memtest.c

   1 /*
   2  * Copyright (c) 2004 Teodor Sigaev <teodor@sigaev.ru>
   3  * All rights reserved.
   4  *
   5  * Redistribution and use in source and binary forms, with or without
   6  * modification, are permitted provided that the following conditions
   7  * are met:
   8  * 1. Redistributions of source code must retain the above copyright
   9  *      notice, this list of conditions and the following disclaimer.
  10  * 2. Redistributions in binary form must reproduce the above copyright
  11  *      notice, this list of conditions and the following disclaimer in the
  12  *      documentation and/or other materials provided with the distribution.
  13  * 3. Neither the name of the author nor the names of any co-contributors
  14  *      may be used to endorse or promote products derived from this software
  15  *      without specific prior written permission.
  16  *
  17  * THIS SOFTWARE IS PROVIDED BY CONTRIBUTORS ``AS IS'' AND ANY EXPRESS
  18  * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
  19  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  20  * ARE DISCLAIMED. IN NO EVENT SHALL CONTRIBUTORS BE LIABLE FOR ANY
  21  * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  22  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
  23  * GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  24  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
  25  * IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
  26  * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
  27  * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  28  */
  29
  30 #include <stdio.h>
  31 #include <string.h>
  32 #include <stdlib.h>
  33 #include <unistd.h>
  34
  35
  36 #include "tmalloc.h"
  37 #include "tlog.h"
  38 #include "tools.h"
  39
  40 static void
  41 usage() {
  42         puts(
  43         "Usage:\n"
  44         "memtest [-c COUNT [-t [-D]] [-s MAXSIZE] [-C COUNTCOUNT]]\n"
  45         );
  46         exit(1);
  47 }
  48
  49
  50 extern char *optarg;
  51 extern int opterr;
  52
  53 int
  54 main(int argn, char *argv[]) {
  55         MemoryContext   *base, *child;
  56         int i, SZ=32;
  57         int count=0, iscntx=0, flags=0,  COUNT=1;
  58
  59         opentlog(TL_OPEN_STDERR,TL_DEBUG, NULL);
  60         opterr=0;
  61
  62         while((i=getopt(argn,argv,"s:Dc:htC:")) != EOF) {
  63                 switch(i) {
  64                         case 's':
  65                                 SZ=atoi(optarg);
  66                                 break;
  67                         case 'C':
  68                                 COUNT=atoi(optarg);
  69                                 break;
  70                         case 'c':
  71                                 count=atoi(optarg);
  72                                 break;
  73                         case 'D':
  74                                 flags=MC_DEBUG;
  75                                 break;
  76                         case 't':
  77                                 iscntx=1;
  78                                 break;
  79                         case 'h':
  80                         default:
  81                                 usage();
  82                                 break;
  83                 }
  84         }
  85
  86         if ( count == 0 ) {
  87                 char *ptr, *ptr1;
  88
  89                 /* test correctness */
  90                 base = allocMemoryContext(NULL, flags);
  91                 child = allocMemoryContext(base, flags);
  92
  93                 ptr = mcalloc(base, 30);
  94                 for(i=0;i<26;i++)
  95                         ptr[i] = 97+i;
  96                 ptr[i]='\0';
  97
  98                 ptr1 = mcstrdup(base, ptr);
  99                 strupper(ptr1);
 100                 printf("lc:%s uc:%s free:%d\n", ptr, ptr1, base->chunk->freesize);
 101
 102                 mcfree(ptr1);
 103                 printf("lc:%s free:%d\n", ptr, base->chunk->freesize);
 104
 105                 ptr1 = mcstrdup(base, ptr);
 106                 mcfree(ptr);
 107                 strupper(ptr1);
 108                 printf("uc:%s free:%d\n", ptr1, base->chunk->freesize);
 109
 110                 ptr= mcstrdup(base, ptr1);
 111                 strlower(ptr);
 112                 ptr1 =mcrealloc(ptr1, 60);
 113                 strcat(ptr1, ptr);
 114                 printf("mixed:%s free:%d\n", ptr1, base->chunk->freesize);
 115
 116                 ptr = mcrealloc(ptr1, 59);
 117                 tassert( ptr==ptr1 );
 118                 printf("mixed:%s free:%d\n", ptr, base->chunk->freesize);
