1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126

// Copyright 2019-2022 PureStake Inc.
// This file is part of Moonbeam.

// Moonbeam is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.

// Moonbeam is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public License for more details.

// You should have received a copy of the GNU General Public License
// along with Moonbeam.  If not, see <http://www.gnu.org/licenses/>.

// This file contains the ExecutiveHooks type which is intended to be used
// with frame_executive::Executive. This instructs which pallets execute
// hooks in each of the normal and maintenance modes.
use super::*;
use frame_support::{
    traits::{OffchainWorker, OnFinalize, OnIdle, OnInitialize, OnRuntimeUpgrade},
    weights::Weight,
};
use frame_system::pallet_prelude::BlockNumberFor;

use sp_std::marker::PhantomData;
#[cfg(feature = "try-runtime")]
use sp_std::vec::Vec;

pub struct ExecutiveHooks<T>(PhantomData<T>);

impl<T> OnIdle<BlockNumberFor<T>> for ExecutiveHooks<T>
where
    T: Config,
{
    fn on_idle(n: BlockNumberFor<T>, remaining_weight: Weight) -> Weight {
        if Pallet::<T>::maintenance_mode() {
            T::MaintenanceExecutiveHooks::on_idle(n, remaining_weight)
        } else {
            T::NormalExecutiveHooks::on_idle(n, remaining_weight)
        }
    }
}

impl<T> OnInitialize<BlockNumberFor<T>> for ExecutiveHooks<T>
where
    T: Config,
{
    fn on_initialize(n: BlockNumberFor<T>) -> Weight {
        if Pallet::<T>::maintenance_mode() {
            T::MaintenanceExecutiveHooks::on_initialize(n)
        } else {
            T::NormalExecutiveHooks::on_initialize(n)
        }
    }
}

impl<T> OnFinalize<BlockNumberFor<T>> for ExecutiveHooks<T>
where
    T: Config,
{
    fn on_finalize(n: BlockNumberFor<T>) {
        if Pallet::<T>::maintenance_mode() {
            T::MaintenanceExecutiveHooks::on_finalize(n)
        } else {
            T::NormalExecutiveHooks::on_finalize(n)
        }
    }
}

impl<T> OffchainWorker<BlockNumberFor<T>> for ExecutiveHooks<T>
where
    T: Config,
{
    fn offchain_worker(n: BlockNumberFor<T>) {
        if Pallet::<T>::maintenance_mode() {
            T::MaintenanceExecutiveHooks::offchain_worker(n)
        } else {
            T::NormalExecutiveHooks::offchain_worker(n)
        }
    }
}

impl<T> OnRuntimeUpgrade for ExecutiveHooks<T>
where
    T: Config,
{
    fn on_runtime_upgrade() -> Weight {
        if Pallet::<T>::maintenance_mode() {
            T::MaintenanceExecutiveHooks::on_runtime_upgrade()
        } else {
            T::NormalExecutiveHooks::on_runtime_upgrade()
        }
    }

    #[cfg(feature = "try-runtime")]
    fn pre_upgrade() -> Result<Vec<u8>, &'static str> {
        if Pallet::<T>::maintenance_mode() {
            T::MaintenanceExecutiveHooks::pre_upgrade()
        } else {
            T::NormalExecutiveHooks::pre_upgrade()
        }
    }

    #[cfg(feature = "try-runtime")]
    fn post_upgrade(state: Vec<u8>) -> Result<(), &'static str> {
        if Pallet::<T>::maintenance_mode() {
            T::MaintenanceExecutiveHooks::post_upgrade(state)
        } else {
            T::NormalExecutiveHooks::post_upgrade(state)
        }
    }
}

#[cfg(feature = "try-runtime")]
impl<T: frame_system::Config> frame_support::traits::TryState<BlockNumberFor<T>>
    for ExecutiveHooks<T>
{
    fn try_state(
        _: BlockNumberFor<T>,
        _: frame_support::traits::TryStateSelect,
    ) -> Result<(), &'static str> {
        Ok(())
    }
}