t-heap.c revision 266527 
1/*
2 * Copyright (c) 2000-2001 Proofpoint, Inc. and its suppliers.
3 *	All rights reserved.
4 *
5 * By using this file, you agree to the terms and conditions set
6 * forth in the LICENSE file which can be found at the top level of
7 * the sendmail distribution.
8 */
9
10#include <sm/gen.h>
11SM_IDSTR(id, "@(#)$Id: t-heap.c,v 1.11 2013-11-22 20:51:43 ca Exp $")
12
13#include <sm/debug.h>
14#include <sm/heap.h>
15#include <sm/io.h>
16#include <sm/test.h>
17#include <sm/xtrap.h>
18
19#if SM_HEAP_CHECK
20extern SM_DEBUG_T SmHeapCheck;
21# define HEAP_CHECK sm_debug_active(&SmHeapCheck, 1)
22#else /* SM_HEAP_CHECK */
23# define HEAP_CHECK 0
24#endif /* SM_HEAP_CHECK */
25
26int
27main(argc, argv)
28	int argc;
29	char **argv;
30{
31	void *p;
32
33	sm_test_begin(argc, argv, "test heap handling");
34	if (argc > 1)
35		sm_debug_addsettings_x(argv[1]);
36
37	p = sm_malloc(10);
38	SM_TEST(p != NULL);
39	p = sm_realloc_x(p, 20);
40	SM_TEST(p != NULL);
41	p = sm_realloc(p, 30);
42	SM_TEST(p != NULL);
43	if (HEAP_CHECK)
44	{
45		sm_dprintf("heap with 1 30-byte block allocated:\n");
46		sm_heap_report(smioout, 3);
47	}
48
49	if (HEAP_CHECK)
50	{
51		sm_free(p);
52		sm_dprintf("heap with 0 blocks allocated:\n");
53		sm_heap_report(smioout, 3);
54		sm_dprintf("xtrap count = %d\n", SmXtrapCount);
55	}
56
57#if DEBUG
58	/* this will cause a core dump */
59	sm_dprintf("about to free %p for the second time\n", p);
60	sm_free(p);
61#endif /* DEBUG */
62
63	return sm_test_end();
64}
65