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annotate packages/services/memalloc/common/current/tests/malloc2.c @ 208:e0c0827131d1 ecos

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Merge from eCos master repository on 2002-05-20-20:11:54-BST
author jlarmour
date Mon, 20 May 2002 22:19:26 +0000
parents 0d2b193a635f
children d2c90368aeef
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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 //=================================================================
208
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8 //####ECOSGPLCOPYRIGHTBEGIN####
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9 // -------------------------------------------
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10 // This file is part of eCos, the Embedded Configurable Operating System.
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11 // Copyright (C) 1998, 1999, 2000, 2001, 2002 Red Hat, Inc.
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12 //
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13 // eCos is free software; you can redistribute it and/or modify it under
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14 // the terms of the GNU General Public License as published by the Free
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15 // Software Foundation; either version 2 or (at your option) any later version.
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16 //
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17 // eCos is distributed in the hope that it will be useful, but WITHOUT ANY
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18 // WARRANTY; without even the implied warranty of MERCHANTABILITY or
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19 // FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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20 // for more details.
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21 //
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22 // You should have received a copy of the GNU General Public License along
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23 // with eCos; if not, write to the Free Software Foundation, Inc.,
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24 // 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
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25 //
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26 // As a special exception, if other files instantiate templates or use macros
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27 // or inline functions from this file, or you compile this file and link it
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28 // with other works to produce a work based on this file, this file does not
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29 // by itself cause the resulting work to be covered by the GNU General Public
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30 // License. However the source code for this file must still be made available
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31 // in accordance with section (3) of the GNU General Public License.
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32 //
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33 // This exception does not invalidate any other reasons why a work based on
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34 // this file might be covered by the GNU General Public License.
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35 //
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36 // Alternative licenses for eCos may be arranged by contacting Red Hat, Inc.
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37 // at http://sources.redhat.com/ecos/ecos-license
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38 // -------------------------------------------
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39 //####ECOSGPLCOPYRIGHTEND####
115
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40 //=================================================================
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41 //#####DESCRIPTIONBEGIN####
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42 //
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43 // Author(s): jlarmour
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44 // Contributors:
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45 // Date: 2000-04-30
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46 // Description: Contains testcode to stress-test C library malloc(),
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47 // calloc() and free() functions
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48 //
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49 //
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50 //####DESCRIPTIONEND####
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51
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52 // INCLUDES
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53
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54 #include <pkgconf/system.h> // Overall system configuration
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55 #include <pkgconf/memalloc.h> // config header so we can know size of malloc pool
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56 #ifdef CYGPKG_ISOINFRA
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57 # include <pkgconf/isoinfra.h>
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58 # include <stdlib.h>
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59 #endif
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60
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61 #include <cyg/infra/testcase.h>
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62
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63 #if !defined(CYGPKG_ISOINFRA)
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64 # define NA_MSG "Requires isoinfra package"
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65 #elif !CYGINT_ISO_MAIN_STARTUP
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66 # define NA_MSG "Requires main() to be called"
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67 #elif !CYGINT_ISO_MALLOC
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68 # define NA_MSG "Requires malloc"
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69 #elif !CYGINT_ISO_MALLINFO
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70 # define NA_MSG "Requires mallinfo"
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71 #endif
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72
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73 #ifdef NA_MSG
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74 void
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75 cyg_start(void)
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76 {
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77 CYG_TEST_INIT();
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78 CYG_TEST_NA( NA_MSG );
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79 CYG_TEST_FINISH("Done");
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80 }
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81 #else
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82
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83 // CONSTANTS
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84
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85 #define NUM_ITERATIONS 1000
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86
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87 // GLOBALS
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88
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89 static int problem=0;
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90
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91 // FUNCTIONS
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92
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93 extern int
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94 cyg_memalloc_maxalloc( void );
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95
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96 static void *
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97 safe_malloc( size_t size )
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98 {
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99 void *ptr;
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100
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101 ptr=malloc(size);
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102
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103 if (ptr==NULL)
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104 {
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105 CYG_TEST_FAIL( "malloc returned NULL! "
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106 "Perhaps the allocator doesn't coalesce?" );
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107 problem++;
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108 } // if
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109
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110 return ptr;
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111 } // safe_malloc()
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112
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113
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114 static void *
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115 safe_calloc( size_t size )
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116 {
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117 void *ptr;
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118 int i;
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119
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120 ptr=calloc(size,1);
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121
