From 626f746971d1d3216a38b20680959df3a1f5f256 Mon Sep 17 00:00:00 2001 From: bunnei Date: Fri, 23 Apr 2021 17:00:15 -0700 Subject: hle: kernel: Migrate KPort, KClientPort, and KServerPort to KAutoObject. --- src/core/hle/kernel/hle_ipc.cpp | 10 +-- src/core/hle/kernel/hle_ipc.h | 10 +-- src/core/hle/kernel/init/init_slab_setup.cpp | 4 +- src/core/hle/kernel/k_client_port.cpp | 119 +++++++++++++++++++++------ src/core/hle/kernel/k_client_port.h | 46 ++++++----- src/core/hle/kernel/k_event.h | 2 +- src/core/hle/kernel/k_port.cpp | 68 +++++++++++++++ src/core/hle/kernel/k_port.h | 87 ++++++++++++++++++++ src/core/hle/kernel/k_server_port.cpp | 94 +++++++++++++++------ src/core/hle/kernel/k_server_port.h | 55 ++++++------- src/core/hle/kernel/k_server_session.cpp | 2 +- src/core/hle/kernel/k_server_session.h | 5 +- src/core/hle/kernel/k_session.cpp | 18 +++- src/core/hle/kernel/k_session.h | 2 +- src/core/hle/kernel/kernel.h | 6 +- src/core/hle/kernel/svc.cpp | 22 +++-- src/core/hle/kernel/svc_results.h | 1 + 17 files changed, 413 insertions(+), 138 deletions(-) create mode 100644 src/core/hle/kernel/k_port.cpp create mode 100644 src/core/hle/kernel/k_port.h (limited to 'src/core/hle/kernel') diff --git a/src/core/hle/kernel/hle_ipc.cpp b/src/core/hle/kernel/hle_ipc.cpp index 9e1e63204..ddff9ce99 100644 --- a/src/core/hle/kernel/hle_ipc.cpp +++ b/src/core/hle/kernel/hle_ipc.cpp @@ -35,14 +35,12 @@ SessionRequestHandler::SessionRequestHandler() = default; SessionRequestHandler::~SessionRequestHandler() = default; -void SessionRequestHandler::ClientConnected(KSession* session) { - session->GetServerSession().SetHleHandler(shared_from_this()); - sessions.push_back(session); +void SessionRequestHandler::ClientConnected(KServerSession* session) { + session->SetHleHandler(shared_from_this()); } -void SessionRequestHandler::ClientDisconnected(KSession* session) { - session->GetServerSession().SetHleHandler(nullptr); - boost::range::remove_erase(sessions, session); +void SessionRequestHandler::ClientDisconnected(KServerSession* session) { + session->SetHleHandler(nullptr); } HLERequestContext::HLERequestContext(KernelCore& kernel_, Core::Memory::Memory& memory_, diff --git a/src/core/hle/kernel/hle_ipc.h b/src/core/hle/kernel/hle_ipc.h index b7484c445..d63c730ac 100644 --- a/src/core/hle/kernel/hle_ipc.h +++ b/src/core/hle/kernel/hle_ipc.h @@ -72,20 +72,14 @@ public: * associated ServerSession alive for the duration of the connection. * @param server_session Owning pointer to the ServerSession associated with the connection. */ - void ClientConnected(KSession* session); + void ClientConnected(KServerSession* session); /** * Signals that a client has just disconnected from this HLE handler and releases the * associated ServerSession. * @param server_session ServerSession associated with the connection. */ - void ClientDisconnected(KSession* session); - -protected: - /// List of sessions that are connected to this handler. - /// A ServerSession whose server endpoint is an HLE implementation is kept alive by this list - /// for the duration of the connection. - std::vector sessions; + void ClientDisconnected(KServerSession* session); }; /** diff --git a/src/core/hle/kernel/init/init_slab_setup.cpp b/src/core/hle/kernel/init/init_slab_setup.cpp index a5ddd7344..f8c255732 100644 --- a/src/core/hle/kernel/init/init_slab_setup.cpp +++ b/src/core/hle/kernel/init/init_slab_setup.cpp @@ -12,6 +12,7 @@ #include "core/hle/kernel/k_event.h" #include "core/hle/kernel/k_memory_layout.h" #include "core/hle/kernel/k_memory_manager.h" +#include "core/hle/kernel/k_port.h" #include "core/hle/kernel/k_resource_limit.h" #include "core/hle/kernel/k_session.h" #include "core/hle/kernel/k_shared_memory.h" @@ -30,8 +31,9 @@ namespace Kernel::Init { HANDLER(Process, (SLAB_COUNT(Process)), ##__VA_ARGS__) \ HANDLER(KThread, (SLAB_COUNT(KThread)), ##__VA_ARGS__) \ HANDLER(KEvent, (SLAB_COUNT(KEvent)), ##__VA_ARGS__) \ - HANDLER(KTransferMemory, (SLAB_COUNT(KTransferMemory)), ##__VA_ARGS__) \ + HANDLER(KPort, (SLAB_COUNT(KPort)), ##__VA_ARGS__) \ HANDLER(KSharedMemory, (SLAB_COUNT(KSharedMemory)), ##__VA_ARGS__) \ + HANDLER(KTransferMemory, (SLAB_COUNT(KTransferMemory)), ##__VA_ARGS__) \ HANDLER(KSession, (SLAB_COUNT(KSession)), ##__VA_ARGS__) \ HANDLER(KResourceLimit, (SLAB_COUNT(KResourceLimit)), ##__VA_ARGS__) diff --git a/src/core/hle/kernel/k_client_port.cpp b/src/core/hle/kernel/k_client_port.cpp index 00e1bbc59..b6f1d713f 100644 --- a/src/core/hle/kernel/k_client_port.cpp +++ b/src/core/hle/kernel/k_client_port.cpp @@ -1,12 +1,14 @@ -// Copyright 2016 Citra Emulator Project +// Copyright 2021 Citra Emulator Project // Licensed under GPLv2 or any later version // Refer to the license.txt file included. +#include "common/scope_exit.h" #include "core/hle/kernel/hle_ipc.h" #include "core/hle/kernel/k_client_port.h" -#include "core/hle/kernel/k_server_port.h" +#include "core/hle/kernel/k_port.h" +#include "core/hle/kernel/k_scheduler.h" +#include "core/hle/kernel/k_scoped_resource_reservation.h" #include "core/hle/kernel/k_session.h" -#include "core/hle/kernel/object.h" #include "core/hle/kernel/svc_results.h" namespace Kernel { @@ -14,45 +16,110 @@ namespace Kernel { KClientPort::KClientPort(KernelCore& kernel) : KSynchronizationObject{kernel} {} KClientPort::~KClientPort() = default; -void KClientPort::Initialize(s32 max_sessions_, std::string&& name_) { +void KClientPort::Initialize(KPort* parent_, s32 max_sessions_, std::string&& name_) { + // Set member variables. + num_sessions = 0; + peak_sessions = 0; + parent = parent_; max_sessions = max_sessions_; name = std::move(name_); } -KServerPort* KClientPort::GetServerPort() const { - return server_port; -} +void KClientPort::OnSessionFinalized() { + KScopedSchedulerLock sl{kernel}; -ResultVal KClientPort::Connect() { - if (num_sessions >= max_sessions) { - return ResultOutOfSessions; + const auto prev = num_sessions--; + if (prev == max_sessions) { + this->NotifyAvailable(); } - num_sessions++; +} - auto* session = Kernel::KSession::Create(kernel); - session->Initialize(name + ":ClientPort"); +void KClientPort::OnServerClosed() {} - if (server_port->HasHLEHandler()) { - server_port->GetHLEHandler()->ClientConnected(session); - } else { - server_port->AppendPendingSession(std::addressof(session->GetServerSession())); - } +bool KClientPort::IsLight() const { + return this->GetParent()->IsLight(); +} - return MakeResult(std::addressof(session->GetClientSession())); +bool KClientPort::IsServerClosed() const { + return this->GetParent()->IsServerClosed(); } -void KClientPort::ConnectionClosed() { - if (num_sessions == 0) { - return; - } +void KClientPort::Destroy() { + // Note with our parent that we're closed. + parent->OnClientClosed(); - --num_sessions; + // Close our reference to our parent. + parent->Close(); } -void KClientPort::Destroy() {} - bool KClientPort::IsSignaled() const { return num_sessions < max_sessions; } +ResultCode KClientPort::CreateSession(KClientSession** out) { + // Reserve a new session from the resource limit. + KScopedResourceReservation session_reservation(kernel.CurrentProcess()->GetResourceLimit(), + LimitableResource::Sessions); + R_UNLESS(session_reservation.Succeeded(), ResultLimitReached); + + // Update the session counts. + { + // Atomically increment the number of sessions. + s32 new_sessions; + { + const auto max = max_sessions; + auto cur_sessions = num_sessions.load(std::memory_order_acquire); + do { + R_UNLESS(cur_sessions < max, ResultOutOfSessions); + new_sessions = cur_sessions + 1; + } while (!num_sessions.compare_exchange_weak(cur_sessions, new_sessions, + std::memory_order_relaxed)); + } + + // Atomically update the peak session tracking. + { + auto peak = peak_sessions.load(std::memory_order_acquire); + do { + if (peak >= new_sessions) { + break; + } + } while (!peak_sessions.compare_exchange_weak(peak, new_sessions, + std::memory_order_relaxed)); + } + } + + // Create a new session. + KSession* session = KSession::Create(kernel); + if (session == nullptr) { + /* Decrement the session count. */ + const auto prev = num_sessions--; + if (prev == max_sessions) { + this->NotifyAvailable(); + } + + return ResultOutOfResource; + } + + // Initialize the session. + session->Initialize(this, parent->GetName()); + + // Commit the session reservation. + session_reservation.Commit(); + + // Register the session. + KSession::Register(kernel, session); + auto session_guard = SCOPE_GUARD({ + session->GetClientSession().Close(); + session->GetServerSession().Close(); + }); + + // Enqueue the session with our parent. + R_TRY(parent->EnqueueSession(std::addressof(session->GetServerSession()))); + + // We succeeded, so set the output. + session_guard.Cancel(); + *out = std::addressof(session->GetClientSession()); + return RESULT_SUCCESS; +} + } // namespace Kernel diff --git a/src/core/hle/kernel/k_client_port.h b/src/core/hle/kernel/k_client_port.h index 60dea4763..43a17f4a4 100644 --- a/src/core/hle/kernel/k_client_port.h +++ b/src/core/hle/kernel/k_client_port.h @@ -15,7 +15,7 @@ namespace Kernel { class KClientSession; class KernelCore; -class KServerPort; +class KPort; class KClientPort final : public KSynchronizationObject { KERNEL_AUTOOBJECT_TRAITS(KClientPort, KSynchronizationObject); @@ -24,30 +24,33 @@ public: explicit KClientPort(KernelCore& kernel); virtual ~KClientPort() override; - friend class KServerPort; + void Initialize(KPort* parent_, s32 max_sessions_, std::string&& name_); + void OnSessionFinalized(); + void OnServerClosed(); - void Initialize(s32 max_sessions_, std::string&& name_); - - KServerPort* GetServerPort() const; + constexpr const KPort* GetParent() const { + return parent; + } - /** - * Creates a new Session pair, adds the created ServerSession to the associated ServerPort's - * list of pending sessions, and signals the ServerPort, causing any threads - * waiting on it to awake. - * @returns ClientSession The client endpoint of the created Session pair, or error code. - */ - ResultVal Connect(); + s32 GetNumSessions() const { + return num_sessions; + } + s32 GetPeakSessions() const { + return peak_sessions; + } + s32 GetMaxSessions() const { + return max_sessions; + } - /** - * Signifies that a previously active connection has been closed, - * decreasing the total number of active connections to this port. - */ - void ConnectionClosed(); + bool IsLight() const; + bool IsServerClosed() const; // Overridden virtual functions. virtual void Destroy() override; virtual bool IsSignaled() const override; + ResultCode CreateSession(KClientSession** out); + // DEPRECATED std::string GetTypeName() const override { @@ -63,10 +66,11 @@ public: } private: - KServerPort* server_port{}; ///< ServerPort associated with this client port. - s32 max_sessions{}; ///< Maximum number of simultaneous sessions the port can have - std::atomic num_sessions{}; ///< Number of currently open sessions to this port - std::string name; ///< Name of client port (optional) + std::atomic num_sessions{}; + std::atomic peak_sessions{}; + s32 max_sessions{}; + KPort* parent{}; + std::string name; }; } // namespace Kernel diff --git a/src/core/hle/kernel/k_event.h b/src/core/hle/kernel/k_event.h index 2c48a0499..45634e401 100644 --- a/src/core/hle/kernel/k_event.h +++ b/src/core/hle/kernel/k_event.h @@ -20,7 +20,7 @@ class KEvent final : public KAutoObjectWithSlabHeapAndContainerClientConnected(session); + } else { + server.EnqueueSession(session); + } + + return RESULT_SUCCESS; +} + +} // namespace Kernel diff --git a/src/core/hle/kernel/k_port.h b/src/core/hle/kernel/k_port.h new file mode 100644 index 