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/*
* Copyright (c) 2011 by Hewlett-Packard Company. All rights reserved.
*
* THIS MATERIAL IS PROVIDED AS IS, WITH ABSOLUTELY NO WARRANTY EXPRESSED
* OR IMPLIED. ANY USE IS AT YOUR OWN RISK.
*
* Permission is hereby granted to use or copy this program
* for any purpose, provided the above notices are retained on all copies.
* Permission to modify the code and to distribute modified code is granted,
* provided the above notices are retained, and a notice that the code was
* modified is included with the above copyright notice.
*
*/
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
#include "gc_disclaim.h"
/* Include gc_priv.h is done after including GC public headers, so */
/* that GC_BUILD has no effect on the public prototypes. */
#include "private/gc_priv.h" /* for CLOCK_TYPE and GC_random */
#define my_assert(e) \
if (!(e)) { \
fprintf(stderr, "Assertion failure, line %d: " #e "\n", __LINE__); \
exit(-1); \
}
static int free_count = 0;
struct testobj_s {
struct testobj_s *keep_link;
int i;
};
typedef struct testobj_s *testobj_t;
void GC_CALLBACK testobj_finalize(void *obj, void *carg)
{
++*(int *)carg;
my_assert(((testobj_t)obj)->i++ == 109);
}
static const struct GC_finalizer_closure fclos = {
testobj_finalize,
&free_count
};
testobj_t testobj_new(int model)
{
testobj_t obj;
switch (model) {
case 0:
obj = GC_MALLOC(sizeof(struct testobj_s));
if (obj != NULL)
GC_REGISTER_FINALIZER_NO_ORDER(obj, testobj_finalize,
&free_count, NULL, NULL);
break;
case 1:
obj = GC_finalized_malloc(sizeof(struct testobj_s), &fclos);
break;
case 2:
obj = GC_MALLOC(sizeof(struct testobj_s));
break;
default:
exit(-1);
}
if (obj == NULL) {
fprintf(stderr, "Out of memory!\n");
exit(3);
}
my_assert(obj->i == 0 && obj->keep_link == NULL);
obj->i = 109;
return obj;
}
#define ALLOC_CNT (4*1024*1024)
#define KEEP_CNT (32*1024)
static char const *model_str[3] = {
"regular finalization",
"finalize on reclaim",
"no finalization"
};
int main(int argc, char **argv)
{
int i;
int model, model_min, model_max;
testobj_t *keep_arr;
GC_INIT();
GC_init_finalized_malloc();
if (argc == 2 && strcmp(argv[1], "--help") == 0) {
fprintf(stderr,
"Usage: %s [FINALIZATION_MODEL]\n"
"\t0 -- original finalization\n"
"\t1 -- finalization on reclaim\n"
"\t2 -- no finalization\n", argv[0]);
return 1;
}
if (argc == 2) {
model_min = model_max = atoi(argv[1]);
if (model_min < 0 || model_max > 2)
exit(2);
}
else {
model_min = 0;
model_max = 2;
}
keep_arr = GC_MALLOC(sizeof(void *) * KEEP_CNT);
if (NULL == keep_arr) {
fprintf(stderr, "Out of memory!\n");
exit(3);
}
printf("\t\t\tfin. ratio time/s time/fin.\n");
for (model = model_min; model <= model_max; ++model) {
double t = 0.0;
# ifdef CLOCK_TYPE
CLOCK_TYPE tI, tF;
GET_TIME(tI);
# endif
free_count = 0;
for (i = 0; i < ALLOC_CNT; ++i) {
int k = rand() % KEEP_CNT;
keep_arr[k] = testobj_new(model);
}
GC_gcollect();
# ifdef CLOCK_TYPE
GET_TIME(tF);
t = MS_TIME_DIFF(tF, tI)*1e-3;
# endif
if (model < 2 && free_count > 0)
printf("%20s: %12.4f %12g %12g\n", model_str[model],
free_count/(double)ALLOC_CNT, t, t/free_count);
else
printf("%20s: %12.4f %12g %12s\n",
model_str[model], 0.0, t, "N/A");
}
return 0;
}
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