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annotate packages/services/memalloc/common/current/tests/malloc4.cxx @ 115:6ed91473a1cd ecos-sw-2000-08-21

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Merge from eCos master repository on 2000-08-21-22:40:54-BST
author jlarmour
date Fri, 25 Aug 2000 17:32:38 +0000
parents
children eb9fd8c04db3
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1 //=================================================================
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2 //
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3 // malloc4.cxx
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4 //
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5 // Stress test malloc(), calloc(), realloc() 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: 2000-05-30
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37 // Description: Contains a rigorous multithreaded test for malloc(),
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38 // calloc(), realloc() 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>
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46 #include <pkgconf/memalloc.h> // config header
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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 #ifdef CYGPKG_KERNEL
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52 # include <pkgconf/kernel.h>
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53 # include <cyg/kernel/thread.hxx>
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54 # include <cyg/kernel/thread.inl>
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55 # include <cyg/kernel/sched.hxx>
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56 # include <cyg/kernel/sched.inl>
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57 #endif
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58 #include <cyg/infra/testcase.h>
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59
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60 #if !defined(CYGPKG_KERNEL)
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61 # define NA_MSG "Requires kernel"
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62 #elif !defined(CYGFUN_KERNEL_THREADS_TIMER)
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63 # define NA_MSG "Requires thread timers"
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64 #elif !defined(CYGPKG_ISOINFRA)
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65 # define NA_MSG "Requires isoinfra package"
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66 #elif !CYGINT_ISO_MALLOC
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67 # define NA_MSG "Requires malloc"
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68 #elif !CYGINT_ISO_MALLINFO
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69 # define NA_MSG "Requires mallinfo"
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70 #elif !CYGINT_ISO_RAND
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71 # define NA_MSG "Requires rand"
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72 #elif defined(CYGIMP_MEMALLOC_MALLOC_DLMALLOC) && \
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73 !defined(CYGIMP_MEMALLOC_ALLOCATOR_DLMALLOC_THREADAWARE)
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74 # define NA_MSG "Requires thread-safe dlmalloc"
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75 #elif defined(CYGIMP_MEMALLOC_MALLOC_VARIABLE_SIMPLE) && \
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76 !defined(CYGSEM_MEMALLOC_ALLOCATOR_VARIABLE_THREADAWARE)
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77 # define NA_MSG "Requires thread-safe variable block allocator"
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78 #endif
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79
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80 #ifdef NA_MSG
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81
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82 externC void
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83 cyg_start()
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84 {
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85 CYG_TEST_INIT();
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86 CYG_TEST_NA( NA_MSG );
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87 CYG_TEST_FINISH("Done");
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88 }
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89 #else
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90
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91 #define NTHREADS 4
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92 #include "testaux.hxx"
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93
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94 #include <cyg/infra/diag.h>
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95
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96 volatile int gonow = 0;
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97 volatile int stopnow = 0;
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98
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99 struct ptr {
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100 volatile char *p;
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101 volatile size_t size;
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102 volatile unsigned char busy;
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103 };
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104
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105 #define STRINGIFY1( _x_ ) #_x_
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106 #define STRINGIFY( _x_ ) STRINGIFY1( _x_ )
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107
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108 #define NUM_PTRS 100
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109 #define WAITFORMEMDELAYMAX (cyg_test_is_simulator ? 1 : 3)
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110 #define LOOPDELAYMAX (cyg_test_is_simulator ? 1 : 3)
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111 #define ITERATIONS (cyg_test_is_simulator ? 10 : 200)
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112 #define OUTPUTINTERVAL (cyg_test_is_simulator ? 1 : 10)
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113
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114 int iterations = ITERATIONS;
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115
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116 static struct ptr ptrs[ NUM_PTRS ];
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117
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118 static __inline__ int
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119 myrand(int limit, unsigned int *seed)
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120 {
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121 int r;
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122 double l=(double)limit;
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123 r=(int)( l*rand_r(seed) / RAND_MAX );
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124 return r;
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125 }
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126
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127 size_t memsize;
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128
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129 static void
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130 fill_with_data( struct ptr *p )
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131 {
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132 unsigned int i, j;
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133 for (i=0; i < (p->size/4); i++)
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134 ((unsigned int *)p->p)[i] = (unsigned int)p;
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135 for ( j=i*4; j < p->size ; j++ )
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136 p->p[j] = ((char *)p)[j-i*4];
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137 }
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138
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139 static void
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140 check_data( struct ptr *p )
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141 {
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142 unsigned int i, j;
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143 for (i=0; i < (p->size/4); i++)
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144 CYG_TEST_CHECK( ((unsigned int *)p->p)[i] == (unsigned int)p,
