Funkwhale/Clementine-audio-player-Mac-Linux-Windows
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Postpone FSEvent stream updates to avoid churn when adding large numbers of directories.

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This commit is contained in:
John Maguire 2012-03-06 12:53:20 +01:00
parent c0f905a478
commit 5ddf9bcf41
2 changed files with 16 additions and 4 deletions
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7
src/core/macfslistener.h
View File

@ -22,6 +22,7 @@
#include <QObject>
#include <QSet>
#include <QTimer>
#include "filesystemwatcherinterface.h"
@ -38,9 +39,12 @@ class MacFSListener : public FileSystemWatcherInterface {
signals:
void PathChanged(const QString& path);
private:
private slots:
void UpdateStream();
private:
void UpdateStreamAsync();
static void EventStreamCallback(
ConstFSEventStreamRef stream,
void* user_data,
@ -53,6 +57,7 @@ class MacFSListener : public FileSystemWatcherInterface {
FSEventStreamRef stream_;
QSet<QString> paths_;
QTimer update_timer_;
};
#endif

13
src/core/macfslistener.mm
View File

@ -28,6 +28,9 @@ MacFSListener::MacFSListener(QObject* parent)
: FileSystemWatcherInterface(parent),
run_loop_(NULL),
stream_(NULL) {
update_timer_.setSingleShot(true);
update_timer_.setInterval(2000);
connect(&update_timer_, SIGNAL(timeout()), SLOT(UpdateStream()));
}
void MacFSListener::Init() {
@ -56,18 +59,22 @@ void MacFSListener::EventStreamCallback(
void MacFSListener::AddPath(const QString& path) {
Q_ASSERT(run_loop_);
paths_.insert(path);
UpdateStream();
UpdateStreamAsync();
}
void MacFSListener::RemovePath(const QString& path) {
Q_ASSERT(run_loop_);
paths_.remove(path);
UpdateStream();
UpdateStreamAsync();
}
void MacFSListener::Clear() {
paths_.clear();
UpdateStream();
UpdateStreamAsync();
}
void MacFSListener::UpdateStreamAsync() {
update_timer_.start();
}
void MacFSListener::UpdateStream() {