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annotate packages/services/memalloc/common/current/tests/malloc2.c @ 126:518f42066aba ecos-sw-2000-09-19

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Merge from eCos master repository on 2000-09-19-06:25:26-BST
author jlarmour
date Tue, 19 Sep 2000 05:53:51 +0000
parents 6ed91473a1cd
children 0d2b193a635f
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1 //=================================================================
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2 //
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3 // malloc2.c
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4 //
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5 // Stress testcase for C library malloc(), calloc() and free()
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6 //
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7 //=================================================================
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8 //####COPYRIGHTBEGIN####
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9 //
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10 // -------------------------------------------
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11 // The contents of this file are subject to the Red Hat eCos Public License
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12 // Version 1.1 (the "License"); you may not use this file except in
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13 // compliance with the License. You may obtain a copy of the License at
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14 // http://www.redhat.com/
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15 //
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16 // Software distributed under the License is distributed on an "AS IS"
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17 // basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the
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18 // License for the specific language governing rights and limitations under
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19 // the License.
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20 //
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21 // The Original Code is eCos - Embedded Configurable Operating System,
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22 // released September 30, 1998.
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23 //
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24 // The Initial Developer of the Original Code is Red Hat.
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25 // Portions created by Red Hat are
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26 // Copyright (C) 1998, 1999, 2000 Red Hat, Inc.
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27 // All Rights Reserved.
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28 // -------------------------------------------
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29 //
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30 //####COPYRIGHTEND####
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31 //=================================================================
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32 //#####DESCRIPTIONBEGIN####
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33 //
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34 // Author(s): jlarmour
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35 // Contributors:
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36 // Date: 2000-04-30
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37 // Description: Contains testcode to stress-test C library malloc(),
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38 // calloc() and free() functions
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39 //
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40 //
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41 //####DESCRIPTIONEND####
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42
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43 // INCLUDES
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44
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45 #include <pkgconf/system.h> // Overall system configuration
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46 #include <pkgconf/memalloc.h> // config header so we can know size of malloc pool
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47 #ifdef CYGPKG_ISOINFRA
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48 # include <pkgconf/isoinfra.h>
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49 # include <stdlib.h>
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50 #endif
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51
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52 #include <cyg/infra/testcase.h>
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53
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54 #if !defined(CYGPKG_ISOINFRA)
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55 # define NA_MSG "Requires isoinfra package"
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56 #elif !CYGINT_ISO_MAIN_STARTUP
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57 # define NA_MSG "Requires main() to be called"
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58 #elif !CYGINT_ISO_MALLOC
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59 # define NA_MSG "Requires malloc"
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60 #elif !CYGINT_ISO_MALLINFO
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61 # define NA_MSG "Requires mallinfo"
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62 #endif
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63
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64 #ifdef NA_MSG
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65 void
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66 cyg_start()
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67 {
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68 CYG_TEST_INIT();
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69 CYG_TEST_NA( NA_MSG );
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70 CYG_TEST_FINISH("Done");
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71 }
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72 #else
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73
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74 // CONSTANTS
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75
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76 #define NUM_ITERATIONS 1000
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77
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78 // GLOBALS
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79
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80 static int problem=0;
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81
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82 // FUNCTIONS
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83
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84 extern int
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85 cyg_memalloc_maxalloc( void );
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86
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87 static void *
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88 safe_malloc( size_t size )
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89 {
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90 void *ptr;
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91
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92 ptr=malloc(size);
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93
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94 if (ptr==NULL)
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95 {
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96 CYG_TEST_FAIL( "malloc returned NULL! "
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97 "Perhaps the allocator doesn't coalesce?" );
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98 problem++;
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99 } // if
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100
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101 return ptr;
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102 } // safe_malloc()
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103
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104
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105 static void *
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106 safe_calloc( size_t size )
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107 {
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108 void *ptr;
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109 int i;
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110
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111 ptr=calloc(size,1);
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112
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113 if (ptr==NULL)
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114 {
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115 CYG_TEST_FAIL( "calloc returned NULL! "
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116 "Perhaps the allocator doesn't coalesce" );
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117 problem++;
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118 } // if
