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[perl5.git] / perlsdio.h
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1/* perlsdio.h
2 *
663f364b 3 * Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001,
1129b882 4 * 2002, 2003, 2006, 2007, 2008 by Larry Wall and others
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5 *
6 * You may distribute under the terms of either the GNU General Public
7 * License or the Artistic License, as specified in the README file.
8 *
9 */
10
760ac839 11#ifdef PERLIO_IS_STDIO
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12
13#ifdef NETWARE
14 #include "nwstdio.h"
15#else
16
760ac839 17/*
76ced9ad 18 * This file #define-s the PerlIO_xxx abstraction onto stdio functions.
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19 * Make this as close to original stdio as possible.
20 */
76ced9ad 21#define PerlIO FILE
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22#define PerlIO_stderr() PerlSIO_stderr
23#define PerlIO_stdout() PerlSIO_stdout
24#define PerlIO_stdin() PerlSIO_stdin
760ac839 25
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26#define PerlIO_isutf8(f) 0
27
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28#define PerlIO_printf PerlSIO_printf
29#define PerlIO_stdoutf PerlSIO_stdoutf
30#define PerlIO_vprintf(f,fmt,a) PerlSIO_vprintf(f,fmt,a)
31#define PerlIO_write(f,buf,count) PerlSIO_fwrite(buf,1,count,f)
a15cef0c 32#define PerlIO_unread(f,buf,count) (-1)
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33#define PerlIO_open PerlSIO_fopen
34#define PerlIO_fdopen PerlSIO_fdopen
35#define PerlIO_reopen PerlSIO_freopen
36#define PerlIO_close(f) PerlSIO_fclose(f)
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37#define PerlIO_puts(f,s) PerlSIO_fputs(s,f)
38#define PerlIO_putc(f,c) PerlSIO_fputc(c,f)
04ce8649 39#if defined(__VMS)
486ec47a 40 /* Unusual definition of ungetc() here to accommodate fast_sv_gets()'
9607fc9c 41 * belief that it can mix getc/ungetc with reads from stdio buffer */
04ce8649 42START_EXTERN_C
9607fc9c 43 int decc$ungetc(int __c, FILE *__stream);
04ce8649 44END_EXTERN_C
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45# define PerlIO_ungetc(f,c) ((c) == EOF ? EOF : \
46 ((*(f) && !((*(f))->_flag & _IONBF) && \
47 ((*(f))->_ptr > (*(f))->_base)) ? \
48 ((*(f))->_cnt++, *(--(*(f))->_ptr) = (c)) : decc$ungetc(c,f)))
1ac5d68d 49#else
9b1753cf 50# define PerlIO_ungetc(f,c) PerlSIO_ungetc(c,f)
1ac5d68d 51#endif
04ce8649 52#define PerlIO_getc(f) PerlSIO_fgetc(f)
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53#define PerlIO_read(f,buf,count) (SSize_t)PerlSIO_fread(buf,1,count,f)
54#define PerlIO_tell(f) PerlSIO_ftell(f)
362d0d44 55#define PerlIO_eof(f) PerlSIO_feof(f)
a20bf0c3 56#define PerlIO_getname(f,b) fgetname(f,b)
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57#define PerlIO_error(f) PerlSIO_ferror(f)
58#define PerlIO_fileno(f) PerlSIO_fileno(f)
59#define PerlIO_clearerr(f) PerlSIO_clearerr(f)
60#define PerlIO_flush(f) PerlSIO_fflush(f)
04ce8649 61#define PerlIO_seek(f,o,w) PerlSIO_fseek(f,o,w)
760ac839 62
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63#define PerlIO_rewind(f) PerlSIO_rewind(f)
64#define PerlIO_tmpfile() PerlSIO_tmpfile()
760ac839 65
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66#define PerlIO_importFILE(f,fl) (f)
67#define PerlIO_exportFILE(f,fl) (f)
68#define PerlIO_findFILE(f) (f)
69#define PerlIO_releaseFILE(p,f) ((void) 0)
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70
71#ifdef HAS_SETLINEBUF
362d0d44 72#define PerlIO_setlinebuf(f) PerlSIO_setlinebuf(f);
760ac839 73#else
bd61b366 74#define PerlIO_setlinebuf(f) PerlSIO_setvbuf(f, NULL, _IOLBF, 0);
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75#endif
76
77/* Now our interface to Configure's FILE_xxx macros */
78
79#ifdef USE_STDIO_PTR
76ced9ad 80#define PerlIO_has_cntptr(f) 1
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81#define PerlIO_get_ptr(f) PerlSIO_get_ptr(f)
82#define PerlIO_get_cnt(f) PerlSIO_get_cnt(f)
760ac839 83
c7ae39e5 84#ifdef STDIO_CNT_LVALUE
76ced9ad 85#define PerlIO_canset_cnt(f) 1
362d0d44 86#define PerlIO_set_cnt(f,c) PerlSIO_set_cnt(f,c)
c7ae39e5 87#ifdef STDIO_PTR_LVALUE
a7ffa9b9 88#ifdef STDIO_PTR_LVAL_NOCHANGE_CNT
76ced9ad 89#define PerlIO_fast_gets(f) 1
760ac839 90#endif
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91#endif /* STDIO_PTR_LVALUE */
92#else /* STDIO_CNT_LVALUE */
76ced9ad 93#define PerlIO_canset_cnt(f) 0
a20bf0c3 94#define PerlIO_set_cnt(f,c) abort()
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95#endif
96
c7ae39e5 97#ifdef STDIO_PTR_LVALUE
a7ffa9b9 98#ifdef STDIO_PTR_LVAL_NOCHANGE_CNT
362d0d44 99#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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100#else
101#ifdef STDIO_PTR_LVAL_SETS_CNT
102/* assert() may pre-process to ""; potential syntax error (FILE_ptr(), ) */
362d0d44 103#define PerlIO_set_ptrcnt(f,p,c) STMT_START {PerlSIO_set_ptr(f,p); assert(PerlSIO_get_cnt(f) == (c));} STMT_END
76ced9ad 104#define PerlIO_fast_gets(f) 1
760ac839 105#else
a20bf0c3 106#define PerlIO_set_ptrcnt(f,p,c) abort()
760ac839 107#endif
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108#endif
109#endif
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110
111#else /* USE_STDIO_PTR */
112
113#define PerlIO_has_cntptr(f) 0
c7ae39e5 114#define PerlIO_canset_cnt(f) 0
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115#define PerlIO_get_cnt(f) (abort(),0)
116#define PerlIO_get_ptr(f) (abort(),(void *)0)
117#define PerlIO_set_cnt(f,c) abort()
118#define PerlIO_set_ptrcnt(f,p,c) abort()
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119
120#endif /* USE_STDIO_PTR */
121
122#ifndef PerlIO_fast_gets
76ced9ad 123#define PerlIO_fast_gets(f) 0
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124#endif
125
126
127#ifdef FILE_base
76ced9ad 128#define PerlIO_has_base(f) 1
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129#define PerlIO_get_base(f) PerlSIO_get_base(f)
130#define PerlIO_get_bufsiz(f) PerlSIO_get_bufsiz(f)
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131#else
132#define PerlIO_has_base(f) 0
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133#define PerlIO_get_base(f) (abort(),(void *)0)
134#define PerlIO_get_bufsiz(f) (abort(),0)
760ac839 135#endif
760ac839 136
afd1eb53 137#endif /* NETWARE */
760ac839 138#endif /* PERLIO_IS_STDIO */
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MHM
139
140/*
14d04a33 141 * ex: set ts=8 sts=4 sw=4 et:
e9a8c099 142 */