nextcloud-desktop/src/gui/folderwatcher_mac.cpp
Jocelyn Turcotte 4ad190a558 Use Qt logging categories for logging
This gives more insight about the logs and allow setting fine-tuned
logging rules. The categories are set to only output Info by default
so this allows us to provide more concise logging while keeping the
ability to extract more information for a specific category when
developping or debugging customer issues.

Issue #5647
2017-05-11 17:22:59 +02:00

118 lines
4 KiB
C++

/*
* Copyright (C) by Markus Goetz <markus@woboq.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* for more details.
*/
#include "config.h"
#include "folder.h"
#include "folderwatcher.h"
#include "folderwatcher_mac.h"
#include <cerrno>
#include <QStringList>
namespace OCC {
FolderWatcherPrivate::FolderWatcherPrivate(FolderWatcher *p, const QString& path)
: _parent(p),
_folder(path)
{
this->startWatching();
}
FolderWatcherPrivate::~FolderWatcherPrivate()
{
FSEventStreamStop(_stream);
FSEventStreamInvalidate(_stream);
FSEventStreamRelease(_stream);
}
static void callback(
ConstFSEventStreamRef streamRef,
void *clientCallBackInfo,
size_t numEvents,
void *eventPathsVoid,
const FSEventStreamEventFlags eventFlags[],
const FSEventStreamEventId eventIds[])
{
Q_UNUSED(streamRef)
Q_UNUSED(eventFlags)
Q_UNUSED(eventIds)
const FSEventStreamEventFlags c_interestingFlags
= kFSEventStreamEventFlagItemCreated // for new folder/file
| kFSEventStreamEventFlagItemRemoved // for rm
| kFSEventStreamEventFlagItemInodeMetaMod // for mtime change
| kFSEventStreamEventFlagItemRenamed // also coming for moves to trash in finder
| kFSEventStreamEventFlagItemModified; // for content change
//We ignore other flags, e.g. for owner change, xattr change, Finder label change etc
qCDebug(lcFolderWatcher) << "FolderWatcherPrivate::callback by OS X";
QStringList paths;
CFArrayRef eventPaths = (CFArrayRef)eventPathsVoid;
for (int i = 0; i < static_cast<int>(numEvents); ++i) {
CFStringRef path = reinterpret_cast<CFStringRef>(CFArrayGetValueAtIndex(eventPaths, i));
QString qstring;
CFIndex pathLength = CFStringGetLength(path);
qstring.resize(pathLength);
CFStringGetCharacters(path, CFRangeMake(0, pathLength), reinterpret_cast<UniChar *>(qstring.data()));
QString fn = qstring.normalized(QString::NormalizationForm_C);
if (!(eventFlags[i] & c_interestingFlags)) {
qCDebug(lcFolderWatcher) << "Ignoring non-content changes for" << fn;
continue;
}
paths.append(fn);
}
reinterpret_cast<FolderWatcherPrivate*>(clientCallBackInfo)->doNotifyParent(paths);
}
void FolderWatcherPrivate::startWatching()
{
qCDebug(lcFolderWatcher) << "FolderWatcherPrivate::startWatching()" << _folder;
CFStringRef folderCF = CFStringCreateWithCharacters(0, reinterpret_cast<const UniChar *>(_folder.unicode()),
_folder.length());
CFArrayRef pathsToWatch = CFStringCreateArrayBySeparatingStrings (NULL, folderCF, CFSTR(":"));
FSEventStreamContext ctx = {0, this, NULL, NULL, NULL};
// TODO: Add kFSEventStreamCreateFlagFileEvents ?
_stream = FSEventStreamCreate(NULL,
&callback,
&ctx,
pathsToWatch,
kFSEventStreamEventIdSinceNow,
0, // latency
kFSEventStreamCreateFlagUseCFTypes|kFSEventStreamCreateFlagFileEvents|kFSEventStreamCreateFlagIgnoreSelf
);
CFRelease(pathsToWatch);
FSEventStreamScheduleWithRunLoop(_stream, CFRunLoopGetCurrent(), kCFRunLoopDefaultMode);
FSEventStreamStart(_stream);
}
void FolderWatcherPrivate::doNotifyParent(const QStringList &paths) {
_parent->changeDetected(paths);
}
} // ns mirall