qfilesystemwatcher_inotify.cpp

Absolute File Name:/home/qt/qt5_coco/qt5/qtbase/src/corelib/io/qfilesystemwatcher_inotify.cpp
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12QInotifyFileSystemWatcherEngine *QInotifyFileSystemWatcherEngine::create(QObject *parent)-
13{-
14 int fd = -1;-
15-
16 fd = inotify_init1(IN_CLOEXEC);-
17-
18 if (fd == -1) {-
19 fd = inotify_init();-
20 if (fd == -1)-
21 return 0;-
22 }-
23 return new QInotifyFileSystemWatcherEngine(fd, parent);-
24}-
25-
26QInotifyFileSystemWatcherEngine::QInotifyFileSystemWatcherEngine(int fd, QObject *parent)-
27 : QFileSystemWatcherEngine(parent),-
28 inotifyFd(fd),-
29 notifier(fd, QSocketNotifier::Read, this)-
30{-
31 fcntl(inotifyFd, 2, 1);-
32 connect(&notifier, qFlagLocation("2""activated(int)" "\0" __FILE__ ":" "242""249"), qFlagLocation("1""readFromInotify()" "\0" __FILE__ ":" "242""249"));-
33}-
34-
35QInotifyFileSystemWatcherEngine::~QInotifyFileSystemWatcherEngine()-
36{-
37 notifier.setEnabled(false);-
38 for (QForeachContainer<typename QtPrivate::remove_reference<decltype(pathToID)>::type> _container_((pathToID)); _container_.control && _container_.i != _container_.e; ++_container_.i, _container_.control ^= 1)for (int id = *_container_.i; _container_.control; _container_.control = 0): qAsConst(pathToID))-
39 inotify_rm_watch(inotifyFd, id < 0 ? -id : id);
executed 361 times by 9 tests: inotify_rm_watch(inotifyFd, id < 0 ? -id : id);
Executed by:
  • tst_QCompleter
  • tst_QFileDialog2
  • tst_QFileSystemModel
  • tst_QFileSystemWatcher
  • tst_QFiledialog
  • tst_QGraphicsProxyWidget
  • tst_QPrinter
  • tst_languageChange
  • tst_qfilesystemwatcher - unknown status
361
40-
41 ::close(inotifyFd);-
42}
executed 354 times by 11 tests: end of block
Executed by:
  • tst_QCompleter
  • tst_QFileDialog2
  • tst_QFileSystemModel
  • tst_QFileSystemWatcher
  • tst_QFiledialog
  • tst_QGraphicsProxyWidget
  • tst_QPrinter
  • tst_QSidebar
  • tst_languageChange
  • tst_qapplication - unknown status
  • tst_qfilesystemwatcher - unknown status
354
43-
44QStringList QInotifyFileSystemWatcherEngine::addPaths(const QStringList &paths,-
45 QStringList *files,-
46 QStringList *directories)-
47{-
48 QStringList p = paths;-
49 QMutableListIterator<QString> it(p);-
50 while (it.hasNext()
it.hasNext()Description
TRUEevaluated 478 times by 8 tests
Evaluated by:
  • tst_QCompleter
  • tst_QFileDialog2
  • tst_QFileSystemModel
  • tst_QFileSystemWatcher
  • tst_QFiledialog
  • tst_QGraphicsProxyWidget
  • tst_QPrinter
  • tst_languageChange
FALSEevaluated 476 times by 8 tests
Evaluated by:
  • tst_QCompleter
  • tst_QFileDialog2
  • tst_QFileSystemModel
  • tst_QFileSystemWatcher
  • tst_QFiledialog
  • tst_QGraphicsProxyWidget
  • tst_QPrinter
  • tst_languageChange
) {		476-478
51 QString path = it.next();-
52 QFileInfo fi(path);-
53 bool isDir = fi.isDir();-
54 if (isDir
isDirDescription
TRUEevaluated 442 times by 8 tests
Evaluated by:
  • tst_QCompleter
  • tst_QFileDialog2
  • tst_QFileSystemModel
  • tst_QFileSystemWatcher
  • tst_QFiledialog
  • tst_QGraphicsProxyWidget
  • tst_QPrinter
  • tst_languageChange
FALSEevaluated 36 times by 1 test
Evaluated by:
  • tst_QFileSystemWatcher
) {		36-442
55 if (directories->contains(path)
directories->contains(path)Description
