+++ /dev/null
-/* ymem.c
- *
- * (C) Copyright Apr 15 1995, Edmond J. Breen.
- * ALL RIGHTS RESERVED.
- * This code may be copied for personal, non-profit use only.
- *
- */
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include "xalloc.h"
-#include "assertp.h"
-#include "global.h"
-
-char XGMARK = 0;
-
-#define freemark -1
-
-/*CUT XALLOC_struct*/
-typedef struct {
- size_t nbytes; /*sizeof allocated area*/
- void * p; /*pointer to allocated area*/
- char mark; /*memory mark: used by garbage collector*/
- char * crt_file; /*Name of file which asked to creat the memory*/
- int crt_lineno; /*Line no from which the creation call was made*/
- unsigned long alloc_num; /*allocation entry number*/
-}XALLOC;
-/*END CUT*/
-
-
-
-typedef struct {
- int dbuf_no;
- int top;
- XALLOC *dbuf;
-}memtab_t;
-
-#define MTABSZ 203
-memtab_t MTAB[MTABSZ];
-#define BNO(p) ((unsigned long)p % MTABSZ)
-#define BUFINC 10
-
-#define STDMSG ("line %d in file %s: "\
- "tot_seen %lu\n",lineno,file,(unsigned long)tot_seen);
-
-/*CUT XALLOC_array*/
-
-unsigned long EiC_tot_memory = 0L; /*total amount of memory allocated in bytes*/
-size_t EiC_tot_alloc = 0; /*total number of current memory allocations*/
-size_t tot_seen = 0; /*total number of allocations made */
-/*END CUT*/
-
-int EiC_getMemMark(unsigned long item)
-{
- /* given an item number, return its mark value */
- size_t i,k;
- for(k=0;k<MTABSZ;k++)
- for(i=0;i<MTAB[k].dbuf_no;++i)
- if(MTAB[k].dbuf[i].alloc_num == item)
- return MTAB[k].dbuf[i].mark;
- return -1;
-}
-
-void EiC_freeMemItem(unsigned long item)
-{
- size_t i,k;
- for(k=0;k<MTABSZ;k++)
- for(i=0;i<MTAB[k].dbuf_no;++i)
- if(MTAB[k].dbuf[i].alloc_num == item) {
- xfree(MTAB[k].dbuf[i].p);
- return ;
- }
-}
-
-void EiC_ydumpnonmark(char *outfile, char mark)
-{
- size_t i,k;
- for(k=0;k<MTABSZ;k++)
- for(i=0;i<MTAB[k].dbuf_no;++i)
- if(MTAB[k].dbuf[i].mark >= 0) {
- if(MTAB[k].dbuf[i].mark != mark) {
- printf("item %ld Create line %d file %s nbytes %lu\n",
- MTAB[k].dbuf[i].alloc_num,
- MTAB[k].dbuf[i].crt_lineno,
- MTAB[k].dbuf[i].crt_file,
- (unsigned long)MTAB[k].dbuf[i].nbytes);
- MTAB[k].dbuf[i].mark = MEM_LEAK;
- } else
- MTAB[k].dbuf[i].mark = 0;
- }
-}
-
-size_t EiC_xalloc_NextEntryNum(void)
-{
- return tot_seen + 1;
-}
-
-void EiC_xalloc_CleanUp(size_t bot, size_t top)
-{
- size_t i,k;
-
- for(k=0;k<MTABSZ;k++)
- for(i=0;i<MTAB[k].dbuf_no;++i)
- if(MTAB[k].dbuf[i].p)
- if(MTAB[k].dbuf[i].alloc_num >= bot &&
- MTAB[k].dbuf[i].alloc_num < top &&
- MTAB[k].dbuf[i].mark != eicstay)
- xfree(MTAB[k].dbuf[i].p);
-}
-
-
-
-void EiC_xfreemark(char mark)
-{
- size_t i,k;
-
- for(k=0;k<MTABSZ;k++)
- for(i=0;i<MTAB[k].dbuf_no;++i)
- if(MTAB[k].dbuf[i].mark == mark)
- xfree(MTAB[k].dbuf[i].p);
-}
-
-int EiC_ymark(char *file,
- int lineno, void *p, char mark)
-{
- int found;
- found = xlookup(p);
- assertp(found < 0,STDMSG);
- MTAB[BNO(p)].dbuf[found].mark = mark;
-
