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/* print used memory
2003.03.13 H. Kino
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#define fp_bsize 1048576 /* buffer size for setvbuf */
static FILE *fp=NULL;
static char *filename=NULL;
typedef struct slist_{
char *name;
float size;
struct slist_ *next;
} slist;
static slist *top=NULL;
void PrintMemory(char *name, size_t size0, char *mode)
{
slist *now, *last;
float size;
char buf[fp_bsize]; /* setvbuf */
size=(float)size0;
/* printf("PrintMemory called, %s %d %s\n",name,size,mode); */
fflush(stdout);
if (mode) {
if (strcmp(mode,"init")==0) {
/* try opening a file */
if (filename) { free(filename); filename=NULL;}
filename = strdup(name);
fp=fopen(filename,"w");
#ifdef xt3
setvbuf(fp,buf,_IOFBF,fp_bsize); /* setvbuf */
#endif
if (fp==NULL) {
printf("PrintMemory: fail to open a file: %s\n",filename);
printf("PrintMemory: write to stdout\n");
fp=stdout;
}
else {
/* printf("PrintMemory: write to %s\n",filename); */
fclose(fp);
}
return;
}
if (strcmp(mode,"sum")==0) {
float total=0;
for (now=top; now; now=now->next ) {
total+= now->size;
}
if (fp==NULL) fp=stdout;
if (fp!=stdout) {
fp=fopen(filename,"a");
#ifdef xt3
setvbuf(fp,buf,_IOFBF,fp_bsize); /* setvbuf */
#endif
if (fp==NULL) {
fp=stdout;
}
}
fprintf(fp,"Memory: %-35s %10.2f MBytes\n","total",total);
if (fp!=stdout) {
fclose(fp);
}
return;
}
}
size /= 1024*1024;
/* find iterator */
for (last=now=top; now; now=now->next ) {
if ( strcmp(now->name,name)==0 ) {
/* found it*/
break;
}
last=now;
}
if (now) { /* found */
/* in this case, it is already written */
return;
}
else { /* not found */
if (last==NULL) { /* first time */
last=top = (slist*) malloc(sizeof(slist));
}
else { /* add this to the last */
last=last->next=(slist*) malloc(sizeof(slist));
}
last->name=strdup(name);
last->size=size;
last->next=NULL;
}
/* write it to the file */
if (fp==NULL) fp=stdout;
if (fp!=stdout) {
fp=fopen(filename,"a");
#ifdef xt3
setvbuf(fp,buf,_IOFBF,fp_bsize); /* setvbuf */
#endif
if (fp==NULL) {
fp=stdout;
}
}
fprintf(fp,"Memory: %-35s %10.2f MBytes\n",name,size);
if (fp!=stdout) {
fclose(fp);
}
}
#if 0
main()
{
/* PrintMemory("test.memory",0,"init"); */
PrintMemory("main: a",100000000,"add");
PrintMemory("main: b",100000000,"add");
PrintMemory("main: c",100000000,"add");
PrintMemory("main: d",200000000,"add");
PrintMemory("main: d",100000000,"add");
PrintMemory("main: a",500000000,"add");
PrintMemory("main: a",300000000,"add");
PrintMemory("main: f",200000000,"add");
}
#endif
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