err.h

来自「mcf5307实验源代码」· C头文件 代码 · 共 116 行

/* $Id: //depot/blt/netboot/err.h#2 $
**
** Copyright 1998 Brian J. Swetland
** 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. The name of the author may not be used to endorse or promote products
**    derived from this software without specific prior written permission.
**
** THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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.
*/
#ifndef __ERR
#define __ERR

/* NOTE If ret is negative then it is an error otherwise it returns a 
//	success code. */

#define NUM_ERR		19
#define NOERR		0
#define ERR		-1
#define ERRNOMEM	-2
#define ERRRESOURCE	-3
#define ERRMEMCORRUPT	-4
#define ERRFORMAT	-5
#define ERRNOTFOUND	-6
#define ERRTYPE		-7
#define ERRTIMEOUT	-8
#define ERRNOTSUPPORTED	-9
#define ERROUTOFRANGE	-10
#define ERRPRIV		-11
#define ERRNOTREADY	-12
#define ERRNONEFREE	-13
#define ERRARG		-14
#define ERRINVALID	-15
#define ERRNOTOPEN	-16
#define ERRALREADYDONE	-17
#define ERRVER		-18

#define SFOUND		1
#define SNOTFOUND	2
#define SALT		3

/* Bits 16-31 are reserved for the facility code. */
#define OWNOS		0x70
#define OWNNOMAD	0x70

#define MAX_ERR_MSG	32
const char err_msg[NUM_ERR][MAX_ERR_MSG] = {  "success",
					"error",
					"out of memory",
					"resource allocation",
					"memory corrupt!!!",
					"format",
					"not found",
					"type",
					"timeout",
					"not supported",
					"out of range",
					"access denied",
					"not ready",	
					"none free",
					"bad argument",
					"invalid",
					"not open",
					"already done",
					"incorrect version" };

#ifdef __CPP_BINDING
extern "C" void kprintf(char *, ...);
class ret {
	private:
		int val;
	public:
		ret() { val=ERR; }
		ret(int src) { val=src; }
		ret operator=(const ret& src) { return val=src.val; }
		ret operator=(int src) { return val=src; }
		int operator==(const ret& cmp) { return val==cmp.val; }
		int operator!() { return val<0; } 
				// returns 1 if error, 0 if success
		int operator<(int cmp) {
//kprintf(" %d < %d\n",val,cmp);
			// TODO implement some severity check
			return (val<cmp); }
		int operator<(ret& cmp) { 
//kprintf(" %d < %d\n",val,cmp.val);
return (val<cmp.val); }
		operator int() const { return val; }
//		operator bool() { return (val<0); }
		const char *disp() {
			if(((val & 0x70) != 0x70) && ((val & 0x70) != 0x00))
				return "Unknown facility";
			return err_msg[-val]; }
};
#else
typedef int ret;
#endif /* __CPP_BINDING */

#endif /* __ERR */