1 files changed, 81 insertions, 0 deletions
diff --git a/libtransport/src/hicn/transport/core/pending_interest.h b/libtransport/src/hicn/transport/core/pending_interest.h
new file mode 100755
index 000000000..cbcafb5d9
--- /dev/null
+++ b/libtransport/src/hicn/transport/core/pending_interest.h
@@ -0,0 +1,81 @@
+/*
+ * Copyright (c) 2017-2019 Cisco and/or its affiliates.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at:
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#pragma once
+
+#include <hicn/transport/core/content_object.h>
+#include <hicn/transport/core/interest.h>
+#include <hicn/transport/core/name.h>
+#include <hicn/transport/portability/portability.h>
+#include <hicn/transport/utils/deadline_timer.h>
+
+#include <asio/steady_timer.hpp>
+
+namespace transport {
+
+namespace core {
+
+class HicnForwarderInterface;
+class VPPForwarderInterface;
+class RawSocketInterface;
+
+template <typename ForwarderInt>
+class Portal;
+
+typedef std::function<void(const std::error_code &)> TimerCallback;
+
+class PendingInterest {
+  friend class Portal<HicnForwarderInterface>;
+  friend class Portal<VPPForwarderInterface>;
+  friend class Portal<RawSocketInterface>;
+
+ public:
+  PendingInterest();
+
+  PendingInterest(Interest::Ptr &&interest,
+                  std::unique_ptr<asio::steady_timer> &&timer);
+
+  ~PendingInterest();
+
+  bool isReceived() const;
+
+  template <typename Handler>
+  TRANSPORT_ALWAYS_INLINE void startCountdown(Handler &&cb) {
+    timer_->expires_from_now(
+        std::chrono::milliseconds(interest_->getLifetime()));
+    timer_->async_wait(cb);
+  }
+
+  void cancelTimer();
+
+  void setReceived();
+
+  Interest::Ptr &&getInterest();
+
+  void setReceived(bool received);
+
+  bool isValid() const;
+
+  void setValid(bool valid);
+
+ private:
+  Interest::Ptr interest_;
+  std::unique_ptr<asio::steady_timer> timer_;
+  bool received_;
+};
+
+}  // end namespace core
+
+}  // end namespace transport