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76ced9ad NIS |
1 | #ifndef _PERLIOL_H |
2 | #define _PERLIOL_H | |
3 | ||
fcf2db38 NIS |
4 | typedef struct |
5 | { | |
6 | PerlIO_funcs *funcs; | |
7 | SV *arg; | |
8 | } PerlIO_pair_t; | |
9 | ||
10 | typedef struct | |
11 | { | |
12 | IV refcnt; | |
13 | IV cur; | |
14 | IV len; | |
15 | PerlIO_pair_t *array; | |
16 | } PerlIO_list_t; | |
17 | ||
76ced9ad NIS |
18 | struct _PerlIO_funcs |
19 | { | |
20 | char * name; | |
21 | Size_t size; | |
22 | IV kind; | |
e3f3bf95 | 23 | IV (*Pushed)(PerlIO *f,const char *mode,SV *arg); |
76ced9ad | 24 | IV (*Popped)(PerlIO *f); |
e3f3bf95 | 25 | PerlIO * (*Open)(pTHX_ PerlIO_funcs *tab, |
fcf2db38 | 26 | PerlIO_list_t *layers, IV n, |
e3f3bf95 NIS |
27 | const char *mode, |
28 | int fd, int imode, int perm, | |
29 | PerlIO *old, | |
30 | int narg, SV **args); | |
31 | SV * (*Getarg)(PerlIO *f); | |
32 | IV (*Fileno)(PerlIO *f); | |
76ced9ad NIS |
33 | /* Unix-like functions - cf sfio line disciplines */ |
34 | SSize_t (*Read)(PerlIO *f, void *vbuf, Size_t count); | |
35 | SSize_t (*Unread)(PerlIO *f, const void *vbuf, Size_t count); | |
36 | SSize_t (*Write)(PerlIO *f, const void *vbuf, Size_t count); | |
37 | IV (*Seek)(PerlIO *f, Off_t offset, int whence); | |
38 | Off_t (*Tell)(PerlIO *f); | |
39 | IV (*Close)(PerlIO *f); | |
40 | /* Stdio-like buffered IO functions */ | |
41 | IV (*Flush)(PerlIO *f); | |
42 | IV (*Fill)(PerlIO *f); | |
43 | IV (*Eof)(PerlIO *f); | |
44 | IV (*Error)(PerlIO *f); | |
45 | void (*Clearerr)(PerlIO *f); | |
46 | void (*Setlinebuf)(PerlIO *f); | |
47 | /* Perl's snooping functions */ | |
48 | STDCHAR * (*Get_base)(PerlIO *f); | |
49 | Size_t (*Get_bufsiz)(PerlIO *f); | |
50 | STDCHAR * (*Get_ptr)(PerlIO *f); | |
51 | SSize_t (*Get_cnt)(PerlIO *f); | |
52 | void (*Set_ptrcnt)(PerlIO *f,STDCHAR *ptr,SSize_t cnt); | |
53 | }; | |
54 | ||
f5b9d040 NIS |
55 | /*--------------------------------------------------------------------------------------*/ |
56 | /* Kind values */ | |
5e2ab84b NIS |
57 | #define PERLIO_K_RAW 0x00000001 |
58 | #define PERLIO_K_BUFFERED 0x00000002 | |
f5b9d040 | 59 | #define PERLIO_K_CANCRLF 0x00000004 |
5e2ab84b | 60 | #define PERLIO_K_FASTGETS 0x00000008 |
dfebf958 | 61 | #define PERLIO_K_DUMMY 0x00000010 |
26fb694e | 62 | #define PERLIO_K_UTF8 0x00008000 |
13621cfb | 63 | #define PERLIO_K_DESTRUCT 0x00010000 |
f5b9d040 NIS |
64 | |
65 | /*--------------------------------------------------------------------------------------*/ | |
76ced9ad NIS |
66 | struct _PerlIO |
67 | { | |
68 | PerlIOl * next; /* Lower layer */ | |
69 | PerlIO_funcs * tab; /* Functions for this layer */ | |
70 | IV flags; /* Various flags for state */ | |
71 | }; | |
72 | ||
73 | /*--------------------------------------------------------------------------------------*/ | |
74 | ||
75 | /* Flag values */ | |
5e2ab84b NIS |
76 | #define PERLIO_F_EOF 0x00000100 |
77 | #define PERLIO_F_CANWRITE 0x00000200 | |
78 | #define PERLIO_F_CANREAD 0x00000400 | |
79 | #define PERLIO_F_ERROR 0x00000800 | |
80 | #define PERLIO_F_TRUNCATE 0x00001000 | |
81 | #define PERLIO_F_APPEND 0x00002000 | |
82 | #define PERLIO_F_CRLF 0x00004000 | |
83 | #define PERLIO_F_UTF8 0x00008000 | |
84 | #define PERLIO_F_UNBUF 0x00010000 | |
85 | #define PERLIO_F_WRBUF 0x00020000 | |
86 | #define PERLIO_F_RDBUF 0x00040000 | |
87 | #define PERLIO_F_LINEBUF 0x00080000 | |
88 | #define PERLIO_F_TEMP 0x00100000 | |
89 | #define PERLIO_F_OPEN 0x00200000 | |
90 | #define PERLIO_F_FASTGETS 0x00400000 | |
a9c883f6 | 91 | #define PERLIO_F_TTY 0x00800000 |
76ced9ad NIS |
92 | |
93 | #define PerlIOBase(f) (*(f)) | |
94 | #define PerlIOSelf(f,type) ((type *)PerlIOBase(f)) | |
95 | #define PerlIONext(f) (&(PerlIOBase(f)->next)) | |
96 | ||
97 | /*--------------------------------------------------------------------------------------*/ | |
26fb694e NIS |
98 | /* Data exports - EXT rather than extern is needed for Cygwin */ |
99 | EXT PerlIO_funcs PerlIO_unix; | |
