1 /*
2 +----------------------------------------------------------------------+
3 | Zend Engine |
4 +----------------------------------------------------------------------+
5 | Copyright (c) 1998-2016 Zend Technologies Ltd. (http://www.zend.com) |
6 +----------------------------------------------------------------------+
7 | This source file is subject to version 2.00 of the Zend license, |
8 | that is bundled with this package in the file LICENSE, and is |
9 | available through the world-wide-web at the following url: |
10 | http://www.zend.com/license/2_00.txt. |
11 | If you did not receive a copy of the Zend license and are unable to |
12 | obtain it through the world-wide-web, please send a note to |
13 | license@zend.com so we can mail you a copy immediately. |
14 +----------------------------------------------------------------------+
15 | Authors: Wez Furlong <wez@thebrainroom.com> |
16 | Scott MacVicar <scottmac@php.net> |
17 | Nuno Lopes <nlopess@php.net> |
18 | Marcus Boerger <helly@php.net> |
19 +----------------------------------------------------------------------+
20 */
21
22 /* $Id$ */
23
24 #ifndef ZEND_STREAM_H
25 #define ZEND_STREAM_H
26
27 /* Lightweight stream implementation for the ZE scanners.
28 * These functions are private to the engine.
29 * */
30 typedef size_t (*zend_stream_fsizer_t)(void* handle TSRMLS_DC);
31 typedef size_t (*zend_stream_reader_t)(void* handle, char *buf, size_t len TSRMLS_DC);
32 typedef void (*zend_stream_closer_t)(void* handle TSRMLS_DC);
33
34 #define ZEND_MMAP_AHEAD 32
35
36 typedef enum {
37 ZEND_HANDLE_FILENAME,
38 ZEND_HANDLE_FD,
39 ZEND_HANDLE_FP,
40 ZEND_HANDLE_STREAM,
41 ZEND_HANDLE_MAPPED
42 } zend_stream_type;
43
44 typedef struct _zend_mmap {
45 size_t len;
46 size_t pos;
47 void *map;
48 char *buf;
49 void *old_handle;
50 zend_stream_closer_t old_closer;
51 } zend_mmap;
52
53 typedef struct _zend_stream {
54 void *handle;
55 int isatty;
56 zend_mmap mmap;
57 zend_stream_reader_t reader;
58 zend_stream_fsizer_t fsizer;
59 zend_stream_closer_t closer;
60 } zend_stream;
61
62 typedef struct _zend_file_handle {
63 zend_stream_type type;
64 const char *filename;
65 char *opened_path;
66 union {
67 int fd;
68 FILE *fp;
69 zend_stream stream;
70 } handle;
71 zend_bool free_filename;
72 } zend_file_handle;
73
74 BEGIN_EXTERN_C()
75 ZEND_API int zend_stream_open(const char *filename, zend_file_handle *handle TSRMLS_DC);
76 ZEND_API int zend_stream_fixup(zend_file_handle *file_handle, char **buf, size_t *len TSRMLS_DC);
77 ZEND_API void zend_file_handle_dtor(zend_file_handle *fh TSRMLS_DC);
78 ZEND_API int zend_compare_file_handles(zend_file_handle *fh1, zend_file_handle *fh2);
79 END_EXTERN_C()
80
81 #endif