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https://github.com/yuzu-emu/yuzu.git
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kernel: Fix reference management for client/server session.
- Fixes shutdown crash and crash in Pokemon SwSh.
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6d23b045a0
commit
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@ -16,20 +16,18 @@ ClientSession::ClientSession(KernelCore& kernel) : Object{kernel} {}
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ClientSession::~ClientSession() {
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// This destructor will be called automatically when the last ClientSession handle is closed by
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// the emulated application.
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if (parent->server) {
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parent->server->ClientDisconnected();
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if (auto server = parent->server.lock()) {
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server->ClientDisconnected();
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}
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parent->client = nullptr;
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}
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ResultCode ClientSession::SendSyncRequest(Thread* thread) {
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// Keep ServerSession alive until we're done working with it.
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if (parent->server == nullptr)
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return ERR_SESSION_CLOSED_BY_REMOTE;
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// Signal the server session that new data is available
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return parent->server->HandleSyncRequest(SharedFrom(thread));
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if (auto server = parent->server.lock()) {
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return server->HandleSyncRequest(SharedFrom(thread));
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}
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return ERR_SESSION_CLOSED_BY_REMOTE;
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}
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} // namespace Kernel
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@ -31,8 +31,6 @@ ServerSession::~ServerSession() {
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if (parent->port) {
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parent->port->ConnectionClosed();
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}
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parent->server = nullptr;
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}
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ResultVal<std::shared_ptr<ServerSession>> ServerSession::Create(KernelCore& kernel,
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@ -46,11 +44,13 @@ ResultVal<std::shared_ptr<ServerSession>> ServerSession::Create(KernelCore& kern
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}
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bool ServerSession::ShouldWait(const Thread* thread) const {
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// Closed sessions should never wait, an error will be returned from svcReplyAndReceive.
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if (parent->client == nullptr)
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return false;
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// Wait if we have no pending requests, or if we're currently handling a request.
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return pending_requesting_threads.empty() || currently_handling != nullptr;
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if (auto client = parent->client.lock()) {
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return pending_requesting_threads.empty() || currently_handling != nullptr;
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}
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// Closed sessions should never wait, an error will be returned from svcReplyAndReceive.
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return {};
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}
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void ServerSession::Acquire(Thread* thread) {
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@ -192,9 +192,9 @@ ServerSession::SessionPair ServerSession::CreateSessionPair(KernelCore& kernel,
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std::shared_ptr<ClientSession> client_session = std::make_shared<ClientSession>(kernel);
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client_session->name = name + "_Client";
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std::shared_ptr<Session> parent(new Session);
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parent->client = client_session.get();
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parent->server = server_session.get();
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std::shared_ptr<Session> parent = std::make_shared<Session>();
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parent->client = client_session;
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parent->server = server_session;
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parent->port = std::move(port);
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client_session->parent = parent;
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@ -20,8 +20,8 @@ class ServerSession;
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*/
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class Session final {
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public:
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ClientSession* client = nullptr; ///< The client endpoint of the session.
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ServerSession* server = nullptr; ///< The server endpoint of the session.
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std::weak_ptr<ClientSession> client; ///< The client endpoint of the session.
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std::weak_ptr<ServerSession> server; ///< The server endpoint of the session.
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std::shared_ptr<ClientPort> port; ///< The port that this session is associated with (optional).
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};
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} // namespace Kernel
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