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authorbunnei <bunneidev@gmail.com>2021-05-24 01:28:40 +0200
committerGitHub <noreply@github.com>2021-05-24 01:28:40 +0200
commit3ead4a34940c952f980b1214968c09f59e04947f (patch)
treeaa559314c5332dc8dfc1e2303266592abc52ed48 /src/core/hle/kernel
parentMerge pull request #6248 from A-w-x/intelmesa (diff)
parenthle: kernel: service_thread: Take reference to KServerSession on service request. (diff)
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Diffstat (limited to 'src/core/hle/kernel')
-rw-r--r--src/core/hle/kernel/hle_ipc.cpp36
-rw-r--r--src/core/hle/kernel/hle_ipc.h123
-rw-r--r--src/core/hle/kernel/init/init_slab_setup.cpp10
-rw-r--r--src/core/hle/kernel/k_client_port.cpp8
-rw-r--r--src/core/hle/kernel/k_client_port.h3
-rw-r--r--src/core/hle/kernel/k_port.cpp7
-rw-r--r--src/core/hle/kernel/k_server_port.h16
-rw-r--r--src/core/hle/kernel/k_server_session.cpp35
-rw-r--r--src/core/hle/kernel/k_server_session.h36
-rw-r--r--src/core/hle/kernel/k_session.cpp2
-rw-r--r--src/core/hle/kernel/k_session.h4
-rw-r--r--src/core/hle/kernel/k_slab_heap.h154
-rw-r--r--src/core/hle/kernel/service_thread.cpp14
-rw-r--r--src/core/hle/kernel/slab_helpers.h4
14 files changed, 178 insertions, 274 deletions
diff --git a/src/core/hle/kernel/hle_ipc.cpp b/src/core/hle/kernel/hle_ipc.cpp
index 24700f7a5..9d069a78f 100644
--- a/src/core/hle/kernel/hle_ipc.cpp
+++ b/src/core/hle/kernel/hle_ipc.cpp
@@ -35,11 +35,11 @@ SessionRequestHandler::SessionRequestHandler() = default;
SessionRequestHandler::~SessionRequestHandler() = default;
void SessionRequestHandler::ClientConnected(KServerSession* session) {
- session->SetHleHandler(shared_from_this());
+ session->SetSessionHandler(shared_from_this());
}
void SessionRequestHandler::ClientDisconnected(KServerSession* session) {
- session->SetHleHandler(nullptr);
+ session->SetSessionHandler(nullptr);
}
HLERequestContext::HLERequestContext(KernelCore& kernel_, Core::Memory::Memory& memory_,
@@ -69,14 +69,10 @@ void HLERequestContext::ParseCommandBuffer(const KHandleTable& handle_table, u32
if (incoming) {
// Populate the object lists with the data in the IPC request.
for (u32 handle = 0; handle < handle_descriptor_header->num_handles_to_copy; ++handle) {
- const u32 copy_handle{rp.Pop<Handle>()};
- copy_handles.push_back(copy_handle);
- copy_objects.push_back(handle_table.GetObject(copy_handle).GetPointerUnsafe());
+ incoming_copy_handles.push_back(rp.Pop<Handle>());
}
for (u32 handle = 0; handle < handle_descriptor_header->num_handles_to_move; ++handle) {
- const u32 move_handle{rp.Pop<Handle>()};
- move_handles.push_back(move_handle);
- move_objects.push_back(handle_table.GetObject(move_handle).GetPointerUnsafe());
+ incoming_move_handles.push_back(rp.Pop<Handle>());
}
} else {
// For responses we just ignore the handles, they're empty and will be populated when
@@ -186,26 +182,14 @@ ResultCode HLERequestContext::WriteToOutgoingCommandBuffer(KThread& requesting_t
auto& owner_process = *requesting_thread.GetOwnerProcess();
auto& handle_table = owner_process.GetHandleTable();
- // The data_size already includes the payload header, the padding and the domain header.
