bool FileSystemWatcher::watch(const Path &p)
{
Path path = p;
assert(!path.isEmpty());
const Path::Type type = path.type();
switch (type) {
case Path::File:
path = path.parentDir();
// fall through
case Path::Directory:
break;
default:
error("FileSystemWatcher::watch() '%s' doesn't seem to be watchable", path.constData());
return false;
}
if (!path.endsWith('/'))
path += '/';
if (isWatching(path))
return false;
mWatcher->watch(path);
return true;
}
bool FileSystemWatcher::isWatching(const Path& p) const
{
if (!p.endsWith('/'))
return isWatching(p + '/');
std::lock_guard<std::mutex> lock(mWatcher->mutex);
return mWatcher->paths.contains(p);
}
bool FileSystemWatcher::watch(const Path &p)
{
Path path = p;
assert(!path.isEmpty());
std::lock_guard<std::mutex> lock(mMutex);
const Path::Type type = path.type();
uint32_t flags = 0;
switch (type) {
case Path::File:
path = path.parentDir();
// fall through
case Path::Directory:
flags = NOTE_RENAME|NOTE_DELETE|NOTE_EXTEND|NOTE_WRITE|NOTE_ATTRIB|NOTE_REVOKE;
break;
default:
error("FileSystemWatcher::watch() '%s' doesn't seem to be watchable", path.constData());
return false;
}
if (!path.endsWith('/'))
path += '/';
if (isWatching(path))
return false;
int ret = ::open(path.nullTerminated(), O_RDONLY);
//static int cnt = 0;
//printf("wanting to watch [%05d] %s : %d\n", ++cnt, path.nullTerminated(), ret);
if (ret != -1) {
struct kevent change;
struct timespec nullts = { 0, 0 };
EV_SET(&change, ret, EVFILT_VNODE, EV_ADD|EV_ENABLE|EV_CLEAR, flags, 0, 0);
if (::kevent(mFd, &change, 1, 0, 0, &nullts) == -1) {
// bad things have happened
error("FileSystemWatcher::watch() kevent failed for '%s' (%d) %s",
path.constData(), errno, Rct::strerror().constData());
::close(ret);
return false;
}
}
if (ret == -1) {
error("FileSystemWatcher::watch() watch failed for '%s' (%d) %s",
path.constData(), errno, Rct::strerror().constData());
return false;
}
mWatchedByPath[path] = ret;
mWatchedById[ret] = path;
FSUserData data;
data.watcher = this;
path.visit([&data](const Path &p) {
return scanFiles(p, &data);
});
return true;
}
void DocumentWatcher::addWatch(Document* document)
{
QString path = QFileInfo(document->filename()).canonicalFilePath();
if (isWatching(path)) {
return;
}
m_paths.insert(path, document);
m_watcher->addPath(path);
}
bool WatcherThread::watch(const Path& path)
{
MutexLocker locker(&mutex);
if (isWatching(path))
return false;
paths.insert(path);
CFRunLoopSourceSignal(source);
CFRunLoopWakeUp(loop);
return true;
}
void DirectoryWatcherManager::addPath(const Poco::Path& path,
bool listExistingItemsOnStart,
bool sortAlphaNumeric,
AbstractPathFilter* pFilter,
int eventMask,
int scanInterval)
{
if (isWatching(path))
{
Poco::Exception exc("Already Watching Exception", path.toString());
ofNotifyEvent(events.onScanError, exc, this);
return;
}
try
{
Poco::File file(path);
if (!file.exists())
{
Poco::FileNotFoundException exc(path.toString());
throw exc;
}
DirectoryWatcherPtr watcher = DirectoryWatcherPtr(new DirectoryWatcher(path.toString(),
eventMask,
scanInterval));
watcher->itemAdded += Poco::priorityDelegate(this, &DirectoryWatcherManager::onItemAdded, OF_EVENT_ORDER_AFTER_APP);
watcher->itemRemoved += Poco::priorityDelegate(this, &DirectoryWatcherManager::onItemRemoved, OF_EVENT_ORDER_AFTER_APP);
