freebsd-dev/contrib/isc-dhcp/includes/omapip/alloc.h
2002-02-19 11:04:34 +00:00

121 lines
4.2 KiB
C

/* alloc.h
Definitions for the object management API protocol memory allocation... */
/*
* Copyright (c) 1996-2001 Internet Software Consortium.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of The Internet Software Consortium nor the names
* of its contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE INTERNET SOFTWARE CONSORTIUM AND
* CONTRIBUTORS ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE INTERNET SOFTWARE CONSORTIUM OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* This software has been written for the Internet Software Consortium
* by Ted Lemon in cooperation with Vixie Enterprises and Nominum, Inc.
* To learn more about the Internet Software Consortium, see
* ``http://www.isc.org/''. To learn more about Vixie Enterprises,
* see ``http://www.vix.com''. To learn more about Nominum, Inc., see
* ``http://www.nominum.com''.
*/
isc_result_t omapi_buffer_new (omapi_buffer_t **, const char *, int);
isc_result_t omapi_buffer_reference (omapi_buffer_t **,
omapi_buffer_t *, const char *, int);
isc_result_t omapi_buffer_dereference (omapi_buffer_t **, const char *, int);
#if defined (DEBUG_MEMORY_LEAKAGE) || defined (DEBUG_MALLOC_POOL) || \
defined (DEBUG_MEMORY_LEAKAGE_ON_EXIT)
#define DMDOFFSET (sizeof (struct dmalloc_preamble))
#define DMLFSIZE 16
#define DMUFSIZE 16
#define DMDSIZE (DMDOFFSET + DMLFSIZE + DMUFSIZE)
struct dmalloc_preamble {
struct dmalloc_preamble *prev, *next;
const char *file;
int line;
size_t size;
unsigned long generation;
unsigned char low_fence [DMLFSIZE];
};
#else
#define DMDOFFSET 0
#define DMDSIZE 0
#endif
/* rc_history flags... */
#define RC_LEASE 1
#define RC_MISC 2
#if defined (DEBUG_RC_HISTORY)
#if !defined (RC_HISTORY_MAX)
# define RC_HISTORY_MAX 256
#endif
#if !defined (RC_HISTORY_FLAGS)
# define RC_HISTORY_FLAGS (RC_LEASE | RC_MISC)
#endif
struct rc_history_entry {
const char *file;
int line;
void *reference;
void *addr;
int refcnt;
};
#define rc_register(x, l, r, y, z, d, f) do { \
if (RC_HISTORY_FLAGS & ~(f)) { \
rc_history [rc_history_index].file = (x); \
rc_history [rc_history_index].line = (l); \
rc_history [rc_history_index].reference = (r); \
rc_history [rc_history_index].addr = (y); \
rc_history [rc_history_index].refcnt = (z); \
rc_history_next (d); \
} \
} while (0)
#define rc_register_mdl(r, y, z, d, f) \
rc_register (__FILE__, __LINE__, r, y, z, d, f)
#else
#define rc_register(file, line, reference, addr, refcnt, d, f)
#define rc_register_mdl(reference, addr, refcnt, d, f)
#endif
#if defined (DEBUG_MEMORY_LEAKAGE) || defined (DEBUG_MALLOC_POOL) || \
defined (DEBUG_MEMORY_LEAKAGE_ON_EXIT)
extern struct dmalloc_preamble *dmalloc_list;
extern unsigned long dmalloc_outstanding;
extern unsigned long dmalloc_longterm;
extern unsigned long dmalloc_generation;
extern unsigned long dmalloc_cutoff_generation;
#endif
#if defined (DEBUG_RC_HISTORY)
extern struct rc_history_entry rc_history [RC_HISTORY_MAX];
extern int rc_history_index;
extern int rc_history_count;
#endif