X-Git-Url: https://perl5.git.perl.org/perl5.git/blobdiff_plain/bf348c4016bc75478862ef0ba29139e4db9dc252..32da1f0cbb3039b18da95a780824c723ee95d127:/perlsdio.h diff --git a/perlsdio.h b/perlsdio.h index 0d6612b..2d6b22e 100644 --- a/perlsdio.h +++ b/perlsdio.h @@ -1,159 +1,21 @@ -#ifdef PERLIO_IS_STDIO -/* - * This file #define-s the PerlIO_xxx abstraction onto stdio functions. - * Make this as close to original stdio as possible. +/* 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. + * */ -#define PerlIO FILE -#define PerlIO_stderr() stderr -#define PerlIO_stdout() stdout -#define PerlIO_stdin() stdin - -#define PerlIO_fdupopen(f) (f) -#define PerlIO_isutf8(f) 0 - -#define PerlIO_printf fprintf -#define PerlIO_stdoutf printf -#define PerlIO_vprintf(f,fmt,a) vfprintf(f,fmt,a) -#define PerlIO_write(f,buf,count) fwrite1(buf,1,count,f) -#define PerlIO_open fopen -#define PerlIO_fdopen fdopen -#define PerlIO_reopen freopen -#ifdef SOCKS_64BIT_BUG -# define PerlIO_close(f) (Perl_do_s64_delete_buffer(f), fclose(f)) -#else -# define PerlIO_close(f) fclose(f) -#endif -#define PerlIO_puts(f,s) fputs(s,f) -#define PerlIO_putc(f,c) fputc(c,f) -#if defined(VMS) -# if defined(__DECC) - /* Unusual definition of ungetc() here to accomodate 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 -# ifdef SOCKS_64BIT_BUG -# define PerlIO_getc(f) Perl_do_s64_getc(f) -# define PerlIO_ungetc(f,c) Perl_do_s64_ungetc(c,f) -# define PerlIO_read(f,buf,count) Perl_do_s64_fread(buf,count,f) -# define PerlIO_tell(f) Perl_do_s64_tell(f) -# else -# define PerlIO_getc(f) getc(f) -# define PerlIO_ungetc(f,c) ungetc(c,f) -# define PerlIO_read(f,buf,count) (SSize_t)fread(buf,1,count,f) -# define PerlIO_tell(f) ftell(f) -# endif /* SOCKS_64BIT_BUG */ -#endif -#define PerlIO_eof(f) feof(f) -#define PerlIO_getname(f,b) fgetname(f,b) -#define PerlIO_error(f) ferror(f) -#define PerlIO_fileno(f) fileno(f) -#define PerlIO_clearerr(f) clearerr(f) -#define PerlIO_flush(f) Fflush(f) -#ifdef SOCKS_64BIT_BUG -# define PerlIO_seek(f,o,w) Perl_do_s64_seek(f,o,w) -#else -# 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) fseek(f,o,w) -# endif -#endif -#ifdef HAS_FGETPOS -#define PerlIO_getpos(f,p) fgetpos(f,p) -#endif -#ifdef HAS_FSETPOS -#define PerlIO_setpos(f,p) fsetpos(f,p) -#endif - -#define PerlIO_rewind(f) rewind(f) -#define PerlIO_tmpfile() 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) setlinebuf(f); -#else -#define PerlIO_setlinebuf(f) setvbuf(f, Nullch, _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) FILE_ptr(f) -#define PerlIO_get_cnt(f) FILE_cnt(f) -#ifdef STDIO_CNT_LVALUE -#define PerlIO_canset_cnt(f) 1 -#define PerlIO_set_cnt(f,c) (FILE_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 {FILE_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 {FILE_ptr(f) = (p); assert(FILE_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 +/* Shouldn't be possible to get here, but if we did ... */ +#ifdef PERLIO_IS_STDIO -#ifdef FILE_base -#define PerlIO_has_base(f) 1 -#define PerlIO_get_base(f) FILE_base(f) -#define PerlIO_get_bufsiz(f) FILE_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 +# error "stdio is no longer supported as the default base layer -- use perlio." #endif /* PERLIO_IS_STDIO */ + +/* + * ex: set ts=8 sts=4 sw=4 et: + */