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/********************************************************************
* $Author: jgoerzen $
* $Revision: 1.2 $
* $Date: 2000/12/20 01:19:20 $
* $Source: /home/jgoerzen/tmp/gopher-umn/gopher/head/object/fileio.h,v $
* $State: Exp $
*
* Paul Lindner, University of Minnesota CIS.
*
* Copyright 1991, 92, 93, 94 by the Regents of the University of Minnesota
* see the file "Copyright" in the distribution for conditions of use.
*********************************************************************
* MODULE: fileio.h
* Abstration of socket/file input output routines.
*********************************************************************
* Revision History:
* $Log: fileio.h,v $
* Revision 1.2 2000/12/20 01:19:20 jgoerzen
* Added patches from David Allen <s2mdalle@titan.vcu.edu>
*
* Revision 1.1.1.1 2000/08/19 00:28:56 jgoerzen
* Import from UMN Gopher 2.3.1 after GPLization
*
* Revision 3.16 1996/01/04 18:25:00 lindner
* Updates for autoconf
*
* Revision 3.15 1995/09/25 22:07:24 lindner
* Ansification
*
* Revision 3.14 1995/04/15 06:51:18 lindner
* Use interruptable_read
*
* Revision 3.13 1995/02/06 22:12:52 lindner
* Smaller max for fileio structs
*
* Revision 3.12 1994/10/18 21:39:06 lindner
* NeXT doesn't have mmap
*
* Revision 3.11 1994/09/29 19:54:24 lindner
* Add definition for Memory mapped I/O
*
* Revision 3.10 1994/08/19 16:29:37 lindner
* Add definition for memory mapped I/O
*
* Revision 3.9 1994/07/21 17:30:44 lindner
* Mods for Xenix
*
* Revision 3.8 1994/04/25 03:40:07 lindner
* VMS socket stuff still wasn't working..
*
* Revision 3.7 1994/04/22 06:42:02 lindner
* better compatibility checking
*
* Revision 3.6 1994/04/13 04:28:23 lindner
* add vms compatible.h
*
* Revision 3.5 1994/04/01 04:43:55 lindner
* fixes for VMS includes
*
* Revision 3.4 1994/03/17 04:36:32 lindner
* Fix for UCX
*
* Revision 3.3 1994/03/11 00:09:14 lindner
* Fix for UCX
*
* Revision 3.2 1994/03/08 03:21:18 lindner
* Mods for opening processes without sh
*
* Revision 3.1 1994/02/20 16:20:50 lindner
* New object based versions of buffered io routines
*
*
*********************************************************************/
#ifndef FILEIO_H
#define FILEIO_H
#include "STRstring.h"
#include "boolean.h"
#include "Stdlib.h"
#include "util.h"
#ifdef VMS
# include <processes.h>
# include <unixio.h>
# include <file.h>
#else
# ifdef M_XENIX
# include <sys/stream.h>
# include <sys/fcntl.h>
# include <sys/ptem.h>
# else
# include <fcntl.h>
# endif
#endif /* VMS */
#include "compatible.h"
struct fileio_struct
{
int bufindex;
int bufdatasize;
int bytepos;
char *buf;
boolean issocket;
String *filename;
int fd;
pid_t pid;
};
typedef struct fileio_struct FileIO;
#define FIOBUFSIZE 4096
#define FIOMAXOFILES 64
#define FIOisSocket(a) ((a)->issocket)
#define FIOgetPid(a) ((a)->pid)
#define FIOgetfd(a) ((a)->fd)
#define FIOgetFilename(a) (STRget((a)->filename))
#define FIOgetBufIndex(a) ((a)->bufindex)
#define FIOgetBufDsize(a) ((a)->bufdatasize)
#define FIOsetfd(a,b) ((a)->fd=(b))
#define FIOsetPid(a,b) ((a)->pid=(b))
#define FIOsetSocket(a,b) ((a)->issocket=(b))
#define FIOsetFilename(a,b) (STRset((a)->filename,(b)))
#define FIOsetBufIndex(a,b) ((a)->bufindex = (b))
#define FIOsetBufDsize(a,b) ((a)->bufdatasize = (b))
#define FIOisMMAPable(a) (FIOgetFilename(a) != NULL)
/*
* Optionally use BSD memory mapped I/O
*/
#if defined(HAVE_MMAP)
# define MMAP_IO
#endif
/*
* More elegant way of doing socket writes than ifdefs everywhere
*/
#if defined(VMS)
int DCLsystem(/* char */);
# define system(a) DCLsystem(a)
/** Note that Multinet already has socket_* **/
# if defined(WOLLONGONG) || defined(CMUIP) || defined(NETLIB)
# define socket_write netwrite
# define socket_read netread
# define socket_close netclose
# endif
# if defined(UCX)
# define socket_write write
# define socket_read read
# define socket_close close
# endif
/** Note that Wollongong is like Multinet for EPIPE handling **/
# if defined(UCX) || defined(CMUIP) || defined(NETLIB)
# define FIO_NOMULTIEOF
# endif
#else
/* Unix systems */
# define socket_write write
# define socket_read interruptable_read
# define socket_close close
#endif
/** Forward Declarations **/
FileIO *FIOopenUFS(char *fname, int flags, int mode);
FileIO *FIOopenfd(int fd, int issocket);
FileIO *FIOopenProcess(char *prog, char **args, char *rw);
FileIO *FIOopenCmdline(char *cmd, char *rw);
int FIOclose(FileIO *fio);
int FIOwriten(FileIO *fio, char *ptr, int nbytes);
int FIOwritestring(FileIO *, char *);
int FIOreadbuf(FileIO *fio, char *newbuf, int newbuflen);
int FIOreadn(FileIO *fio, char *ptr, int nbytes);
int FIOreadline(FileIO *fio, char *ptr, int maxlen);
int FIOreadlinezap(FileIO *fio, char *ptr, int maxlen);
int FIOreadtoken(FileIO *fio, char *ptr, int maxlen, char zechar);
int FIOwaitpid(FileIO *fio);
int FIOsystem(char *cmd);
void FIOdestroy(FileIO *fio);
#endif
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