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1 #include <string.h>
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2 #include <stdio.h>
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3 #include "OSAPI.h"
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4
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5 #include "Allocator.h"
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6
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7 #include "mm7_data.h"
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8
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9
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10
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11 Allocator *pAllocator; // idb
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12
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13
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14
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15
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16
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17 void __fastcall CheckMemoryAccessibility(void *pBase, DWORD uSize);
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18
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19
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20
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21 //----- (00426755) --------------------------------------------------------
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22 void *Allocator::AllocNamedChunk(const void *pPrevPtrValue, unsigned int uSize, const char *pName)
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23 {
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24 //Allocator *v4; // esi@1
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25 unsigned int v5; // eax@7
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26 void *result; // eax@8
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363
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27 // unsigned int *pNumBuffersUsed; // ebx@12
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0
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28 unsigned int v8; // edi@15
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29 char v9; // zf@15
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30 int v10; // eax@16
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31 void **v11; // ebx@19
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32 void *v12; // eax@22
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33 unsigned int Size; // [sp+14h] [bp+Ch]@16
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34
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363
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35 int aligned_size;
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36
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37
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38 if ( pPrevPtrValue && !aborting_app )
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39 AbortWithError();
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40 if ( !bBigBufferAllocated && !aborting_app )
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41 AbortWithError();
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42
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43 if (!uSize)
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44 return 0;
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45
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46 if (((uSize & 0x80000000u) != 0) && !aborting_app)
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47 AbortWithError();
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48
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49 if (uNumBuffersUsed == 6000 && !aborting_app)
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50 AbortWithError();
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51
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52 ++uNumBuffersUsed;
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53
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54 if (!bUseBigBuffer)
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55 {
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56 pMemoryBuffers[uNumBuffersUsed] = malloc(uSize);
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57 if (pMemoryBuffers[uNumBuffersUsed])
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58 uMemoryBuffersSizes[uNumBuffersUsed] = uSize;
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59 else
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60 {
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61 if ( !aborting_app )
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62 AbortWithError();
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63 }
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64 }
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65 else
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66 {
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67
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68 aligned_size =(uSize&0xFFFFFFFC) + 4;
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69
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70 if ((uNextFreeOffsetInBigBuffer +aligned_size) > uBigBufferSizeAligned)
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71 {
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72 printf("Id: %s Size: %i", pName, aligned_size);
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73 CreateFileDump( "Memory");
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74 if ( !aborting_app )
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75 AbortWithError();
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76 }
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77
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697
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78 pMemoryBuffers[uNumBuffersUsed] = (char *)pBigMemoryBuffer + uNextFreeOffsetInBigBuffer;//(char *)(pBigBufferAligned) + uNextFreeOffsetInBigBuffer;
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363
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79 uMemoryBuffersSizes[uNumBuffersUsed] =aligned_size;
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80
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81 if (pName)
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82 strncpy(pMemoryBuffersNames[uNumBuffersUsed], pName, 11);
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83 uNextFreeOffsetInBigBuffer += aligned_size;
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84 }
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85 return pMemoryBuffers[uNumBuffersUsed];
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86
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87 /*
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0
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88 //v4 = this;
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89 if ( pPrevPtrValue && !aborting_app )
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90 AbortWithError();
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91 if ( !bBigBufferAllocated && !aborting_app )
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92 AbortWithError();
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93 v5 = uSize;
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94 if ( uSize )
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95 {
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96 if ( (uSize & 0x80000000u) != 0 && !aborting_app )
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97 {
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98 AbortWithError();
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99 v5 = uSize;
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100 }
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101 pNumBuffersUsed = &uNumBuffersUsed;
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102 if (uNumBuffersUsed == 6000 && !aborting_app)
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103 {
