freebsd-dev/contrib/sendmail/libsm/t-heap.c
2002-06-11 21:12:04 +00:00

65 lines
1.3 KiB
C

/*
* Copyright (c) 2000-2001 Sendmail, Inc. and its suppliers.
* All rights reserved.
*
* By using this file, you agree to the terms and conditions set
* forth in the LICENSE file which can be found at the top level of
* the sendmail distribution.
*/
#include <sm/gen.h>
SM_IDSTR(id, "@(#)$Id: t-heap.c,v 1.10 2001/09/11 04:04:49 gshapiro Exp $")
#include <sm/debug.h>
#include <sm/heap.h>
#include <sm/io.h>
#include <sm/test.h>
#include <sm/xtrap.h>
#if SM_HEAP_CHECK
extern SM_DEBUG_T SmHeapCheck;
# define HEAP_CHECK sm_debug_active(&SmHeapCheck, 1)
#else /* SM_HEAP_CHECK */
# define HEAP_CHECK 0
#endif /* SM_HEAP_CHECK */
int
main(argc, argv)
int argc;
char **argv;
{
void *p;
sm_test_begin(argc, argv, "test heap handling");
if (argc > 1)
sm_debug_addsettings_x(argv[1]);
p = sm_malloc(10);
SM_TEST(p != NULL);
p = sm_realloc_x(p, 20);
SM_TEST(p != NULL);
p = sm_realloc(p, 30);
SM_TEST(p != NULL);
if (HEAP_CHECK)
{
sm_dprintf("heap with 1 30-byte block allocated:\n");
sm_heap_report(smioout, 3);
}
if (HEAP_CHECK)
{
sm_free(p);
sm_dprintf("heap with 0 blocks allocated:\n");
sm_heap_report(smioout, 3);
sm_dprintf("xtrap count = %d\n", SmXtrapCount);
}
#if DEBUG
/* this will cause a core dump */
sm_dprintf("about to free %p for the second time\n", p);
sm_free(p);
#endif /* DEBUG */
return sm_test_end();
}