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dhcp 4.1 r7

    1: /* alloc.h
    2: 
    3:    Definitions for the object management API protocol memory allocation... */
    4: 
    5: /*
    6:  * Copyright (c) 2004,2009 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:  * This software has been written for Internet Systems Consortium
   28:  * by Ted Lemon in cooperation with Vixie Enterprises and Nominum, Inc.
   29:  * To learn more about Internet Systems Consortium, see
   30:  * ``https://www.isc.org/''.  To learn more about Vixie Enterprises,
   31:  * see ``http://www.vix.com''.   To learn more about Nominum, Inc., see
   32:  * ``http://www.nominum.com''.
   33:  */
   34: 
   35: isc_result_t omapi_buffer_new (omapi_buffer_t **, const char *, int);
   36: isc_result_t omapi_buffer_reference (omapi_buffer_t **,
   37: 				     omapi_buffer_t *, const char *, int);
   38: isc_result_t omapi_buffer_dereference (omapi_buffer_t **, const char *, int);
   39: 
   40: #if defined (DEBUG_MEMORY_LEAKAGE) || defined (DEBUG_MALLOC_POOL) || \
   41: 		defined (DEBUG_MEMORY_LEAKAGE_ON_EXIT)
   42: #define DMDOFFSET (sizeof (struct dmalloc_preamble))
   43: #define DMLFSIZE 16
   44: #define DMUFSIZE 16
   45: #define DMDSIZE (DMDOFFSET + DMLFSIZE + DMUFSIZE)
   46: 
   47: struct dmalloc_preamble {
   48: 	struct dmalloc_preamble *prev, *next;
   49: 	const char *file;
   50: 	int line;
   51: 	size_t size;
   52: 	unsigned long generation;
   53: 	unsigned char low_fence [DMLFSIZE];
   54: };
   55: #else
   56: #define DMDOFFSET 0
   57: #define DMDSIZE 0
   58: #endif
   59: 
   60: /* rc_history flags... */
   61: #define RC_LEASE	1
   62: #define RC_MISC		2
   63: 
   64: #if defined (DEBUG_RC_HISTORY)
   65: #if !defined (RC_HISTORY_MAX)
   66: # define RC_HISTORY_MAX 256
   67: #endif
   68: 
   69: #if !defined (RC_HISTORY_FLAGS)
   70: # define RC_HISTORY_FLAGS (RC_LEASE | RC_MISC)
   71: #endif
   72: 
   73: struct rc_history_entry {
   74: 	const char *file;
   75: 	int line;
   76: 	void *reference;
   77: 	void *addr;
   78: 	int refcnt;
   79: };
   80: 
   81: #define rc_register(x, l, r, y, z, d, f) do { \
   82: 		if (RC_HISTORY_FLAGS & ~(f)) { \
   83: 			rc_history [rc_history_index].file = (x); \
   84: 			rc_history [rc_history_index].line = (l); \
   85: 			rc_history [rc_history_index].reference = (r); \
   86: 			rc_history [rc_history_index].addr = (y); \
   87: 			rc_history [rc_history_index].refcnt = (z); \
   88: 			rc_history_next (d); \
   89: 		} \
   90: 	} while (0)
   91: #define rc_register_mdl(r, y, z, d, f) \
   92: 	rc_register (__FILE__, __LINE__, r, y, z, d, f)
   93: #else
   94: #define rc_register(file, line, reference, addr, refcnt, d, f)
   95: #define rc_register_mdl(reference, addr, refcnt, d, f)
   96: #endif
   97: 
   98: #if defined (DEBUG_MEMORY_LEAKAGE) || defined (DEBUG_MALLOC_POOL) || \
   99: 		defined (DEBUG_MEMORY_LEAKAGE_ON_EXIT)
  100: extern struct dmalloc_preamble *dmalloc_list;
  101: extern unsigned long dmalloc_outstanding;
  102: extern unsigned long dmalloc_longterm;
  103: extern unsigned long dmalloc_generation;
  104: extern unsigned long dmalloc_cutoff_generation;
  105: #endif
  106: 
  107: #if defined (DEBUG_RC_HISTORY)
  108: extern struct rc_history_entry rc_history [RC_HISTORY_MAX];
  109: extern int rc_history_index;
  110: extern int rc_history_count;
  111: #endif