- return 1;
-}
-
-static int install(char *file,
- int lineno,
- void *p,
- size_t nbytes)
-{
- int bno;
- unsigned i;
- extern int EiC_memtraceON;
-
-
- bno = BNO(p);
-
- for(i=0;i<MTAB[bno].dbuf_no;++i) { /* search for empty slot */
- if(MTAB[bno].dbuf[i].p == NULL)
- break;
- }
-
- if(i >= MTAB[bno].top) {
- MTAB[bno].top += BUFINC;
- if(!MTAB[bno].dbuf)
- MTAB[bno].dbuf = (XALLOC*)(calloc)(sizeof(XALLOC),BUFINC + 1);
- else
- MTAB[bno].dbuf = (XALLOC*)realloc(MTAB[bno].dbuf,
- sizeof(XALLOC) * (MTAB[bno].top+1));
- }
-
- assertp(MTAB[bno].dbuf == NULL,("Out of Memory"));
-
- MTAB[bno].dbuf[i].p = p;
- MTAB[bno].dbuf[i].nbytes = nbytes;
- MTAB[bno].dbuf[i].mark = XGMARK;
- MTAB[bno].dbuf[i].crt_file = file;
- MTAB[bno].dbuf[i].crt_lineno = lineno;
- EiC_tot_memory += nbytes;
- EiC_tot_alloc++;
- if(i>=MTAB[bno].dbuf_no)
- MTAB[bno].dbuf_no++;
-
- MTAB[bno].dbuf[i].alloc_num = ++tot_seen;
- if(EiC_memtraceON)
- printf("%lu ",(unsigned long)tot_seen);
- return i;
-}
-
-int xlookup(void *p)
-{
- unsigned i,bno = BNO(p);
-
- for(i=0; i< MTAB[bno].dbuf_no;i++)
- if(MTAB[bno].dbuf[i].mark >= 0) {
- if(MTAB[bno].dbuf[i].p == p)
- return i;
- }
- return -1;
-}
-
-void * EiC_ymalloc(char *file, int lineno, size_t nbytes)
-{
- void * pheap;
-
- pheap = (malloc)(nbytes);
- assertp(pheap==NULL,STDMSG);
- install(file,lineno,pheap,nbytes);
-
- return pheap;
-}
-
-void * EiC_ycalloc(char *file,
- int lineno,
- size_t nelems,
- size_t elems)
-{
- void * pheap;
- pheap = EiC_ymalloc(file, lineno,nelems * elems);
- if(pheap)
- memset(pheap,0,nelems * elems);
- return pheap;
-}
-
-void * EiC_yrealloc(char *file, int lineno, void *oldp, size_t nbytes)
-{
- void *newp;
- int found, d;
-
- if(oldp != NULL) {
- found = xlookup(oldp);
- assertp(found < 0,STDMSG);
- }
-
- newp = realloc(oldp,nbytes);
-
- assertp(nbytes && newp == NULL,("line %d in file %s\n",lineno,file));
-
- if(oldp) {
- int bno = BNO(oldp);
- d = nbytes - MTAB[bno].dbuf[found].nbytes;
- if(bno != BNO(newp)) {
-
- int i;
-
- MTAB[bno].dbuf[found].p = NULL;
- MTAB[bno].dbuf[found].mark = freemark;
- i = install(file,lineno,newp,nbytes);
- /* retain creation time stamp */
- MTAB[BNO(newp)].dbuf[i].alloc_num
- = MTAB[bno].dbuf[found].alloc_num;
-
- } else {
- MTAB[bno].dbuf[found].p = newp;
- MTAB[bno].dbuf[found].nbytes = nbytes;
- MTAB[bno].dbuf[found].crt_file = file;
- MTAB[bno].dbuf[found].crt_lineno = lineno;
- }
- EiC_tot_memory += d;
- } else
- install(file,lineno,newp,nbytes);
-
-
- return newp;
-}
-
-void EiC_yfree(char *file, int lineno, void * p)
-{
- int found,bno = BNO(p);
- found = xlookup(p);
- if(found < 0) {
- /*EiC_warningerror("free non-xalloc ptr: from %s line %d", file, lineno);*/
- (free)(p);
- } else {
- EiC_tot_memory -= MTAB[bno].dbuf[found].nbytes;
- EiC_tot_alloc--;
- (free)(p);
- MTAB[bno].dbuf[found].p = NULL;
- MTAB[bno].dbuf[found].mark = freemark;
- }
-}
projects / opencv / blobdiff