std.h

用于嵌入式系统的TCP/IP协议栈及若干服务

/*
*            Copyright (c) 1998-2001 by NETsilicon Inc.
*
*  This software is copyrighted by and is the sole property of
*  NETsilicon.  All rights, title, ownership, or other interests
*  in the software remain the property of NETsilicon.  This
*  software may only be used in accordance with the corresponding
*  license agreement.  Any unauthorized use, duplication, transmission,
*  distribution, or disclosure of this software is expressly forbidden.
*
*  This Copyright notice may not be removed or modified without prior
*  written consent of NETsilicon.
*
*  NETsilicon, reserves the right to modify this software
*  without notice.
*
*  NETsilicon
*  411 Waverley Oaks Road                  USA 781.647.1234
*  Suite 227                               http://www.netsilicon.com
*  Waltham, MA 02452                       [e-mail]
*
*************************************************************************
*  $Name: Fusion 6.52 Fusion 6.51 $
*  $Date: 2002/01/15 15:19:30 $
*  $Source: M:/psisrc/stack/incl/rcs/std.h $
*  $Revision: 1.29 $
**************************************************************************
*                         - Revision Log -                               *
* Who   When        Why
*
* FND   09/17/01    Definition of min, max, and abs disabled because of
*                   conflicts with TCS C/C++ headers.
*
**************************************************************************
*  File Description:  FUSION Generic standard include file
*
**************************************************************************/

#ifndef _STD_
#define _STD_

#include "config.h"
#include "ccdep.h"

/* Some things that used to be in config.h but are always required
   and will eventually be deprecated in the code.
*/

#define ptr2u32(ptr)    ((u32)ptr)

/* used on embedded systems only */
#ifndef NULL
#define NULL (void *)0
#endif

#define BUILTIN_TIMER /* Deprecated.  Related code to be removed in 5.x */

/*************************************************************************/

#define ARR_CNT(a)      (sizeof(a)/sizeof(a[0]))
#define ARR_END(a)      (&a[ARR_CNT(a)])
#define ARR_LAST(a)     (&a[ARR_CNT(a) - 1])
#define SYS_ERR         (-1)
#define ERR         (-1)

/* pseudo keywords */
#define boolean         int
#define true            1
#define false           0

#define import          extern
#define export

#define OK          0
#define fallthru
#define skip
#define forever         for(;;)

/* if NO_ROUTER is not defined then IGMP_PROTOCOL should be */
#if defined(RIP_PROTOCOL) || defined(OSPF_PROTOCOL)
#ifndef IGMP_PROTOCOL
#define IGMP_PROTOCOL /* need IGMP protocol for RIP */
#endif
#endif

/* kernel pseudo keywords */
/* When used with MOTOROLA define _savpri as 16 bit integer to store SR register.
   For INTEL it should be 32 bit integer. */
#ifndef use_critical
#define use_critical        fast int _savpri
#endif

#ifndef critical
extern int os_critical(void);
extern void os_normal(int savpri);
#define critical        (_savpri = os_critical())
#define normal          (os_normal(_savpri))
#endif

#define use_lcritical       use_critical    
#define lcritical       critical    
#define lnormal         normal  

/* standard FUSION types */
#ifdef __STDC__
#define NO_FAST
#endif


typedef int  ((*pf_t)(void * mp));
typedef pf_t  ((*pfpf_t)(void * mp));
typedef pfpf_t (*st)(void * mp);  /* ptr. to a state function */

#ifndef odd
#define odd(x)          ((x)&1)
#endif

#ifndef abs
#ifdef __GNU__
#define abs(i)  __builtin_abs(i)
#else
#if !defined(__cplusplus)
#if __TCS_VERSION__>=300
/*FIXTHIS it should be independent of compiler version. */
#else
#define abs(i)           ((i) < 0 ? -(i) : (i))
#endif
#endif
#endif
#endif

#ifndef max
#ifdef __GNU__
#define max(a,b) \
	({typedef _ta = (a), _tb = (b); \
	_ta _a = (a); _tb _b = (b); \
	_a > _b ? _a : _b; })
#else
#if !defined(__cplusplus)
#define max(x,y)        ((x) >= (y) ? (x) : (y))
#endif
#endif
#endif

#ifndef min
#ifdef __GNU__
#define min(a,b) \
	({typedef _ta = (a), _tb = (b); \
	_ta _a = (a); _tb _b = (b); \
	_a < _b ? _a : _b; })
#else
#if !defined(__cplusplus)
#define min(x,y)        ((x) <= (y) ? (x) : (y))
#endif
#endif
#endif

#ifndef bound
#ifdef __GNU__
#define bound(a,b,c) \
	({typedef _ta = (a), _tb = (b), _tc = (c); \
	_ta _a = (a); _tb _b = (b); _tc _c = (c); \
	_a < _b ? _b : _a < _c ? _a : _c; })
#else
#define bound(v,min,max)    ((v)<(min) ? (min) : (v)<(max) ? (v) : (max))
#endif
#endif

