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[perl5.git] / perlsdio.h
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760ac839 1#ifdef PERLIO_IS_STDIO
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2
3#ifdef NETWARE
4 #include "nwstdio.h"
5#else
6
760ac839 7/*
76ced9ad 8 * This file #define-s the PerlIO_xxx abstraction onto stdio functions.
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9 * Make this as close to original stdio as possible.
10 */
76ced9ad 11#define PerlIO FILE
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12#define PerlIO_stderr() stderr
13#define PerlIO_stdout() stdout
14#define PerlIO_stdin() stdin
15
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16#define PerlIO_isutf8(f) 0
17
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18#define PerlIO_printf fprintf
19#define PerlIO_stdoutf printf
76ced9ad 20#define PerlIO_vprintf(f,fmt,a) vfprintf(f,fmt,a)
760ac839 21#define PerlIO_write(f,buf,count) fwrite1(buf,1,count,f)
a15cef0c 22#define PerlIO_unread(f,buf,count) (-1)
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23#define PerlIO_open fopen
24#define PerlIO_fdopen fdopen
76ced9ad 25#define PerlIO_reopen freopen
cf829ab0 26#define PerlIO_close(f) fclose(f)
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27#define PerlIO_puts(f,s) fputs(s,f)
28#define PerlIO_putc(f,c) fputc(c,f)
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29#if defined(VMS)
30# if defined(__DECC)
31 /* Unusual definition of ungetc() here to accomodate fast_sv_gets()'
32 * belief that it can mix getc/ungetc with reads from stdio buffer */
33 int decc$ungetc(int __c, FILE *__stream);
34# define PerlIO_ungetc(f,c) ((c) == EOF ? EOF : \
35 ((*(f) && !((*(f))->_flag & _IONBF) && \
36 ((*(f))->_ptr > (*(f))->_base)) ? \
37 ((*(f))->_cnt++, *(--(*(f))->_ptr) = (c)) : decc$ungetc(c,f)))
38# else
39# define PerlIO_ungetc(f,c) ungetc(c,f)
40# endif
41 /* Work around bug in DECCRTL/AXP (DECC v5.x) and some versions of old
42 * VAXCRTL which causes read from a pipe after EOF has been returned
43 * once to hang.
aa689395 44 */
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45# define PerlIO_getc(f) \
46 (feof(f) ? EOF : getc(f))
47# define PerlIO_read(f,buf,count) \
48 (feof(f) ? 0 : (SSize_t)fread(buf,1,count,f))
bf348c40 49# define PerlIO_tell(f) ftell(f)
1ac5d68d 50#else
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51# define PerlIO_getc(f) getc(f)
52# define PerlIO_ungetc(f,c) ungetc(c,f)
53# define PerlIO_read(f,buf,count) (SSize_t)fread(buf,1,count,f)
54# define PerlIO_tell(f) ftell(f)
1ac5d68d 55#endif
760ac839 56#define PerlIO_eof(f) feof(f)
a20bf0c3 57#define PerlIO_getname(f,b) fgetname(f,b)
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58#define PerlIO_error(f) ferror(f)
59#define PerlIO_fileno(f) fileno(f)
60#define PerlIO_clearerr(f) clearerr(f)
61#define PerlIO_flush(f) Fflush(f)
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62#if defined(VMS) && !defined(__DECC)
63/* Old VAXC RTL doesn't reset EOF on seek; Perl folk seem to expect this */
64#define PerlIO_seek(f,o,w) (((f) && (*f) && ((*f)->_flag &= ~_IOEOF)),fseek(f,o,w))
fab3f3a7 65#else
cf829ab0 66# define PerlIO_seek(f,o,w) fseek(f,o,w)
17f28c40 67#endif
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68
69#define PerlIO_rewind(f) rewind(f)
70#define PerlIO_tmpfile() tmpfile()
71
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72#define PerlIO_importFILE(f,fl) (f)
73#define PerlIO_exportFILE(f,fl) (f)
74#define PerlIO_findFILE(f) (f)
75#define PerlIO_releaseFILE(p,f) ((void) 0)
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76
77#ifdef HAS_SETLINEBUF
78#define PerlIO_setlinebuf(f) setlinebuf(f);
79#else
4fabb596 80#define PerlIO_setlinebuf(f) setvbuf(f, Nullch, _IOLBF, 0);
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81#endif
82
83/* Now our interface to Configure's FILE_xxx macros */
84
85#ifdef USE_STDIO_PTR
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86#define PerlIO_has_cntptr(f) 1
87#define PerlIO_get_ptr(f) FILE_ptr(f)
88#define PerlIO_get_cnt(f) FILE_cnt(f)
760ac839 89
c7ae39e5 90#ifdef STDIO_CNT_LVALUE
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91#define PerlIO_canset_cnt(f) 1
92#define PerlIO_set_cnt(f,c) (FILE_cnt(f) = (c))
c7ae39e5 93#ifdef STDIO_PTR_LVALUE
a7ffa9b9 94#ifdef STDIO_PTR_LVAL_NOCHANGE_CNT
76ced9ad 95#define PerlIO_fast_gets(f) 1
760ac839 96#endif
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97#endif /* STDIO_PTR_LVALUE */
98#else /* STDIO_CNT_LVALUE */
76ced9ad 99#define PerlIO_canset_cnt(f) 0
a20bf0c3 100#define PerlIO_set_cnt(f,c) abort()
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101#endif
102
c7ae39e5 103#ifdef STDIO_PTR_LVALUE
a7ffa9b9 104#ifdef STDIO_PTR_LVAL_NOCHANGE_CNT
bd0e0981 105#define PerlIO_set_ptrcnt(f,p,c) STMT_START {FILE_ptr(f) = (p), PerlIO_set_cnt(f,c);} STMT_END
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106#else
107#ifdef STDIO_PTR_LVAL_SETS_CNT
108/* assert() may pre-process to ""; potential syntax error (FILE_ptr(), ) */
bd0e0981 109#define PerlIO_set_ptrcnt(f,p,c) STMT_START {FILE_ptr(f) = (p); assert(FILE_cnt(f) == (c));} STMT_END
76ced9ad 110#define PerlIO_fast_gets(f) 1
760ac839 111#else
a20bf0c3 112#define PerlIO_set_ptrcnt(f,p,c) abort()
760ac839 113#endif
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114#endif
115#endif
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116
117#else /* USE_STDIO_PTR */
118
119#define PerlIO_has_cntptr(f) 0
c7ae39e5 120#define PerlIO_canset_cnt(f) 0
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121#define PerlIO_get_cnt(f) (abort(),0)
122#define PerlIO_get_ptr(f) (abort(),(void *)0)
123#define PerlIO_set_cnt(f,c) abort()
124#define PerlIO_set_ptrcnt(f,p,c) abort()
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125
126#endif /* USE_STDIO_PTR */
127
128#ifndef PerlIO_fast_gets
76ced9ad 129#define PerlIO_fast_gets(f) 0
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130#endif
131
132
133#ifdef FILE_base
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134#define PerlIO_has_base(f) 1
135#define PerlIO_get_base(f) FILE_base(f)
136#define PerlIO_get_bufsiz(f) FILE_bufsiz(f)
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137#else
138#define PerlIO_has_base(f) 0
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139#define PerlIO_get_base(f) (abort(),(void *)0)
140#define PerlIO_get_bufsiz(f) (abort(),0)
760ac839 141#endif
760ac839 142
afd1eb53 143#endif /* NETWARE */
760ac839 144#endif /* PERLIO_IS_STDIO */