ISC DHCP  4.3.2
A reference DHCPv4 and DHCPv6 implementation
alloc.h
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1 /* alloc.h
2 
3  Definitions for the object management API protocol memory allocation... */
4 
5 /*
6  * Copyright (c) 2004,2009,2014 by Internet Systems Consortium, Inc. ("ISC")
7  * Copyright (c) 1996-2003 by Internet Software Consortium
8  *
9  * Permission to use, copy, modify, and distribute this software for any
10  * purpose with or without fee is hereby granted, provided that the above
11  * copyright notice and this permission notice appear in all copies.
12  *
13  * THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES
14  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
15  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL ISC BE LIABLE FOR
16  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
17  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
18  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
19  * OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
20  *
21  * Internet Systems Consortium, Inc.
22  * 950 Charter Street
23  * Redwood City, CA 94063
24  * <info@isc.org>
25  * https://www.isc.org/
26  *
27  */
28 
29 isc_result_t omapi_buffer_new (omapi_buffer_t **, const char *, int);
30 isc_result_t omapi_buffer_reference (omapi_buffer_t **,
31  omapi_buffer_t *, const char *, int);
32 isc_result_t omapi_buffer_dereference (omapi_buffer_t **, const char *, int);
33 
34 #if defined (DEBUG_MEMORY_LEAKAGE) || defined (DEBUG_MALLOC_POOL) || \
35  defined (DEBUG_MEMORY_LEAKAGE_ON_EXIT)
36 #define DMDOFFSET (sizeof (struct dmalloc_preamble))
37 #define DMLFSIZE 16
38 #define DMUFSIZE 16
39 #define DMDSIZE (DMDOFFSET + DMLFSIZE + DMUFSIZE)
40 
41 struct dmalloc_preamble {
42  struct dmalloc_preamble *prev, *next;
43  const char *file;
44  int line;
45  size_t size;
46  unsigned long generation;
47  unsigned char low_fence [DMLFSIZE];
48 };
49 #else
50 #define DMDOFFSET 0
51 #define DMDSIZE 0
52 #endif
53 
54 /* rc_history flags... */
55 #define RC_LEASE 1
56 #define RC_MISC 2
57 
58 #if defined (DEBUG_RC_HISTORY)
59 #if !defined (RC_HISTORY_MAX)
60 # define RC_HISTORY_MAX 256
61 #endif
62 
63 #if !defined (RC_HISTORY_FLAGS)
64 # define RC_HISTORY_FLAGS (RC_LEASE | RC_MISC)
65 #endif
66 
67 struct rc_history_entry {
68  const char *file;
69  int line;
70  void *reference;
71  void *addr;
72  int refcnt;
73 };
74 
75 #define rc_register(x, l, r, y, z, d, f) do { \
76  if (RC_HISTORY_FLAGS & ~(f)) { \
77  rc_history [rc_history_index].file = (x); \
78  rc_history [rc_history_index].line = (l); \
79  rc_history [rc_history_index].reference = (r); \
80  rc_history [rc_history_index].addr = (y); \
81  rc_history [rc_history_index].refcnt = (z); \
82  rc_history_next (d); \
83  } \
84  } while (0)
85 #define rc_register_mdl(r, y, z, d, f) \
86  rc_register (__FILE__, __LINE__, r, y, z, d, f)
87 #else
88 #define rc_register(file, line, reference, addr, refcnt, d, f)
89 #define rc_register_mdl(reference, addr, refcnt, d, f)
90 #endif
91 
92 #if defined (DEBUG_MEMORY_LEAKAGE) || defined (DEBUG_MALLOC_POOL) || \
93  defined (DEBUG_MEMORY_LEAKAGE_ON_EXIT)
94 extern struct dmalloc_preamble *dmalloc_list;
95 extern unsigned long dmalloc_outstanding;
96 extern unsigned long dmalloc_longterm;
97 extern unsigned long dmalloc_generation;
98 extern unsigned long dmalloc_cutoff_generation;
99 #endif
100 
101 #if defined (DEBUG_RC_HISTORY)
102 extern struct rc_history_entry rc_history [RC_HISTORY_MAX];
103 extern int rc_history_index;
104 extern int rc_history_count;
105 #endif
const char int line
Definition: dhcpd.h:3615
isc_result_t omapi_buffer_dereference(omapi_buffer_t **, const char *, int)
Definition: alloc.c:752
isc_result_t omapi_buffer_reference(omapi_buffer_t **, omapi_buffer_t *, const char *, int)
Definition: alloc.c:730
const char * file
Definition: dhcpd.h:3615
isc_result_t omapi_buffer_new(omapi_buffer_t **, const char *, int)
Definition: alloc.c:713