/*static*/ status_t
BPathMonitor::StopWatching(const char* path, BMessenger target)
{
if (sLocker == NULL)
return B_NO_INIT;
TRACE("StopWatching(%s)\n", path);
BAutolock _(sLocker);
WatcherMap::iterator iterator = sWatchers.find(target);
if (iterator == sWatchers.end())
return B_BAD_VALUE;
Watcher* watcher = iterator->second;
HandlerMap::iterator i = watcher->handlers.find(path);
if (i == watcher->handlers.end())
return B_BAD_VALUE;
PathHandler* handler = i->second;
watcher->handlers.erase(i);
handler->Quit();
if (watcher->handlers.empty()) {
sWatchers.erase(iterator);
delete watcher;
}
return B_OK;
}
/*static*/ status_t
BPathMonitor::StopWatching(BMessenger target)
{
if (sLocker == NULL)
return B_NO_INIT;
BAutolock _(sLocker);
WatcherMap::iterator iterator = sWatchers.find(target);
if (iterator == sWatchers.end())
return B_BAD_VALUE;
Watcher* watcher = iterator->second;
while (!watcher->handlers.empty()) {
HandlerMap::iterator i = watcher->handlers.begin();
PathHandler* handler = i->second;
watcher->handlers.erase(i);
handler->Quit();
}
sWatchers.erase(iterator);
delete watcher;
return B_OK;
}
/*static*/ status_t
BPathMonitor::StartWatching(const char* path, uint32 flags, BMessenger target)
{
TRACE("StartWatching(%s)\n", path);
status_t status = _InitLockerIfNeeded();
if (status != B_OK)
return status;
// use the global looper for receiving node monitor notifications
status = _InitLooperIfNeeded();
if (status < B_OK)
return status;
BAutolock _(sLocker);
WatcherMap::iterator iterator = sWatchers.find(target);
Watcher* watcher = NULL;
if (iterator != sWatchers.end())
watcher = iterator->second;
PathHandler* handler = new (nothrow) PathHandler(path, flags, target,
sLooper);
if (handler == NULL)
return B_NO_MEMORY;
status = handler->InitCheck();
if (status < B_OK) {
delete handler;
return status;
}
if (watcher == NULL) {
watcher = new (nothrow) BPrivate::Watcher;
if (watcher == NULL) {
delete handler;
return B_NO_MEMORY;
}
sWatchers[target] = watcher;
}
watcher->handlers[path] = handler;
return B_OK;
}