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