Merge pull request #556 from opentensor/refactor/hotkey_swap

Refactor/hotkey swap

justfile

@@ -35,6 +35,11 @@ clippy-fix:
         -A clippy::todo \
         -A clippy::unimplemented \
         -A clippy::indexing_slicing
+    @echo "Running cargo clippy with automatic fixes on potentially dirty code..."
+    cargo +{{RUSTV}} clippy --fix --allow-dirty --workspace --all-targets -- \
+        -A clippy::todo \
+        -A clippy::unimplemented \
+        -A clippy::indexing_slicing
 fix:
   @echo "Running cargo fix..."
   cargo +{{RUSTV}} fix --workspace
@@ -46,5 +51,4 @@ lint:
   @echo "Running cargo clippy with automatic fixes on potentially dirty code..."
   just clippy-fix
   @echo "Running cargo clippy..."
-  just clippy
-
+  just clippy

pallets/admin-utils/tests/mock.rs

@@ -110,6 +110,7 @@ parameter_types! {
     pub const InitialSubnetLimit: u16 = 10; // Max 10 subnets.
     pub const InitialNetworkRateLimit: u64 = 0;
     pub const InitialTargetStakesPerInterval: u16 = 1;
+    pub const InitialHotkeySwapCost: u64 = 1_000_000_000;
     pub const InitialAlphaHigh: u16 = 58982; // Represents 0.9 as per the production default
     pub const InitialAlphaLow: u16 = 45875; // Represents 0.7 as per the production default
     pub const InitialLiquidAlphaOn: bool = false; // Default value for LiquidAlphaOn
@@ -164,6 +165,7 @@ impl pallet_subtensor::Config for Test {
     type InitialSubnetLimit = InitialSubnetLimit;
     type InitialNetworkRateLimit = InitialNetworkRateLimit;
     type InitialTargetStakesPerInterval = InitialTargetStakesPerInterval;
+    type HotkeySwapCost = InitialHotkeySwapCost;
     type AlphaHigh = InitialAlphaHigh;
     type AlphaLow = InitialAlphaLow;
     type LiquidAlphaOn = InitialLiquidAlphaOn;

pallets/subtensor/src/lib.rs

@@ -43,6 +43,7 @@ mod registration;
 mod root;
 mod serving;
 mod staking;
+mod swap;
 mod uids;
 mod utils;
 mod weights;
@@ -238,6 +239,9 @@ pub mod pallet {
         /// Initial target stakes per interval issuance.
         #[pallet::constant]
         type InitialTargetStakesPerInterval: Get<u64>;
+        /// Cost of swapping a hotkey.
+        #[pallet::constant]
+        type HotkeySwapCost: Get<u64>;
         /// The upper bound for the alpha parameter. Used for Liquid Alpha.
         #[pallet::constant]
         type AlphaHigh: Get<u16>;
@@ -740,7 +744,7 @@ pub mod pallet {
     pub(super) type TxDelegateTakeRateLimit<T> =
         StorageValue<_, u64, ValueQuery, DefaultTxDelegateTakeRateLimit<T>>;
     #[pallet::storage] // --- MAP ( key ) --> last_block
-    pub(super) type LastTxBlock<T: Config> =
+    pub type LastTxBlock<T: Config> =
         StorageMap<_, Identity, T::AccountId, u64, ValueQuery, DefaultLastTxBlock<T>>;
     #[pallet::storage] // --- MAP ( key ) --> last_block
     pub(super) type LastTxBlockDelegateTake<T: Config> =
@@ -756,10 +760,10 @@ pub mod pallet {
     pub type ServingRateLimit<T> =
         StorageMap<_, Identity, u16, u64, ValueQuery, DefaultServingRateLimit<T>>;
     #[pallet::storage] // --- MAP ( netuid, hotkey ) --> axon_info
-    pub(super) type Axons<T: Config> =
+    pub type Axons<T: Config> =
         StorageDoubleMap<_, Identity, u16, Blake2_128Concat, T::AccountId, AxonInfoOf, OptionQuery>;
     #[pallet::storage] // --- MAP ( netuid, hotkey ) --> prometheus_info
-    pub(super) type Prometheus<T: Config> = StorageDoubleMap<
+    pub type Prometheus<T: Config> = StorageDoubleMap<
         _,
         Identity,
         u16,
@@ -1013,13 +1017,13 @@ pub mod pallet {
     }
 