000000000..68c8ed8df --- /dev/null +++ b/src/core/hle/kernel/k_port.h @@ -0,0 +1,87 @@ +// Copyright 2021 yuzu Emulator Project +// Licensed under GPLv2 or any later version +// Refer to the license.txt file included. + +#pragma once + +#include +#include + +#include "common/common_types.h" +#include "core/hle/kernel/k_client_port.h" +#include "core/hle/kernel/k_server_port.h" +#include "core/hle/kernel/slab_helpers.h" +#include "core/hle/result.h" + +namespace Kernel { + +class KServerSession; + +class KPort final : public KAutoObjectWithSlabHeapAndContainer { + KERNEL_AUTOOBJECT_TRAITS(KPort, KAutoObject); + +public: + explicit KPort(KernelCore& kernel); + virtual ~KPort(); + + static void PostDestroy([[maybe_unused]] uintptr_t arg) {} + + void Initialize(s32 max_sessions_, bool is_light_, const std::string& name_); + void OnClientClosed(); + void OnServerClosed(); + + bool IsLight() const { + return is_light; + } + + bool IsServerClosed() const; + + ResultCode EnqueueSession(KServerSession* session); + + KClientPort& GetClientPort() { + return client; + } + KServerPort& GetServerPort() { + return server; + } + const KClientPort& GetClientPort() const { + return client; + } + const KServerPort& GetServerPort() const { + return server; + } + + // DEPRECATED + + friend class ServerPort; + std::string GetTypeName() const override { + return "Port"; + } + std::string GetName() const override { + return name; + } + + HandleType GetHandleType() const override { + return {}; + } + + void Finalize() override {} + +private: + enum class State : u8 { + Invalid = 0, + Normal = 1, + ClientClosed = 2, + ServerClosed = 3, + }; + +private: + KServerPort server; + KClientPort client; + State state{State::Invalid}; + bool is_light{}; + + std::string name; ///< Name of client port (optional) +}; + +} // namespace Kernel diff --git a/src/core/hle/kernel/k_server_port.cpp b/src/core/hle/kernel/k_server_port.cpp index 2c51d66db..fcc04abaa 100644 --- a/src/core/hle/kernel/k_server_port.cpp +++ b/src/core/hle/kernel/k_server_port.cpp @@ -1,10 +1,12 @@ -// Copyright 2016 Citra Emulator Project +// Copyright 2021 yuzu emulator team // Licensed under GPLv2 or any later version // Refer to the license.txt file included. #include #include "common/assert.h" #include "core/hle/kernel/k_client_port.h" +#include "core/hle/kernel/k_port.h" +#include "core/hle/kernel/k_scheduler.h" #include "core/hle/kernel/k_server_port.h" #include "core/hle/kernel/k_server_session.h" #include "core/hle/kernel/k_thread.h" @@ -16,50 +18,88 @@ namespace Kernel { KServerPort::KServerPort(KernelCore& kernel) : KSynchronizationObject{kernel} {} KServerPort::~KServerPort() = default; -void KServerPort::Initialize(std::string&& name_) { +void KServerPort::Initialize(KPort* parent_, std::string&& name_) { // Set member variables. + parent = parent_; name = std::move(name_); } -ResultVal KServerPort::Accept() { - if (pending_sessions.empty()) { - return ResultNotFound; - } - - auto* session = pending_sessions.back(); - pending_sessions.pop_back(); - return MakeResult(session); +bool KServerPort::IsLight() const { + return this->GetParent()->IsLight(); } -void KServerPort::AppendPendingSession(KServerSession* pending_session) { - pending_sessions.push_back(std::move(pending_session)); - if (pending_sessions.size() == 1) { - NotifyAvailable(); +void KServerPort::CleanupSessions() { + // Ensure our preconditions are met. + if (this->IsLight()) { + UNIMPLEMENTED(); + } + + // Cleanup the session list. + while (true) { + // Get the last session in the list + KServerSession* session = nullptr; + { + KScopedSchedulerLock sl{kernel}; + if (!session_list.empty()) { + session = std::addressof(session_list.front()); + session_list.pop_front(); + } + } + + // Close the session. + if (session != nullptr) { + session->Close(); + } else { + break; + } } } -void KServerPort::Destroy() {} +void