Complete events support (#583)

* Add SubListener::on_sample_lost empty stub.
* Process data inside listener callback.
* Add RMW_EVENT_MESSAGE_LOST to hasEvent and takeNextEvent.
* Add SubListener::on_requested_incompatible_qos empty stub.
* Process data inside listener callback.
* Add RMW_EVENT_REQUESTED_QOS_INCOMPATIBLE to hasEvent and takeNextEvent.
* Translate policy id.
* Add PubListener::on_offered_incompatible_qos empty stub.
* Process data inside listener callback.
* Add RMW_EVENT_OFFERED_QOS_INCOMPATIBLE to hasEvent and takeNextEvent.
* Add incompatible qos events to supported list.
* Initialize added atomic_bool fields.

Signed-off-by: Miguel Company <MiguelCompany@eprosima.com>
Co-authored-by: Chris Lalancette <clalancette@openrobotics.org>

rmw_fastrtps_shared_cpp/include/rmw_fastrtps_shared_cpp/custom_publisher_info.hpp

@@ -61,6 +61,7 @@ class PubListener : public EventListenerInterface, public eprosima::fastdds::dds
   explicit PubListener(CustomPublisherInfo * info)
   : deadline_changes_(false),
     liveliness_changes_(false),
+    incompatible_qos_changes_(false),
     conditionMutex_(nullptr),
     conditionVariable_(nullptr)
   {
@@ -94,6 +95,11 @@ class PubListener : public EventListenerInterface, public eprosima::fastdds::dds
     eprosima::fastdds::dds::DataWriter * writer,
     const eprosima::fastdds::dds::LivelinessLostStatus & status) final;
 
+  RMW_FASTRTPS_SHARED_CPP_PUBLIC
+  void
+  on_offered_incompatible_qos(
+    eprosima::fastdds::dds::DataWriter *,
+    const eprosima::fastdds::dds::OfferedIncompatibleQosStatus &) final;
 
   // EventListenerInterface implementation
   RMW_FASTRTPS_SHARED_CPP_PUBLIC
@@ -141,6 +147,10 @@ class PubListener : public EventListenerInterface, public eprosima::fastdds::dds
   eprosima::fastdds::dds::LivelinessLostStatus liveliness_lost_status_
   RCPPUTILS_TSA_GUARDED_BY(internalMutex_);
 
+  std::atomic_bool incompatible_qos_changes_;
+  eprosima::fastdds::dds::OfferedIncompatibleQosStatus incompatible_qos_status_
+  RCPPUTILS_TSA_GUARDED_BY(internalMutex_);
+
   std::mutex * conditionMutex_ RCPPUTILS_TSA_GUARDED_BY(internalMutex_);
   std::condition_variable * conditionVariable_ RCPPUTILS_TSA_GUARDED_BY(internalMutex_);
 };

rmw_fastrtps_shared_cpp/include/rmw_fastrtps_shared_cpp/custom_subscriber_info.hpp

@@ -70,6 +70,8 @@ class SubListener : public EventListenerInterface, public eprosima::fastdds::dds
   : data_(false),
     deadline_changes_(false),
     liveliness_changes_(false),
+    sample_lost_changes_(false),
+    incompatible_qos_changes_(false),
     conditionMutex_(nullptr),
     conditionVariable_(nullptr)
   {
@@ -112,6 +114,18 @@ class SubListener : public EventListenerInterface, public eprosima::fastdds::dds
     eprosima::fastdds::dds::DataReader *,
     const eprosima::fastrtps::LivelinessChangedStatus &) final;
 
+  RMW_FASTRTPS_SHARED_CPP_PUBLIC
+  void
+  on_sample_lost(
+    eprosima::fastdds::dds::DataReader *,
+    const eprosima::fastdds::dds::SampleLostStatus &) final;
+
+  RMW_FASTRTPS_SHARED_CPP_PUBLIC
+  void
+  on_requested_incompatible_qos(
+    eprosima::fastdds::dds::DataReader *,
+    const eprosima::fastdds::dds::RequestedIncompatibleQosStatus &) final;
+
   // EventListenerInterface implementation
   RMW_FASTRTPS_SHARED_CPP_PUBLIC
   bool
@@ -176,6 +190,14 @@ class SubListener : public EventListenerInterface, public eprosima::fastdds::dds
   eprosima::fastdds::dds::LivelinessChangedStatus liveliness_changed_status_
   RCPPUTILS_TSA_GUARDED_BY(internalMutex_);
 
