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Annotation of libelwix/inc/defs.h, revision 1.1.1.1

1.1       misho       1: /*************************************************************************
                      2: * (C) 2013 AITNET ltd - Sofia/Bulgaria - <misho@aitnet.org>
                      3: *  by Michael Pounov <misho@elwix.org>
                      4: *
                      5: * $Author: misho $
                      6: * $Id: defs.h,v 1.8 2012/08/02 00:47:46 misho Exp $
                      7: *
                      8: **************************************************************************
                      9: The ELWIX and AITNET software is distributed under the following
                     10: terms:
                     11: 
                     12: All of the documentation and software included in the ELWIX and AITNET
                     13: Releases is copyrighted by ELWIX - Sofia/Bulgaria <info@elwix.org>
                     14: 
                     15: Copyright 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013
                     16:        by Michael Pounov <misho@elwix.org>.  All rights reserved.
                     17: 
                     18: Redistribution and use in source and binary forms, with or without
                     19: modification, are permitted provided that the following conditions
                     20: are met:
                     21: 1. Redistributions of source code must retain the above copyright
                     22:    notice, this list of conditions and the following disclaimer.
                     23: 2. Redistributions in binary form must reproduce the above copyright
                     24:    notice, this list of conditions and the following disclaimer in the
                     25:    documentation and/or other materials provided with the distribution.
                     26: 3. All advertising materials mentioning features or use of this software
                     27:    must display the following acknowledgement:
                     28: This product includes software developed by Michael Pounov <misho@elwix.org>
                     29: ELWIX - Embedded LightWeight unIX and its contributors.
                     30: 4. Neither the name of AITNET nor the names of its contributors
                     31:    may be used to endorse or promote products derived from this software
                     32:    without specific prior written permission.
                     33: 
                     34: THIS SOFTWARE IS PROVIDED BY AITNET AND CONTRIBUTORS ``AS IS'' AND
                     35: ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
                     36: IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
                     37: ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
                     38: FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
                     39: DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
                     40: OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
                     41: HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
                     42: LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
                     43: OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
                     44: SUCH DAMAGE.
                     45: */
                     46: #ifndef __DEFS_H
                     47: #define __DEFS_H
                     48: 
                     49: 
                     50: /* memory pool helper macros */
                     51: 
                     52: #define MEM_MAGIC_START        0xAAAAAAAA
                     53: #define MEM_MAGIC_STOP 0x55555555
                     54: #define MEM_ALLOC_MAX  0xFFFFFFF3
                     55: 
                     56: #define MEM_MIN_BUCKET 4
                     57: #define MEM_MAX_BUCKET 32
                     58: 
                     59: #define MEM_PTR2LINT(x)        ((u_int) ((uintptr_t)(x)) & 0xFFFFFFFF)
                     60: #define MEM_PTR2HINT(x)        ((u_int) (sizeof(uintptr_t) == sizeof(u_int)) ? 0 : \
                     61:                                (((uintptr_t)(x)) >> 32) & 0xFFFFFFFF)
                     62: #define MEM_INT2PTR(x) ((void*) ((uintptr_t)(x)))
                     63: 
                     64: #define MEM_BADADDR(x) (MEM_PTR2LINT(x) < 0x00001000U || MEM_PTR2LINT(x) > 0xFFFFF000U)
                     65: #define MEM_CORRUPT(x) (!(x) || ((u_int*)(x))[-1] != MEM_MAGIC_START || \
                     66:                                ((u_int*)(x))[((u_int*)(x))[-2]] != MEM_MAGIC_STOP)
                     67: 
                     68: #define mem_data(x, _type)     (assert((x)), (_type) ((x)->alloc_mem ? ((x)->alloc_mem + 2) : NULL))
                     69: #define mem_len(x)             (assert((x)), (x)->alloc_mem ? *(x)->alloc_mem : 0)
                     70: #define mem_size(x)            (mem_len((x)) * sizeof(u_int))
                     71: 
                     72: 
                     73: /* CRC helpers */
                     74: 
                     75: #define MAX_FLETCHER16_DIGEST  21
                     76: #define MAX_FLETCHER_DIGEST    360
                     77: #define MAX_ADLER_DIGEST       5552
                     78: 
                     79: #define POLY_CRC32             0xC0A0A0D5
                     80: #define INIT_BERNSTEIN         0x1505
                     81: #define INIT_FNV1              0x811c9dc5
                     82: #define POLY_FNV1              0x1000193
                     83: #define INIT_JENKINS32         0xDEADBEEF
                     84: 
                     85: #define ROT32(x, k)            (((x) << (k)) | ((x) >> (32 - (k))))
                     86: #define MIX32(a, b, c) \
                     87: do { \
                     88:          a -= c;  a ^= ROT32(c, 4);  c += b; \
                     89:          b -= a;  b ^= ROT32(a, 6);  a += c; \
                     90:          c -= b;  c ^= ROT32(b, 8);  b += a; \
                     91:          a -= c;  a ^= ROT32(c, 16); c += b; \
                     92:          b -= a;  b ^= ROT32(a, 19); a += c; \
                     93:          c -= b;  c ^= ROT32(b, 4);  b += a; \
                     94: } while (0)
                     95: #define FINAL32(a, b, c) \
                     96: do { \
                     97:          c ^= b; c -= ROT32(b, 14); \
                     98:          a ^= c; a -= ROT32(c, 11); \
                     99:          b ^= a; b -= ROT32(a, 25); \
                    100:          c ^= b; c -= ROT32(b, 16); \
                    101:          a ^= c; a -= ROT32(c, 4);  \
                    102:          b ^= a; b -= ROT32(a, 14); \
                    103:          c ^= b; c -= ROT32(b, 24); \
                    104: } while (0)
                    105: 
                    106: 
                    107: #define LOGERR { \
                    108:                        elwix_Errno = errno; \
                    109:                        strlcpy(elwix_Error, strerror(errno), sizeof elwix_Error); \
                    110:                }
                    111: 
                    112: extern mpool_t *elwix_mpool;
                    113: extern int use_mm;
                    114: extern const char elwix_Prog[STRSIZ];
                    115: 
                    116: extern int elwix_Errno;
                    117: extern char elwix_Error[STRSIZ];
                    118: 
                    119: inline void elwix_SetErr(int eno, char *estr, ...);
                    120: 
                    121: 
                    122: #endif