1 // Copyright 2014 The Chromium Authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 #include "mojo/public/cpp/bindings/lib/filter_chain.h" 6 7 #include <algorithm> 8 9 #include "mojo/public/cpp/environment/logging.h" 10 11 namespace mojo { 12 namespace internal { 13 14 FilterChain::FilterChain(MessageReceiver* sink) : sink_(sink) { 15 } 16 17 FilterChain::FilterChain(RValue other) : sink_(other.object->sink_) { 18 other.object->sink_ = NULL; 19 filters_.swap(other.object->filters_); 20 } 21 22 FilterChain& FilterChain::operator=(RValue other) { 23 std::swap(sink_, other.object->sink_); 24 filters_.swap(other.object->filters_); 25 return *this; 26 } 27 28 FilterChain::~FilterChain() { 29 for (std::vector<MessageFilter*>::iterator iter = filters_.begin(); 30 iter != filters_.end(); 31 ++iter) { 32 delete *iter; 33 } 34 } 35 36 void FilterChain::SetSink(MessageReceiver* sink) { 37 MOJO_DCHECK(!sink_); 38 sink_ = sink; 39 if (!filters_.empty()) 40 filters_.back()->set_sink(sink); 41 } 42 43 MessageReceiver* FilterChain::GetHead() { 44 MOJO_DCHECK(sink_); 45 return filters_.empty() ? sink_ : filters_.front(); 46 } 47 48 } // namespace internal 49 } // namespace mojo 50
