(UDP) server endpoint tracking client information

[raman-krishnan]

I have a vsomeip server using release 3.5.6 that offers a bunch of services, all on the same UDP port.

I also have a test client that performs a 'request', gets the response and shuts down. One of the tests is to run the client in a loop, creating a new connection for each request.

What I observe is that the server keeps track of each client connection information in the targets_ member of server_endpoint_impl.
Over time, this results in a whole lot of memory allocation, all of which is properly released when the server application terminates.

Question:

1. Is there a way to limit the number of client connection information being tracked?
2. Is there anything I should do on the client side to indicate it is 'done'? From packet capture, I see that it sends a 'Find', gets 'offer', sends 'request' and gets a response. Then the client terminates.

Supporting data:
Enable status_log_interval in debug configuration. Snippet of logged info:

2025-08-11 19:46:41.757620 [info] status use: 61441 number targets: 78 recv_buffer: 1416 multicast_recv_buffer: 0
2025-08-11 19:46:41.757672 [info] status use: client: 172.22.1.2:33005 queue: 0 data: 0
2025-08-11 19:46:41.757721 [info] status use: client: 172.22.1.2:33252 queue: 0 data: 0
2025-08-11 19:46:41.757778 [info] status use: client: 172.22.1.2:33306 queue: 0 data: 0
2025-08-11 19:46:41.757840 [info] status use: client: 172.22.1.2:33907 queue: 0 data: 0
2025-08-11 19:46:41.757933 [info] status use: client: 172.22.1.2:33917 queue: 0 data: 0
75 more lines with similar info

Valgrind with massif tool's output:

