return false;
}
-void ResourcePool::CheckBusyResources() {
+void ResourcePool::CheckBusyResources(bool wait_if_needed) {
ResourceList::iterator it = busy_resources_.begin();
while (it != busy_resources_.end()) {
ScopedResource* resource = *it;
+ if (wait_if_needed)
+ resource_provider_->WaitReadLockIfNeeded(resource->id());
+
if (resource_provider_->CanLockForWrite(resource->id())) {
DidFinishUsingResource(resource);
it = busy_resources_.erase(it);