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104 AbortWithError();
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105 v5 = uSize;
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106 }
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107 v8 = *pNumBuffersUsed;
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108 v9 = bUseBigBuffer == 0;
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109 ++*pNumBuffersUsed;
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110 if ( v9 )
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111 {
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112 v12 = malloc(v5);
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113 v11 = &pMemoryBuffers[v8];
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114 *v11 = v12;
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115 if ( v12 )
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116 {
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117 uMemoryBuffersSizes[v8] = uSize;
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118 }
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119 else
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120 {
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121 if ( !aborting_app )
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122 AbortWithError();
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123 }
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124 }
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125 else
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126 {
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127 LOBYTE(v5) = v5 & 0xFC;
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128 v10 = v5 + 4;
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129 Size = v10;
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130 if ( v10 + uNextFreeOffsetInBigBuffer > uBigBufferSizeAligned )
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131 {
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132 printf("Id: %s Size: %i\n", pName, v10);
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133 CreateFileDump("Memory");
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134 if ( !aborting_app )
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135 AbortWithError();
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136 }
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137 v11 = &pMemoryBuffers[v8];
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138 *v11 = (char *)pBigMemoryBuffer + uNextFreeOffsetInBigBuffer;
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139 uMemoryBuffersSizes[v8] = Size;
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140 if (pName)
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141 strncpy(pMemoryBuffersNames[v8], pName, 11);
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142 uNextFreeOffsetInBigBuffer += Size;
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143 }
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144 result = *v11;
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145 }
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146 else
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147 {
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148 result = 0;
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149 }
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363
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150 return result;*/
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0
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151 }
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152 // 720018: using guessed type int aborting_app;
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153
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154
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155
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156 //----- (004266CD) --------------------------------------------------------
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157 bool Allocator::Initialize(unsigned int uNumKBytes)
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158 {
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159 if (bBigBufferAllocated)
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160 return false;
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161
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162 if (!uNumKBytes)
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163 return false;
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164
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165 pBigMemoryBuffer = malloc(uNumKBytes * 1024);
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166 if (!pBigMemoryBuffer)
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167 return false;
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168
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363
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169 pBigBufferAligned = (void *)((unsigned int)(pBigMemoryBuffer) & 0xFFFF0000 + 4096);
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170 //(char *)pBigMemoryBuffer + -((unsigned __int16)pBigMemoryBuffer & 0xFFF) + 4096;
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0
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171 uBigBufferSizeAligned = (uNumKBytes * 1024) - 4096;
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172
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173 uNumBuffersUsed = 0;
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174 uNextFreeOffsetInBigBuffer = 0;
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175
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176 bUseBigBuffer = true;
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177 return bBigBufferAllocated = true;
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178 }
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179
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180
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181 //----- (00426474) --------------------------------------------------------
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182 void Allocator::FreeChunk(void *ptr)
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183 {
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184 Allocator *v2; // esi@1
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185 unsigned int v3; // eax@5
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186 signed int i; // edi@5
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187 unsigned int v5; // eax@13
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188 signed int v6; // ecx@16
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189 signed int j; // edx@16
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190 char v8; // zf@20
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191
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363
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192
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193
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194 unsigned int uBuffindx;
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195 unsigned int indx;
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196
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197 if (ptr)
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198 {
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199 if ((!bBigBufferAllocated)&& (!aborting_app ))
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200 AbortWithError();
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201 for (indx = 0; indx <=uNumBuffersUsed; ++indx)
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202 if (pMemoryBuffers[indx] == ptr)
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203 break;
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697
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204 if ((indx>uNumBuffersUsed)&& !aborting_app )
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205 AbortWithError(); //to detect memory problems - uncomment
