Rev 3 | Rev 13 | Go to most recent revision | Details | Compare with Previous | Last modification | View Log | RSS feed
Rev | Author | Line No. | Line |
---|---|---|---|
3 | luk | 1 | |
2 | /// inotify C++ interface implementation |
||
3 | /** |
||
4 | * \file inotify-cxx.cpp |
||
5 | * |
||
6 | * inotify C++ interface |
||
7 | * |
||
8 | * Copyright (C) 2006 Lukas Jelinek <lukas@aiken.cz> |
||
9 | * |
||
10 | * This program is free software; you can redistribute it and/or |
||
11 | * modify it under the terms of one of the following licenses: |
||
12 | * |
||
13 | * \li 1. X11-style license (see LICENSE-X11) |
||
14 | * \li 2. GNU Lesser General Public License, version 2.1 (see LICENSE-LGPL) |
||
15 | * \li 3. GNU General Public License, version 2 (see LICENSE-GPL) |
||
16 | * |
||
17 | * If you want to help with choosing the best license for you, |
||
18 | * please visit http://www.gnu.org/licenses/license-list.html. |
||
19 | * |
||
20 | */ |
||
21 | |||
22 | |||
23 | #include <errno.h> |
||
24 | #include <unistd.h> |
||
25 | |||
26 | #include "inotify-cxx.h" |
||
27 | |||
28 | #define DUMP_SEP \ |
||
29 | ({ \ |
||
30 | if (!rStr.empty()) { \ |
||
11 | luk | 31 | rStr.append(","); \ |
3 | luk | 32 | } \ |
33 | }) |
||
34 | |||
11 | luk | 35 | uint32_t InotifyEvent::GetMaskByName(const std::string& rName) |
36 | { |
||
37 | if (rName == "IN_ACCESS") |
||
38 | return IN_ACCESS; |
||
39 | else if (rName == "IN_MODIFY") |
||
40 | return IN_MODIFY; |
||
41 | else if (rName == "IN_ATTRIB") |
||
42 | return IN_ATTRIB; |
||
43 | else if (rName == "IN_CLOSE_WRITE") |
||
44 | return IN_CLOSE_WRITE; |
||
45 | else if (rName == "IN_CLOSE_NOWRITE") |
||
46 | return IN_CLOSE_NOWRITE; |
||
47 | else if (rName == "IN_MOVED_FROM") |
||
48 | return IN_MOVED_FROM; |
||
49 | else if (rName == "IN_MOVED_TO") |
||
50 | return IN_MOVED_TO; |
||
51 | else if (rName == "IN_CREATE") |
||
52 | return IN_CREATE; |
||
53 | else if (rName == "IN_DELETE") |
||
54 | return IN_DELETE; |
||
55 | else if (rName == "IN_DELETE_SELF") |
||
56 | return IN_DELETE_SELF; |
||
57 | else if (rName == "IN_UNMOUNT") |
||
58 | return IN_UNMOUNT; |
||
59 | else if (rName == "IN_Q_OVERFLOW") |
||
60 | return IN_Q_OVERFLOW; |
||
61 | else if (rName == "IN_IGNORED") |
||
62 | return IN_IGNORED; |
||
63 | else if (rName == "IN_CLOSE") |
||
64 | return IN_CLOSE; |
||
65 | else if (rName == "IN_MOVE") |
||
66 | return IN_MOVE; |
||
67 | else if (rName == "IN_ISDIR") |
||
68 | return IN_ISDIR; |
||
69 | else if (rName == "IN_ONESHOT") |
||
70 | return IN_ONESHOT; |
||
71 | else if (rName == "IN_ALL_EVENTS") |
||
72 | return IN_ALL_EVENTS; |
||
73 | |||
74 | return (uint32_t) 0; |
||
75 | } |
||
3 | luk | 76 | |
11 | luk | 77 | void InotifyEvent::DumpTypes(uint32_t uValue, std::string& rStr) |
3 | luk | 78 | { |
79 | rStr = ""; |
||
80 | |||
