27ce97fd42
- Previously, we would allocate a thread per session, which adds new threads on CloneCurrentObject. - This results in race conditions with N sessions queuing requests to the same service interface. - Fixes Pokken Tournament DX crashes/softlocks, which were regressed by #6347.
87 lines
2.2 KiB
C++
87 lines
2.2 KiB
C++
// Copyright 2021 yuzu emulator team
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// Licensed under GPLv2 or any later version
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// Refer to the license.txt file included.
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#include "common/assert.h"
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#include "core/hle/kernel/k_client_port.h"
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#include "core/hle/kernel/k_client_session.h"
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#include "core/hle/kernel/k_scoped_resource_reservation.h"
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#include "core/hle/kernel/k_server_session.h"
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#include "core/hle/kernel/k_session.h"
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namespace Kernel {
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KSession::KSession(KernelCore& kernel_)
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: KAutoObjectWithSlabHeapAndContainer{kernel_}, server{kernel_}, client{kernel_} {}
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KSession::~KSession() = default;
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void KSession::Initialize(KClientPort* port_, const std::string& name_,
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std::shared_ptr<SessionRequestManager> manager_) {
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// Increment reference count.
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// Because reference count is one on creation, this will result
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// in a reference count of two. Thus, when both server and client are closed
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// this object will be destroyed.
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Open();
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// Create our sub sessions.
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KAutoObject::Create(std::addressof(server));
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KAutoObject::Create(std::addressof(client));
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// Initialize our sub sessions.
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server.Initialize(this, name_ + ":Server", manager_);
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client.Initialize(this, name_ + ":Client");
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// Set state and name.
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SetState(State::Normal);
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name = name_;
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// Set our owner process.
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process = kernel.CurrentProcess();
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process->Open();
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// Set our port.
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port = port_;
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if (port != nullptr) {
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port->Open();
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}
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// Mark initialized.
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initialized = true;
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}
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void KSession::Finalize() {
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if (port == nullptr) {
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return;
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}
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port->OnSessionFinalized();
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port->Close();
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}
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void KSession::OnServerClosed() {
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if (GetState() != State::Normal) {
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return;
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}
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SetState(State::ServerClosed);
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client.OnServerClosed();
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}
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void KSession::OnClientClosed() {
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if (GetState() != State::Normal) {
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return;
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}
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SetState(State::ClientClosed);
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server.OnClientClosed();
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}
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void KSession::PostDestroy(uintptr_t arg) {
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// Release the session count resource the owner process holds.
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KProcess* owner = reinterpret_cast<KProcess*>(arg);
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owner->GetResourceLimit()->Release(LimitableResource::Sessions, 1);
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owner->Close();
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}
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} // namespace Kernel
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