- std::size_t size{};
-
- if (IsTipc()) {
- size = cmd_buf.size();
- } else {
- size = data_payload_offset + data_size - sizeof(IPC::DataPayloadHeader) / sizeof(u32) - 4;
- if (Session()->IsDomain()) {
- size -= sizeof(IPC::DomainMessageHeader) / sizeof(u32);
- }
- }
-
- for (auto& object : copy_objects) {
+ for (auto& object : outgoing_copy_objects) {
Handle handle{};
if (object) {
R_TRY(handle_table.Add(&handle, object));
}
cmd_buf[current_offset++] = handle;
}
- for (auto& object : move_objects) {
+ for (auto& object : outgoing_move_objects) {
Handle handle{};
if (object) {
R_TRY(handle_table.Add(&handle, object));
@@ -220,9 +204,9 @@ ResultCode HLERequestContext::WriteToOutgoingCommandBuffer(KThread& requesting_t
// TODO(Subv): This completely ignores C buffers.
if (Session()->IsDomain()) {
- current_offset = domain_offset - static_cast<u32>(domain_objects.size());
- for (const auto& object : domain_objects) {
- server_session->AppendDomainRequestHandler(object);
+ current_offset = domain_offset - static_cast<u32>(outgoing_domain_objects.size());
+ for (const auto& object : outgoing_domain_objects) {
+ server_session->AppendDomainHandler(object);
cmd_buf[current_offset++] =
static_cast<u32_le>(server_session->NumDomainRequestHandlers());
}
@@ -230,7 +214,7 @@ ResultCode HLERequestContext::WriteToOutgoingCommandBuffer(KThread& requesting_t
// Copy the translated command buffer back into the thread's command buffer area.
memory.WriteBlock(owner_process, requesting_thread.GetTLSAddress(), cmd_buf.data(),
- size * sizeof(u32));
+ write_size * sizeof(u32));
return RESULT_SUCCESS;
}
diff --git a/src/core/hle/kernel/hle_ipc.h b/src/core/hle/kernel/hle_ipc.h
index e1b128281..b47e363cc 100644
--- a/src/core/hle/kernel/hle_ipc.h
+++ b/src/core/hle/kernel/hle_ipc.h
@@ -11,7 +11,8 @@
#include <string>
#include <type_traits>
#include <vector>
-#include <boost/container/small_vector.hpp>
+
+#include "common/assert.h"
#include "common/common_types.h"
#include "common/concepts.h"
#include "common/swap.h"
@@ -84,6 +85,69 @@ public:
void ClientDisconnected(KServerSession* session);
};
+using SessionRequestHandlerPtr = std::shared_ptr<SessionRequestHandler>;
+
+/**
+ * Manages the underlying HLE requests for a session, and whether (or not) the session should be
+ * treated as a domain. This is managed separately from server sessions, as this state is shared
+ * when objects are cloned.
+ */
+class SessionRequestManager final {
+public:
+ SessionRequestManager() = default;
+
+ bool IsDomain() const {
+ return is_domain;
+ }
+
+ void ConvertToDomain() {
+ domain_handlers = {session_handler};
+ is_domain = true;
+ }
+
+ std::size_t DomainHandlerCount() const {
+ return domain_handlers.size();
+ }
+
+ bool HasSessionHandler() const {
+ return session_handler != nullptr;
+ }
+
+ SessionRequestHandler& SessionHandler() {
+ return *session_handler;
+ }
+
+ const SessionRequestHandler& SessionHandler() const {
+ return *session_handler;
+ }
+
+ void CloseDomainHandler(std::size_t index) {
+ if (index < DomainHandlerCount()) {
+ domain_handlers[index] = nullptr;
+ } else {
+ UNREACHABLE_MSG("Unexpected handler index {}", index);
+ }
+ }
+
+ SessionRequestHandlerPtr DomainHandler(std::size_t index) const {
+ ASSERT_MSG(index < DomainHandlerCount(), "Unexpected handler index {}", index);
+ return domain_handlers.at(index);
+ }
+
+ void AppendDomainHandler(SessionRequestHandlerPtr&& handler) {
+ domain_handlers.emplace_back(std::move(handler));
+ }
+
+ void SetSessionHandler(SessionRequestHandlerPtr&& handler) {
