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XCM: Properly set the pricing for the DMP router (#6843)

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* Properly set the pricing for the DMP router

* Publicize price types

* Use FixedU128 instead of Percent

* Add sp-arithmetic as a dependency for rococo runtime

* Add sp-arithmetic as a dependency to all runtimes

* Remove duplicate import

* Add missing import

* Fix tests

* Create an appropriate QueueDownwardMessageError variant

* Recalculate delivery fee factor based on past queue sizes

* Remove unused error variant

* Fixes

* Fixes

* Remove unused imports

* Rewrite fee factor update mechanism

* Remove unused imports

* Fixes

* Update runtime/parachains/src/dmp.rs

Co-authored-by: Squirrel <gilescope@gmail.com>

* Make DeliveryFeeFactor be a StorageMap keyed on ParaIds

* Fixes

* introduce limit for fee increase on dmp queue

* add message_size based fee factor to increment_fee_factor

* change message_size fee rate to correct value

* fix div by 0 error

* bind limit to variable

* fix message_size_factor and add DeliveryFeeFactor test

* add test for ExponentialPrice implementation

* make test formula based

* make delivery fee factor test formula based

* add max value test for DeliveryFeeFactor and move limit to config

* change threshold back to dynamic value and fix tests

* fmt

* suggested changes and fmt

* small stylistic change

* fmt

* change to tokenlocation

* small fixes

* fmt

* remove sp_arithmetic dependency

* Update runtime/parachains/src/dmp.rs

Co-authored-by: Kian Paimani <5588131+kianenigma@users.noreply.github.com>

---------

Co-authored-by: Squirrel <gilescope@gmail.com>
Co-authored-by: Just van Stam <just.van.stam@gmail.com>
Co-authored-by: Just van Stam <vstam1@users.noreply.github.com>
Co-authored-by: Kian Paimani <5588131+kianenigma@users.noreply.github.com>
This commit is contained in:
Keith Yeung
2023-04-20 19:04:33 +08:00
committed by GitHub
parent b3e2153f2f
commit 023d459857
18 changed files with 351 additions and 45 deletions
Download Patch File Download Diff File Expand all files Collapse all files
polkadot/runtime/kusama/src/lib.rs
+1 -1
View File
@@ -1410,7 +1410,7 @@ construct_runtime! {
ParaScheduler: parachains_scheduler::{Pallet, Storage} = 55,
Paras: parachains_paras::{Pallet, Call, Storage, Event, Config, ValidateUnsigned} = 56,
Initializer: parachains_initializer::{Pallet, Call, Storage} = 57,
Dmp: parachains_dmp::{Pallet, Call, Storage} = 58,
Dmp: parachains_dmp::{Pallet, Storage} = 58,
Ump: parachains_ump::{Pallet, Call, Storage, Event} = 59,
Hrmp: parachains_hrmp::{Pallet, Call, Storage, Event<T>, Config} = 60,
ParaSessionInfo: parachains_session_info::{Pallet, Storage} = 61,
polkadot/runtime/kusama/src/xcm_config.rs
+18 -4
View File
@@ -17,8 +17,9 @@
//! XCM configurations for the Kusama runtime.
use super::{
parachains_origin, AccountId, AllPalletsWithSystem, Balances, Fellows, ParaId, Runtime,
RuntimeCall, RuntimeEvent, RuntimeOrigin, StakingAdmin, WeightToFee, XcmPallet,
parachains_origin, AccountId, AllPalletsWithSystem, Balances, Dmp, Fellows, ParaId, Runtime,
RuntimeCall, RuntimeEvent, RuntimeOrigin, StakingAdmin, TransactionByteFee, WeightToFee,
XcmPallet,
};
use frame_support::{
match_types, parameter_types,
@@ -26,7 +27,12 @@ use frame_support::{
weights::Weight,
};
use frame_system::EnsureRoot;
use runtime_common::{crowdloan, paras_registrar, xcm_sender, ToAuthor};
use kusama_runtime_constants::currency::CENTS;
use runtime_common::{
crowdloan, paras_registrar,
xcm_sender::{ChildParachainRouter, ExponentialPrice},
ToAuthor,
};
use sp_core::ConstU32;
use xcm::latest::prelude::*;
use xcm_builder::{
@@ -101,13 +107,21 @@ parameter_types! {
/// Maximum number of instructions in a single XCM fragment. A sanity check against weight
/// calculations getting too crazy.
pub const MaxInstructions: u32 = 100;
/// The asset ID for the asset that we use to pay for message delivery fees.
pub FeeAssetId: AssetId = Concrete(TokenLocation::get());
/// The base fee for the message delivery fees.
pub const BaseDeliveryFee: u128 = CENTS.saturating_mul(3);
}
/// The XCM router. When we want to send an XCM message, we use this type. It amalgamates all of our
/// individual routers.
pub type XcmRouter = (
// Only one router so far - use DMP to communicate with child parachains.
xcm_sender::ChildParachainRouter<Runtime, XcmPallet, ()>,
ChildParachainRouter<
Runtime,
XcmPallet,
ExponentialPrice<FeeAssetId, BaseDeliveryFee, TransactionByteFee, Dmp>,
>,
);
parameter_types! {