m-aXimilian
566dd112ff
For some reason it seems as if UpdateResource is already defined in some (other) dependency of Pixelarium. Instead of throwing around platform specific macros to fix the Windows build for correct mangling, I decided to simply rename the function. Fixes #3
79 lines
2.4 KiB
C++
79 lines
2.4 KiB
C++
#include "resource.hpp"
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#include <atomic>
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#include <optional>
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using pixelarium::imaging::PixelariumImage;
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using namespace std;
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namespace
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{
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/// @brief Atomic counter for generating unique IDs.
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static std::atomic<size_t> id_;
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/// @brief Generates a unique ID.
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/// @return A unique ID.
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size_t GenerateId() { return id_.fetch_add(1, memory_order_relaxed); }
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} // namespace
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/// @brief Retrieves a resource from the pool.
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/// @param id The ID of the resource to retrieve.
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/// @return A pointer to the resource if found, otherwise an empty optional.
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std::optional<const PixelariumImage*> pixelarium::resources::ImageResourcePool::GetResource(size_t id) const
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{
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auto search{this->resources_.find(id)};
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if (search == this->resources_.end()) return std::nullopt;
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return search->second.get();
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}
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/// @brief Sets a resource in the pool.
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/// @param res A unique pointer to the resource to set.
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/// @return The ID of the new resource.
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size_t pixelarium::resources::ImageResourcePool::SetResource(unique_ptr<PixelariumImage> res)
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{
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auto key{::GenerateId()};
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this->resources_.insert({key, std::move(res)});
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return key;
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}
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/// @brief Updates a resource in the pool.
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/// @param id The ID of the resource to update.
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/// @param res A unique pointer to the new resource.
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/// @return True if the resource was updated, false otherwise.
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bool pixelarium::resources::ImageResourcePool::ModifyResource(size_t id, std::unique_ptr<imaging::PixelariumImage> res)
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{
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auto search{this->resources_.find(id)};
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if (search == this->resources_.end()) return false;
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search->second = std::move(res);
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return true;
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}
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/// @brief Deletes a resource from the pool.
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/// @param id The ID of the resource to delete.
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/// @return True if the resource was deleted, false otherwise.
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bool pixelarium::resources::ImageResourcePool::DeleteResource(size_t id)
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{
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auto search{this->resources_.find(id)};
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if (search == this->resources_.end()) return false;
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this->resources_.erase(search);
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return true;
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}
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/// @brief Enumerates all resources in the pool.
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/// @param func A function to call for each resource. The function should accept the resource ID and a const reference
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/// to a PixelariumImage.
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void pixelarium::resources::ImageResourcePool::EnumerateResources(
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const std::function<void(size_t, const imaging::PixelariumImage&)>& func)
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{
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for (const auto& e : this->resources_)
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{
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func(e.first, *e.second);
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}
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}
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