Tristan Matthews | 0a329cc | 2013-07-17 13:20:14 -0400 | [diff] [blame] | 1 | /* $Id$ */ |
| 2 | /* |
| 3 | * Copyright (C) 2008-2009 Teluu Inc. (http://www.teluu.com) |
| 4 | * Copyright (C) 2003-2008 Benny Prijono <benny@prijono.org> |
| 5 | * |
| 6 | * This program is free software; you can redistribute it and/or modify |
| 7 | * it under the terms of the GNU General Public License as published by |
| 8 | * the Free Software Foundation; either version 2 of the License, or |
| 9 | * (at your option) any later version. |
| 10 | * |
| 11 | * This program is distributed in the hope that it will be useful, |
| 12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 14 | * GNU General Public License for more details. |
| 15 | * |
| 16 | * You should have received a copy of the GNU General Public License |
| 17 | * along with this program; if not, write to the Free Software |
| 18 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| 19 | */ |
| 20 | #ifndef __PJPP_FILE_HPP__ |
| 21 | #define __PJPP_FILE_HPP__ |
| 22 | |
| 23 | #include <pj/file_io.h> |
| 24 | #include <pj/file_access.h> |
| 25 | #include <pj++/types.hpp> |
| 26 | #include <pj++/pool.hpp> |
| 27 | |
| 28 | // |
| 29 | // File API. |
| 30 | // |
| 31 | class Pj_File_API |
| 32 | { |
| 33 | public: |
| 34 | // |
| 35 | // Check file existance. |
| 36 | // |
| 37 | static bool file_exists(const char *filename) |
| 38 | { |
| 39 | return pj_file_exists(filename) != 0; |
| 40 | } |
| 41 | |
| 42 | // |
| 43 | // Get file size. |
| 44 | // |
| 45 | static pj_off_t file_size(const char *filename) |
| 46 | { |
| 47 | return pj_file_size(filename); |
| 48 | } |
| 49 | |
| 50 | // |
| 51 | // Delete file. |
| 52 | // |
| 53 | static pj_status_t file_delete(const char *filename) |
| 54 | { |
| 55 | return pj_file_delete(filename); |
| 56 | } |
| 57 | |
| 58 | // |
| 59 | // Move/rename file. |
| 60 | // |
| 61 | static pj_status_t file_move(const char *oldname, const char *newname) |
| 62 | { |
| 63 | return pj_file_move(oldname, newname); |
| 64 | } |
| 65 | |
| 66 | // |
| 67 | // Get stat. |
| 68 | // |
| 69 | static pj_status_t file_stat(const char *filename, pj_file_stat *buf) |
| 70 | { |
| 71 | return pj_file_getstat(filename, buf); |
| 72 | } |
| 73 | }; |
| 74 | |
| 75 | |
| 76 | // |
| 77 | // File. |
| 78 | // |
| 79 | class Pj_File : public Pj_Object |
| 80 | { |
| 81 | public: |
| 82 | // |
| 83 | // Offset type to be used in setpos. |
| 84 | // |
| 85 | enum Offset_Type |
| 86 | { |
| 87 | PJ_SEEK_SET = PJ_SEEK_SET, |
| 88 | PJ_SEEK_CUR = PJ_SEEK_CUR, |
| 89 | PJ_SEEK_END = PJ_SEEK_END, |
| 90 | }; |
| 91 | |
| 92 | // |
| 93 | // Default constructor. |
| 94 | // |
| 95 | Pj_File() |
| 96 | : hnd_(0) |
| 97 | { |
| 98 | } |
| 99 | |
| 100 | // |
| 101 | // Construct and open a file. |
| 102 | // |
| 103 | Pj_File(Pj_Pool *pool, const char *filename, |
| 104 | unsigned access = PJ_O_RDONLY) |
| 105 | : hnd_(NULL) |
| 106 | { |
| 107 | open(pool, filename, access); |
| 108 | } |
| 109 | |
| 110 | // |
| 111 | // Destructor closes the file. |
| 112 | // |
| 113 | ~Pj_File() |
| 114 | { |
| 115 | close(); |
| 116 | } |
| 117 | |
| 118 | // |
| 119 | // Open a file. |
| 120 | // |
| 121 | pj_status_t open(Pj_Pool *pool, const char *filename, |
| 122 | unsigned access = PJ_O_RDONLY ) |
| 123 | { |
| 124 | close(); |
| 125 | return pj_file_open(pool->pool_(), filename, access, &hnd_); |
| 126 | } |
| 127 | |
| 128 | // |
| 129 | // Close a file. |
| 130 | // |
| 131 | void close() |
| 132 | { |
| 133 | if (hnd_ != 0) { |
| 134 | pj_file_close(hnd_); |
| 135 | hnd_ = 0; |
| 136 | } |
| 137 | } |
| 138 | |
| 139 | // |
| 140 | // Write data. |
| 141 | // |
| 142 | pj_ssize_t write(const void *buff, pj_size_t size) |
| 143 | { |
| 144 | pj_ssize_t bytes = size; |
| 145 | if (pj_file_write(hnd_, buff, &bytes) != PJ_SUCCESS) |
| 146 | return -1; |
| 147 | return bytes; |
| 148 | } |
| 149 | |
| 150 | // |
| 151 | // Read data. |
| 152 | // |
| 153 | pj_ssize_t read(void *buf, pj_size_t size) |
| 154 | { |
| 155 | pj_ssize_t bytes = size; |
| 156 | if (pj_file_read(hnd_, buf, &bytes) != PJ_SUCCESS) |
| 157 | return -1; |
| 158 | return bytes; |
| 159 | } |
| 160 | |
| 161 | // |
| 162 | // Set file position. |
| 163 | // |
| 164 | pj_status_t setpos(pj_off_t offset, Offset_Type whence) |
| 165 | { |
| 166 | return pj_file_setpos(hnd_, offset, |
| 167 | (enum pj_file_seek_type)whence); |
| 168 | } |
| 169 | |
| 170 | // |
| 171 | // Get file position. |
| 172 | // |
| 173 | pj_off_t getpos() |
| 174 | { |
| 175 | pj_off_t pos; |
| 176 | if (pj_file_getpos(hnd_, &pos) != PJ_SUCCESS) |
| 177 | return -1; |
| 178 | return pos; |
| 179 | } |
| 180 | |
| 181 | private: |
| 182 | pj_oshandle_t hnd_; |
| 183 | }; |
| 184 | |
| 185 | |
| 186 | |
| 187 | #endif /* __PJPP_FILE_HPP__ */ |
| 188 | |