     #[pallet::storage] // --- DMAP ( netuid, hotkey ) --> uid
-    pub(super) type Uids<T: Config> =
+    pub type Uids<T: Config> =
         StorageDoubleMap<_, Identity, u16, Blake2_128Concat, T::AccountId, u16, OptionQuery>;
     #[pallet::storage] // --- DMAP ( netuid, uid ) --> hotkey
-    pub(super) type Keys<T: Config> =
+    pub type Keys<T: Config> =
         StorageDoubleMap<_, Identity, u16, Identity, u16, T::AccountId, ValueQuery, DefaultKey<T>>;
     #[pallet::storage] // --- DMAP ( netuid ) --> (hotkey, se, ve)
-    pub(super) type LoadedEmission<T: Config> =
+    pub type LoadedEmission<T: Config> =
         StorageMap<_, Identity, u16, Vec<(T::AccountId, u64, u64)>, OptionQuery>;
 
     #[pallet::storage] // --- DMAP ( netuid ) --> active

pallets/subtensor/src/registration.rs

@@ -1,6 +1,5 @@
 use super::*;
-use frame_support::storage::IterableStorageDoubleMap;
-use sp_core::{Get, H256, U256};
+use sp_core::{H256, U256};
 use sp_io::hashing::{keccak_256, sha2_256};
 use sp_runtime::Saturating;
 use system::pallet_prelude::BlockNumberFor;
@@ -395,7 +394,7 @@ impl<T: Config> Pallet<T> {
         UsedWork::<T>::insert(work.clone(), current_block_number);
 
         // --- 5. Add Balance via faucet.
-        let balance_to_add: u64 = 100_000_000_000;
+        let balance_to_add: u64 = 1_000_000_000_000;
         Self::coinbase(100_000_000_000); // We are creating tokens here from the coinbase.
 