 119
 120                 ptr = mcrealloc(ptr1, 120);
 121                 tassert( ptr==ptr1 );
 122                 printf("mixed:%s free:%d\n", ptr, base->chunk->freesize);
 123
 124                 ptr1 = mcalloc(base, CNTXCHUNK);
 125                 strcpy(ptr1, ptr);
 126                 printf("mixed:%s free:%d freenew:%d\n", ptr1, base->chunk->freesize, base->chunk->next->freesize);
 127
 128                 ptr1= mcstrdup(child, ptr);
 129                 printf("mixed:%s free:%d freechild:%d\n", ptr1, base->chunk->freesize, child->chunk->freesize);
 130
 131                 freeMemoryContext(child);
 132                 printf("Child: %d\n", (int)(base->child));
 133
 134                 child = allocMemoryContext(base, flags);
 135                 freeMemoryContext(base);
 136         } else {
 137                 struct timeval begin;
 138                 char *ptr, *ptr1;
 139
 140                 srandom(1);
 141                 if ( iscntx ) {
 142                         gettimeofday(&begin, NULL);
 143                         while(COUNT-- > 0) {
 144                         base = allocMemoryContext(NULL, flags);
 145                         for(i=0;i<count;i++) {
 146                                 ptr = mcalloc(base, 1+random()%SZ );
 147                                 ptr1 = mcalloc(base, 1+random()%SZ );
 148                                 if ( !(ptr && ptr1) )
 149                                         tlog(TL_CRIT|TL_EXIT,"No memory");
 150                                 *ptr = i%256;
 151                                 *ptr1 = i%256;
 152                                 mcfree(ptr1);
 153
 154                                 ptr = mcrealloc(ptr, 1+random()%SZ );
 155                                 if ( !ptr )
 156                                         tlog(TL_CRIT|TL_EXIT,"No memory");
 157                                 *ptr = (i+1)%256;
 158
 159                                 ptr1=mcalloc(base, 1+random()%SZ );
 160                                 *ptr1 = (i+2)%256;
 161
 162                                 ptr = mcrealloc(ptr, 1+random()%SZ );
 163                                 if ( !ptr )
 164                                         tlog(TL_CRIT|TL_EXIT,"No memory");
 165                                 *ptr = (i+3)%256;
 166
 167                         }
 168                         freeMemoryContext(base);
 169                         }
 170                         printf("MC elapsed: %f sec\n", elapsedtime(&begin));
 171
 172                 } else {
 173                         char **all, **allptr;
 174                         gettimeofday(&begin, NULL);
 175                         while(COUNT-- > 0) {
 176                         allptr=all=malloc(sizeof(char*)*count*2);
 177                         if ( !all )
 178                                 tlog(TL_CRIT|TL_EXIT,"No memory");
 179                         for(i=0;i<count;i++) {
 180                                 ptr = malloc( 1+random()%SZ );
 181                                 ptr1 = malloc( 1+random()%SZ );
 182                                 if ( !(ptr && ptr1) )
 183                                         tlog(TL_CRIT|TL_EXIT,"No memory");
 184                                 *ptr = i%256;
 185                                 *ptr1 = i%256;
 186                                 free(ptr1);
 187
 188                                 ptr = realloc(ptr, 1+random()%SZ );
 189                                 if ( !ptr )
 190                                         tlog(TL_CRIT|TL_EXIT,"No memory");
 191                                 *ptr = (i+1)%256;
 192
 193                                 *allptr = ptr1=malloc( 1+random()%SZ );
 194                                 allptr++;
 195                                 *ptr1 = (i+2)%256;
 196
 197                                 *allptr = ptr = realloc(ptr, 1+random()%SZ );
 198                                 allptr++;
 199                                 if ( !ptr )
 200                                         tlog(TL_CRIT|TL_EXIT,"No memory");
 201                                 *ptr = (i+3)%256;
 202                         }
 203                         allptr=all;
 204                         while( allptr-all < count ) {
 205                                 free(*allptr);
 206                                 allptr++;
 207                         }
 208                         free(all);
 209                         }
 210                         printf("Malloc elapsed: %f sec\n", elapsedtime(&begin));
 211                 }
 212
 213         }
 214         return 0;
 215 }
 216
 217
 218