KServerPort::Destroy() { + // Note with our parent that we're closed. + parent->OnServerClosed(); + + // Perform necessary cleanup of our session lists. + this->CleanupSessions(); + + // Close our reference to our parent. + parent->Close(); +} bool KServerPort::IsSignaled() const { - return !pending_sessions.empty(); + if (this->IsLight()) { + UNIMPLEMENTED(); + return false; + } else { + return !session_list.empty(); + } } -KServerPort::PortPair KServerPort::CreatePortPair(KernelCore& kernel, u32 max_sessions, - std::string name) { - KServerPort* server_port = new KServerPort(kernel); - KClientPort* client_port = new KClientPort(kernel); +void KServerPort::EnqueueSession(KServerSession* session) { + ASSERT(!this->IsLight()); + + KScopedSchedulerLock sl{kernel}; - KAutoObject::Create(server_port); - KAutoObject::Create(client_port); + // Add the session to our queue. + session_list.push_back(*session); + if (session_list.size() == 1) { + this->NotifyAvailable(); + } +} - server_port->Initialize(name + "_Server"); - client_port->Initialize(max_sessions, name + "_Client"); +KServerSession* KServerPort::AcceptSession() { + ASSERT(!this->IsLight()); - client_port->server_port = server_port; + KScopedSchedulerLock sl{kernel}; - server_port->name = name + "_Server"; + // Return the first session in the list. + if (session_list.empty()) { + return nullptr; + } - return std::make_pair(server_port, client_port); + KServerSession* session = std::addressof(session_list.front()); + session_list.pop_front(); + return session; } } // namespace Kernel diff --git a/src/core/hle/kernel/k_server_port.h b/src/core/hle/kernel/k_server_port.h index 13fa54e5e..9f45ca3f4 100644 --- a/src/core/hle/kernel/k_server_port.h +++ b/src/core/hle/kernel/k_server_port.h @@ -1,4 +1,4 @@ -// Copyright 2016 Citra Emulator Project +// Copyright 2021 yuzu emulator team // Licensed under GPLv2 or any later version // Refer to the license.txt file included. @@ -8,46 +8,33 @@ #include #include #include + +#include + #include "common/common_types.h" +#include "core/hle/kernel/k_server_session.h" #include "core/hle/kernel/k_synchronization_object.h" -#include "core/hle/kernel/object.h" #include "core/hle/result.h" namespace Kernel { -class KClientPort; class KernelCore; -class KServerSession; +class KPort; class SessionRequestHandler; class KServerPort final : public KSynchronizationObject { KERNEL_AUTOOBJECT_TRAITS(KServerPort, KSynchronizationObject); +private: + using SessionList = boost::intrusive::list; + public: explicit KServerPort(KernelCore& kernel); virtual ~KServerPort() override; using HLEHandler = std::shared_ptr; - using PortPair = std::pair; - - void Initialize(std::string&& name_); - - /** - * Creates a pair of ServerPort and an associated ClientPort. - * - * @param kernel The kernel instance to create the port pair under. - * @param max_sessions Maximum number of sessions to the port - * @param name Optional name of the ports - * @return The created port tuple - */ - static PortPair CreatePortPair(KernelCore& kernel, u32 max_sessions, - std::string name = "UnknownPort"); - /** - * Accepts a pending incoming connection on this port. If there are no pending sessions, will - * return ERR_NO_PENDING_SESSIONS. - */ - ResultVal Accept(); + void Initialize(KPort* parent_, std::string&& name_); /// Whether or not this server port has an HLE handler available. bool HasHLEHandler() const { @@ -67,9 +54,15 @@ public: hle_handler = std::move(hle_handler_); } - /// Appends a ServerSession to the collection of ServerSessions - /// waiting to be accepted by this port. - void AppendPendingSession(KServerSession* pending_session); + void EnqueueSession(KServerSession* pending_session); + + KServerSession* AcceptSession(); + + constexpr const KPort* GetParent() const { + return parent; + } + + bool IsLight() const; // Overridden virtual functions. virtual