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Drop superfluous mutex lock & don't manually unpack std::tuple

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This commit is contained in:
Yonas Habteab 2025-03-13 16:37:26 +01:00
parent 693d094ebc
commit 864e2aaae0
1 changed files with 8 additions and 13 deletions
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21
lib/icinga/dependency-group.cpp
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@ -138,7 +138,6 @@ std::vector<Dependency::Ptr> DependencyGroup::GetDependenciesForChild(const Chec
*/
void DependencyGroup::LoadParents(std::set<Checkable::Ptr>& parents) const
{
std::lock_guard lock(m_Mutex);
for (auto& [compositeKey, children] : m_Members) {
parents.insert(std::get<0>(compositeKey));
}
@ -203,7 +202,7 @@ void DependencyGroup::RemoveDependency(const Dependency::Ptr& dependency)
/**
* Copy the dependency objects of the current dependency group to the provided dependency group (destination).
*
* @param dest The dependency group to move the dependencies to.
* @param dest The dependency group to copy the dependencies to.
*/
void DependencyGroup::CopyDependenciesTo(const DependencyGroup::Ptr& dest)
{
@ -274,12 +273,9 @@ String DependencyGroup::GetCompositeKey()
// not achievable using pointers.
using StringTuple = std::tuple<String, String, int, bool>;
std::vector<StringTuple> compositeKeys;
{
std::lock_guard lock(m_Mutex);
for (auto& [compositeKey, _] : m_Members) {
auto [parent, tp, stateFilter, ignoreSoftStates] = compositeKey;
compositeKeys.emplace_back(parent->GetName(), tp ? tp->GetName() : "", stateFilter, ignoreSoftStates);
}
for (auto& [compositeKey, _] : m_Members) {
auto [parent, tp, stateFilter, ignoreSoftStates] = compositeKey;
compositeKeys.emplace_back(parent->GetName(), tp ? tp->GetName() : "", stateFilter, ignoreSoftStates);
}
// IMPORTANT: The order of the composite keys must be sorted to ensure the deterministic hash value.
@ -287,11 +283,10 @@ String DependencyGroup::GetCompositeKey()
Array::Ptr data(new Array{GetRedundancyGroupName()});
for (auto& compositeKey : compositeKeys) {
auto [parent, tp, stateFilter, ignoreSoftStates] = compositeKey;
data->Add(std::move(parent));
data->Add(std::move(tp));
data->Add(stateFilter);
data->Add(ignoreSoftStates);
// std::apply is used to unpack the composite key tuple and add its elements to the data array.
// It's like manually expanding the tuple into x variables and then adding them one by one to the array.
// See https://en.cppreference.com/w/cpp/language/fold for more information.
std::apply([&data](auto&&... args) { (data->Add(std::move(args)), ...); }, std::move(compositeKey));
}
return PackObject(data);