; |
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119 | } |
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120 | |
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121 | int |
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122 | mmMemUsed( void ) |
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123 | { |
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124 | if ( mm_status == MM_TMP ) |
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125 | return mm_bytesUsed + mm_bytesNorm; |
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126 | else if ( mm_status == MM_SWITCHED ) |
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127 | return mm_bytesUsed + mm_bytesTmp; |
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128 | else |
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129 | return mm_bytesUsed; |
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130 | } |
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131 | |
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132 | int mmOLdPrintMark=0; |
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133 | |
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134 | void |
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135 | mmCheckPrint( void ) |
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136 | { |
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137 | if ( mm_bytesReal > mm_printMark ) { |
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138 | int i=(mm_bytesReal+1023)/1024; |
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139 | if (i!=mmOLdPrintMark) { |
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140 | fprintf( stdout, "[%dk]", i ); |
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141 | fflush( stdout ); |
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142 | mmOLdPrintMark=i; |
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143 | } |
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144 | mmNewPrintMark(); |
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145 | } |
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146 | } |
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147 | |
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148 | void |
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149 | mmNewPrintMark( void ) |
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150 | { |
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151 | mm_printMark = (mm_bytesReal / (100*1024) + 1) * 1024 * 100; |
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152 | } |
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