sockcall.h

在ARM7和UC/OSII的平台上实现了GPS自动报站的功能,涉及GPS模块LEA_4S的驱动,位置速寻算法,语音芯片ISD4004的录放音驱动,LED页面管理等等.从启动代码到操作系统的移植以及到业

/*
 * FILENAME: sockcall.h
 *
 * Copyright 1997 - 2000 By InterNiche Technologies Inc. All rights reserved
 *
 *
 * MODULE: TCP
 *
 *
 * PORTABLE: yes
 */

/* Additional Copyrights: */
/* Portions Copyright 1996 by NetPort Software. All rights reserved. 
 * UNIX-ish Sockets library definitions and entry points. 
 */

#ifndef _SOCKCALL_H
#define  _SOCKCALL_H 1

#define  SYS_SOCKETNULL -1    /* error return from sys_socket. */
#define  INVALID_SOCKET -1    /* WINsock-ish synonym for SYS_SOCKETNULL */
#define  SOCKET_ERROR   -1    /* error return from send(), sendto(), et.al. */
#define  SOL_SOCKET     -1    /* compatability parm for set/get sockopt */


extern   long  t_socket (int, int, int);
extern   int   t_bind (long, struct sockaddr *);
extern   int   t_listen (long, int);
extern   long  t_accept (long, struct sockaddr *);
extern   int   t_connect (long, struct sockaddr *);
extern   int   t_getpeername (long, struct sockaddr *);
extern   int   t_getsockname (long, struct sockaddr *);
extern   int   t_setsockopt (long, int, void * );
extern   int   t_getsockopt (long, int, void * );
extern   int   t_recv (long, char *, int, int);
extern   int   t_send (long, char *, int, int);
extern   int   t_recvfrom (long s, char * buf, int len, int flags, struct sockaddr *);
extern   int   t_sendto (long s, char * buf, int len, int flags, struct sockaddr *);
extern   int   t_shutdown (long, int);
extern   int   t_socketclose (long);
extern   int   t_errno(long s);

extern   char * so_perror(int);  /* return an error string for a socket error */

/* define a macro test for validating a passed socket */

#ifndef SOC_CHECK    /* ports may replace this test */
#define  SOC_RANGE(so)  /* null - this version doesn't need range setup */
#define SOC_CHECK(so) \
   {  struct socket * tmp; \
      for(tmp = (struct socket *)(&soq); tmp; tmp = tmp->next) \
      {  if(tmp == so) break; } \
      if(tmp != so) \
      {  dtrap("sockcall.h \n"); \
         return SOCKET_ERROR; \
      } \
    }
#endif   /* undefined SOC_CHECK */

#ifdef SO_SELECT

/* the definitions to support the select() function. These are about 
 * as UNIX-like as we can make 'em on embedded code. They are also 
 * fairly compatable with WinSock's select() definitions.
 */

typedef struct fd_set   /* the select socket array manager */
{ 
   unsigned fd_count;               /* how many are SET? */
   long     fd_array[FD_SETSIZE];   /* an array of SOCKETs */
} fd_set;

/* our select call - note the traditional "width" parameter is absent */
int t_select(fd_set * in, fd_set * out, fd_set * ev, long tmo_seconds);

/* Select-related functions are calls (not macros) to save space */
void  FD_CLR(long so, fd_set * set);
void  FD_SET(long so, fd_set * set);
int   FD_ISSET(long so, fd_set * set);

/* and one actual macro: */
#define  FD_ZERO(set)   (((fd_set FAR *)(set))->fd_count=0)

#endif   /* SO_SELECT */

#endif   /* _SOCKCALL_H */

/* end of file sockcall.h */