100 | EXT PerlIO_funcs PerlIO_perlio; | |
101 | EXT PerlIO_funcs PerlIO_stdio; | |
102 | EXT PerlIO_funcs PerlIO_crlf; | |
103 | EXT PerlIO_funcs PerlIO_utf8; | |
104 | EXT PerlIO_funcs PerlIO_byte; | |
105 | EXT PerlIO_funcs PerlIO_raw; | |
7ea3cd40 | 106 | EXT PerlIO_funcs PerlIO_pending; |
76ced9ad | 107 | #ifdef HAS_MMAP |
26fb694e | 108 | EXT PerlIO_funcs PerlIO_mmap; |
76ced9ad | 109 | #endif |
0c4128ad NIS |
110 | #ifdef WIN32 |
111 | EXT PerlIO_funcs PerlIO_win32; | |
112 | #endif | |
5f1a76d0 | 113 | extern PerlIO *PerlIO_allocate(pTHX); |
fcf2db38 NIS |
114 | extern SV *PerlIO_arg_fetch(PerlIO_list_t *av,IV n); |
115 | #define PerlIOArg PerlIO_arg_fetch(layers,n) | |
76ced9ad | 116 | |
f5b9d040 NIS |
117 | #if O_BINARY != O_TEXT |
118 | #define PERLIO_STDTEXT "t" | |
119 | #else | |
120 | #define PERLIO_STDTEXT "" | |
121 | #endif | |
122 | ||
76ced9ad NIS |
123 | /*--------------------------------------------------------------------------------------*/ |
124 | /* Generic, or stub layer functions */ | |
125 | ||
126 | extern IV PerlIOBase_fileno (PerlIO *f); | |
e3f3bf95 | 127 | extern IV PerlIOBase_pushed (PerlIO *f, const char *mode,SV *arg); |
76ced9ad | 128 | extern IV PerlIOBase_popped (PerlIO *f); |
f6c77cf1 | 129 | extern SSize_t PerlIOBase_read (PerlIO *f, void *vbuf, Size_t count); |
76ced9ad NIS |
130 | extern SSize_t PerlIOBase_unread (PerlIO *f, const void *vbuf, Size_t count); |
131 | extern IV PerlIOBase_eof (PerlIO *f); | |
132 | extern IV PerlIOBase_error (PerlIO *f); | |
133 | extern void PerlIOBase_clearerr (PerlIO *f); | |
76ced9ad NIS |
134 | extern IV PerlIOBase_close (PerlIO *f); |
135 | extern void PerlIOBase_setlinebuf(PerlIO *f); | |
a9c883f6 | 136 | extern void PerlIOBase_flush_linebuf(void); |
76ced9ad NIS |
137 | |
138 | extern IV PerlIOBase_noop_ok (PerlIO *f); | |
139 | extern IV PerlIOBase_noop_fail (PerlIO *f); | |
140 | ||
141 | /*--------------------------------------------------------------------------------------*/ | |
142 | /* perlio buffer layer | |
143 | As this is reasonably generic its struct and "methods" are declared here | |
144 | so they can be used to "inherit" from it. | |
145 | */ | |
146 | ||
147 | typedef struct | |
148 | { | |
149 | struct _PerlIO base; /* Base "class" info */ | |
150 | STDCHAR * buf; /* Start of buffer */ | |
151 | STDCHAR * end; /* End of valid part of buffer */ | |
152 | STDCHAR * ptr; /* Current position in buffer */ | |
153 | Off_t posn; /* Offset of buf into the file */ | |
154 | Size_t bufsiz; /* Real size of buffer */ | |
155 | IV oneword; /* Emergency buffer */ | |
156 | } PerlIOBuf; | |
157 | ||
fcf2db38 | 158 | extern PerlIO * PerlIOBuf_open (pTHX_ PerlIO_funcs *self, PerlIO_list_t *layers, IV n, const char *mode, int fd, int imode, int perm, PerlIO *old, int narg, SV **args); |
e3f3bf95 | 159 | extern IV PerlIOBuf_pushed (PerlIO *f, const char *mode,SV *arg); |
76ced9ad NIS |
160 | extern SSize_t PerlIOBuf_read (PerlIO *f, void *vbuf, Size_t count); |
161 | extern SSize_t PerlIOBuf_unread (PerlIO *f, const void *vbuf, Size_t count); | |
162 | extern SSize_t PerlIOBuf_write (PerlIO *f, const void *vbuf, Size_t count); | |
163 | extern IV PerlIOBuf_seek (PerlIO *f, Off_t offset, int whence); | |
164 | extern Off_t PerlIOBuf_tell (PerlIO *f); | |
165 | extern IV PerlIOBuf_close (PerlIO *f); | |
166 | extern IV PerlIOBuf_flush (PerlIO *f); | |
167 | extern IV PerlIOBuf_fill (PerlIO *f); | |
76ced9ad NIS |
168 | extern STDCHAR *PerlIOBuf_get_base (PerlIO *f); |
169 | extern Size_t PerlIOBuf_bufsiz (PerlIO *f); | |
170 | extern STDCHAR *PerlIOBuf_get_ptr (PerlIO *f); | |
171 | extern SSize_t PerlIOBuf_get_cnt (PerlIO *f); | |
172 | extern void PerlIOBuf_set_ptrcnt (PerlIO *f, STDCHAR *ptr, SSize_t cnt); | |
173 | ||
0c4128ad NIS |
174 | extern int PerlIOUnix_oflags (const char *mode); |
175 | ||
76ced9ad NIS |
176 | /*--------------------------------------------------------------------------------------*/ |
177 | ||
178 | #endif /* _PERLIOL_H */ |