->05.75% (192,528B) 0x8F2F59: allocate (new_allocator.h:127)
| ->05.75% (192,528B) 0x8F2F59: allocate (alloc_traits.h:464)
|   ->05.75% (192,528B) 0x8F2F59: _M_allocate_node (stl_deque.h:561)
|     ->05.75% (192,528B) 0x8F2F59: std::_Deque_base<std::pair<std::shared_ptr<std::vector<unsigned char, std::allocator<unsigned char> > >, unsigned int>, std::alloca
tor<std::pair<std::shared_ptr<std::vector<unsigned char, std::allocator<unsigned char> > >, unsigned int> > >::_M_create_nodes(std::pair<std::shared_ptr<std::vector<un
signed char, std::allocator<unsigned char> > >, unsigned int>**, std::pair<std::shared_ptr<std::vector<unsigned char, std::allocator<unsigned char> > >, unsigned int>*
*) (stl_deque.h:662)
|       ->05.75% (192,528B) 0x8F2E9C: std::_Deque_base<std::pair<std::shared_ptr<std::vector<unsigned char, std::allocator<unsigned char> > >, unsigned int>, std::allo
cator<std::pair<std::shared_ptr<std::vector<unsigned char, std::allocator<unsigned char> > >, unsigned int> > >::_M_initialize_map(unsigned long) (stl_deque.h:636)
|         ->05.75% (192,528B) 0x8E0A06: _Deque_base (stl_deque.h:446)
|         | ->05.75% (192,528B) 0x8E0A06: std::deque<std::pair<std::shared_ptr<std::vector<unsigned char, std::allocator<unsigned char> > >, unsigned int>, std::alloca
tor<std::pair<std::shared_ptr<std::vector<unsigned char, std::allocator<unsigned char> > >, unsigned int> > >::deque(std::deque<std::pair<std::shared_ptr<std::vector<u
nsigned char, std::allocator<unsigned char> > >, unsigned int>, std::allocator<std::pair<std::shared_ptr<std::vector<unsigned char, std::allocator<unsigned char> > >, 
unsigned int> > > const&) (stl_deque.h:896)
|         |   ->05.75% (192,528B) 0x8ED12F: vsomeip_v3::server_endpoint_impl<boost::asio::ip::udp>::endpoint_data_type::endpoint_data_type(vsomeip_v3::server_endpoint_
impl<boost::asio::ip::udp>::endpoint_data_type const&&) (server_endpoint_impl.hpp:44)
|         |     ->05.75% (192,528B) 0x8FAD9A: pair<boost::asio::ip::basic_endpoint<boost::asio::ip::udp>, vsomeip_v3::server_endpoint_impl<boost::asio::ip::udp>::endpo
int_data_type, true> (stl_pair.h:373)
|         |     | ->05.75% (192,528B) 0x8FAD9A: construct<std::pair<const boost::asio::ip::basic_endpoint<boost::asio::ip::udp>, vsomeip_v3::server_endpoint_impl<boost
::asio::ip::udp>::endpoint_data_type>, std::pair<boost::asio::ip::basic_endpoint<boost::asio::ip::udp>, vsomeip_v3::server_endpoint_impl<boost::asio::ip::udp>::endpoin
t_data_type> > (new_allocator.h:162)
|         |     |   ->05.75% (192,528B) 0x8FAD9A: construct<std::pair<const boost::asio::ip::basic_endpoint<boost::asio::ip::udp>, vsomeip_v3::server_endpoint_impl<boo
st::asio::ip::udp>::endpoint_data_type>, std::pair<boost::asio::ip::basic_endpoint<boost::asio::ip::udp>, vsomeip_v3::server_endpoint_impl<boost::asio::ip::udp>::endpo
int_data_type> > (alloc_traits.h:516)
|         |     |     ->05.75% (192,528B) 0x8FAD9A: _M_construct_node<std::pair<boost::asio::ip::basic_endpoint<boost::asio::ip::udp>, vsomeip_v3::server_endpoint_impl
<boost::asio::ip::udp>::endpoint_data_type> > (stl_tree.h:595)
|         |     |       ->05.75% (192,528B) 0x8FAD9A: _M_create_node<std::pair<boost::asio::ip::basic_endpoint<boost::asio::ip::udp>, vsomeip_v3::server_endpoint_impl<
boost::asio::ip::udp>::endpoint_data_type> > (stl_tree.h:612)
|         |     |         ->05.75% (192,528B) 0x8FAD9A: std::pair<std::_Rb_tree_iterator<std::pair<boost::asio::ip::basic_endpoint<boost::asio::ip::udp> const, vsomeip
_v3::server_endpoint_impl<boost::asio::ip::udp>::endpoint_data_type> >, bool> std::_Rb_tree<boost::asio::ip::basic_endpoint<boost::asio::ip::udp>, std::pair<boost::asi
o::ip::basic_endpoint<boost::asio::ip::udp> const, vsomeip_v3::server_endpoint_impl<boost::asio::ip::udp>::endpoint_data_type>, std::_Select1st<std::pair<boost::asio::
ip::basic_endpoint<boost::asio::ip::udp> const, vsomeip_v3::server_endpoint_impl<boost::asio::ip::udp>::endpoint_data_type> >, std::less<boost::asio::ip::basic_endpoin
t<boost::asio::ip::udp> >, std::allocator<std::pair<boost::asio::ip::basic_endpoint<boost::asio::ip::udp> const, vsomeip_v3::server_endpoint_impl<boost::asio::ip::udp>
::endpoint_data_type> > >::_M_emplace_unique<std::pair<boost::asio::ip::basic_endpoint<boost::asio::ip::udp>, vsomeip_v3::server_endpoint_impl<boost::asio::ip::udp>::e
ndpoint_data_type> >(std::pair<boost::asio::ip::basic_endpoint<boost::asio::ip::udp>, vsomeip_v3::server_endpoint_impl<boost::asio::ip::udp>::endpoint_data_type>&&) (s
tl_tree.h:2384)
|         |     |           ->05.75% (192,528B) 0x8F20D2: emplace<std::pair<boost::asio::ip::basic_endpoint<boost::asio::ip::udp>, vsomeip_v3::server_endpoint_impl<boo
st::asio::ip::udp>::endpoint_data_type> > (stl_map.h:577)
|         |     |             ->05.75% (192,528B) 0x8F20D2: vsomeip_v3::server_endpoint_impl<boost::asio::ip::udp>::find_or_create_target_unlocked(boost::asio::ip::bas
ic_endpoint<boost::asio::ip::udp>) (server_endpoint_impl.cpp:421)
|         |     |               ->05.75% (192,528B) 0x8F1820: vsomeip_v3::server_endpoint_impl<boost::asio::ip::udp>::send_intern(boost::asio::ip::basic_endpoint<boost
::asio::ip::udp>, unsigned char const*, unsigned int) (server_endpoint_impl.cpp:257)
|         |     |                 ->05.75% (192,528B) 0x8EDB12: vsomeip_v3::server_endpoint_impl<boost::asio::ip::udp>::send(unsigned char const*, unsigned int) (serve
r_endpoint_impl.cpp:206)
|         |     |                 | ->05.75% (192,528B) 0x88AA24: vsomeip_v3::routing_manager_impl::send(unsigned short, unsigned char const*, unsigned int, unsigned s
hort, bool, unsigned short, vsomeip_sec_client_t const*, unsigned char, bool, bool) (routing_manager_impl.cpp:1092)
|         |     |                 |   ->05.75% (192,528B) 0x8BC3BD: vsomeip_v3::routing_manager_base::send(unsigned short, std::shared_ptr<vsomeip_v3::message>, bool) 
(routing_manager_base.cpp:1030)
|         |     |                 |     ->05.75% (192,528B) 0x889774: vsomeip_v3::routing_manager_impl::send(unsigned short, std::shared_ptr<vsomeip_v3::message>, bool
) (routing_manager_impl.cpp:878)
|         |     |                 |       ->05.75% (192,528B) 0x84F781: vsomeip_v3::application_impl::send(std::shared_ptr<vsomeip_v3::message>) (application_impl.cpp:
915)