         Self::add_balance_to_coldkey_account(&coldkey, balance_to_add);
@@ -591,140 +590,4 @@ impl<T: Config> Pallet<T> {
         let vec_work: Vec<u8> = Self::hash_to_vec(work);
         (nonce, vec_work)
     }
-
-    pub fn do_swap_hotkey(
-        origin: T::RuntimeOrigin,
-        old_hotkey: &T::AccountId,
-        new_hotkey: &T::AccountId,
-    ) -> DispatchResultWithPostInfo {
-        let coldkey = ensure_signed(origin)?;
-
-        let mut weight = T::DbWeight::get().reads_writes(2, 0);
-        ensure!(
-            Self::coldkey_owns_hotkey(&coldkey, old_hotkey),
-            Error::<T>::NonAssociatedColdKey
-        );
-
-        let block: u64 = Self::get_current_block_as_u64();
-        ensure!(
-            !Self::exceeds_tx_rate_limit(Self::get_last_tx_block(&coldkey), block),
-            Error::<T>::HotKeySetTxRateLimitExceeded
-        );
-
-        weight.saturating_accrue(T::DbWeight::get().reads(2));
-
-        ensure!(old_hotkey != new_hotkey, Error::<T>::NewHotKeyIsSameWithOld);
-        ensure!(
-            !Self::is_hotkey_registered_on_any_network(new_hotkey),
-            Error::<T>::HotKeyAlreadyRegisteredInSubNet
-        );
-
-        weight.saturating_accrue(
-            T::DbWeight::get().reads((TotalNetworks::<T>::get().saturating_add(1)) as u64),
-        );
-
-        let swap_cost = 1_000_000_000u64;
-        ensure!(
-            Self::can_remove_balance_from_coldkey_account(&coldkey, swap_cost),
-            Error::<T>::NotEnoughBalanceToPaySwapHotKey
-        );
-        let actual_burn_amount = Self::remove_balance_from_coldkey_account(&coldkey, swap_cost)?;
-        Self::burn_tokens(actual_burn_amount);
-
-        Owner::<T>::remove(old_hotkey);
-        Owner::<T>::insert(new_hotkey, coldkey.clone());
-        weight.saturating_accrue(T::DbWeight::get().writes(2));
-
-        if let Ok(total_hotkey_stake) = TotalHotkeyStake::<T>::try_get(old_hotkey) {
-            TotalHotkeyStake::<T>::remove(old_hotkey);
-            TotalHotkeyStake::<T>::insert(new_hotkey, total_hotkey_stake);
-
-            weight.saturating_accrue(T::DbWeight::get().writes(2));
-        }
-
-        if let Ok(delegate_take) = Delegates::<T>::try_get(old_hotkey) {
-            Delegates::<T>::remove(old_hotkey);
-            Delegates::<T>::insert(new_hotkey, delegate_take);
-
-            weight.saturating_accrue(T::DbWeight::get().writes(2));
-        }
-
-        if let Ok(last_tx) = LastTxBlock::<T>::try_get(old_hotkey) {
-            LastTxBlock::<T>::remove(old_hotkey);
-            LastTxBlock::<T>::insert(new_hotkey, last_tx);
-
-            weight.saturating_accrue(T::DbWeight::get().writes(2));
-        }
-
-        let mut coldkey_stake: Vec<(T::AccountId, u64)> = vec![];
-        for (coldkey, stake_amount) in Stake::<T>::iter_prefix(old_hotkey) {
-            coldkey_stake.push((coldkey.clone(), stake_amount));
-        }
-
-        let _ = Stake::<T>::clear_prefix(old_hotkey, coldkey_stake.len() as u32, None);
-        weight.saturating_accrue(T::DbWeight::get().writes(coldkey_stake.len() as u64));
-
-        for (coldkey, stake_amount) in coldkey_stake {
-            Stake::<T>::insert(new_hotkey, coldkey, stake_amount);
-            weight.saturating_accrue(T::DbWeight::get().writes(1));
-        }
-
-        let mut netuid_is_member: Vec<u16> = vec![];
-        for netuid in <IsNetworkMember<T> as IterableStorageDoubleMap<T::AccountId, u16, bool>>::iter_key_prefix(old_hotkey) {
-            netuid_is_member.push(netuid);
-        }
-
-        let _ = IsNetworkMember::<T>::clear_prefix(old_hotkey, netuid_is_member.len() as u32, None);
-        weight.saturating_accrue(T::DbWeight::get().writes(netuid_is_member.len() as u64));
-
-        for netuid in netuid_is_member.iter() {
-            IsNetworkMember::<T>::insert(new_hotkey, netuid, true);
-            weight.saturating_accrue(T::DbWeight::get().writes(1));
-        }
-
-        for netuid in netuid_is_member.iter() {
-            if let Ok(axon_info) = Axons::<T>::try_get(netuid, old_hotkey) {
-                Axons::<T>::remove(netuid, old_hotkey);
-                Axons::<T>::insert(netuid, new_hotkey, axon_info);
-
-                weight.saturating_accrue(T::DbWeight::get().writes(2));
-            }
-        }
-
-        for netuid in netuid_is_member.iter() {
-            if let Ok(uid) = Uids::<T>::try_get(netuid, old_hotkey) {
-                Uids::<T>::remove(netuid, old_hotkey);
-                Uids::<T>::insert(netuid, new_hotkey, uid);
-
-                weight.saturating_accrue(T::DbWeight::get().writes(2));
-
-                Keys::<T>::insert(netuid, uid, new_hotkey);
-
-                weight.saturating_accrue(T::DbWeight::get().writes(1));
-
-                LoadedEmission::<T>::mutate(netuid, |emission_exists| match emission_exists {
-                    Some(emissions) => {
-                        if let Some(emission) = emissions.get_mut(uid as usize) {
-                            let (_, se, ve) = emission;
-                            *emission = (new_hotkey.clone(), *se, *ve);
-                        }
-                    }
-                    None => {}
-                });
-
-                weight.saturating_accrue(T::DbWeight::get().writes(1));
-            }
-        }
-
-        Self::set_last_tx_block(&coldkey, block);
-        weight.saturating_accrue(T::DbWeight::get().writes(1));
-
-        Self::deposit_event(Event::HotkeySwapped {
-            coldkey,
-            old_hotkey: old_hotkey.clone(),
-            new_hotkey: new_hotkey.clone(),
-        });
-
-        Ok(Some(weight).into())
-    }
 }