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119 else
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120 {
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121 for (i=0; i < size; i++)
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122 {
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123 if (((char *)ptr)[i] != 0)
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124 {
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125 CYG_TEST_FAIL("calloc didn't clear data completely");
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126 problem++;
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127 return ptr;
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128 } // if
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129 } // for
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130 } // else
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131
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132 return ptr;
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133 } // safe_calloc()
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134
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135
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136 static void
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137 fill_with_data( char *buf, int size )
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138 {
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139 int i;
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140
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141 for (i=0; i < size; i++)
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142 buf[i] = 'f';
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143
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144 for (i=0; i < size; i++)
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145 if (buf[i] != 'f')
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146 {
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147 CYG_TEST_FAIL( "data written to buffer does not compare "
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148 "correctly! #1" );
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149 problem++;
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150 return;
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151 } // if
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152
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153
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154 for (i=0; i < size; i++)
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155 buf[i] = 'z';
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156
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157 for (i=0; i < size; i++)
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158 if (buf[i] != 'z')
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159 {
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160 CYG_TEST_FAIL( "data written to buffer does not compare "
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161 "correctly! #2" );
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162 problem++;
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163 return;
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164 } // if
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165
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166 } // fill_with_data()
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167
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168
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169 int
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170 main( int argc, char *argv[] )
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171 {
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172 char *str1, *str2, *str3;
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173 int j;
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174 int poolmax;
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175
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176 CYG_TEST_INIT();
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177
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178 CYG_TEST_INFO("Starting stress tests from testcase " __FILE__ " for C "
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179 "library malloc(), calloc() and free() functions");
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180
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181 poolmax = mallinfo().maxfree;
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182
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183 if ( poolmax <= 0 ) {
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184 CYG_TEST_FAIL_FINISH( "Can't determine allocation size to use" );
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185 }
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186
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187 if ( poolmax < 300 )
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188 {
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189 CYG_TEST_FAIL_FINISH("This testcase cannot safely be used with a "
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190 "memory pool for malloc less than 300 bytes");
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191 } // if
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192
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193
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194 for ( j=1; j < NUM_ITERATIONS; j++)
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195 {
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196 // if ((j % 100) == 0)
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197 // CYG_TEST_STILL_ALIVE( j, "Multiple mallocs and frees continuing" );
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198
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199
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200 str1 = (char *)safe_malloc(50);
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201 fill_with_data( str1, 50 );
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202 str2 = (char *)safe_calloc(11);
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203 fill_with_data( str2, 11 );
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204 str3 = (char *)safe_malloc(32);
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205 fill_with_data( str3, 32 );
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206
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207 free(str2);
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208 free(str1);
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209
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210 str2 = (char *)safe_calloc(11);
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211 fill_with_data( str2, 11 );
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212 free(str2);
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213
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214 str1 = (char *)safe_calloc(50);
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215 fill_with_data( str1, 50 );
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216 free(str3);
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217
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218 str3 = (char *)safe_malloc(32);
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219 fill_with_data( str3, 32 );
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220 free(str1);
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221
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222 str2 = (char *)safe_calloc(11);
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223 fill_with_data( str2, 11 );
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224 str1 = (char *)safe_malloc(50);
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225 fill_with_data( str1, 50 );
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226
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227 free(str3);
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228 free(str1);
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229 free(str2);
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230
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231 if (problem != 0)
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232 break;
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233 } // for
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234
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235 // Did it completely successfully?
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236 if (j==NUM_ITERATIONS)
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237 CYG_TEST_PASS("Stress test completed successfully");
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238
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239 CYG_TEST_FINISH("Finished stress tests from testcase " __FILE__ " for C "
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240 "library malloc(), calloc() and free() functions");
126
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241
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242 return 0;
115
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243 } // main()
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244
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245 #endif // ifndef NA_MSG
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246
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247 // EOF malloc2.c