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363
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206 if (!bUseBigBuffer)
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207 free(pMemoryBuffers[indx]);
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208 pMemoryBuffers[indx] = NULL;
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209 uMemoryBuffersSizes[indx] = 0;
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210 pMemoryBuffersNames[indx][0] = 0;
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211 if (indx == (uNumBuffersUsed-1))
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212 {
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213 if (indx>0)
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214 {
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215 uBuffindx = 0;
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216 for (j = 0; j < uNumBuffersUsed-1; ++j)
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217 {
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218 if (pMemoryBuffers[j])
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219 uBuffindx = j;
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220 }
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221 uNumBuffersUsed = uBuffindx + 1;
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222 if (bUseBigBuffer)
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223 uNextFreeOffsetInBigBuffer =
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224 ((long)((char*)pMemoryBuffers[uBuffindx] -(char*)pBigBufferAligned)+ uMemoryBuffersSizes[uBuffindx]);
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225 }
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226 else
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227 {
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228 uNumBuffersUsed = 0;
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229 uNextFreeOffsetInBigBuffer = 0;
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230 }
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231 }
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232 }
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233
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234 /*
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0
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235 v2 = this;
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236 if ( ptr )
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237 {
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238 if ( !this->bBigBufferAllocated && !aborting_app )
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239 AbortWithError();
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240 v3 = v2->uNumBuffersUsed;
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241 for ( i = 0; i < (signed int)v3; ++i )
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242 {
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243 if ( v2->pMemoryBuffers[i] == ptr )
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244 break;
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245 }
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246 if ( i >= (signed int)v3 && !aborting_app )
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247 AbortWithError();
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248 if ( !v2->bUseBigBuffer )
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249 free(v2->pMemoryBuffers[i]);
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250 v2->pMemoryBuffers[i] = 0;
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251 v2->uMemoryBuffersSizes[i] = 0;
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252 LOBYTE(v2->pMemoryBuffers[3 * i + 12000]) = 0;
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253 v5 = v2->uNumBuffersUsed;
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254 if ( i == v5 - 1 )
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255 {
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256 if ( i )
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257 {
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258 v6 = 0;
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259 for ( j = 0; j < (signed int)v5; ++j )
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260 {
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261 if ( v2->pMemoryBuffers[j] )
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262 v6 = j;
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263 }
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264 v8 = v2->bUseBigBuffer == 0;
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265 v2->uNumBuffersUsed = v6 + 1;
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266 if ( !v8 )
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267 v2->uNextFreeOffsetInBigBuffer = (char *)v2->pMemoryBuffers[v6]
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268 + v2->uMemoryBuffersSizes[v6]
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269 - v2->pBigMemoryBuffer;
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270 }
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271 else
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272 {
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273 v2->uNextFreeOffsetInBigBuffer = 0;
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274 v2->uNumBuffersUsed = 0;
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275 }
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276 }
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363
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277 }*/
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0
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278 }
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279 // 720018: using guessed type int aborting_app;
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280
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281
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282
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283 //----- (00426429) --------------------------------------------------------
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284 Allocator::Allocator()
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285 {
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286 Allocator *v1; // eax@1
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287 signed int v2; // ecx@1
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288 int v3; // edx@1
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289
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290 v1 = this;
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291 v2 = 0;
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292 v1->uBigBufferSizeAligned = 0;
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293 v1->bBigBufferAllocated = 0;
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294 v3 = (int)v1->pMemoryBuffersNames;
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295 do
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296 {
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297 v1->pMemoryBuffers[v2] = 0;
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298 v1->uMemoryBuffersSizes[v2] = 0;
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299 *(char *)v3 = 0;
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300 ++v2;
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301 v3 += 12;
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302 }
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303 while ( v2 < 6000 );
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304 v1->uDumpsCount = 0;
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305 }
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306
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307
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308 //----- (0042654C) --------------------------------------------------------
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309 bool Allocator::CreateFileDump(const char *a1)
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310 {