+  std::atomic_bool sample_lost_changes_;
+  eprosima::fastdds::dds::SampleLostStatus sample_lost_status_
+  RCPPUTILS_TSA_GUARDED_BY(internalMutex_);
+
+  std::atomic_bool incompatible_qos_changes_;
+  eprosima::fastdds::dds::RequestedIncompatibleQosStatus incompatible_qos_status_
+  RCPPUTILS_TSA_GUARDED_BY(internalMutex_);
+
   std::mutex * conditionMutex_ RCPPUTILS_TSA_GUARDED_BY(internalMutex_);
   std::condition_variable * conditionVariable_ RCPPUTILS_TSA_GUARDED_BY(internalMutex_);
 

rmw_fastrtps_shared_cpp/src/custom_publisher_info.cpp

@@ -13,8 +13,11 @@
 // limitations under the License.
 
 #include "rmw_fastrtps_shared_cpp/custom_publisher_info.hpp"
+
 #include "fastdds/dds/core/status/BaseStatus.hpp"
 #include "fastdds/dds/core/status/DeadlineMissedStatus.hpp"
+
+#include "event_helpers.hpp"
 #include "types/event_types.hpp"
 
 EventListenerInterface *
@@ -60,6 +63,25 @@ void PubListener::on_liveliness_lost(
   liveliness_changes_.store(true, std::memory_order_relaxed);
 }
 
+void PubListener::on_offered_incompatible_qos(
+  eprosima::fastdds::dds::DataWriter * /* writer */,
+  const eprosima::fastdds::dds::OfferedIncompatibleQosStatus & status)
+{
+  std::lock_guard<std::mutex> lock(internalMutex_);
+
+  // the change to incompatible_qos_status_ needs to be mutually exclusive with
+  // rmw_wait() which checks hasEvent() and decides if wait() needs to be called
+  ConditionalScopedLock clock(conditionMutex_, conditionVariable_);
+
+  // Assign absolute values
+  incompatible_qos_status_.last_policy_id = status.last_policy_id;
+  incompatible_qos_status_.total_count = status.total_count;
+  // Accumulate deltas
+  incompatible_qos_status_.total_count_change += status.total_count_change;
+
+  incompatible_qos_changes_.store(true, std::memory_order_relaxed);
+}
+
 bool PubListener::hasEvent(rmw_event_type_t event_type) const
 {
   assert(rmw_fastrtps_shared_cpp::internal::is_event_supported(event_type));
@@ -68,6 +90,8 @@ bool PubListener::hasEvent(rmw_event_type_t event_type) const
       return liveliness_changes_.load(std::memory_order_relaxed);
     case RMW_EVENT_OFFERED_DEADLINE_MISSED:
       return deadline_changes_.load(std::memory_order_relaxed);
+    case RMW_EVENT_OFFERED_QOS_INCOMPATIBLE:
+      return incompatible_qos_changes_.load(std::memory_order_relaxed);
     default:
       break;
   }
@@ -97,6 +121,18 @@ bool PubListener::takeNextEvent(rmw_event_type_t event_type, void * event_info)
         deadline_changes_.store(false, std::memory_order_relaxed);
       }
       break;
+    case RMW_EVENT_OFFERED_QOS_INCOMPATIBLE:
+      {
+        auto rmw_data = static_cast<rmw_requested_qos_incompatible_event_status_t *>(event_info);
+        rmw_data->total_count = incompatible_qos_status_.total_count;
+        rmw_data->total_count_change = incompatible_qos_status_.total_count_change;
+        rmw_data->last_policy_kind =
+          rmw_fastrtps_shared_cpp::internal::dds_qos_policy_to_rmw_qos_policy(
+          incompatible_qos_status_.last_policy_id);
+        incompatible_qos_status_.total_count_change = 0;
+        incompatible_qos_changes_.store(false, std::memory_order_relaxed);
+      }
+      break;
     default:
       return false;
   }

rmw_fastrtps_shared_cpp/src/custom_subscriber_info.cpp

@@ -17,6 +17,7 @@
 #include "fastdds/dds/core/status/DeadlineMissedStatus.hpp"
 #include "fastdds/dds/core/status/LivelinessChangedStatus.hpp"
 
