9 IV (*Fileno)(PerlIO *f);
10 PerlIO * (*Fdopen)(PerlIO_funcs *tab, int fd, const char *mode);
11 PerlIO * (*Open)(PerlIO_funcs *tab, const char *path, const char *mode);
12 int (*Reopen)(const char *path, const char *mode, PerlIO *f);
13 IV (*Pushed)(PerlIO *f,const char *mode);
14 IV (*Popped)(PerlIO *f);
15 /* Unix-like functions - cf sfio line disciplines */
16 SSize_t (*Read)(PerlIO *f, void *vbuf, Size_t count);
17 SSize_t (*Unread)(PerlIO *f, const void *vbuf, Size_t count);
18 SSize_t (*Write)(PerlIO *f, const void *vbuf, Size_t count);
19 IV (*Seek)(PerlIO *f, Off_t offset, int whence);
20 Off_t (*Tell)(PerlIO *f);
21 IV (*Close)(PerlIO *f);
22 /* Stdio-like buffered IO functions */
23 IV (*Flush)(PerlIO *f);
24 IV (*Fill)(PerlIO *f);
26 IV (*Error)(PerlIO *f);
27 void (*Clearerr)(PerlIO *f);
28 void (*Setlinebuf)(PerlIO *f);
29 /* Perl's snooping functions */
30 STDCHAR * (*Get_base)(PerlIO *f);
31 Size_t (*Get_bufsiz)(PerlIO *f);
32 STDCHAR * (*Get_ptr)(PerlIO *f);
33 SSize_t (*Get_cnt)(PerlIO *f);
34 void (*Set_ptrcnt)(PerlIO *f,STDCHAR *ptr,SSize_t cnt);
37 /*--------------------------------------------------------------------------------------*/
39 #define PERLIO_K_RAW 0x00000001
40 #define PERLIO_K_BUFFERED 0x00000002
41 #define PERLIO_K_CANCRLF 0x00000004
42 #define PERLIO_K_FASTGETS 0x00000008
44 /*--------------------------------------------------------------------------------------*/
47 PerlIOl * next; /* Lower layer */
48 PerlIO_funcs * tab; /* Functions for this layer */
49 IV flags; /* Various flags for state */
52 /*--------------------------------------------------------------------------------------*/
55 #define PERLIO_F_EOF 0x00000100
56 #define PERLIO_F_CANWRITE 0x00000200
57 #define PERLIO_F_CANREAD 0x00000400
58 #define PERLIO_F_ERROR 0x00000800
59 #define PERLIO_F_TRUNCATE 0x00001000
60 #define PERLIO_F_APPEND 0x00002000
61 #define PERLIO_F_CRLF 0x00004000
62 #define PERLIO_F_UTF8 0x00008000
63 #define PERLIO_F_UNBUF 0x00010000
64 #define PERLIO_F_WRBUF 0x00020000
65 #define PERLIO_F_RDBUF 0x00040000
66 #define PERLIO_F_LINEBUF 0x00080000
67 #define PERLIO_F_TEMP 0x00100000
68 #define PERLIO_F_OPEN 0x00200000
69 #define PERLIO_F_FASTGETS 0x00400000
71 #define PerlIOBase(f) (*(f))
72 #define PerlIOSelf(f,type) ((type *)PerlIOBase(f))
73 #define PerlIONext(f) (&(PerlIOBase(f)->next))
75 /*--------------------------------------------------------------------------------------*/
77 extern PerlIO_funcs PerlIO_unix;
78 extern PerlIO_funcs PerlIO_perlio;
79 extern PerlIO_funcs PerlIO_stdio;
80 extern PerlIO_funcs PerlIO_crlf;
82 extern PerlIO_funcs PerlIO_mmap;
85 extern PerlIO *PerlIO_allocate(void);
87 #if O_BINARY != O_TEXT
88 #define PERLIO_STDTEXT "t"
90 #define PERLIO_STDTEXT ""
93 /*--------------------------------------------------------------------------------------*/
94 /* Generic, or stub layer functions */
96 extern IV PerlIOBase_fileno (PerlIO *f);
97 extern IV PerlIOBase_pushed (PerlIO *f, const char *mode);
98 extern IV PerlIOBase_popped (PerlIO *f);
99 extern SSize_t PerlIOBase_unread (PerlIO *f, const void *vbuf, Size_t count);
100 extern IV PerlIOBase_eof (PerlIO *f);
101 extern IV PerlIOBase_error (PerlIO *f);
102 extern void PerlIOBase_clearerr (PerlIO *f);
103 extern IV PerlIOBase_flush (PerlIO *f);
104 extern IV PerlIOBase_fill (PerlIO *f);
105 extern IV PerlIOBase_close (PerlIO *f);
106 extern void PerlIOBase_setlinebuf(PerlIO *f);
108 extern IV PerlIOBase_noop_ok (PerlIO *f);
109 extern IV PerlIOBase_noop_fail (PerlIO *f);
111 /*--------------------------------------------------------------------------------------*/
112 /* perlio buffer layer
113 As this is reasonably generic its struct and "methods" are declared here
114 so they can be used to "inherit" from it.
119 struct _PerlIO base; /* Base "class" info */
120 STDCHAR * buf; /* Start of buffer */
121 STDCHAR * end; /* End of valid part of buffer */
122 STDCHAR * ptr; /* Current position in buffer */
123 Off_t posn; /* Offset of buf into the file */
124 Size_t bufsiz; /* Real size of buffer */
125 IV oneword; /* Emergency buffer */
128 extern PerlIO * PerlIOBuf_fdopen (PerlIO_funcs *self, int fd, const char *mode);
129 extern PerlIO * PerlIOBuf_open (PerlIO_funcs *self, const char *path, const char *mode);
130 extern int PerlIOBuf_reopen (const char *path, const char *mode, PerlIO *f);
131 extern SSize_t PerlIOBuf_read (PerlIO *f, void *vbuf, Size_t count);
132 extern SSize_t PerlIOBuf_unread (PerlIO *f, const void *vbuf, Size_t count);
133 extern SSize_t PerlIOBuf_write (PerlIO *f, const void *vbuf, Size_t count);
134 extern IV PerlIOBuf_seek (PerlIO *f, Off_t offset, int whence);
135 extern Off_t PerlIOBuf_tell (PerlIO *f);
136 extern IV PerlIOBuf_close (PerlIO *f);
137 extern IV PerlIOBuf_flush (PerlIO *f);
138 extern IV PerlIOBuf_fill (PerlIO *f);
139 extern void PerlIOBuf_setlinebuf (PerlIO *f);
140 extern STDCHAR *PerlIOBuf_get_base (PerlIO *f);
141 extern Size_t PerlIOBuf_bufsiz (PerlIO *f);
142 extern STDCHAR *PerlIOBuf_get_ptr (PerlIO *f);
143 extern SSize_t PerlIOBuf_get_cnt (PerlIO *f);
144 extern void PerlIOBuf_set_ptrcnt (PerlIO *f, STDCHAR *ptr, SSize_t cnt);
146 /*--------------------------------------------------------------------------------------*/
148 #endif /* _PERLIOL_H */