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Annotation of embedaddon/dhcp/includes/omapip/alloc.h, revision 1.1.1.1

1.1       misho       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