Oliver Tale-Yazdi 7e7fe99047 [FRAME] Make MQ pallet re-entrancy safe (#2356) ...

Closes https://github.com/paritytech/polkadot-sdk/issues/2319

Changes:
- Ensure that only `enqueue_message(s)` is callable from within the
message processor. This prevents messed up storage that can currently
happen when the pallet is called into recursively.
- Use `H256` instead of `[u8; 32]` for clearer API.

## Details

The re-entracy check is done with the `environmental` crate by adding a
`with_service_mutex(f)` function that runs the closure exclusively. This
works since the MQ pallet is not instantiable.

---------

Signed-off-by: Oliver Tale-Yazdi <oliver.tale-yazdi@parity.io>
Co-authored-by: Francisco Aguirre <franciscoaguirreperez@gmail.com>

2023-12-07 17:48:13 +01:00

..

src

[FRAME] Make MQ pallet re-entrancy safe (#2356)

2023-12-07 17:48:13 +01:00

Cargo.toml

[FRAME] Make MQ pallet re-entrancy safe (#2356)

2023-12-07 17:48:13 +01:00