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kernel/hle_ipc: Convert std::shared_ptr IPC header instances to std::optional

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There's no real need to use a shared lifetime here, since we don't
actually expose them to anything else. This is also kind of an
unnecessary use of the heap given the objects themselves are so small;
small enough, in fact that changing over to optionals actually reduces
the overall size of the HLERequestContext struct (818 bytes to 808
bytes).
This commit is contained in:
Lioncash 2019-03-07 16:44:28 -05:00
parent 69749a88cd
commit fbb82e61e3
4 changed files with 49 additions and 49 deletions
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15
src/core/hle/kernel/hle_ipc.h
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@ -6,6 +6,7 @@
#include <array>
#include <memory>
#include <optional>
#include <string>
#include <type_traits>
#include <vector>
@ -168,12 +169,12 @@ public:
return buffer_c_desciptors;
}
const IPC::DomainMessageHeader* GetDomainMessageHeader() const {
return domain_message_header.get();
const IPC::DomainMessageHeader& GetDomainMessageHeader() const {
return domain_message_header.value();
}
bool HasDomainMessageHeader() const {
return domain_message_header != nullptr;
return domain_message_header.has_value();
}
/// Helper function to read a buffer using the appropriate buffer descriptor
@ -272,10 +273,10 @@ private:
boost::container::small_vector<SharedPtr<Object>, 8> copy_objects;
boost::container::small_vector<std::shared_ptr<SessionRequestHandler>, 8> domain_objects;
std::shared_ptr<IPC::CommandHeader> command_header;
std::shared_ptr<IPC::HandleDescriptorHeader> handle_descriptor_header;
std::shared_ptr<IPC::DataPayloadHeader> data_payload_header;
std::shared_ptr<IPC::DomainMessageHeader> domain_message_header;
std::optional<IPC::CommandHeader> command_header;
std::optional<IPC::HandleDescriptorHeader> handle_descriptor_header;
std::optional<IPC::DataPayloadHeader> data_payload_header;
std::optional<IPC::DomainMessageHeader> domain_message_header;
std::vector<IPC::BufferDescriptorX> buffer_x_desciptors;
std::vector<IPC::BufferDescriptorABW> buffer_a_desciptors;
std::vector<IPC::BufferDescriptorABW> buffer_b_desciptors;