includes/omapip/alloc.h

   1 /* alloc.h
   2
   3    Definitions for the object management API protocol memory allocation... */
   4
   5 /*
   6  * Copyright (C) 2004-2022 Internet Systems Consortium, Inc. ("ISC")
   7  * Copyright (c) 1996-2003 by Internet Software Consortium
   8  *
   9  * This Source Code Form is subject to the terms of the Mozilla Public
  10  * License, v. 2.0. If a copy of the MPL was not distributed with this
  11  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
  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  *   PO Box 360
  23  *   Newmarket, NH 03857 USA
  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