Merge pull request #6441 from bunnei/fix-session-handler

hle: kernel: KServerSession: Fix client disconnected.
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bunnei 2021-06-09 22:53:25 -07:00 committed by GitHub
commit 74f0087bfa
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5 changed files with 21 additions and 17 deletions

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@ -57,11 +57,11 @@ bool SessionRequestManager::HasSessionRequestHandler(const HLERequestContext& co
} }
void SessionRequestHandler::ClientConnected(KServerSession* session) { void SessionRequestHandler::ClientConnected(KServerSession* session) {
session->SetSessionHandler(shared_from_this()); session->ClientConnected(shared_from_this());
} }
void SessionRequestHandler::ClientDisconnected(KServerSession* session) { void SessionRequestHandler::ClientDisconnected(KServerSession* session) {
session->SetSessionHandler(nullptr); session->ClientDisconnected();
} }
HLERequestContext::HLERequestContext(KernelCore& kernel_, Core::Memory::Memory& memory_, HLERequestContext::HLERequestContext(KernelCore& kernel_, Core::Memory::Memory& memory_,

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@ -28,6 +28,9 @@ void KClientPort::Initialize(KPort* parent_port_, s32 max_sessions_, std::string
void KClientPort::OnSessionFinalized() { void KClientPort::OnSessionFinalized() {
KScopedSchedulerLock sl{kernel}; KScopedSchedulerLock sl{kernel};
// This might happen if a session was improperly used with this port.
ASSERT_MSG(num_sessions > 0, "num_sessions is invalid");
const auto prev = num_sessions--; const auto prev = num_sessions--;
if (prev == max_sessions) { if (prev == max_sessions) {
this->NotifyAvailable(); this->NotifyAvailable();
@ -66,7 +69,7 @@ ResultCode KClientPort::CreateSession(KClientSession** out,
// Update the session counts. // Update the session counts.
{ {
// Atomically increment the number of sessions. // Atomically increment the number of sessions.
s32 new_sessions; s32 new_sessions{};
{ {
const auto max = max_sessions; const auto max = max_sessions;
auto cur_sessions = num_sessions.load(std::memory_order_acquire); auto cur_sessions = num_sessions.load(std::memory_order_acquire);

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@ -62,15 +62,14 @@ public:
void OnClientClosed(); void OnClientClosed();
/** void ClientConnected(SessionRequestHandlerPtr handler) {
* Sets the HLE handler for the session. This handler will be called to service IPC requests
* instead of the regular IPC machinery. (The regular IPC machinery is currently not
* implemented.)
*/
void SetSessionHandler(SessionRequestHandlerPtr handler) {
manager->SetSessionHandler(std::move(handler)); manager->SetSessionHandler(std::move(handler));
} }
void ClientDisconnected() {
manager = nullptr;
}
/** /**
* Handle a sync request from the emulated application. * Handle a sync request from the emulated application.
* *

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@ -40,9 +40,11 @@ namespace SM {
class ServiceManager; class ServiceManager;
} }
static const int kMaxPortSize = 8; ///< Maximum size of a port name (8 characters) /// Default number of maximum connections to a server session.
/// Arbitrary default number of maximum connections to an HLE service. static constexpr u32 ServerSessionCountMax = 0x40;
static const u32 DefaultMaxSessions = 0x10000; static_assert(ServerSessionCountMax == 0x40,
"ServerSessionCountMax isn't 0x40 somehow, this assert is a reminder that this will "
"break lots of things");
/** /**
* This is an non-templated base of ServiceFramework to reduce code bloat and compilation times, it * This is an non-templated base of ServiceFramework to reduce code bloat and compilation times, it
@ -178,7 +180,7 @@ protected:
* connected to this service at the same time. * connected to this service at the same time.
*/ */
explicit ServiceFramework(Core::System& system_, const char* service_name_, explicit ServiceFramework(Core::System& system_, const char* service_name_,
u32 max_sessions_ = DefaultMaxSessions) u32 max_sessions_ = ServerSessionCountMax)
: ServiceFrameworkBase(system_, service_name_, max_sessions_, Invoker) {} : ServiceFrameworkBase(system_, service_name_, max_sessions_, Invoker) {}
/// Registers handlers in the service. /// Registers handlers in the service.

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@ -164,18 +164,18 @@ ResultVal<Kernel::KClientSession*> SM::GetServiceImpl(Kernel::HLERequestContext&
R_UNLESS(session_reservation.Succeeded(), Kernel::ResultLimitReached); R_UNLESS(session_reservation.Succeeded(), Kernel::ResultLimitReached);
// Create a new session. // Create a new session.
auto* session = Kernel::KSession::Create(kernel); Kernel::KClientSession* session{};
session->Initialize(&port->GetClientPort(), std::move(name)); port->GetClientPort().CreateSession(std::addressof(session));
// Commit the session reservation. // Commit the session reservation.
session_reservation.Commit(); session_reservation.Commit();
// Enqueue the session with the named port. // Enqueue the session with the named port.
port->EnqueueSession(&session->GetServerSession()); port->EnqueueSession(&session->GetParent()->GetServerSession());
LOG_DEBUG(Service_SM, "called service={} -> session={}", name, session->GetId()); LOG_DEBUG(Service_SM, "called service={} -> session={}", name, session->GetId());
return MakeResult(&session->GetClientSession()); return MakeResult(session);
} }
void SM::RegisterService(Kernel::HLERequestContext& ctx) { void SM::RegisterService(Kernel::HLERequestContext& ctx) {