3 * Copyright (c) 1997-2002, Larry Wall
5 * You may distribute under the terms of either the GNU General Public
6 * License or the Artistic License, as specified in the README file.
10 #ifdef PERLIO_IS_STDIO
17 * This file #define-s the PerlIO_xxx abstraction onto stdio functions.
18 * Make this as close to original stdio as possible.
21 #define PerlIO_stderr() PerlSIO_stderr
22 #define PerlIO_stdout() PerlSIO_stdout
23 #define PerlIO_stdin() PerlSIO_stdin
25 #define PerlIO_isutf8(f) 0
27 #define PerlIO_printf PerlSIO_printf
28 #define PerlIO_stdoutf PerlSIO_stdoutf
29 #define PerlIO_vprintf(f,fmt,a) PerlSIO_vprintf(f,fmt,a)
30 #define PerlIO_write(f,buf,count) PerlSIO_fwrite(buf,1,count,f)
31 #define PerlIO_unread(f,buf,count) (-1)
32 #define PerlIO_open PerlSIO_fopen
33 #define PerlIO_fdopen PerlSIO_fdopen
34 #define PerlIO_reopen PerlSIO_freopen
35 #define PerlIO_close(f) PerlSIO_fclose(f)
36 #define PerlIO_puts(f,s) PerlSIO_fputs(f,s)
37 #define PerlIO_putc(f,c) PerlSIO_fputc(f,c)
40 /* Unusual definition of ungetc() here to accomodate fast_sv_gets()'
41 * belief that it can mix getc/ungetc with reads from stdio buffer */
42 int decc$ungetc(int __c, FILE *__stream);
43 # define PerlIO_ungetc(f,c) ((c) == EOF ? EOF : \
44 ((*(f) && !((*(f))->_flag & _IONBF) && \
45 ((*(f))->_ptr > (*(f))->_base)) ? \
46 ((*(f))->_cnt++, *(--(*(f))->_ptr) = (c)) : decc$ungetc(c,f)))
48 # define PerlIO_ungetc(f,c) ungetc(c,f)
50 /* Work around bug in DECCRTL/AXP (DECC v5.x) and some versions of old
51 * VAXCRTL which causes read from a pipe after EOF has been returned
54 # define PerlIO_getc(f) \
55 (feof(f) ? EOF : getc(f))
56 # define PerlIO_read(f,buf,count) \
57 (feof(f) ? 0 : (SSize_t)fread(buf,1,count,f))
58 # define PerlIO_tell(f) ftell(f)
60 # define PerlIO_getc(f) PerlSIO_fgetc(f)
61 # define PerlIO_ungetc(f,c) PerlSIO_ungetc(c,f)
62 # define PerlIO_read(f,buf,count) (SSize_t)PerlSIO_fread(buf,1,count,f)
63 # define PerlIO_tell(f) PerlSIO_ftell(f)
65 #define PerlIO_eof(f) PerlSIO_feof(f)
66 #define PerlIO_getname(f,b) fgetname(f,b)
67 #define PerlIO_error(f) PerlSIO_ferror(f)
68 #define PerlIO_fileno(f) PerlSIO_fileno(f)
69 #define PerlIO_clearerr(f) PerlSIO_clearerr(f)
70 #define PerlIO_flush(f) PerlSIO_fflush(f)
71 #if defined(VMS) && !defined(__DECC)
72 /* Old VAXC RTL doesn't reset EOF on seek; Perl folk seem to expect this */
73 #define PerlIO_seek(f,o,w) (((f) && (*f) && ((*f)->_flag &= ~_IOEOF)),fseek(f,o,w))
75 # define PerlIO_seek(f,o,w) PerlSIO_fseek(f,o,w)
78 #define PerlIO_rewind(f) PerlSIO_rewind(f)
79 #define PerlIO_tmpfile() PerlSIO_tmpfile()
81 #define PerlIO_importFILE(f,fl) (f)
82 #define PerlIO_exportFILE(f,fl) (f)
83 #define PerlIO_findFILE(f) (f)
84 #define PerlIO_releaseFILE(p,f) ((void) 0)
87 #define PerlIO_setlinebuf(f) PerlSIO_setlinebuf(f);
89 #define PerlIO_setlinebuf(f) PerlSIO_setvbuf(f, Nullch, _IOLBF, 0);
92 /* Now our interface to Configure's FILE_xxx macros */
95 #define PerlIO_has_cntptr(f) 1
96 #define PerlIO_get_ptr(f) PerlSIO_get_ptr(f)
97 #define PerlIO_get_cnt(f) PerlSIO_get_cnt(f)
99 #ifdef STDIO_CNT_LVALUE
100 #define PerlIO_canset_cnt(f) 1
101 #define PerlIO_set_cnt(f,c) PerlSIO_set_cnt(f,c)
102 #ifdef STDIO_PTR_LVALUE
103 #ifdef STDIO_PTR_LVAL_NOCHANGE_CNT
104 #define PerlIO_fast_gets(f) 1
106 #endif /* STDIO_PTR_LVALUE */
107 #else /* STDIO_CNT_LVALUE */
108 #define PerlIO_canset_cnt(f) 0
109 #define PerlIO_set_cnt(f,c) abort()
112 #ifdef STDIO_PTR_LVALUE
113 #ifdef STDIO_PTR_LVAL_NOCHANGE_CNT
114 #define PerlIO_set_ptrcnt(f,p,c) STMT_START {PerlSIO_set_ptr(f,p), PerlIO_set_cnt(f,c);} STMT_END
116 #ifdef STDIO_PTR_LVAL_SETS_CNT
117 /* assert() may pre-process to ""; potential syntax error (FILE_ptr(), ) */
118 #define PerlIO_set_ptrcnt(f,p,c) STMT_START {PerlSIO_set_ptr(f,p); assert(PerlSIO_get_cnt(f) == (c));} STMT_END
119 #define PerlIO_fast_gets(f) 1
121 #define PerlIO_set_ptrcnt(f,p,c) abort()
126 #else /* USE_STDIO_PTR */
128 #define PerlIO_has_cntptr(f) 0
129 #define PerlIO_canset_cnt(f) 0
130 #define PerlIO_get_cnt(f) (abort(),0)
131 #define PerlIO_get_ptr(f) (abort(),(void *)0)
132 #define PerlIO_set_cnt(f,c) abort()
133 #define PerlIO_set_ptrcnt(f,p,c) abort()
135 #endif /* USE_STDIO_PTR */
137 #ifndef PerlIO_fast_gets
138 #define PerlIO_fast_gets(f) 0
143 #define PerlIO_has_base(f) 1
144 #define PerlIO_get_base(f) PerlSIO_get_base(f)
145 #define PerlIO_get_bufsiz(f) PerlSIO_get_bufsiz(f)
147 #define PerlIO_has_base(f) 0
148 #define PerlIO_get_base(f) (abort(),(void *)0)
149 #define PerlIO_get_bufsiz(f) (abort(),0)
153 #endif /* PERLIO_IS_STDIO */