TRUEevaluated 1 time by 1 test
Evaluated by:
  • tst_QFileSystemWatcher
FALSEevaluated 441 times by 8 tests
Evaluated by:
  • tst_QCompleter
  • tst_QFileDialog2
  • tst_QFileSystemModel
  • tst_QFileSystemWatcher
  • tst_QFiledialog
  • tst_QGraphicsProxyWidget
  • tst_QPrinter
  • tst_languageChange
)		1-441
56 continue;
executed 1 time by 1 test: continue;
Executed by:
  • tst_QFileSystemWatcher
1
57 }
executed 441 times by 8 tests: end of block
Executed by:
  • tst_QCompleter
  • tst_QFileDialog2
  • tst_QFileSystemModel
  • tst_QFileSystemWatcher
  • tst_QFiledialog
  • tst_QGraphicsProxyWidget
  • tst_QPrinter
  • tst_languageChange
 else {		441
58 if (files->contains(path)
files->contains(path)Description
TRUEnever evaluated
FALSEevaluated 36 times by 1 test
Evaluated by:
  • tst_QFileSystemWatcher
)		0-36
59 continue;
never executed: continue;
0
60 }
executed 36 times by 1 test: end of block
Executed by:
  • tst_QFileSystemWatcher
36
61-
62 int wd = inotify_add_watch(inotifyFd,-
63 QFile::encodeName(path),-
64 (isDir-
65 ? (0-
66 | 0x00000004-
67 | (0x00000040 | 0x00000080)-
68 | 0x00000100-
69 | 0x00000200-
70 | 0x00000400-
71 )-
72 : (0-
73 | 0x00000004-
74 | 0x00000002-
75 | (0x00000040 | 0x00000080)-
76 | 0x00000800-
77 | 0x00000400-
78 )));-
79 if (wd < 0
wd < 0Description
TRUEevaluated 2 times by 1 test
Evaluated by:
  • tst_QFileSystemWatcher
FALSEevaluated 475 times by 8 tests
Evaluated by:
  • tst_QCompleter
  • tst_QFileDialog2
  • tst_QFileSystemModel
  • tst_QFileSystemWatcher
  • tst_QFiledialog
  • tst_QGraphicsProxyWidget
  • tst_QPrinter
  • tst_languageChange
) {		2-475
80 perrorQMessageLogger("QInotifyFileSystemWatcherEngine::addPaths:__FILE__, 297, __PRETTY_FUNCTION__).warning().nospace() << inotify_add_watch"inotify_add_watch(" << path << failed");") failed: " << QSystemError((*__errno_location ()), QSystemError::NativeError).toString();-
81 continue;
executed 2 times by 1 test: continue;
Executed by:
  • tst_QFileSystemWatcher
2
82 }-
83-
84 it.remove();-
85-
86 int id = isDir
isDirDescription
TRUEevaluated 441 times by 8 tests
Evaluated by:
  • tst_QCompleter
  • tst_QFileDialog2
  • tst_QFileSystemModel
  • tst_QFileSystemWatcher
  • tst_QFiledialog
  • tst_QGraphicsProxyWidget
  • tst_QPrinter
  • tst_languageChange
FALSEevaluated 34 times by 1 test
Evaluated by:
  • tst_QFileSystemWatcher
 ? -wd : wd;		34-441
87 if (id < 0
id < 0Description
TRUEevaluated 441 times by 8 tests
Evaluated by:
  • tst_QCompleter
  • tst_QFileDialog2
  • tst_QFileSystemModel
  • tst_QFileSystemWatcher
  • tst_QFiledialog
  • tst_QGraphicsProxyWidget
  • tst_QPrinter
  • tst_languageChange
FALSEevaluated 34 times by 1 test
Evaluated by:
  • tst_QFileSystemWatcher
) {		34-441
88 directories->append(path);-
89 }
executed 441 times by 8 tests: end of block
Executed by:
  • tst_QCompleter
  • tst_QFileDialog2
  • tst_QFileSystemModel
  • tst_QFileSystemWatcher
  • tst_QFiledialog
  • tst_QGraphicsProxyWidget
  • tst_QPrinter
  • tst_languageChange
 else {		441
90 files->append(path);-
91 }
executed 34 times by 1 test: end of block
Executed by:
  • tst_QFileSystemWatcher
34
92-
93 pathToID.insert(path, id);-
94 idToPath.insert(id, path);-
95 }
executed 475 times by 8 tests: end of block
