[HICN-539] Expose portal APIs to applications

Change-Id: Icbaad69981193119714f5689faf3518d2e152e11
Signed-off-by: Mauro Sardara <msardara@cisco.com>

7 files changed, 118 insertions, 60 deletions

diff --git a/libtransport/src/CMakeLists.txt b/libtransport/src/CMakeLists.txt
index a182998e3..c92393775 100644
--- a/libtransport/src/CMakeLists.txt
+++ b/libtransport/src/CMakeLists.txt
@@ -42,7 +42,6 @@ list(INSERT LIBTRANSPORT_INTERNAL_INCLUDE_DIRS 0
 )
 
 set(LIBTRANSPORT_INCLUDE_DIRS
-  ${CMAKE_CURRENT_BINARY_DIR}
   ${LIBTRANSPORT_INCLUDE_DIRS}
   "" CACHE INTERNAL
   "" FORCE
diff --git a/libtransport/src/core/pending_interest.h b/libtransport/src/core/pending_interest.h
index 87fed5073..d9ec2ed40 100644
--- a/libtransport/src/core/pending_interest.h
+++ b/libtransport/src/core/pending_interest.h
@@ -19,6 +19,7 @@
 #include <hicn/transport/core/content_object.h>
 #include <hicn/transport/core/interest.h>
 #include <hicn/transport/core/name.h>
+#include <hicn/transport/interfaces/portal.h>
 #include <hicn/transport/portability/portability.h>
 
 #include <utils/deadline_timer.h>
@@ -36,10 +37,8 @@ class RawSocketInterface;
 template <typename ForwarderInt>
 class Portal;
 
-typedef std::function<void(Interest::Ptr &&, ContentObject::Ptr &&)>
-    OnContentObjectCallback;
-typedef std::function<void(Interest::Ptr &&)> OnInterestTimeoutCallback;
-typedef std::function<void(const std::error_code &)> TimerCallback;
+using OnContentObjectCallback = interface::Portal::OnContentObjectCallback;
+using OnInterestTimeoutCallback = interface::Portal::OnInterestTimeoutCallback;
 
 class PendingInterest {
   friend class Portal<HicnForwarderInterface>;
diff --git a/libtransport/src/core/portal.h b/libtransport/src/core/portal.h
index d7c463dfd..cf1010068 100644
--- a/libtransport/src/core/portal.h
+++ b/libtransport/src/core/portal.h
@@ -21,6 +21,7 @@
 #include <hicn/transport/core/name.h>
 #include <hicn/transport/core/prefix.h>
 #include <hicn/transport/errors/errors.h>
+#include <hicn/transport/interfaces/portal.h>
 #include <hicn/transport/portability/portability.h>
 #include <hicn/transport/utils/log.h>
 
@@ -39,8 +40,6 @@
 #include <queue>
 #include <unordered_map>
 
-#define UNSET_CALLBACK 0
-
 namespace transport {
 namespace core {
 
@@ -230,36 +229,7 @@ class Pool {
 using PendingInterestHashTable =
     std::unordered_map<uint32_t, PendingInterest::Ptr>;
 
-template <typename PrefixType>
-class BasicBindConfig {
-  static_assert(std::is_same<Prefix, PrefixType>::value,
-                "Prefix must be a Prefix type.");
-
-  const uint32_t standard_cs_reserved = 5000;
-
- public:
-  template <typename T>
-  BasicBindConfig(T &&prefix)
-      : prefix_(std::forward<T &&>(prefix)),
-        content_store_reserved_(standard_cs_reserved) {}
-
-  template <typename T>
-  BasicBindConfig(T &&prefix, uint32_t cs_reserved)
-      : prefix_(std::forward<T &&>(prefix)),
-        content_store_reserved_(cs_reserved) {}
-
-  TRANSPORT_ALWAYS_INLINE const PrefixType &prefix() const { return prefix_; }
-
-  TRANSPORT_ALWAYS_INLINE uint32_t csReserved() const {
-    return content_store_reserved_;
-  }
-
- private:
-  PrefixType prefix_;
-  uint32_t content_store_reserved_;
-};
-
-using BindConfig = BasicBindConfig<Prefix>;
+using interface::BindConfig;
 
 /**
  * Portal is a opaque class which is used for sending/receiving interest/data
@@ -290,24 +260,8 @@ class Portal {
       "ForwarderInt must inherit from ForwarderInterface!");
 
  public:
-  /**
-   * Consumer callback is an abstract class containing two methods to be
-   * implemented by a consumer application.
-   */
-  class ConsumerCallback {
-   public:
-    virtual void onContentObject(Interest::Ptr &&i, ContentObject::Ptr &&c) = 0;
-    virtual void onTimeout(Interest::Ptr &&i) = 0;
-  };
-
-  /**
-   * Producer callback is an abstract class containing two methods to be
-   * implemented by a producer application.
-   */
-  class ProducerCallback {
-   public:
-    virtual void onInterest(Interest::Ptr &&i) = 0;
-  };
+  using ConsumerCallback = interface::Portal::ConsumerCallback;
+  using ProducerCallback = interface::Portal::ProducerCallback;
 
   Portal() : Portal(internal_io_service_) {}
 
diff --git a/libtransport/src/implementation/socket_producer.h b/libtransport/src/implementation/socket_producer.h
index 1f03fe53d..a5dd578b1 100644
--- a/libtransport/src/implementation/socket_producer.h
+++ b/libtransport/src/implementation/socket_producer.h
@@ -426,6 +426,8 @@ class ProducerSocket : public Socket<BasePortal>,
     onInterest(*interest);
   };
 
