`message_packet` missing a copy constructor

[opcod3]

Since commit 047fc3eb906c699d052bcb8dfd32f9f0c8c269e4 pushing a message_packet in a queue_mpmc_mutex results in a compiler error.

It appears message_packet is now missing an lvalue reference copy constructor.

The error is the following

etl/queue_mpmc_mutex.h: In instantiation of 'bool etl::iqueue_mpmc_mutex<T, MEMORY_MODEL>::push_implementation(const_reference) [with T = etl::message_packet<...>; unsigned int MEMORY_MODEL = 2; const_reference = const etl::message_packet<...>&]':
queue_mpmc_mutex.h:162:40:   required from 'bool etl::iqueue_mpmc_mutex<T, MEMORY_MODEL>::push(const_reference) [with T = etl::message_packet<...>; unsigned int MEMORY_MODEL = 2; const_reference = const etl::message_packet<...>&]'
my-file.cpp:   required from here
etl/queue_mpmc_mutex.h:429:9: error: use of deleted function 'constexpr etl::message_packet<...>::message_packet(const etl::message_packet<...>&)'
  429 |         ::new (&p_buffer[write_index]) T(value);
      |         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

I've replaced the whole template arguments of message_packet for clarity.

The call that produces the error is the following

_actionQueue.push(action);

adding etl::move like this: _actionQueue.push(etl::move(action)) fixes the error

[jwellbelove]

Are you using C++17 or later?

[opcod3]

Yes I'm using c++17, and compiling with gcc version 12.2.1 20221205 (Arm GNU Toolchain 12.2.Rel1 (Build arm-12.24))

[jwellbelove]

Fixed 20.38.11