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[hle] inline HLE cmif request to not allocate on heap stuff (#3605)

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so basically each construction of HLEContext and whatever would result in a heap allocation (atleast 1)

so what if instead of that we did a memset() at ctor time and we avoided heap allocations altogether?

reminder that std::vector<> CAN do small object optimisation but it's not guaranteed

Signed-off-by: lizzie <lizzie@eden-emu.dev>

Reviewed-on: https://git.eden-emu.dev/eden-emu/eden/pulls/3605
Reviewed-by: crueter <crueter@eden-emu.dev>
This commit is contained in:
lizzie
2026-05-15 22:07:03 +02:00
committed by crueter
parent 975aa4e2f2
commit 413c7543ba
4 changed files with 48 additions and 41 deletions
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src/core/hle/service/hle_ipc.cpp
+6 -12
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@@ -128,10 +128,12 @@ Result SessionRequestManager::HandleDomainSyncRequest(Kernel::KServerSession* se
return ResultSuccess;
}
HLERequestContext::HLERequestContext(Kernel::KernelCore& kernel_, Core::Memory::Memory& memory_,
Kernel::KServerSession* server_session_,
Kernel::KThread* thread_)
: server_session(server_session_), thread(thread_), kernel{kernel_}, memory{memory_} {
HLERequestContext::HLERequestContext(Kernel::KernelCore& kernel_, Core::Memory::Memory& memory_, Kernel::KServerSession* server_session_, Kernel::KThread* thread_)
: server_session(server_session_)
, thread(thread_)
, kernel{kernel_}
, memory{memory_}
{
cmd_buf[0] = 0;
}
@@ -155,9 +157,6 @@ void HLERequestContext::ParseCommandBuffer(u32_le* src_cmdbuf, bool incoming) {
}
if (incoming) {
// Populate the object lists with the data in the IPC request.
incoming_copy_handles.reserve(handle_descriptor_header->num_handles_to_copy);
incoming_move_handles.reserve(handle_descriptor_header->num_handles_to_move);
for (u32 handle = 0; handle < handle_descriptor_header->num_handles_to_copy; ++handle) {
incoming_copy_handles.push_back(rp.Pop<Handle>());
}
@@ -172,11 +171,6 @@ void HLERequestContext::ParseCommandBuffer(u32_le* src_cmdbuf, bool incoming) {
}
}
buffer_x_descriptors.reserve(command_header->num_buf_x_descriptors);
buffer_a_descriptors.reserve(command_header->num_buf_a_descriptors);
buffer_b_descriptors.reserve(command_header->num_buf_b_descriptors);
buffer_w_descriptors.reserve(command_header->num_buf_w_descriptors);
for (u32 i = 0; i < command_header->num_buf_x_descriptors; ++i) {
buffer_x_descriptors.push_back(rp.PopRaw<IPC::BufferDescriptorX>());
}