sha512sum/cserver
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

Add constexpr constructor check

Browse source
This commit is contained in:
sha512sum 2024-06-30 11:52:15 +00:00
parent 6408e8f3b4
commit 5dd7fe7903
2 changed files with 71 additions and 29 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

90
include/cserver/engine/components.hpp
View file

@ -12,11 +12,11 @@ struct SeparatedComponent {};
template <typename... Ts>
struct Options : utempl::TypeList<Ts...> {};
template <utempl::ConstexprString name, typename T, Options Options>
template <utempl::ConstexprString Name, typename T, Options Options>
struct ComponentConfig {
using Type = T;
static constexpr auto kOptions = Options;
static constexpr auto kName = name;
static constexpr auto kName = Name;
};
namespace impl {
@ -121,10 +121,43 @@ struct AsyncConditionVariable {
bool flag;
};
template <typename Component, typename T>
struct ServiceContextForComponent {
T& context;
static constexpr auto kConfig = T::kConfig;
static constexpr auto kUtils = T::kUtils;
template <std::size_t I>
constexpr auto FindComponent() -> decltype(this->context.template FindComponent<Component, I>()) {
return this->context.template FindComponent<Component, I>();
};
template <utempl::ConstexprString Name>
constexpr auto FindComponent() -> decltype(FindComponent<kUtils.template GetIndexByName(Name)>()) {
return this->FindComponent<kUtils.template GetIndexByName(Name)>();
};
template <template <typename...> typename F>
constexpr auto FindComponent() -> decltype(this->FindComponent<kUtils.template GetFirstIndex<F>()>()) {
return this->FindComponent<kUtils.template GetFirstIndex<F>()>();
};
template <typename TT>
constexpr auto FindComponent() -> decltype(this->FindComponent<kUtils.template GetIndexByType<TT>()>()) {
return this->FindComponent<kUtils.template GetIndexByType<TT>()>();
};
template <template <typename...> typename F>
constexpr auto FindAllComponents() {
return utempl::Unpack(utempl::PackConstexprWrapper<kUtils.template GetAllIndexes<F>(), utempl::Tuple<>>(),
[&](auto... is) -> utempl::Tuple<decltype(*Get<is>(context.storage))&...> {
return {context.template FindComponent<Component, is>()...};
});
};
};
template <utempl::Tuple DependencyGraph, typename T>
inline constexpr auto InitComponents(T& ccontext) -> void {
static auto& context = ccontext;
static auto& taskProcessor = context.template FindComponent<kBasicTaskProcessorName>();
static auto& taskProcessor = context.taskProcessor;
static auto& ioContext = taskProcessor.ioContext;
static utempl::Tuple inited = TransformDependencyGraphToTupleWithDependenciesToInitedFlagChanges<AsyncConditionVariable, DependencyGraph>(ioContext);
auto work = make_work_guard(ioContext);
@ -134,7 +167,9 @@ inline constexpr auto InitComponents(T& ccontext) -> void {
for(auto* flag : dependencies) {
co_await flag->AsyncWait();
};
Get<Is>(context.storage).emplace(utempl::Wrapper<Get<Is>(T::kUtils.kNames)>{}, context);
ServiceContextForComponent<decltype(Get<Is>(decltype(T::kUtils)::kComponentConfigs)), T> currentContext{context};
Get<Is>(context.storage).emplace(utempl::Wrapper<Get<Is>(T::kUtils.kNames)>{},
currentContext);
auto& componentInitFlag = GetInitFlagFor<AsyncConditionVariable, Is>(ioContext);
componentInitFlag.NotifyAll();
if constexpr(requires{Get<Is>(context.storage)->Run();}) {
@ -206,36 +241,39 @@ struct ServiceContext {
engine::basic::TaskProcessor<kThreadsCount - 1> taskProcessor;
utempl::Tuple<std::optional<typename Ts::Type>...> storage;
inline constexpr ServiceContext() :
constexpr ServiceContext() :
taskProcessor{utempl::Wrapper<utempl::ConstexprString{kBasicTaskProcessorName}>{}, *this}
,storage{} {
};
inline constexpr auto Run() {
constexpr auto Run() {
impl::InitComponents<DependencyGraph>(*this);
this->taskProcessor.Run();
};
template <utempl::ConstexprString name>
inline constexpr auto FindComponent() -> auto& {
return *Get<kUtils.GetIndexByName(name)>(this->storage);
template <typename Component>
constexpr auto GetContextFor() /* Internal Use Only */ {
return impl::ServiceContextForComponent<Component, std::decay_t<decltype(*this)>>{*this};
};
template <template <typename...> typename F>
constexpr auto FindComponent() -> auto& {
return *Get<kUtils.template GetFirstIndex<F>()>(this->storage);
};
template <template <typename...> typename F>
constexpr auto FindAllComponents() {
return utempl::Unpack(utempl::PackConstexprWrapper<kUtils.template GetAllIndexes<F>(), utempl::Tuple<>>(),
[&](auto... is) -> utempl::Tuple<decltype(*Get<is>(storage))&...> {
return {*Get<is>(storage)...};
});
};
template <>
inline constexpr auto FindComponent<kBasicTaskProcessorName>() -> auto& {
template <typename Current, std::size_t I>
constexpr auto FindComponent() -> auto& requires (I == sizeof...(Ts) || requires{*Get<I>(this->storage);}) {
constexpr auto Index = kUtils.GetIndexByName(Current::kName);
if constexpr(I == sizeof...(Ts)) {
return this->taskProcessor;
} else {
constexpr utempl::ConstexprString name = Current::kName;
constexpr Options options = Current::kOptions;
constexpr auto dependencies = Get<Index>(DependencyGraph);
static_assert((
/* Component Type */ std::ignore = utempl::kType<typename Current::Type>,
/* Component Name */ std::ignore = name,
/* Component Options */ std::ignore = options,
dependencies.size() != 0), "Constructor is not declared as constexpr");
return *Get<I>(this->storage);
};
template <typename T>
inline constexpr auto FindComponent() -> T& {
return *Get<kUtils.template GetIndexByType<T>()>(this->storage);
};
};
@ -495,7 +533,7 @@ struct ServiceContextBuilder {
static constexpr auto Run() -> void {
static auto context = GetServiceContext();
context.Run();
context.template FindComponent<kBasicTaskProcessorName>().ioContext.run();
context.taskProcessor.ioContext.run();
};
};
} // namespace cserver

6
tests/all_meta.cpp
View file

@ -36,7 +36,11 @@ TEST(Meta, AllDependencies) {
constexpr auto dependencies = builder.GetDependencyGraph();
using Need = utempl::Tuple<OtherComponent&, OtherComponent2&>;
using R = decltype(builder.GetServiceContext().FindAllComponents<SomeM>());
using R = decltype(
builder
.GetServiceContext()
.GetContextFor<cserver::ComponentConfig<"some", SomeComponent, {}>>()
.FindAllComponents<SomeM>());
EXPECT_EQ(boost::typeindex::type_id<R>().pretty_name(),
boost::typeindex::type_id<Need>().pretty_name());