Executed by:
  • tst_QCompleter
  • tst_QFileDialog2
  • tst_QFileSystemModel
  • tst_QFileSystemWatcher
  • tst_QFiledialog
  • tst_QGraphicsProxyWidget
  • tst_QPrinter
  • tst_languageChange
475
96-
97 return
executed 476 times by 8 tests: return p;
Executed by:
  • tst_QCompleter
  • tst_QFileDialog2
  • tst_QFileSystemModel
  • tst_QFileSystemWatcher
  • tst_QFiledialog
  • tst_QGraphicsProxyWidget
  • tst_QPrinter
  • tst_languageChange
 p;
executed 476 times by 8 tests: return p;
Executed by:
  • tst_QCompleter
  • tst_QFileDialog2
  • tst_QFileSystemModel
  • tst_QFileSystemWatcher
  • tst_QFiledialog
  • tst_QGraphicsProxyWidget
  • tst_QPrinter
  • tst_languageChange
476
98}-
99-
100QStringList QInotifyFileSystemWatcherEngine::removePaths(const QStringList &paths,-
101 QStringList *files,-
102 QStringList *directories)-
103{-
104 QStringList p = paths;-
105 QMutableListIterator<QString> it(p);-
106 while (it.hasNext()) {-
107 QString path = it.next();-
108 int id = pathToID.take(path);-
109 QString x = idToPath.take(id);-
110 if (x.isEmpty() || x != path)-
111 continue;-
112-
113 int wd = id < 0 ? -id : id;-
114-
115 inotify_rm_watch(inotifyFd, wd);-
116-
117 it.remove();-
118 if (id < 0) {-
119 directories->removeAll(path);-
120 } else {-
121 files->removeAll(path);-
122 }-
123 }-
124-
125 return p;-
126}-
127-
128void QInotifyFileSystemWatcherEngine::readFromInotify()-
129{-
130-
131-
132 int buffSize = 0;-
133 ioctl(inotifyFd, 0x541B, (char *) &buffSize);-
134 QVarLengthArray<char, 4096> buffer(buffSize);-
135 buffSize = read(inotifyFd, buffer.data(), buffSize);-
136 char *at = buffer.data();-
137 char * const end = at + buffSize;-
138-
139 QHash<int, inotify_event *> eventForId;-
140 while (at < end) {-
141 inotify_event *event = reinterpret_cast<inotify_event *>(at);-
142-
143 if (eventForId.contains(event->wd))-
144 eventForId[event->wd]->mask |= event->mask;-
145 else-
146 eventForId.insert(event->wd, event);-
147-
148 at += sizeof(inotify_event) + event->len;-
149 }-
150-
151 QHash<int, inotify_event *>::const_iterator it = eventForId.constBegin();-
152 while (it != eventForId.constEnd()) {-
153 const inotify_event &event = **it;-
154 ++it;-
155-
156-
157-
158 int id = event.wd;-
159 QString path = getPathFromID(id);-
160 if (path.isEmpty()) {-
161-
162 id = -id;-
163 path = getPathFromID(id);-
164 if (path.isEmpty())-
165 continue;-
166 }-
167-
168-
169-
170 if ((event.mask & (0x00000400 | 0x00000800 | 0x00002000)) != 0) {-
171 pathToID.remove(path);-
172 idToPath.remove(id, getPathFromID(id));-
173 if (!idToPath.contains(id))-
174 inotify_rm_watch(inotifyFd, event.wd);-
175-
176 if (id < 0)-
177 directoryChanged(path, true);-
178 else-
179 fileChanged(path, true);-
180 } else {-
181 if (id < 0)-
182 directoryChanged(path, false);-
183 else-
184 fileChanged(path, false);-
185 }-
186 }-
187}-
188-
189QString QInotifyFileSystemWatcherEngine::getPathFromID(int id) const-
190{-
191 QHash<int, QString>::const_iterator i = idToPath.find(id);-
192 while (i != idToPath.constEnd() && i.key() == id) {-
193 if ((i + 1) == idToPath.constEnd() || (i + 1).key() != id) {-
194 return i.value();-
195 }-
196 ++i;-
197 }-
198 return QString();-
199}-
200-
201-
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