11 | luk | 81 | if (IsType(uValue, IN_ALL_EVENTS)) { |
82 | rStr.append("IN_ALL_EVENTS"); |
||
3 | luk | 83 | } |
11 | luk | 84 | else { |
85 | if (IsType(uValue, IN_ACCESS)) { |
||
86 | DUMP_SEP; |
||
87 | rStr.append("IN_ACCESS"); |
||
88 | } |
||
89 | if (IsType(uValue, IN_MODIFY)) { |
||
90 | DUMP_SEP; |
||
91 | rStr.append("IN_MODIFY"); |
||
92 | } |
||
93 | if (IsType(uValue, IN_ATTRIB)) { |
||
94 | DUMP_SEP; |
||
95 | rStr.append("IN_ATTRIB"); |
||
96 | } |
||
97 | if (IsType(uValue, IN_CREATE)) { |
||
98 | DUMP_SEP; |
||
99 | rStr.append("IN_CREATE"); |
||
100 | } |
||
101 | if (IsType(uValue, IN_DELETE)) { |
||
102 | DUMP_SEP; |
||
103 | rStr.append("IN_DELETE"); |
||
104 | } |
||
105 | if (IsType(uValue, IN_DELETE_SELF)) { |
||
106 | DUMP_SEP; |
||
107 | rStr.append("IN_DELETE_SELF"); |
||
108 | } |
||
109 | if (IsType(uValue, IN_OPEN)) { |
||
110 | DUMP_SEP; |
||
111 | rStr.append("IN_OPEN"); |
||
112 | } |
||
113 | if (IsType(uValue, IN_CLOSE)) { |
||
114 | DUMP_SEP; |
||
115 | rStr.append("IN_CLOSE"); |
||
116 | } |
||
117 | else { |
||
118 | if (IsType(uValue, IN_CLOSE_WRITE)) { |
||
119 | DUMP_SEP; |
||
120 | rStr.append("IN_CLOSE_WRITE"); |
||
121 | } |
||
122 | if (IsType(uValue, IN_CLOSE_NOWRITE)) { |
||
123 | DUMP_SEP; |
||
124 | rStr.append("IN_CLOSE_NOWRITE"); |
||
125 | } |
||
126 | } |
||
127 | if (IsType(uValue, IN_MOVE)) { |
||
128 | DUMP_SEP; |
||
129 | rStr.append("IN_MOVE"); |
||
130 | } |
||
131 | else { |
||
132 | if (IsType(uValue, IN_MOVED_FROM)) { |
||
133 | DUMP_SEP; |
||
134 | rStr.append("IN_MOVED_FROM"); |
||
135 | } |
||
136 | if (IsType(uValue, IN_MOVED_TO)) { |
||
137 | DUMP_SEP; |
||
138 | rStr.append("IN_MOVED_TO"); |
||
139 | } |
||
140 | } |
||
3 | luk | 141 | } |
11 | luk | 142 | if (IsType(uValue, IN_UNMOUNT)) { |
3 | luk | 143 | DUMP_SEP; |
144 | rStr.append("IN_UNMOUNT"); |
||
145 | } |
||
11 | luk | 146 | if (IsType(uValue, IN_Q_OVERFLOW)) { |
3 | luk | 147 | DUMP_SEP; |
148 | rStr.append("IN_Q_OVERFLOW"); |
||
149 | } |
||
11 | luk | 150 | if (IsType(uValue, IN_IGNORED)) { |
3 | luk | 151 | DUMP_SEP; |
152 | rStr.append("IN_IGNORED"); |
||
153 | } |
||
11 | luk | 154 | if (IsType(uValue, IN_ISDIR)) { |
3 | luk | 155 | DUMP_SEP; |
156 | rStr.append("IN_ISDIR"); |
||
157 | } |
||
11 | luk | 158 | if (IsType(uValue, IN_ONESHOT)) { |
3 | luk | 159 | DUMP_SEP; |
160 | rStr.append("IN_ONESHOT"); |
||
161 | } |
||
162 | } |
||
163 | |||
11 | luk | 164 | void InotifyEvent::DumpTypes(std::string& rStr) const |
165 | { |
||
166 | DumpTypes((uint32_t) m_evt.mask, rStr); |
||
167 | } |
||
3 | luk | 168 | |
11 | luk | 169 | |
3 | luk | 170 | Inotify::Inotify() |
171 | { |
||
172 | m_fd = inotify_init(); |
||
173 | } |
||
174 | |||
175 | Inotify::~Inotify() |
||
176 | { |
||
177 | Close(); |
||
178 | } |
||
179 | |||
180 | void Inotify::Close() |
||
181 | { |
||
182 | if (m_fd != -1) { |
||
183 | RemoveAll(); |