#ifndef inbound
#define inbound(v,min,max)  ((min)<=(v) && (v)<=(max))
#endif


#define cptostack(val, ptr) (*(ptr) = val)

#define kpnewa(type, cnt) ((type *)h_calloc((i32)((cnt) * sizeof(type)), (int *)0, false))
#define knewa(type, cnt) ((type *)h_alloc((i32)((cnt) * sizeof(type)), (int *)0, false))

/* List of possible FUSION DEMO application tasks */
#define UDP_SINK        1       /* UDP client sink */
#define UDP_ECHO        2       /* UDP client echo */
#define TCP_ECHO        3       /* TCP client echo */ 
#define TCP_SERV_ECHO   4       /* TCP server echo */
#define TCP_SINK        5       /* TCP client sink */
#define TCP_SERV_SINK   6       /* TCP server sink */
#define UDP_SERV_ECHO   7       /* UDP server echo */
#define UDP_SERV_SINK   8       /* UDP server sink */
#define DO_TELNETD      9       /* Telnet daemon */
#define TFTP_PUT        10      /* Tftp put */
#define TFTP_GET        11      /* Tftp get */
#define FTP_CLIENT_TEST 12      /* general ftp client test */
#define FTP_SERVER_TEST 13      /* general ftp server test */
#define RPC_CLIENT_TEST 14	/* some rpc client tests */
#define RPC_SERVER_TEST 15	/* rpc server test */

/* Some sanity checks */

#if defined(OSPF_PROTOCOL) || defined(RIP_PROTOCOL)

#if !defined(IP_ROUTER)
#error You must define IP_ROUTER to use RIP or OSPF.
#endif

#endif /* OSPF_PROTOCOL or RIP_PROTOCOL is defined */

#if defined(NAT_ROUTER)
#if !defined(IP_ROUTER)
#error You must have IP_ROUTER defined to use NAT_ROUTER.
#endif
#endif

#ifdef CPU_IS_LITTLE_ENDIAN
#ifdef CPU_IS_BIG_ENDIAN
#error You must define only one of CPU_IS_BIG_ENDIAN or CPU_IS_LITTLE_ENDIAN
#endif
#else
#ifndef CPU_IS_BIG_ENDIAN
#error You must defined one and only one of CPU_IS_BIG_ENDIAN or CPU_IS_LITTLE_ENDIAN
#endif /* ndef CPU_IS_BIG_ENDIAN */
#endif /* CPU_IS_LITTLE_ENDIAN */

#ifdef NO_TRANSMIT_Q
#error NO_TRANSMIT_Q compiler symbol not used anymore. Please see Fusion porting guide.
#endif


/************************************************************************************/
/* If config.h has the RFC 1323 symbol defined, define all of the sybmols that cause*/
/* the RFC 1323 features to be compiled.                                            */
/************************************************************************************/
#ifdef TCP_RFC_1323 
#ifndef TCP_WND_SCALE
#define TCP_WND_SCALE
#endif
#ifndef TCP_RTTM
#define TCP_RTTM
#endif
#ifndef TCP_PAWS
#define TCP_PAWS
#endif
#ifndef TCP_TIMESTAMPS
#define TCP_TIMESTAMPS
#endif
#endif /* TCP_RFC_1323 */

/************************************************************************************/
/* Translate between config.h symbol names and internal symbol names */
#ifdef TCP_RFC_2001
#ifndef TCP_SS_CA_FRETR_FREC
#define TCP_SS_CA_FRETR_FREC
#endif
#endif /* TCP_RFC_2001 */

#ifdef TCP_RFC_2018
#ifndef TCP_SELACK_ENHANCEMENTS
#define TCP_SELACK_ENHANCEMENTS
#endif
#endif /* TCP_RFC_2018 */

#ifdef TCP_RFC_1644
#ifndef TCP_TRANSACTION_TCP
#define TCP_TRANSACTION_TCP
#endif
#endif /* TCP_RFC_1644 */


/* We need the code for the timestamps option if either the RTTM code or the PAWS code
   is included */
#ifndef TCP_TIMESTAMPS
#if ( defined(TCP_RTTM) || defined(TCP_PAWS) )
#define TCP_TIMESTAMPS
#endif /* TCP_RTTM || TCP_PAWS */
#endif /* TCP_TIMESTAMPS */


#ifndef OS_SET_ERRNO
#define OS_SET_ERRNO(e)
#endif

#ifndef OS_RAND
/* A not-very-random (if used at system startup time) default */
#define OS_RAND t_time
#else
/* prototype the function named in config.h */
u32 OS_RAND;
#endif

#ifndef MAX_DEV_NAME
#define MAX_DEV_NAME    16
#endif

#endif /*_STD_*/