watcher->itemModified += Poco::priorityDelegate(this, &DirectoryWatcherManager::onItemModified, OF_EVENT_ORDER_AFTER_APP);
watcher->itemMovedFrom += Poco::priorityDelegate(this, &DirectoryWatcherManager::onItemMovedFrom, OF_EVENT_ORDER_AFTER_APP);
watcher->itemMovedTo += Poco::priorityDelegate(this, &DirectoryWatcherManager::onItemMovedTo, OF_EVENT_ORDER_AFTER_APP);
watcher->scanError += Poco::priorityDelegate(this, &DirectoryWatcherManager::onScanError, OF_EVENT_ORDER_AFTER_APP);
mutex.lock();
if(pFilter)
{
filterList[path] = pFilter;
}
watchList[path] = watcher;
mutex.unlock();
if (listExistingItemsOnStart)
{
std::vector<Poco::File> files;
DirectoryUtils::list(file, files, sortAlphaNumeric, pFilter);
std::vector<Poco::File>::iterator iter = files.begin();
while(iter != files.end())
{
DirectoryWatcher::DirectoryEvent event(*iter, DirectoryWatcher::DW_ITEM_ADDED);
ofNotifyEvent(events.onItemAdded,event,this);
++iter;
}
}
}
catch (const Poco::FileNotFoundException& exc)
{
ofNotifyEvent(events.onScanError, exc, this);
}
}
bool FileSystemWatcher::isWatching(const Path& p) const
{
if (!p.endsWith('/'))
return isWatching(p + '/');
return mWatchedByPath.contains(p);
}
bool FSEventsService::hasErrored() {
struct stat root;
return !isWatching() || stat(mPath.c_str(), &root) < 0;
}
bool FileSystemWatcher::watch(const Path &p)
{
Path path = p;
assert(!path.isEmpty());
MutexLocker lock(&mMutex);
const Path::Type type = path.type();
uint32_t flags = 0;
switch (type) {
case Path::File:
path = path.parentDir();
// fall through
case Path::Directory:
flags = NOTE_RENAME|NOTE_DELETE|NOTE_EXTEND|NOTE_WRITE|NOTE_ATTRIB|NOTE_REVOKE;
break;
default:
error("FileSystemWatcher::watch() '%s' doesn't not seem to be watchable", path.constData());
return false;
}
if (!path.endsWith('/'))
path += '/';
if (isWatching(path))
return false;
int ret = ::open(path.nullTerminated(), O_RDONLY);
//static int cnt = 0;
//printf("wanting to watch [%05d] %s : %d\n", ++cnt, path.nullTerminated(), ret);
if (ret != -1) {
struct kevent change;
struct timespec nullts = { 0, 0 };
EV_SET(&change, ret, EVFILT_VNODE, EV_ADD|EV_ENABLE|EV_CLEAR, flags, 0, 0);
if (::kevent(mFd, &change, 1, 0, 0, &nullts) == -1) {
// bad things have happened
error("FileSystemWatcher::watch() kevent failed for '%s' (%d) %s",
path.constData(), errno, strerror(errno));
::close(ret);
return false;
}
}
if (ret == -1) {
error("FileSystemWatcher::watch() watch failed for '%s' (%d) %s",
path.constData(), errno, strerror(errno));
return false;
}
mWatchedByPath[path] = ret;
mWatchedById[ret] = path;
FSUserData data;
data.watcher = this;
path.visit(scanFiles, &data);
// did we watch any parent directories of what we've already watched?
// if so, unwatch the subdirectories
int wd;
struct kevent change;
struct timespec nullts = { 0, 0 };
for (Set<Path>::const_iterator it = data.modified.begin(); it != data.modified.end(); ++it) {
if (mWatchedByPath.remove(*it, &wd)) {
EV_SET(&change, wd, EVFILT_VNODE, EV_DELETE, 0, 0, 0);
if (::kevent(mFd, &change, 1, 0, 0, &nullts) == -1) {
// bad stuff
error("FileSystemWatcher::watch() kevent (for existing path) failed for '%s' (%d) %s",
it->constData(), errno, strerror(errno));
}
::close(wd);
mWatchedById.remove(wd);
}
}
return true;
}
