Update monet.

mojo/common/strong_binding_set.h

+// Copyright 2014 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef MOJO_COMMON_STRONG_BINDING_SET_H_
+#define MOJO_COMMON_STRONG_BINDING_SET_H_
+
+#include <algorithm>
+#include <memory>
+#include <vector>
+
+#include "base/logging.h"
+#include "base/macros.h"
+#include "mojo/public/cpp/bindings/binding.h"
+
+namespace mojo {
+
+// Use this class to manage a set of strong bindings each of which is
+// owned by the pipe it is bound to.  The set takes ownership of the
+// interfaces and will delete them when the bindings are closed.
+template <typename Interface>
+class StrongBindingSet {
+ public:
+  StrongBindingSet() {}
+  ~StrongBindingSet() { CloseAllBindings(); }
+
+  // Adds a binding to the list and arranges for it to be removed when
+  // a connection error occurs.  Takes ownership of |impl|, which
+  // will be deleted when the binding is closed.
+  void AddBinding(Interface* impl, InterfaceRequest<Interface> request) {
+    bindings_.emplace_back(new Binding<Interface>(impl, request.Pass()));
+    auto* binding = bindings_.back().get();
+    // Set the connection error handler for the newly added Binding to be a
+    // function that will erase it from the vector.
+    binding->set_connection_error_handler([this, binding]() {
+      auto it =
+          std::find_if(bindings_.begin(), bindings_.end(),
+                       [binding](const std::unique_ptr<Binding<Interface>>& b) {
+                         return (b.get() == binding);
+                       });
+      DCHECK(it != bindings_.end());
+      delete binding->impl();
+      bindings_.erase(it);
+    });
+  }
+
+  // Removes all bindings for the specified interface implementation.
+  // The implementation object is not destroyed.
+  void RemoveBindings(Interface* impl) {
+    bindings_.erase(
+        std::remove_if(bindings_.begin(), bindings_.end(),
+                       [impl](const std::unique_ptr<Binding<Interface>>& b) {
+                         return (b->impl() == impl);
+                       }));
+  }
+
+  // Closes all bindings and deletes their associated interfaces.
+  void CloseAllBindings() {
+    for (auto it = bindings_.begin(); it != bindings_.end(); ++it) {
+      delete (*it)->impl();
+    }
+    bindings_.clear();
+  }
+
+  size_t size() const { return bindings_.size(); }
+
+ private:
+  std::vector<std::unique_ptr<Binding<Interface>>> bindings_;
+
+  DISALLOW_COPY_AND_ASSIGN(StrongBindingSet);
+};
+
+}  // namespace mojo
+
+#endif  // MOJO_COMMON_STRONG_BINDING_SET_H_