util.h
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上传日期:2007-04-14
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文件大小:3k
- /* ==== util.h ============================================================
- * Copyright (c) 1991, 1992, 1993 by Chris Provenzano, proven@mit.edu
- * 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. All advertising materials mentioning features or use of this software
- * must display the following acknowledgement:
- * This product includes software developed by Chris Provenzano.
- * 4. The name of Chris Provenzano may not be used to endorse or promote
- * products derived from this software without specific prior written
- * permission.
- *
- * THIS SOFTWARE IS PROVIDED BY CHRIS PROVENZANO ``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 CHRIS PROVENZANO 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.
- *
- * $Id$
- *
- * Description : Header file for generic utility functions.
- *
- * 91/08/31 proven - Added exchange.
- * Exchange any two objects of any size in any table.
- *
- * 91/10/06 proven - Cleaned out all the old junk.
- *
- * 91/03/06 proven - Added getint.
- */
- #ifndef _PTHREAD_UTIL_H
- #define _PTHREAD_UTIL_H
- #ifndef NULL
- #define NULL 0
- #endif
- /* Stuff only pthread internals really uses */
- #if defined(PTHREAD_KERNEL)
- #undef FALSE
- #undef TRUE
- typedef enum Boolean {
- FALSE,
- TRUE
- } Boolean;
- #define OK 0
- #define NUL ' '
- #define NOTOK -1
- #if ! defined(min)
- #define min(a,b) (((a)<(b))?(a):(b))
- #define max(a,b) (((a)>(b))?(a):(b))
- #endif
- /* Alingn the size to the next multiple of 4 bytes */
- #define ALIGN4(size) ((size + 3) & ~3)
- #define ALIGN8(size) ((size + 7) & ~7)
- #ifdef DEBUG
- #define DEBUG0(s) printf(s)
- #define DEBUG1(s,a) printf(s,a)
- #define DEBUG2(s,a,b) printf(s,a,b)
- #define DEBUG3(s,a,b,c) printf(s,a,b,c)
- #else
- #define DEBUG0(s)
- #define DEBUG1(s)
- #define DEBUG2(s)
- #define DEBUG3(s)
- #endif
- #endif
- #endif