fix potential throwing at destructor of gateways

Author: serges147

src/common/ipc/client_router.cpp

@@ -145,9 +145,12 @@ class ClientRouterImpl final : public ClientRouter
         {
             ::syslog(LOG_DEBUG, "~Gateway(tag=%zu, seq=%zu).", endpoint_.getTag(), next_sequence_);  // NOLINT
 
-            // `next_sequence_ == 0` means that this gateway was never used for sending messages,
-            // and so remote router never knew about it (its tag) - no need to post "ChEnd" event.
-            router_.onGatewayDisposal(endpoint_, next_sequence_ > 0);
+            performWithoutThrowing([this] {
+                //
+                // `next_sequence_ == 0` means that this gateway was never used for sending messages,
+                // and so remote router never knew about it (its tag) - no need to post "ChEnd" event.
+                router_.onGatewayDisposal(endpoint_, next_sequence_ > 0);
+            });
         }
 
         // detail::Gateway

src/common/ipc/ipc_types.hpp

@@ -10,6 +10,7 @@
 
 #include <cerrno>
 #include <cstdint>
+#include <sys/syslog.h>
 
 namespace ocvsmd
 {
@@ -33,6 +34,23 @@ enum class ErrorCode : int  // NOLINT
 using Payload  = cetl::span<const std::uint8_t>;
 using Payloads = cetl::span<const Payload>;
 
+template <typename Action>
+void performWithoutThrowing(Action&& action) noexcept
+{
+#if defined(__cpp_exceptions)
+    try
+#endif
+    {
+        std::forward<Action>(action)();
+    }
+#if defined(__cpp_exceptions)
+    catch (...)
+    {
+        ::syslog(LOG_WARNING, "Unexpected exception is caught!");  // NOLINT
+    }
+#endif
+}
+
 }  // namespace ipc
 }  // namespace common
 }  // namespace ocvsmd

src/common/ipc/server_router.cpp

@@ -149,7 +149,10 @@ class ServerRouterImpl final : public ServerRouter
         {
             ::syslog(LOG_DEBUG, "~Gateway(cl=%zu, tag=%zu).", endpoint_.getClientId(), endpoint_.getTag());  // NOLINT
 
-            router_.onGatewayDisposal(endpoint_);
+            performWithoutThrowing([this] {
+                //
+                router_.onGatewayDisposal(endpoint_);
+            });
         }
 
         // detail::Gateway