Warning: That file was not part of the compilation database. It may have many parsing errors.
1 | /**************************************************************************** |
---|---|
2 | ** |
3 | ** Copyright (C) 2016 The Qt Company Ltd. |
4 | ** Contact: https://www.qt.io/licensing/ |
5 | ** |
6 | ** This file is part of the QtCore module of the Qt Toolkit. |
7 | ** |
8 | ** $QT_BEGIN_LICENSE:LGPL$ |
9 | ** Commercial License Usage |
10 | ** Licensees holding valid commercial Qt licenses may use this file in |
11 | ** accordance with the commercial license agreement provided with the |
12 | ** Software or, alternatively, in accordance with the terms contained in |
13 | ** a written agreement between you and The Qt Company. For licensing terms |
14 | ** and conditions see https://www.qt.io/terms-conditions. For further |
15 | ** information use the contact form at https://www.qt.io/contact-us. |
16 | ** |
17 | ** GNU Lesser General Public License Usage |
18 | ** Alternatively, this file may be used under the terms of the GNU Lesser |
19 | ** General Public License version 3 as published by the Free Software |
20 | ** Foundation and appearing in the file LICENSE.LGPL3 included in the |
21 | ** packaging of this file. Please review the following information to |
22 | ** ensure the GNU Lesser General Public License version 3 requirements |
23 | ** will be met: https://www.gnu.org/licenses/lgpl-3.0.html. |
24 | ** |
25 | ** GNU General Public License Usage |
26 | ** Alternatively, this file may be used under the terms of the GNU |
27 | ** General Public License version 2.0 or (at your option) the GNU General |
28 | ** Public license version 3 or any later version approved by the KDE Free |
29 | ** Qt Foundation. The licenses are as published by the Free Software |
30 | ** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3 |
31 | ** included in the packaging of this file. Please review the following |
32 | ** information to ensure the GNU General Public License requirements will |
33 | ** be met: https://www.gnu.org/licenses/gpl-2.0.html and |
34 | ** https://www.gnu.org/licenses/gpl-3.0.html. |
35 | ** |
36 | ** $QT_END_LICENSE$ |
37 | ** |
38 | ****************************************************************************/ |
39 | |
40 | #ifndef QFILESYSTEMWATCHER_FSEVENTS_P_H |
41 | #define QFILESYSTEMWATCHER_FSEVENTS_P_H |
42 | |
43 | // |
44 | // W A R N I N G |
45 | // ------------- |
46 | // |
47 | // This file is not part of the Qt API. It exists purely as an |
48 | // implementation detail. This header file may change from version to |
49 | // version without notice, or even be removed. |
50 | // |
51 | // We mean it. |
52 | // |
53 | |
54 | #include "qfilesystemwatcher_p.h" |
55 | |
56 | #include <QtCore/qmutex.h> |
57 | #include <QtCore/qhash.h> |
58 | #include <QtCore/qthread.h> |
59 | #include <QtCore/qvector.h> |
60 | #include <QtCore/qsocketnotifier.h> |
61 | |
62 | #include <dispatch/dispatch.h> |
63 | #include <CoreServices/CoreServices.h> |
64 | |
65 | QT_REQUIRE_CONFIG(filesystemwatcher); |
66 | |
67 | QT_BEGIN_NAMESPACE |
68 | |
69 | class QFseventsFileSystemWatcherEngine : public QFileSystemWatcherEngine |
70 | { |
71 | Q_OBJECT |
72 | public: |
73 | ~QFseventsFileSystemWatcherEngine(); |
74 | |
75 | static QFseventsFileSystemWatcherEngine *create(QObject *parent); |
76 | |
77 | QStringList addPaths(const QStringList &paths, QStringList *files, QStringList *directories); |
78 | QStringList removePaths(const QStringList &paths, QStringList *files, QStringList *directories); |
79 | |
80 | void processEvent(ConstFSEventStreamRef streamRef, size_t numEvents, char **eventPaths, const FSEventStreamEventFlags eventFlags[], const FSEventStreamEventId eventIds[]); |
81 | |
82 | Q_SIGNALS: |
83 | void emitFileChanged(const QString &path, bool removed); |
84 | void emitDirectoryChanged(const QString &path, bool removed); |
85 | void scheduleStreamRestart(); |
86 | |
87 | private slots: |
88 | void doEmitFileChanged(const QString &path, bool removed); |
89 | void doEmitDirectoryChanged(const QString &path, bool removed); |
90 | bool restartStream(); |
91 | |
92 | private: |
93 | struct Info { |
94 | QString origPath; |
95 | timespec ctime; |
96 | mode_t mode; |
97 | QString watchedPath; |
98 | |
99 | Info(): mode(0) |
100 | { |
101 | ctime.tv_sec = 0; |
102 | ctime.tv_nsec = 0; |
103 | } |
104 | |
105 | Info(const QString &origPath, const timespec &ctime, mode_t mode, const QString &watchedPath) |
106 | : origPath(origPath) |
107 | , ctime(ctime) |
108 | , mode(mode) |
109 | , watchedPath(watchedPath) |
110 | {} |
111 | }; |
112 | typedef QHash<QString, Info> InfoByName; |
113 | typedef QHash<QString, InfoByName> FilesByPath; |
114 | struct DirInfo { |
115 | Info dirInfo; |
116 | InfoByName entries; |
117 | }; |
118 | typedef QHash<QString, DirInfo> DirsByName; |
119 | typedef QHash<QString, qint64> PathRefCounts; |
120 | |
121 | struct WatchingState { |
122 | // These fields go hand-in-hand. FSEvents watches paths, and there is no use in watching |
123 | // the same path multiple times. So, the "refcount" on a path is the number of watched |
124 | // files that have the same path, plus the number of directories that have the same path. |
125 | // |
126 | // If the stream fails to start after adding files/directories, the watcher will try to |
127 | // keep watching files/directories that it was already watching. It does that by restoring |
128 | // the previous WatchingState and restarting the stream. |
129 | FilesByPath watchedFiles; |
130 | DirsByName watchedDirectories; |
131 | PathRefCounts watchedPaths; |
132 | }; |
133 | |
134 | QFseventsFileSystemWatcherEngine(QObject *parent); |
135 | bool startStream(); |
136 | void stopStream(bool isStopped = false); |
137 | InfoByName scanForDirEntries(const QString &path); |
138 | bool derefPath(const QString &watchedPath); |
139 | bool checkDir(DirsByName::iterator &it); |
140 | bool rescanDirs(const QString &path); |
141 | bool rescanFiles(InfoByName &filesInPath); |
142 | bool rescanFiles(const QString &path); |
143 | |
144 | QMutex lock; |
145 | dispatch_queue_t queue; |
146 | FSEventStreamRef stream; |
147 | FSEventStreamEventId lastReceivedEvent; |
148 | WatchingState watchingState; |
149 | }; |
150 | |
151 | QT_END_NAMESPACE |
152 | |
153 | #endif // QFILESYSTEMWATCHER_FSEVENTS_P_H |
154 |
Warning: That file was not part of the compilation database. It may have many parsing errors.