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Add Basic XCM (#1934)

Browse Source 
* basic setup

* fix compile

* add back xcmsink

* Update primitives.rs

* add downward xcm for sudo

* Update paras_sudo_wrapper.rs

* Update Cargo.lock

* some cleanups

* Add error log

Co-authored-by: Sergei Shulepov <sergei@parity.io>
This commit is contained in:
Shawn Tabrizi
2020-12-14 02:11:08 -08:00
committed by GitHub
parent a5fe710cc6
commit adaa63098b
7 changed files with 108 additions and 4 deletions
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polkadot/runtime/common/src/paras_sudo_wrapper.rs
+4 -3
View File
@@ -28,6 +28,7 @@ use runtime_parachains::{
configuration, dmp, ump, hrmp, paras::{self, ParaGenesisArgs},
};
use primitives::v1::Id as ParaId;
use parity_scale_codec::Encode;
/// The module's configuration trait.
pub trait Config:
@@ -73,16 +74,16 @@ decl_module! {
Ok(())
}
/// Send a downward message to the given para.
/// Send a downward XCM to the given para.
///
/// The given parachain should exist and the payload should not exceed the preconfigured size
/// `config.max_downward_message_size`.
#[weight = (1_000, DispatchClass::Operational)]
pub fn sudo_queue_downward_message(origin, id: ParaId, payload: Vec<u8>) -> DispatchResult {
pub fn sudo_queue_downward_xcm(origin, id: ParaId, xcm: xcm::VersionedXcm) -> DispatchResult {
ensure_root(origin)?;
ensure!(<paras::Module<T>>::is_valid_para(id), Error::<T>::ParaDoesntExist);
let config = <configuration::Module<T>>::config();
<dmp::Module<T>>::queue_downward_message(&config, id, payload)
<dmp::Module<T>>::queue_downward_message(&config, id, xcm.encode())
.map_err(|e| match e {
dmp::QueueDownwardMessageError::ExceedsMaxMessageSize =>
Error::<T>::ExceedsMaxMessageSize.into(),