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| Current File : //lib64/perl5/CORE/perlsdio.h |
/* perlsdio.h
*
* Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001,
* 2002, 2003, 2006, 2007, 2008 by Larry Wall and others
*
* You may distribute under the terms of either the GNU General Public
* License or the Artistic License, as specified in the README file.
*
*/
#ifdef PERLIO_IS_STDIO
#ifdef NETWARE
#include "nwstdio.h"
#else
/*
* This file #define-s the PerlIO_xxx abstraction onto stdio functions.
* Make this as close to original stdio as possible.
*/
#define PerlIO FILE
#define PerlIO_stderr() PerlSIO_stderr
#define PerlIO_stdout() PerlSIO_stdout
#define PerlIO_stdin() PerlSIO_stdin
#define PerlIO_isutf8(f) 0
#define PerlIO_printf PerlSIO_printf
#define PerlIO_stdoutf PerlSIO_stdoutf
#define PerlIO_vprintf(f,fmt,a) PerlSIO_vprintf(f,fmt,a)
#define PerlIO_write(f,buf,count) PerlSIO_fwrite(buf,1,count,f)
#define PerlIO_unread(f,buf,count) (-1)
#define PerlIO_open PerlSIO_fopen
#define PerlIO_fdopen PerlSIO_fdopen
#define PerlIO_reopen PerlSIO_freopen
#define PerlIO_close(f) PerlSIO_fclose(f)
#define PerlIO_puts(f,s) PerlSIO_fputs(s,f)
#define PerlIO_putc(f,c) PerlSIO_fputc(c,f)
#if defined(VMS)
# if defined(__DECC)
/* Unusual definition of ungetc() here to accommodate fast_sv_gets()'
* belief that it can mix getc/ungetc with reads from stdio buffer */
int decc$ungetc(int __c, FILE *__stream);
# define PerlIO_ungetc(f,c) ((c) == EOF ? EOF : \
((*(f) && !((*(f))->_flag & _IONBF) && \
((*(f))->_ptr > (*(f))->_base)) ? \
((*(f))->_cnt++, *(--(*(f))->_ptr) = (c)) : decc$ungetc(c,f)))
# else
# define PerlIO_ungetc(f,c) ungetc(c,f)
# endif
/* Work around bug in DECCRTL/AXP (DECC v5.x) and some versions of old
* VAXCRTL which causes read from a pipe after EOF has been returned
* once to hang.
*/
# define PerlIO_getc(f) \
(feof(f) ? EOF : getc(f))
# define PerlIO_read(f,buf,count) \
(feof(f) ? 0 : (SSize_t)fread(buf,1,count,f))
# define PerlIO_tell(f) ftell(f)
#else
# define PerlIO_getc(f) PerlSIO_fgetc(f)
# define PerlIO_ungetc(f,c) PerlSIO_ungetc(c,f)
# define PerlIO_read(f,buf,count) (SSize_t)PerlSIO_fread(buf,1,count,f)
# define PerlIO_tell(f) PerlSIO_ftell(f)
#endif
#define PerlIO_eof(f) PerlSIO_feof(f)
#define PerlIO_getname(f,b) fgetname(f,b)
#define PerlIO_error(f) PerlSIO_ferror(f)
#define PerlIO_fileno(f) PerlSIO_fileno(f)
#define PerlIO_clearerr(f) PerlSIO_clearerr(f)
#define PerlIO_flush(f) PerlSIO_fflush(f)
#if defined(VMS) && !defined(__DECC)
/* Old VAXC RTL doesn't reset EOF on seek; Perl folk seem to expect this */
#define PerlIO_seek(f,o,w) (((f) && (*f) && ((*f)->_flag &= ~_IOEOF)),fseek(f,o,w))
#else
# define PerlIO_seek(f,o,w) PerlSIO_fseek(f,o,w)
#endif
#define PerlIO_rewind(f) PerlSIO_rewind(f)
#define PerlIO_tmpfile() PerlSIO_tmpfile()
#define PerlIO_importFILE(f,fl) (f)
#define PerlIO_exportFILE(f,fl) (f)
#define PerlIO_findFILE(f) (f)
#define PerlIO_releaseFILE(p,f) ((void) 0)
#ifdef HAS_SETLINEBUF
#define PerlIO_setlinebuf(f) PerlSIO_setlinebuf(f);
#else
#define PerlIO_setlinebuf(f) PerlSIO_setvbuf(f, NULL, _IOLBF, 0);
#endif
/* Now our interface to Configure's FILE_xxx macros */
#ifdef USE_STDIO_PTR
#define PerlIO_has_cntptr(f) 1
#define PerlIO_get_ptr(f) PerlSIO_get_ptr(f)
#define PerlIO_get_cnt(f) PerlSIO_get_cnt(f)
#ifdef STDIO_CNT_LVALUE
#define PerlIO_canset_cnt(f) 1
#define PerlIO_set_cnt(f,c) PerlSIO_set_cnt(f,c)
#ifdef STDIO_PTR_LVALUE
#ifdef STDIO_PTR_LVAL_NOCHANGE_CNT
#define PerlIO_fast_gets(f) 1
#endif
#endif /* STDIO_PTR_LVALUE */
#else /* STDIO_CNT_LVALUE */
#define PerlIO_canset_cnt(f) 0
#define PerlIO_set_cnt(f,c) abort()
#endif
#ifdef STDIO_PTR_LVALUE
#ifdef STDIO_PTR_LVAL_NOCHANGE_CNT
#define PerlIO_set_ptrcnt(f,p,c) STMT_START {PerlSIO_set_ptr(f,p), PerlIO_set_cnt(f,c);} STMT_END
#else
#ifdef STDIO_PTR_LVAL_SETS_CNT
/* assert() may pre-process to ""; potential syntax error (FILE_ptr(), ) */
#define PerlIO_set_ptrcnt(f,p,c) STMT_START {PerlSIO_set_ptr(f,p); assert(PerlSIO_get_cnt(f) == (c));} STMT_END
#define PerlIO_fast_gets(f) 1
#else
#define PerlIO_set_ptrcnt(f,p,c) abort()
#endif
#endif
#endif
#else /* USE_STDIO_PTR */
#define PerlIO_has_cntptr(f) 0
#define PerlIO_canset_cnt(f) 0
#define PerlIO_get_cnt(f) (abort(),0)
#define PerlIO_get_ptr(f) (abort(),(void *)0)
#define PerlIO_set_cnt(f,c) abort()
#define PerlIO_set_ptrcnt(f,p,c) abort()
#endif /* USE_STDIO_PTR */
#ifndef PerlIO_fast_gets
#define PerlIO_fast_gets(f) 0
#endif
#ifdef FILE_base
#define PerlIO_has_base(f) 1
#define PerlIO_get_base(f) PerlSIO_get_base(f)
#define PerlIO_get_bufsiz(f) PerlSIO_get_bufsiz(f)
#else
#define PerlIO_has_base(f) 0
#define PerlIO_get_base(f) (abort(),(void *)0)
#define PerlIO_get_bufsiz(f) (abort(),0)
#endif
#endif /* NETWARE */
#endif /* PERLIO_IS_STDIO */
/*
* Local variables:
* c-indentation-style: bsd
* c-basic-offset: 4
* indent-tabs-mode: t
* End:
*
* ex: set ts=8 sts=4 sw=4 noet:
*/