||
184 | close(m_fd); |
||
185 | m_fd = -1; |
||
186 | } |
||
187 | } |
||
188 | |||
189 | bool Inotify::Add(InotifyWatch* pWatch) |
||
190 | { |
||
191 | if (m_fd == -1) |
||
192 | return false; |
||
193 | |||
194 | pWatch->m_wd = inotify_add_watch(m_fd, pWatch->GetPath().c_str(), pWatch->GetMask()); |
||
195 | if (pWatch->m_wd != -1) { |
||
196 | m_watches.insert(IN_WATCH_MAP::value_type(pWatch->m_wd, pWatch)); |
||
11 | luk | 197 | pWatch->m_pInotify = this; |
3 | luk | 198 | return true; |
199 | } |
||
200 | |||
201 | return false; |
||
202 | } |
||
203 | |||
204 | void Inotify::Remove(InotifyWatch* pWatch) |
||
205 | { |
||
206 | if (m_fd == -1) |
||
207 | return; |
||
208 | |||
209 | if (inotify_rm_watch(m_fd, pWatch->GetMask()) != -1) { |
||
210 | m_watches.erase(pWatch->m_wd); |
||
211 | pWatch->m_wd = -1; |
||
11 | luk | 212 | pWatch->m_pInotify = NULL; |
3 | luk | 213 | } |
214 | } |
||
215 | |||
216 | void Inotify::RemoveAll() |
||
217 | { |
||
218 | IN_WATCH_MAP::iterator it = m_watches.begin(); |
||
219 | while (it != m_watches.end()) { |
||
11 | luk | 220 | InotifyWatch* pW = (*it).second; |
221 | inotify_rm_watch(m_fd, pW->GetMask()); |
||
222 | pW->m_wd = -1; |
||
223 | pW->m_pInotify = NULL; |
||
3 | luk | 224 | it++; |
225 | } |
||
226 | |||
227 | m_watches.clear(); |
||
228 | } |
||
229 | |||
230 | bool Inotify::WaitForEvents(bool fNoIntr) |
||
231 | { |
||
232 | ssize_t len = 0; |
||
233 | |||
234 | do { |
||
235 | len = read(m_fd, m_buf, INOTIFY_BUFLEN); |
||
236 | } while (fNoIntr && len == -1 && errno == EINTR); |
||
237 | |||
238 | if (len <= 0) { |
||
239 | return false; |
||
240 | } |
||
241 | |||
242 | ssize_t i = 0; |
||
243 | while (i < len) { |
||
11 | luk | 244 | InotifyWatch* pW = FindWatch(((struct inotify_event *) &m_buf[i])->wd); |
245 | InotifyEvent evt((struct inotify_event *) &m_buf[i], pW); |
||
3 | luk | 246 | m_events.push_back(evt); |
247 | i += INOTIFY_EVENT_SIZE + (int) evt.GetLength(); |
||
248 | } |
||
249 | |||
250 | return true; |
||
251 | } |
||
252 | |||
253 | int Inotify::GetEventCount() |
||
254 | { |
||
255 | return m_events.size(); |
||
256 | } |
||
257 | |||
258 | bool Inotify::GetEvent(InotifyEvent* pEvt) |
||
259 | { |
||
260 | bool b = PeekEvent(pEvt); |
||
261 | if (b) |
||
262 | m_events.pop_front(); |
||
263 | return b; |
||
264 | } |
||
265 | |||
266 | bool Inotify::PeekEvent(InotifyEvent* pEvt) |
||
267 | { |
||
268 | if (pEvt == NULL || m_events.empty()) |
||
269 | return false; |
||
270 | |||
271 | *pEvt = m_events.front(); |
||
272 | |||
273 | return true; |
||
274 | } |
||
275 | |||
276 | InotifyWatch* Inotify::FindWatch(int iDescriptor) |
||
277 | { |
||
278 | IN_WATCH_MAP::iterator it = m_watches.find(iDescriptor); |
||
279 | if (it == m_watches.end()) |
||
280 | return NULL; |
||
281 | |||
282 | return (*it).second; |
||
283 | } |
||
284 |