+#include "event_helpers.hpp"
 #include "types/event_types.hpp"
 
 EventListenerInterface *
@@ -64,6 +65,43 @@ void SubListener::on_liveliness_changed(
   liveliness_changes_.store(true, std::memory_order_relaxed);
 }
 
+void SubListener::on_sample_lost(
+  eprosima::fastdds::dds::DataReader * /* reader */,
+  const eprosima::fastdds::dds::SampleLostStatus & status)
+{
+  std::lock_guard<std::mutex> lock(internalMutex_);
+
+  // the change to sample_lost_status_ needs to be mutually exclusive with
+  // rmw_wait() which checks hasEvent() and decides if wait() needs to be called
+  ConditionalScopedLock clock(conditionMutex_, conditionVariable_);
+
+  // Assign absolute values
+  sample_lost_status_.total_count = status.total_count;
+  // Accumulate deltas
+  sample_lost_status_.total_count_change += status.total_count_change;
+
+  sample_lost_changes_.store(true, std::memory_order_relaxed);
+}
+
+void SubListener::on_requested_incompatible_qos(
+  eprosima::fastdds::dds::DataReader * /* reader */,
+  const eprosima::fastdds::dds::RequestedIncompatibleQosStatus & status)
+{
+  std::lock_guard<std::mutex> lock(internalMutex_);
+
+  // the change to incompatible_qos_status_ needs to be mutually exclusive with
+  // rmw_wait() which checks hasEvent() and decides if wait() needs to be called
+  ConditionalScopedLock clock(conditionMutex_, conditionVariable_);
+
+  // Assign absolute values
+  incompatible_qos_status_.last_policy_id = status.last_policy_id;
+  incompatible_qos_status_.total_count = status.total_count;
+  // Accumulate deltas
+  incompatible_qos_status_.total_count_change += status.total_count_change;
+
+  incompatible_qos_changes_.store(true, std::memory_order_relaxed);
+}
+
 bool SubListener::hasEvent(rmw_event_type_t event_type) const
 {
   assert(rmw_fastrtps_shared_cpp::internal::is_event_supported(event_type));
@@ -72,6 +110,10 @@ bool SubListener::hasEvent(rmw_event_type_t event_type) const
       return liveliness_changes_.load(std::memory_order_relaxed);
     case RMW_EVENT_REQUESTED_DEADLINE_MISSED:
       return deadline_changes_.load(std::memory_order_relaxed);
+    case RMW_EVENT_MESSAGE_LOST:
+      return sample_lost_changes_.load(std::memory_order_relaxed);
+    case RMW_EVENT_REQUESTED_QOS_INCOMPATIBLE:
+      return incompatible_qos_changes_.load(std::memory_order_relaxed);
     default:
       break;
   }
@@ -104,6 +146,27 @@ bool SubListener::takeNextEvent(rmw_event_type_t event_type, void * event_info)
         deadline_changes_.store(false, std::memory_order_relaxed);
       }
       break;
+    case RMW_EVENT_MESSAGE_LOST:
+      {
+        auto rmw_data = static_cast<rmw_message_lost_status_t *>(event_info);
+        rmw_data->total_count = sample_lost_status_.total_count;
+        rmw_data->total_count_change = sample_lost_status_.total_count_change;
+        sample_lost_status_.total_count_change = 0;
+        sample_lost_changes_.store(false, std::memory_order_relaxed);
+      }
+      break;
+    case RMW_EVENT_REQUESTED_QOS_INCOMPATIBLE:
+      {
+        auto rmw_data = static_cast<rmw_requested_qos_incompatible_event_status_t *>(event_info);
+        rmw_data->total_count = incompatible_qos_status_.total_count;
+        rmw_data->total_count_change = incompatible_qos_status_.total_count_change;
+        rmw_data->last_policy_kind =
+          rmw_fastrtps_shared_cpp::internal::dds_qos_policy_to_rmw_qos_policy(
+          incompatible_qos_status_.last_policy_id);
+        incompatible_qos_status_.total_count_change = 0;
+        incompatible_qos_changes_.store(false, std::memory_order_relaxed);
+      }
+      break;
     default:
       return false;
   }