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145 "Data didn't compare correctly");
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146 for ( j=i*4; j < p->size ; j++ )
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147 CYG_TEST_CHECK( p->p[j] == ((char *)p)[j-i*4],
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148 "Data didn't compare correctly");
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149 }
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150
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151 static void
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152 check_zeroes( struct ptr *p )
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153 {
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154 unsigned int i, j;
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155 for (i=0; i < (p->size/4); i++)
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156 CYG_TEST_CHECK( ((int *)p->p)[i] == 0,
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157 "Zeroed data didn't compare correctly");
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158 for ( j=i*4; j < p->size ; j++ )
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159 CYG_TEST_CHECK( p->p[j] == 0,
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160 "Zeroed data didn't compare correctly");
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161 }
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162
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163
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164 static void
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165 thrmalloc( CYG_ADDRWORD data )
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166 {
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167 int r, i;
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168 void *mem;
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169 unsigned int seed;
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170
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171 while (!gonow)
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172 Cyg_Thread::self()->delay(1);
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173
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174 while (!stopnow) {
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175 r = myrand( NUM_PTRS-1, &seed );
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176
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177 for (i=r+1; ; i++) {
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178 Cyg_Scheduler::lock();
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179 if (i == NUM_PTRS)
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180 i=0;
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181 if (!ptrs[i].busy && (ptrs[i].p == NULL) )
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182 break;
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183 Cyg_Scheduler::unlock();
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184 if ( i==r ) {
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185 Cyg_Thread::self()->delay( myrand(WAITFORMEMDELAYMAX, &seed) );
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186 }
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187 }
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188 ptrs[i].busy = 1;
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189 Cyg_Scheduler::unlock();
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190 r = myrand(memsize, &seed);
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191 mem = malloc(r);
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192 ptrs[i].p = (char *)mem;
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193 ptrs[i].size = r;
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194 if ( NULL != mem ) {
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195 // diag_printf("malloc=%08x size=%d\n", mem, r);
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196 fill_with_data( &ptrs[i] );
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197 }
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198 ptrs[i].busy = 0;
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199 Cyg_Thread::self()->delay( myrand(LOOPDELAYMAX, &seed) );
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200 }
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201 }
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202
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203 static void
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204 thrcalloc( CYG_ADDRWORD data )
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205 {
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206 int r, i;
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207 void *mem;
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208 unsigned int seed;
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209
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210 while (!gonow)
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211 Cyg_Thread::self()->delay(1);
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212
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213 while (!stopnow) {
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214 r = myrand( NUM_PTRS-1, &seed );
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215
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216 for (i=r+1; ; i++) {
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217 Cyg_Scheduler::lock();
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218 if (i == NUM_PTRS)
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219 i=0;
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220 if (!ptrs[i].busy && (ptrs[i].p == NULL) )
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221 break;
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222 Cyg_Scheduler::unlock();
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223 if ( i==r ) {
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224 Cyg_Thread::self()->delay( myrand(WAITFORMEMDELAYMAX, &seed) );
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225 }
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226 }
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227 ptrs[i].busy = 1;
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228 Cyg_Scheduler::unlock();
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229 r = myrand(memsize, &seed);
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230 mem = calloc( 1, r );
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231 ptrs[i].p = (char *)mem;
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232 ptrs[i].size = r;
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233 if ( NULL != mem ) {
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234 // diag_printf("calloc=%08x size=%d\n", mem, r);
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235 check_zeroes( &ptrs[i] );
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236 fill_with_data( &ptrs[i] );
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237 }
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238 ptrs[i].busy = 0;
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239 Cyg_Thread::self()->delay( myrand(LOOPDELAYMAX, &seed) );
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240 }
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241 }
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242
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243 static void
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244 thrrealloc( CYG_ADDRWORD data )
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245 {
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246 int r, i;
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247 void *mem;
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248 unsigned int seed;
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249
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250 while (!gonow)
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251 Cyg_Thread::self()->delay(1);
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252
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253 while (!stopnow) {
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254 r = myrand( NUM_PTRS-1, &seed );
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255
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256 for (i=r+1; ; i++) {
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257 Cyg_Scheduler::lock();
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258 if (i == NUM_PTRS)
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259 i=0;
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260 if (!ptrs[i].busy && (ptrs[i].p != NULL) )
