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
|
// Copyright 2022 Huawei Cloud Computing Technology Co., Ltd.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#ifndef INCLUDED_SRC_BUILDTOOL_STORAGE_STORAGE_HPP
#define INCLUDED_SRC_BUILDTOOL_STORAGE_STORAGE_HPP
#include <cstddef>
#include <memory>
#include "gsl/gsl"
#include "src/buildtool/crypto/hash_function.hpp"
#include "src/buildtool/storage/config.hpp"
#include "src/buildtool/storage/local_ac.hpp"
#include "src/buildtool/storage/local_cas.hpp"
#include "src/buildtool/storage/target_cache.hpp"
#include "src/buildtool/storage/uplinker.hpp"
#include "src/utils/cpp/gsl.hpp"
/// \brief The local storage for accessing CAS and caches.
/// Maintains an instance of LocalCAS, LocalAC, TargetCache. Supports global
/// uplinking across all generations. The uplink is automatically performed by
/// the affected storage instance (CAS, action cache, target cache).
/// \tparam kDoGlobalUplink Enable global uplinking.
template <bool kDoGlobalUplink>
class LocalStorage final {
public:
static constexpr std::size_t kYoungest = 0U;
using Uplinker_t = Uplinker<kDoGlobalUplink>;
using CAS_t = LocalCAS<kDoGlobalUplink>;
using AC_t = LocalAC<kDoGlobalUplink>;
using TC_t = ::TargetCache<kDoGlobalUplink>;
[[nodiscard]] static auto Create(
gsl::not_null<StorageConfig const*> const& storage_config,
std::size_t generation = kYoungest) -> LocalStorage<kDoGlobalUplink> {
if constexpr (kDoGlobalUplink) {
// It is not allowed to enable uplinking for old generations.
EnsuresAudit(generation == kYoungest);
}
auto gen_config = storage_config->CreateGenerationConfig(generation);
return LocalStorage<kDoGlobalUplink>{gen_config};
}
[[nodiscard]] auto GetHashFunction() const noexcept -> HashFunction {
return cas_->GetHashFunction();
}
/// \brief Get the CAS instance.
[[nodiscard]] auto CAS() const noexcept -> CAS_t const& { return *cas_; }
/// \brief Get the action cache instance.
[[nodiscard]] auto ActionCache() const noexcept -> AC_t const& {
return *ac_;
}
/// \brief Get the target cache instance.
[[nodiscard]] auto TargetCache() const noexcept -> TC_t const& {
return *tc_;
}
private:
std::unique_ptr<Uplinker_t const> uplinker_;
std::unique_ptr<CAS_t const> cas_;
std::unique_ptr<AC_t const> ac_;
std::unique_ptr<TC_t const> tc_;
explicit LocalStorage(GenerationConfig const& config)
: uplinker_{std::make_unique<Uplinker_t>(config.storage_config)},
cas_{std::make_unique<CAS_t>(config, &*uplinker_)},
ac_{std::make_unique<AC_t>(&*cas_, config, &*uplinker_)},
tc_{std::make_unique<TC_t>(&*cas_, config, &*uplinker_)} {}
};
#ifdef BOOTSTRAP_BUILD_TOOL
// disable global uplinking
constexpr auto kDefaultDoGlobalUplink = false;
#else
constexpr auto kDefaultDoGlobalUplink = true;
#endif
/// \brief Generation type, local storage without global uplinking.
using Generation = LocalStorage</*kDoGlobalUplink=*/false>;
using Storage = LocalStorage<kDefaultDoGlobalUplink>;
#endif // INCLUDED_SRC_BUILDTOOL_STORAGE_STORAGE_HPP
|
