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/*
* Copyright (C) 2004, 2007 Internet Systems Consortium, Inc. ("ISC")
* Copyright (C) 1999-2001 Internet Software Consortium.
*
* Permission to use, copy, modify, and/or distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES WITH
* REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
* AND FITNESS. IN NO EVENT SHALL ISC BE LIABLE FOR ANY SPECIAL, DIRECT,
* INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
* LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE
* OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
* PERFORMANCE OF THIS SOFTWARE.
*/
/* $Id: t_mem.c,v 1.13 2007/06/19 23:47:00 tbox Exp $ */
#include <config.h>
#include <isc/mem.h>
#include <tests/t_api.h>
/*
* Adapted from the original mempool_test.c program.
*/
isc_mem_t *mctx;
#define MP1_FREEMAX 10
#define MP1_FILLCNT 10
#define MP1_MAXALLOC 30
#define MP2_FREEMAX 25
#define MP2_FILLCNT 25
static int
memtest(void) {
int nfails;
void *items1[50];
void *items2[50];
void *tmp;
isc_mempool_t *mp1, *mp2;
isc_result_t isc_result;
unsigned int i, j;
int rval;
nfails = 0;
mctx = NULL;
isc_result = isc_mem_create(0, 0, &mctx);
if (isc_result != ISC_R_SUCCESS) {
t_info("isc_mem_create failed %s\n",
isc_result_totext(isc_result));
++nfails;
return(nfails);
}
mp1 = NULL;
isc_result = isc_mempool_create(mctx, 24, &mp1);
if (isc_result != ISC_R_SUCCESS) {
t_info("isc_mempool_create failed %s\n",
isc_result_totext(isc_result));
++nfails;
return(nfails);
}
mp2 = NULL;
isc_result = isc_mempool_create(mctx, 31, &mp2);
if (isc_result != ISC_R_SUCCESS) {
t_info("isc_mempool_create failed %s\n",
isc_result_totext(isc_result));
++nfails;
return(nfails);
}
if (T_debug)
isc_mem_stats(mctx, stderr);
t_info("setting freemax to %d\n", MP1_FREEMAX);
isc_mempool_setfreemax(mp1, MP1_FREEMAX);
t_info("setting fillcount to %d\n", MP1_FILLCNT);
isc_mempool_setfillcount(mp1, MP1_FILLCNT);
t_info("setting maxalloc to %d\n", MP1_MAXALLOC);
isc_mempool_setmaxalloc(mp1, MP1_MAXALLOC);
/*
* Allocate MP1_MAXALLOC items from the pool. This is our max.
*/
for (i = 0; i < MP1_MAXALLOC; i++) {
items1[i] = isc_mempool_get(mp1);
if (items1[i] == NULL) {
t_info("isc_mempool_get unexpectedly failed\n");
++nfails;
}
}
/*
* Try to allocate one more. This should fail.
*/
tmp = isc_mempool_get(mp1);
if (tmp != NULL) {
t_info("isc_mempool_get unexpectedly succeeded\n");
++nfails;
}
/*
* Free the first 11 items. Verify that there are 10 free items on
* the free list (which is our max).
*/
for (i = 0; i < 11; i++) {
isc_mempool_put(mp1, items1[i]);
items1[i] = NULL;
}
rval = isc_mempool_getfreecount(mp1);
if (rval != 10) {
t_info("isc_mempool_getfreecount returned %d, expected %d\n",
rval, MP1_FREEMAX);
++nfails;
}
rval = isc_mempool_getallocated(mp1);
if (rval != 19) {
t_info("isc_mempool_getallocated returned %d, expected %d\n",
rval, MP1_MAXALLOC - 11);
++nfails;
}
if (T_debug)
isc_mem_stats(mctx, stderr);
/*
* Now, beat up on mp2 for a while. Allocate 50 items, then free
* them, then allocate 50 more, etc.
*/
t_info("setting freemax to %d\n", MP2_FREEMAX);
isc_mempool_setfreemax(mp2, 25);
t_info("setting fillcount to %d\n", MP2_FILLCNT);
isc_mempool_setfillcount(mp2, 25);
t_info("exercising the memory pool\n");
for (j = 0; j < 500000; j++) {
for (i = 0; i < 50; i++) {
items2[i] = isc_mempool_get(mp2);
if (items2[i] == NULL) {
t_info("items2[%d] is unexpectedly null\n", i);
++nfails;
}
}
for (i = 0; i < 50; i++) {
isc_mempool_put(mp2, items2[i]);
items2[i] = NULL;
}
if (j % 50000 == 0)
t_info("...\n");
}
/*
* Free all the other items and blow away this pool.
*/
for (i = 11; i < MP1_MAXALLOC; i++) {
isc_mempool_put(mp1, items1[i]);
items1[i] = NULL;
}
isc_mempool_destroy(&mp1);
if (T_debug)
isc_mem_stats(mctx, stderr);
isc_mempool_destroy(&mp2);
if (T_debug)
isc_mem_stats(mctx, stderr);
isc_mem_destroy(&mctx);
return(0);
}
static const char *a1 =
"the memory module supports the creation of memory contexts "
"and the management of memory pools.";
static void
t1(void) {
int rval;
int result;
t_assert("mem", 1, T_REQUIRED, a1);
rval = memtest();
if (rval == 0)
result = T_PASS;
else
result = T_FAIL;
t_result(result);
}
testspec_t T_testlist[] = {
{ t1, "basic memory subsystem" },
{ NULL, NULL }
};
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