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261 break;
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262 Cyg_Scheduler::unlock();
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263 if ( i==r ) {
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264 Cyg_Thread::self()->delay( myrand(WAITFORMEMDELAYMAX, &seed) );
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265 }
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266 }
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267 ptrs[i].busy = 1;
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268 Cyg_Scheduler::unlock();
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269 check_data( &ptrs[i] );
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270 r = myrand(memsize, &seed);
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271 mem = realloc( (void *)ptrs[i].p, r );
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272 if ( NULL != mem ) {
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273 // diag_printf("realloc=%08x oldsize=%d newsize=%d\n", mem, ptrs[i].size, r);
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274 ptrs[i].size = r;
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275 ptrs[i].p = (char *)mem;
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276 fill_with_data( &ptrs[i] );
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277 }
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278 ptrs[i].busy = 0;
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279 Cyg_Thread::self()->delay( myrand(LOOPDELAYMAX, &seed) );
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280 }
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281 }
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282
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283 static void
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284 thrfree( CYG_ADDRWORD data )
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285 {
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286 int r, i;
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287 int iter = 0;
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288 struct mallinfo minfo;
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289 unsigned int seed;
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290
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291 minfo = mallinfo();
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292 memsize = (unsigned long) minfo.maxfree;
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293 diag_printf("INFO:<Iteration 0, arenasize=%d, space free=%d, maxfree=%d>\n",
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294 minfo.arena, minfo.fordblks, minfo.maxfree );
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295 gonow++;
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296
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297 Cyg_Thread::self()->delay(1);
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298
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299 while (1) {
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300 if ( (iter > 0) && (0 == (iter % OUTPUTINTERVAL)) ) {
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301 minfo = mallinfo();
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302 diag_printf("INFO:<Iteration %d, arenasize=%d, "
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303 "space free=%d, maxfree=%d>\n",
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304 iter, minfo.arena, minfo.fordblks, minfo.maxfree );
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305 }
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306
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307 if ( iterations == iter++ )
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308 stopnow++;
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309
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310 r = myrand( NUM_PTRS-1, &seed );
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311
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312 for (i=r+1; ; i++) {
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313 Cyg_Scheduler::lock();
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314 if (i >= NUM_PTRS)
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315 i=0;
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316 if (!ptrs[i].busy && (ptrs[i].p != NULL) )
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317 break;
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318 Cyg_Scheduler::unlock();
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319 if ( i==r ) {
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320 if ( stopnow ) {
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321 // we may have gone round all the ptrs even though one
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322 // or more of them was busy, so check again just for that
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323 int j;
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324 for (j=0; j<NUM_PTRS; j++)
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325 if (ptrs[j].busy)
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326 break;
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327 if ( j<NUM_PTRS )
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328 continue;
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329 struct mallinfo minfo;
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330
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331 minfo = mallinfo();
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332 diag_printf("INFO:<Iteration %d, arenasize=%d, "
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333 "space free=%d, maxfree=%d>\n",
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334 iter, minfo.arena, minfo.fordblks,
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335 minfo.maxfree );
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336 CYG_TEST_PASS_FINISH("malloc4 test completed successfully");
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337 } else {
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338 Cyg_Thread::self()->delay(
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339 myrand(WAITFORMEMDELAYMAX, &seed) );
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340 }
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341 }
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342 }
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343 ptrs[i].busy = 1;
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344 Cyg_Scheduler::unlock();
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345 check_data( &ptrs[i] );
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346 // diag_printf("about to free %08x\n", ptrs[i].p);
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347 free( (void *)ptrs[i].p );
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348 ptrs[i].p = NULL;
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349 ptrs[i].busy = 0;
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350 Cyg_Thread::self()->delay( myrand(LOOPDELAYMAX, &seed) );
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351 }
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352 }
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353
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354
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355 externC void
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356 cyg_start()
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357 {
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358 CYG_TEST_INIT();
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359 CYG_TEST_INFO("Starting malloc4 test");
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360
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361 new_thread(thrmalloc, 0);
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362 new_thread(thrcalloc, 1);
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363 new_thread(thrrealloc, 2);
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364 new_thread(thrfree, 3);
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365
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366 Cyg_Scheduler::start();
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367
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368 CYG_TEST_FAIL_FINISH("Not reached");
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369 } // main()
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370
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371 #endif // !NA_MSG
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372
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373 // EOF malloc4.cxx