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version 3.7

    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 1.4 2015/06/25 17:53:49 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 - 2015
   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: void elwix_SetErr(int eno, char *estr, ...);
  120: 
  121: 
  122: #endif