1 /* 2 * Copyright (c) 2000-2001 Sendmail, 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 #pragma ident "%Z%%M% %I% %E% SMI" 11 12 #include <sm/gen.h> 13 SM_IDSTR(id, "@(#)$Id: t-heap.c,v 1.8 2001/03/06 17:27:36 ca Exp $") 14 15 #include <sm/debug.h> 16 #include <sm/heap.h> 17 #include <sm/io.h> 18 #include <sm/test.h> 19 #include <sm/xtrap.h> 20 21 #if SM_HEAP_CHECK 22 extern SM_DEBUG_T SmHeapCheck; 23 # define HEAP_CHECK sm_debug_active(&SmHeapCheck, 1) 24 #else /* SM_HEAP_CHECK */ 25 # define HEAP_CHECK 0 26 #endif /* SM_HEAP_CHECK */ 27 28 int 29 main(argc, argv) 30 int argc; 31 char **argv; 32 { 33 void *p; 34 35 sm_test_begin(argc, argv, "test heap handling"); 36 if (argc > 1) 37 sm_debug_addsettings_x(argv[1]); 38 39 p = sm_malloc(10); 40 SM_TEST(p != NULL); 41 p = sm_realloc_x(p, 20); 42 SM_TEST(p != NULL); 43 p = sm_realloc(p, 30); 44 SM_TEST(p != NULL); 45 if (HEAP_CHECK) 46 { 47 sm_dprintf("heap with 1 30-byte block allocated:\n"); 48 sm_heap_report(smioout, 3); 49 } 50 51 if (HEAP_CHECK) 52 { 53 sm_free(p); 54 sm_dprintf("heap with 0 blocks allocated:\n"); 55 sm_heap_report(smioout, 3); 56 sm_dprintf("xtrap count = %d\n", SmXtrapCount); 57 } 58 59 #if DEBUG 60 /* this will cause a core dump */ 61 sm_dprintf("about to free %p for the second time\n", p); 62 sm_free(p); 63 #endif /* DEBUG */ 64 65 return sm_test_end(); 66 } 67