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311 Allocator *v2; // esi@1
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312 unsigned int v3; // ST44_4@1
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313 FILE *v4; // eax@1
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314 FILE *v5; // edi@1
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315 bool result; // eax@2
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316 unsigned int v7; // ecx@5
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317 int v8; // edx@5
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318 int v9; // eax@6
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319 int v10; // eax@8
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320 int v11; // ecx@8
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321 signed int v12; // ebx@8
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322 signed int v13; // ebx@10
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323 struct _MEMORYSTATUS memstat; // [sp+8h] [bp-38h]@5
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324 char Filename[20]; // [sp+28h] [bp-18h]@1
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325 unsigned int *v16; // [sp+3Ch] [bp-4h]@11
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326 int a1a; // [sp+48h] [bp+8h]@11
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327
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328 v2 = this;
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329 v3 = this->uDumpsCount;
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330 this->uDumpsCount = v3 + 1;
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331 sprintf(Filename, "Mem%03i.txt", v3);
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332 v4 = fopen(Filename, "w");
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333 v5 = v4;
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334 if ( v4 )
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335 {
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336 if ( a1 )
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337 fprintf(v4, "%s\n\n", a1);
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338 fprintf(v5, "Windows Memory Status");
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339 GlobalMemoryStatus(&memstat);
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340 fprintf(v5, "dwLength: %d\n\n", memstat.dwLength);
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341 fprintf(v5, "dwMemoryLoad: %d\n", memstat.dwMemoryLoad);
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342 fprintf(v5, "dwTotalPhys: %d\n", memstat.dwTotalPhys);
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343 fprintf(v5, "dwAvailPhys: %d\n", memstat.dwAvailPhys);
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344 fprintf(v5, "dwTotalPageFile: %d\n", memstat.dwTotalPageFile);
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345 fprintf(v5, "dwAvailPageFile: %d\n", memstat.dwAvailPageFile);
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346 fprintf(v5, "dwTotalVirtual: %d\n", memstat.dwTotalVirtual);
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347 fprintf(v5, "dwAvailVirtual: %d\n\n\n", memstat.dwAvailVirtual);
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348 v7 = v2->uNumBuffersUsed;
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349 v8 = 0;
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350 if ( (signed int)v7 > 0 )
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351 {
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352 v9 = (int)v2->uMemoryBuffersSizes;
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353 do
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354 {
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355 v8 += *(int *)v9;
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356 v9 += 4;
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357 --v7;
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358 }
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359 while ( v7 );
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360 }
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361 v10 = 0;
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362 v11 = (int)v2->uMemoryBuffersSizes;
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363 v12 = 6000;
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364 do
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365 {
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366 v10 += *(int *)v11;
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367 v11 += 4;
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368 --v12;
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369 }
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370 while ( v12 );
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371 fprintf(v5, "Size: %i %i %i\n\n", v2->uNumBuffersUsed, v8, v10);
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372 v13 = 0;
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373 if ( (signed int)v2->uNumBuffersUsed > 0 )
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374 {
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375 v16 = v2->uMemoryBuffersSizes;
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376 a1a = (int)v2->pMemoryBuffersNames;
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377 do
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378 {
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379 fprintf(v5, "%10i %10i %s\n", v13, *v16, a1a);
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380 a1a += 12;
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381 ++v16;
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382 ++v13;
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383 }
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384 while ( v13 < (signed int)v2->uNumBuffersUsed );
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385 }
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386 fclose(v5);
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387 result = 0;
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388 }
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389 else
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390 {
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391 result = 1;
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392 }
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393 return result;
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394 }
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395
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396
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397
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398
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399
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400
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401
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402
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403 //----- (00426892) --------------------------------------------------------
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404 static void __fastcall CheckMemoryAccessibility(void *pBase, DWORD uSize)
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405 {
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406 DWORD v2; // edi@1
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407 DWORD i; // eax@1
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408 struct _SYSTEM_INFO SystemInfo; // [sp+8h] [bp-24h]@1
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409
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410 v2 = uSize;
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411 GetSystemInfo(&SystemInfo);
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412 for ( i = 16 * SystemInfo.dwPageSize; i < v2; i += SystemInfo.dwPageSize )
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413 ;
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414 }
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