void Destroy() override; @@ -90,14 +83,12 @@ public: } private: - /// ServerSessions waiting to be accepted by the port - std::vector pending_sessions; + void CleanupSessions(); - /// This session's HLE request handler template (optional) - /// ServerSessions created from this port inherit a reference to this handler. +private: + SessionList session_list; HLEHandler hle_handler; - - /// Name of the port (optional) + KPort* parent{}; std::string name; }; diff --git a/src/core/hle/kernel/k_server_session.cpp b/src/core/hle/kernel/k_server_session.cpp index 46ba7081b..863f9aa5f 100644 --- a/src/core/hle/kernel/k_server_session.cpp +++ b/src/core/hle/kernel/k_server_session.cpp @@ -50,7 +50,7 @@ void KServerSession::OnClientClosed() { if (handler) { // Note that after this returns, this server session's hle_handler is // invalidated (set to null). - handler->ClientDisconnected(parent); + handler->ClientDisconnected(this); } } diff --git a/src/core/hle/kernel/k_server_session.h b/src/core/hle/kernel/k_server_session.h index ef81c4e30..d748754d0 100644 --- a/src/core/hle/kernel/k_server_session.h +++ b/src/core/hle/kernel/k_server_session.h @@ -9,6 +9,8 @@ #include #include +#include + #include "common/threadsafe_queue.h" #include "core/hle/kernel/k_synchronization_object.h" #include "core/hle/kernel/service_thread.h" @@ -31,7 +33,8 @@ class KSession; class SessionRequestHandler; class KThread; -class KServerSession final : public KSynchronizationObject { +class KServerSession final : public KSynchronizationObject, + public boost::intrusive::list_base_hook<> { KERNEL_AUTOOBJECT_TRAITS(KServerSession, KSynchronizationObject); friend class ServiceThread; diff --git a/src/core/hle/kernel/k_session.cpp b/src/core/hle/kernel/k_session.cpp index ca1cf18cd..6f4276189 100644 --- a/src/core/hle/kernel/k_session.cpp +++ b/src/core/hle/kernel/k_session.cpp @@ -1,8 +1,9 @@ -// Copyright 2019 yuzu emulator team +// Copyright 2021 yuzu emulator team // Licensed under GPLv2 or any later version // Refer to the license.txt file included. #include "common/assert.h" +#include "core/hle/kernel/k_client_port.h" #include "core/hle/kernel/k_client_session.h" #include "core/hle/kernel/k_scoped_resource_reservation.h" #include "core/hle/kernel/k_server_session.h" @@ -14,7 +15,7 @@ KSession::KSession(KernelCore& kernel) : KAutoObjectWithSlabHeapAndContainer{kernel}, server{kernel}, client{kernel} {} KSession::~KSession() = default; -void KSession::Initialize(std::string&& name_) { +void KSession::Initialize(KClientPort* port_, std::string&& name_) { // Increment reference count. // Because reference count is one on creation, this will result // in a reference count of two. Thus, when both server and client are closed @@ -37,11 +38,22 @@ void KSession::Initialize(std::string&& name_) { process = kernel.CurrentProcess(); process->Open(); + // Set our port. + port = port_; + if (port != nullptr) { + port->Open(); + } + // Mark initialized. initialized = true; } -void KSession::Finalize() {} +void KSession::Finalize() { + if (port != nullptr) { + port->OnSessionFinalized(); + port->Close(); + } +} void KSession::OnServerClosed() { if (GetState() == State::Normal) { diff --git a/src/core/hle/kernel/k_session.h b/src/core/hle/kernel/k_session.h index 6a6fcb588..1597cc608 100644 --- a/src/core/hle/kernel/k_session.h +++ b/src/core/hle/kernel/k_session.h @@ -28,7 +28,7 @@ public: explicit KSession(KernelCore& kernel); virtual ~KSession() override; - void Initialize(std::string&& name_); + void Initialize(KClientPort* port_, std::string&& name_); virtual void Finalize() override; diff --git a/src/core/hle/kernel/kernel.h b/src/core/hle/kernel/kernel.h index 19b3530b4..723be6b51 100644 --- a/src/core/hle/kernel/kernel.h +++ b/src/core/hle/kernel/kernel.h @@ -37,6 +37,8 @@ class KClientSession; class KEvent; class KLinkedListNode; class KMemoryManager; +class