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 #include <sys/types.h>
28 #include <sys/stat.h>
29
30 /* Lightweight stream implementation for the ZE scanners.
31 * These functions are private to the engine.
32 * */
33 typedef size_t (*zend_stream_fsizer_t)(void* handle);
34 typedef size_t (*zend_stream_reader_t)(void* handle, char *buf, size_t len);
35 typedef void (*zend_stream_closer_t)(void* handle);
36
37 #define ZEND_MMAP_AHEAD 32
38
39 typedef enum {
40 ZEND_HANDLE_FILENAME,
41 ZEND_HANDLE_FD,
42 ZEND_HANDLE_FP,
43 ZEND_HANDLE_STREAM,
44 ZEND_HANDLE_MAPPED
45 } zend_stream_type;
46
47 typedef struct _zend_mmap {
48 size_t len;
49 size_t pos;
50 void *map;
51 char *buf;
52 void *old_handle;
53 zend_stream_closer_t old_closer;
54 } zend_mmap;
55
56 typedef struct _zend_stream {
57 void *handle;
58 int isatty;
59 zend_mmap mmap;
60 zend_stream_reader_t reader;
61 zend_stream_fsizer_t fsizer;
62 zend_stream_closer_t closer;
63 } zend_stream;
64
65 typedef struct _zend_file_handle {
66 union {
67 int fd;
68 FILE *fp;
69 zend_stream stream;
70 } handle;
71 const char *filename;
72 zend_string *opened_path;
73 zend_stream_type type;
74 zend_bool free_filename;
75 } zend_file_handle;
76
77 BEGIN_EXTERN_C()
78 ZEND_API int zend_stream_open(const char *filename, zend_file_handle *handle);
79 ZEND_API int zend_stream_fixup(zend_file_handle *file_handle, char **buf, size_t *len);
80 ZEND_API void zend_file_handle_dtor(zend_file_handle *fh);
81 ZEND_API int zend_compare_file_handles(zend_file_handle *fh1, zend_file_handle *fh2);
82 END_EXTERN_C()
83
84 #ifdef _WIN64
85 # define zend_fseek _fseeki64
86 # define zend_ftell _ftelli64
87 # define zend_lseek _lseeki64
88 # define zend_fstat _fstat64
89 # define zend_stat _stat64
90 typedef struct __stat64 zend_stat_t;
91 #else
92 # define zend_fseek fseek
93 # define zend_ftell ftell
94 # define zend_lseek lseek
95 # define zend_fstat fstat
96 # define zend_stat stat
97 typedef struct stat zend_stat_t;
98 #endif
99
100 #endif