external/bsd/dhcp/dist/includes/omapip/alloc.h

   1 /*      $NetBSD: alloc.h,v 1.1.1.3 2014/07/12 11:57:57 spz Exp $        */
   2 /* alloc.h
   3
   4    Definitions for the object management API protocol memory allocation... */
   5
   6 /*
   7  * Copyright (c) 2004,2009,2014 by Internet Systems Consortium, Inc. ("ISC")
   8  * Copyright (c) 1996-2003 by Internet Software Consortium
   9  *
  10  * Permission to use, copy, modify, and distribute this software for any
  11  * purpose with or without fee is hereby granted, provided that the above
  12  * copyright notice and this permission notice appear in all copies.
  13  *
  14  * THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES
  15  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
  16  * MERCHANTABILITY AND FITNESS.  IN NO EVENT SHALL ISC BE LIABLE FOR
  17  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
  18  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
  19  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
  20  * OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  21  *
  22  *   Internet Systems Consortium, Inc.
  23  *   950 Charter Street
  24  *   Redwood City, CA 94063
  25  *   <info@isc.org>
  26  *   https://www.isc.org/
  27  *
  28  */
  29
  30 isc_result_t omapi_buffer_new (omapi_buffer_t **, const char *, int);
  31 isc_result_t omapi_buffer_reference (omapi_buffer_t **,
  32                                      omapi_buffer_t *, const char *, int);
  33 isc_result_t omapi_buffer_dereference (omapi_buffer_t **, const char *, int);
  34
  35 #if defined (DEBUG_MEMORY_LEAKAGE) || defined (DEBUG_MALLOC_POOL) || \
  36                 defined (DEBUG_MEMORY_LEAKAGE_ON_EXIT)
  37 #define DMDOFFSET (sizeof (struct dmalloc_preamble))
  38 #define DMLFSIZE 16
  39 #define DMUFSIZE 16
  40 #define DMDSIZE (DMDOFFSET + DMLFSIZE + DMUFSIZE)
  41
  42 struct dmalloc_preamble {
  43         struct dmalloc_preamble *prev, *next;
  44         const char *file;
  45         int line;
  46         size_t size;
  47         unsigned long generation;
  48         unsigned char low_fence [DMLFSIZE];
  49 };
  50 #else
  51 #define DMDOFFSET 0
  52 #define DMDSIZE 0
  53 #endif
  54
  55 /* rc_history flags... */
  56 #define RC_LEASE        1
  57 #define RC_MISC         2
  58
  59 #if defined (DEBUG_RC_HISTORY)
  60 #if !defined (RC_HISTORY_MAX)
  61 # define RC_HISTORY_MAX 256
  62 #endif
  63
  64 #if !defined (RC_HISTORY_FLAGS)
  65 # define RC_HISTORY_FLAGS (RC_LEASE | RC_MISC)
  66 #endif
  67
  68 struct rc_history_entry {
  69         const char *file;
  70         int line;
  71         void *reference;
  72         void *addr;
  73         int refcnt;
  74 };
  75
  76 #define rc_register(x, l, r, y, z, d, f) do { \
  77                 if (RC_HISTORY_FLAGS & ~(f)) { \
  78                         rc_history [rc_history_index].file = (x); \
  79                         rc_history [rc_history_index].line = (l); \
  80                         rc_history [rc_history_index].reference = (r); \
  81                         rc_history [rc_history_index].addr = (y); \
  82                         rc_history [rc_history_index].refcnt = (z); \
  83                         rc_history_next (d); \
  84                 } \
  85         } while (0)
  86 #define rc_register_mdl(r, y, z, d, f) \
  87         rc_register (__FILE__, __LINE__, r, y, z, d, f)
  88 #else
  89 #define rc_register(file, line, reference, addr, refcnt, d, f)
  90 #define rc_register_mdl(reference, addr, refcnt, d, f)
  91 #endif
  92
  93 #if defined (DEBUG_MEMORY_LEAKAGE) || defined (DEBUG_MALLOC_POOL) || \
  94                 defined (DEBUG_MEMORY_LEAKAGE_ON_EXIT)
  95 extern struct dmalloc_preamble *dmalloc_list;
  96 extern unsigned long dmalloc_outstanding;
  97 extern unsigned long dmalloc_longterm;
  98 extern unsigned long dmalloc_generation;
  99 extern unsigned long dmalloc_cutoff_generation;
 100 #endif
 101
 102 #if defined (DEBUG_RC_HISTORY)
 103 extern struct rc_history_entry rc_history [RC_HISTORY_MAX];
 104 extern int rc_history_index;
 105 extern int rc_history_count;
 106 #endif