+  virtual void onError(std::error_code ec) override {}
+
   virtual int setSocketOption(int socket_option_key,
                               uint32_t socket_option_value) {
     switch (socket_option_key) {
diff --git a/libtransport/src/interfaces/CMakeLists.txt b/libtransport/src/interfaces/CMakeLists.txt
index daf4b31e5..e1d144596 100644
--- a/libtransport/src/interfaces/CMakeLists.txt
+++ b/libtransport/src/interfaces/CMakeLists.txt
@@ -17,6 +17,7 @@ list(APPEND SOURCE_FILES
   ${CMAKE_CURRENT_SOURCE_DIR}/rtc_socket_producer.cc
   ${CMAKE_CURRENT_SOURCE_DIR}/socket_producer.cc
   ${CMAKE_CURRENT_SOURCE_DIR}/socket_consumer.cc
+  ${CMAKE_CURRENT_SOURCE_DIR}/portal.cc
   ${CMAKE_CURRENT_SOURCE_DIR}/callbacks.cc
 )
 
diff --git a/libtransport/src/interfaces/portal.cc b/libtransport/src/interfaces/portal.cc
new file mode 100644
index 000000000..36cbd0c3b
--- /dev/null
+++ b/libtransport/src/interfaces/portal.cc
@@ -0,0 +1,100 @@
+/*
+ * Copyright (c) 2020 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.
+ */
+
+#include <hicn/transport/interfaces/portal.h>
+
+#include <implementation/socket.h>
+
+namespace transport {
+namespace interface {
+
+using implementation::BasePortal;
+
+Portal::Portal() { implementation_ = new implementation::BasePortal(); }
+
+Portal::Portal(asio::io_service &io_service) {
+  implementation_ = new BasePortal(io_service);
+}
+
+Portal::~Portal() { delete reinterpret_cast<BasePortal *>(implementation_); }
+
+void Portal::setConsumerCallback(ConsumerCallback *consumer_callback) {
+  reinterpret_cast<BasePortal *>(implementation_)
+      ->setConsumerCallback(consumer_callback);
+}
+
+void Portal::setProducerCallback(ProducerCallback *producer_callback) {
+  reinterpret_cast<BasePortal *>(implementation_)
+      ->setProducerCallback(producer_callback);
+}
+
+void Portal::connect(bool is_consumer) {
+  reinterpret_cast<BasePortal *>(implementation_)->connect(is_consumer);
+}
+
+bool Portal::interestIsPending(const core::Name &name) {
+  return reinterpret_cast<BasePortal *>(implementation_)
+      ->interestIsPending(name);
+}
+
+void Portal::sendInterest(
+    core::Interest::Ptr &&interest,
+    OnContentObjectCallback &&on_content_object_callback,
+    OnInterestTimeoutCallback &&on_interest_timeout_callback) {
+  reinterpret_cast<BasePortal *>(implementation_)
+      ->sendInterest(std::move(interest), std::move(on_content_object_callback),
+                     std::move(on_interest_timeout_callback));
+}
+
+void Portal::bind(const BindConfig &config) {
+  reinterpret_cast<BasePortal *>(implementation_)->bind(config);
+}
+
+void Portal::runEventsLoop() {
+  reinterpret_cast<BasePortal *>(implementation_)->runEventsLoop();
+}
+
+void Portal::runOneEvent() {
+  reinterpret_cast<BasePortal *>(implementation_)->runOneEvent();
+}
+
+void Portal::sendContentObject(core::ContentObject &content_object) {
+  reinterpret_cast<BasePortal *>(implementation_)
+      ->sendContentObject(content_object);
+}
+
+void Portal::stopEventsLoop() {
+  reinterpret_cast<BasePortal *>(implementation_)->stopEventsLoop();
+}
+
+void Portal::killConnection() {
+  reinterpret_cast<BasePortal *>(implementation_)->killConnection();
+}
+
+void Portal::clear() {
+  reinterpret_cast<BasePortal *>(implementation_)->clear();
+}
+
+asio::io_service &Portal::getIoService() {
+  return reinterpret_cast<BasePortal *>(implementation_)->getIoService();
+}
+
+void Portal::registerRoute(core::Prefix &prefix) {
+  reinterpret_cast<BasePortal *>(implementation_)->registerRoute(prefix);
+}
+
+}  // namespace interface
+
+}  // namespace transport
\ No newline at end of file
diff --git a/libtransport/src/protocols/protocol.h b/libtransport/src/protocols/protocol.h
index c094adaae..949380959 100644
--- a/libtransport/src/protocols/protocol.h
+++ b/libtransport/src/protocols/protocol.h
@@ -67,15 +67,18 @@ class TransportProtocol : public implementation::BasePortal::ConsumerCallback,
 
   // Events generated by the indexing
   virtual void onContentReassembled(std::error_code ec);
-  virtual void onPacketDropped(Interest::Ptr &&interest,
-                               ContentObject::Ptr &&content_object) = 0;
-  virtual void onReassemblyFailed(std::uint32_t missing_segment) = 0;
+  virtual void onPacketDropped(
+      Interest::Ptr &&interest,
+      ContentObject::Ptr &&content_object) override = 0;
+  virtual void onReassemblyFailed(std::uint32_t missing_segment) override = 0;
 
  protected:
   // Consumer Callback
   virtual void reset() = 0;
-  virtual void onContentObject(Interest::Ptr &&i, ContentObject::Ptr &&c) = 0;
-  virtual void onTimeout(Interest::Ptr &&i) = 0;
+  virtual void onContentObject(Interest::Ptr &&i,
+                               ContentObject::Ptr &&c) override = 0;
+  virtual void onTimeout(Interest::Ptr &&i) override = 0;
+  virtual void onError(std::error_code ec) override {}
 
  protected:
   implementation::ConsumerSocket *socket_;