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122 if (ptr==NULL)
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123 {
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124 CYG_TEST_FAIL( "calloc returned NULL! "
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125 "Perhaps the allocator doesn't coalesce" );
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126 problem++;
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127 } // if
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128 else
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129 {
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130 for (i=0; i < size; i++)
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131 {
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132 if (((char *)ptr)[i] != 0)
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133 {
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134 CYG_TEST_FAIL("calloc didn't clear data completely");
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135 problem++;
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136 return ptr;
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137 } // if
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138 } // for
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139 } // else
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140
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141 return ptr;
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142 } // safe_calloc()
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143
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144
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145 static void
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146 fill_with_data( char *buf, int size )
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147 {
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148 int i;
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149
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150 for (i=0; i < size; i++)
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151 buf[i] = 'f';
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152
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153 for (i=0; i < size; i++)
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154 if (buf[i] != 'f')
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155 {
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156 CYG_TEST_FAIL( "data written to buffer does not compare "
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157 "correctly! #1" );
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158 problem++;
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159 return;
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160 } // if
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161
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162
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163 for (i=0; i < size; i++)
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164 buf[i] = 'z';
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165
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166 for (i=0; i < size; i++)
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167 if (buf[i] != 'z')
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168 {
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169 CYG_TEST_FAIL( "data written to buffer does not compare "
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170 "correctly! #2" );
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171 problem++;
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172 return;
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173 } // if
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174
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175 } // fill_with_data()
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176
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177
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178 int
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179 main( int argc, char *argv[] )
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180 {
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181 char *str1, *str2, *str3;
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182 int j;
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183 int poolmax;
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184
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185 CYG_TEST_INIT();
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186
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187 CYG_TEST_INFO("Starting stress tests from testcase " __FILE__ " for C "
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188 "library malloc(), calloc() and free() functions");
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189
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190 poolmax = mallinfo().maxfree;
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191
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192 if ( poolmax <= 0 ) {
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193 CYG_TEST_FAIL_FINISH( "Can't determine allocation size to use" );
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194 }
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195
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196 if ( poolmax < 300 )
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197 {
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198 CYG_TEST_FAIL_FINISH("This testcase cannot safely be used with a "
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199 "memory pool for malloc less than 300 bytes");
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200 } // if
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201
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202
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203 for ( j=1; j < NUM_ITERATIONS; j++)
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204 {
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205 // if ((j % 100) == 0)
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206 // CYG_TEST_STILL_ALIVE( j, "Multiple mallocs and frees continuing" );
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207
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208
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209 str1 = (char *)safe_malloc(50);
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210 fill_with_data( str1, 50 );
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211 str2 = (char *)safe_calloc(11);
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212 fill_with_data( str2, 11 );
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213 str3 = (char *)safe_malloc(32);
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214 fill_with_data( str3, 32 );
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215
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216 free(str2);
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217 free(str1);
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218
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219 str2 = (char *)safe_calloc(11);
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220 fill_with_data( str2, 11 );
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221 free(str2);
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222
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223 str1 = (char *)safe_calloc(50);
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224 fill_with_data( str1, 50 );
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225 free(str3);
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226
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227 str3 = (char *)safe_malloc(32);
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228 fill_with_data( str3, 32 );
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229 free(str1);
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230
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231 str2 = (char *)safe_calloc(11);
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232 fill_with_data( str2, 11 );
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233 str1 = (char *)safe_malloc(50);
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234 fill_with_data( str1, 50 );
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235
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236 free(str3);
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237 free(str1);
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238 free(str2);
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239
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240 if (problem != 0)
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241 break;
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242 } // for
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243
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244 // Did it completely successfully?
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245 if (j==NUM_ITERATIONS)
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246 CYG_TEST_PASS("Stress test completed successfully");
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247
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248 CYG_TEST_FINISH("Finished stress tests from testcase " __FILE__ " for C "
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249 "library malloc(), calloc() and free() functions");
126
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250
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251 return 0;
115
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252 } // main()
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253
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254 #endif // ifndef NA_MSG
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255
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256 // EOF malloc2.c