8 * This file #define-s the PerlIO_xxx abstraction onto stdio functions.
9 * Make this as close to original stdio as possible.
12 #define PerlIO_stderr() stderr
13 #define PerlIO_stdout() stdout
14 #define PerlIO_stdin() stdin
16 #define PerlIO_isutf8(f) 0
18 #define PerlIO_printf fprintf
19 #define PerlIO_stdoutf printf
20 #define PerlIO_vprintf(f,fmt,a) vfprintf(f,fmt,a)
21 #define PerlIO_write(f,buf,count) fwrite1(buf,1,count,f)
22 #define PerlIO_unread(f,buf,count) (-1)
23 #define PerlIO_open fopen
24 #define PerlIO_fdopen fdopen
25 #define PerlIO_reopen freopen
26 #define PerlIO_close(f) fclose(f)
27 #define PerlIO_puts(f,s) fputs(s,f)
28 #define PerlIO_putc(f,c) fputc(c,f)
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)))
39 # define PerlIO_ungetc(f,c) ungetc(c,f)
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
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))
49 # define PerlIO_tell(f) ftell(f)
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)
56 #define PerlIO_eof(f) feof(f)
57 #define PerlIO_getname(f,b) fgetname(f,b)
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)
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))
66 # define PerlIO_seek(f,o,w) fseek(f,o,w)
69 #define PerlIO_rewind(f) rewind(f)
70 #define PerlIO_tmpfile() tmpfile()
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)
78 #define PerlIO_setlinebuf(f) setlinebuf(f);
80 #define PerlIO_setlinebuf(f) setvbuf(f, Nullch, _IOLBF, 0);
83 /* Now our interface to Configure's FILE_xxx macros */
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)
90 #ifdef STDIO_CNT_LVALUE
91 #define PerlIO_canset_cnt(f) 1
92 #define PerlIO_set_cnt(f,c) (FILE_cnt(f) = (c))
93 #ifdef STDIO_PTR_LVALUE
94 #ifdef STDIO_PTR_LVAL_NOCHANGE_CNT
95 #define PerlIO_fast_gets(f) 1
97 #endif /* STDIO_PTR_LVALUE */
98 #else /* STDIO_CNT_LVALUE */
99 #define PerlIO_canset_cnt(f) 0
100 #define PerlIO_set_cnt(f,c) abort()
103 #ifdef STDIO_PTR_LVALUE
104 #ifdef STDIO_PTR_LVAL_NOCHANGE_CNT
105 #define PerlIO_set_ptrcnt(f,p,c) STMT_START {FILE_ptr(f) = (p), PerlIO_set_cnt(f,c);} STMT_END
107 #ifdef STDIO_PTR_LVAL_SETS_CNT
108 /* assert() may pre-process to ""; potential syntax error (FILE_ptr(), ) */
109 #define PerlIO_set_ptrcnt(f,p,c) STMT_START {FILE_ptr(f) = (p); assert(FILE_cnt(f) == (c));} STMT_END
110 #define PerlIO_fast_gets(f) 1
112 #define PerlIO_set_ptrcnt(f,p,c) abort()
117 #else /* USE_STDIO_PTR */
119 #define PerlIO_has_cntptr(f) 0
120 #define PerlIO_canset_cnt(f) 0
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()
126 #endif /* USE_STDIO_PTR */
128 #ifndef PerlIO_fast_gets
129 #define PerlIO_fast_gets(f) 0
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)
138 #define PerlIO_has_base(f) 0
139 #define PerlIO_get_base(f) (abort(),(void *)0)
140 #define PerlIO_get_bufsiz(f) (abort(),0)
144 #endif /* PERLIO_IS_STDIO */