rmw_fastrtps_shared_cpp/src/event_helpers.hpp

@@ -0,0 +1,33 @@
+// Copyright 2022 Open Source Robotics Foundation, Inc.
+//
+// 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.
+
+#ifndef EVENT_HELPERS_HPP_
+#define EVENT_HELPERS_HPP_
+
+#include "fastdds/dds/core/policy/QosPolicies.hpp"
+
+#include "rmw/qos_policy_kind.h"
+
+namespace rmw_fastrtps_shared_cpp
+{
+namespace internal
+{
+
+rmw_qos_policy_kind_t dds_qos_policy_to_rmw_qos_policy(
+  eprosima::fastdds::dds::QosPolicyId_t policy_id);
+
+}  // namespace internal
+}  // namespace rmw_fastrtps_shared_cpp
+
+#endif  // EVENT_HELPERS_HPP_

rmw_fastrtps_shared_cpp/src/rmw_event.cpp

@@ -17,13 +17,17 @@
 #include "rmw/impl/cpp/macros.hpp"
 
 #include "rmw_fastrtps_shared_cpp/rmw_common.hpp"
+#include "event_helpers.hpp"
 #include "types/event_types.hpp"
 
 static const std::unordered_set<rmw_event_type_t> g_rmw_event_type_set{
   RMW_EVENT_LIVELINESS_CHANGED,
   RMW_EVENT_REQUESTED_DEADLINE_MISSED,
   RMW_EVENT_LIVELINESS_LOST,
-  RMW_EVENT_OFFERED_DEADLINE_MISSED
+  RMW_EVENT_OFFERED_DEADLINE_MISSED,
+  RMW_EVENT_MESSAGE_LOST,
+  RMW_EVENT_OFFERED_QOS_INCOMPATIBLE,
+  RMW_EVENT_REQUESTED_QOS_INCOMPATIBLE
 };
 
 namespace rmw_fastrtps_shared_cpp
@@ -36,6 +40,29 @@ bool is_event_supported(rmw_event_type_t event_type)
   return g_rmw_event_type_set.count(event_type) == 1;
 }
 
+rmw_qos_policy_kind_t dds_qos_policy_to_rmw_qos_policy(
+  eprosima::fastdds::dds::QosPolicyId_t policy_id)
+{
+  using eprosima::fastdds::dds::QosPolicyId_t;
+
+  switch (policy_id) {
+    case QosPolicyId_t::DURABILITY_QOS_POLICY_ID:
+      return RMW_QOS_POLICY_DURABILITY;
+    case QosPolicyId_t::DEADLINE_QOS_POLICY_ID:
+      return RMW_QOS_POLICY_DEADLINE;
+    case QosPolicyId_t::LIVELINESS_QOS_POLICY_ID:
+      return RMW_QOS_POLICY_LIVELINESS;
+    case QosPolicyId_t::RELIABILITY_QOS_POLICY_ID:
+      return RMW_QOS_POLICY_RELIABILITY;
+    case QosPolicyId_t::HISTORY_QOS_POLICY_ID:
+      return RMW_QOS_POLICY_HISTORY;
+    case QosPolicyId_t::LIFESPAN_QOS_POLICY_ID:
+      return RMW_QOS_POLICY_LIFESPAN;
+    default:
+      return RMW_QOS_POLICY_INVALID;
+  }
+}
+
 }  // namespace internal
 
 rmw_ret_t