KPort; +class Process; class KResourceLimit; class KScheduler; class KSession; @@ -45,7 +47,6 @@ class KThread; class KTransferMemory; class KWritableEvent; class PhysicalCore; -class Process; class ServiceThread; class Synchronization; class TimeManager; @@ -272,6 +273,8 @@ public: return slab_heap_container->event; } else if constexpr (std::is_same_v) { return slab_heap_container->linked_list_node; + } else if constexpr (std::is_same_v) { + return slab_heap_container->port; } else if constexpr (std::is_same_v) { return slab_heap_container->process; } else if constexpr (std::is_same_v) { @@ -323,6 +326,7 @@ private: KSlabHeap client_session; KSlabHeap event; KSlabHeap linked_list_node; + KSlabHeap port; KSlabHeap process; KSlabHeap resource_limit; KSlabHeap session; diff --git a/src/core/hle/kernel/svc.cpp b/src/core/hle/kernel/svc.cpp index 8d8d3dd5a..ef8fa98a9 100644 --- a/src/core/hle/kernel/svc.cpp +++ b/src/core/hle/kernel/svc.cpp @@ -293,9 +293,7 @@ static ResultCode UnmapMemory32(Core::System& system, u32 dst_addr, u32 src_addr /// Connect to an OS service given the port name, returns the handle to the port to out static ResultCode ConnectToNamedPort(Core::System& system, Handle* out_handle, VAddr port_name_address) { - std::lock_guard lock{HLE::g_hle_lock}; auto& memory = system.Memory(); - if (!memory.IsValidVirtualAddress(port_name_address)) { LOG_ERROR(Kernel_SVC, "Port Name Address is not a valid virtual address, port_name_address=0x{:016X}", @@ -314,21 +312,27 @@ static ResultCode ConnectToNamedPort(Core::System& system, Handle* out_handle, LOG_TRACE(Kernel_SVC, "called port_name={}", port_name); + // Get the current handle table. auto& kernel = system.Kernel(); + auto& handle_table = kernel.CurrentProcess()->GetHandleTable(); + + // Find the client port. const auto it = kernel.FindNamedPort(port_name); if (!kernel.IsValidNamedPort(it)) { LOG_WARNING(Kernel_SVC, "tried to connect to unknown port: {}", port_name); return ResultNotFound; } + auto port = it->second; - auto client_port = it->second; + // Create a session. + KClientSession* session{}; + R_TRY(port->CreateSession(std::addressof(session))); - KClientSession* client_session{}; - CASCADE_RESULT(client_session, client_port->Connect()); + // Register the session in the table, close the extra reference. + handle_table.Add(out_handle, session); + session->Close(); - // Return the client session - auto& handle_table = kernel.CurrentProcess()->GetHandleTable(); - handle_table.Add(out_handle, client_session); + // We succeeded. return RESULT_SUCCESS; } @@ -340,13 +344,13 @@ static ResultCode ConnectToNamedPort32(Core::System& system, Handle* out_handle, /// Makes a blocking IPC call to an OS service. static ResultCode SendSyncRequest(Core::System& system, Handle handle) { - LOG_TRACE(Kernel_SVC, "called handle=0x{:08X}({})", handle, session->GetName()); auto& kernel = system.Kernel(); KScopedAutoObject session = kernel.CurrentProcess()->GetHandleTable().GetObject(handle); R_UNLESS(session.IsNotNull(), ResultInvalidHandle); + LOG_TRACE(Kernel_SVC, "called handle=0x{:08X}({})", handle, session->GetName()); auto thread = kernel.CurrentScheduler()->GetCurrentThread(); { diff --git a/src/core/hle/kernel/svc_results.h b/src/core/hle/kernel/svc_results.h index cd32acd99..53a940723 100644 --- a/src/core/hle/kernel/svc_results.h +++ b/src/core/hle/kernel/svc_results.h @@ -36,6 +36,7 @@ constexpr ResultCode ResultBusy{ErrorModule::Kernel, 122}; constexpr ResultCode ResultSessionClosed{ErrorModule::Kernel, 123}; constexpr ResultCode ResultInvalidState{ErrorModule::Kernel, 125}; constexpr ResultCode ResultReservedUsed{ErrorModule::Kernel, 126}; +constexpr ResultCode ResultPortClosed{ErrorModule::Kernel, 131}; constexpr ResultCode ResultLimitReached{ErrorModule::Kernel, 132}; constexpr ResultCode ResultInvalidId{ErrorModule::Kernel, 519}; -- cgit v1.2.3