+ session_handler = std::move(handler);
+ }
+
+private:
+ bool is_domain{};
+ SessionRequestHandlerPtr session_handler;
+ std::vector<SessionRequestHandlerPtr> domain_handlers;
+};
+
/**
* Class containing information about an in-flight IPC request being handled by an HLE service
* implementation. Services should avoid using old global APIs (e.g. Kernel::GetCommandBuffer()) and
@@ -224,53 +288,32 @@ public:
bool CanWriteBuffer(std::size_t buffer_index = 0) const;
Handle GetCopyHandle(std::size_t index) const {
- return copy_handles.at(index);
+ return incoming_copy_handles.at(index);
}
Handle GetMoveHandle(std::size_t index) const {
- return move_handles.at(index);
+ return incoming_move_handles.at(index);
}
void AddMoveObject(KAutoObject* object) {
- move_objects.emplace_back(object);
+ outgoing_move_objects.emplace_back(object);
}
void AddCopyObject(KAutoObject* object) {
- copy_objects.emplace_back(object);
+ outgoing_copy_objects.emplace_back(object);
}
- void AddDomainObject(std::shared_ptr<SessionRequestHandler> object) {
- domain_objects.emplace_back(std::move(object));
+ void AddDomainObject(SessionRequestHandlerPtr object) {
+ outgoing_domain_objects.emplace_back(std::move(object));
}
template <typename T>
- std::shared_ptr<T> GetDomainRequestHandler(std::size_t index) const {
- return std::static_pointer_cast<T>(domain_request_handlers.at(index));
- }
-
- void SetDomainRequestHandlers(
- const std::vector<std::shared_ptr<SessionRequestHandler>>& handlers) {
- domain_request_handlers = handlers;
- }
-
- /// Clears the list of objects so that no lingering objects are written accidentally to the
- /// response buffer.
- void ClearIncomingObjects() {
- move_objects.clear();
- copy_objects.clear();
- domain_objects.clear();
+ std::shared_ptr<T> GetDomainHandler(std::size_t index) const {
+ return std::static_pointer_cast<T>(manager->DomainHandler(index));
}
- std::size_t NumMoveObjects() const {
- return move_objects.size();
- }
-
- std::size_t NumCopyObjects() const {
- return copy_objects.size();
- }
-
- std::size_t NumDomainObjects() const {
- return domain_objects.size();
+ void SetSessionRequestManager(std::shared_ptr<SessionRequestManager> manager_) {
+ manager = std::move(manager_);
}
std::string Description() const;
@@ -292,12 +335,12 @@ private:
Kernel::KServerSession* server_session{};
KThread* thread;
- // TODO(yuriks): Check common usage of this and optimize size accordingly
- boost::container::small_vector<Handle, 8> move_handles;
- boost::container::small_vector<Handle, 8> copy_handles;
- boost::container::small_vector<KAutoObject*, 8> move_objects;
- boost::container::small_vector<KAutoObject*, 8> copy_objects;
- boost::container::small_vector<std::shared_ptr<SessionRequestHandler>, 8> domain_objects;
+ std::vector<Handle> incoming_move_handles;
+ std::vector<Handle> incoming_copy_handles;
+
+ std::vector<KAutoObject*> outgoing_move_objects;
+ std::vector<KAutoObject*> outgoing_copy_objects;
+ std::vector<SessionRequestHandlerPtr> outgoing_domain_objects;
std::optional<IPC::CommandHeader> command_header;
std::optional<IPC::HandleDescriptorHeader> handle_descriptor_header;
@@ -311,12 +354,12 @@ private:
u32_le command{};
u64 pid{};
+ u32 write_size{};
u32 data_payload_offset{};
u32 handles_offset{};
u32 domain_offset{};
- u32 data_size{};
- std::vector<std::shared_ptr<SessionRequestHandler>> domain_request_handlers;
+ std::shared_ptr<SessionRequestManager> manager;
bool is_thread_waiting{};
KernelCore& kernel;
diff --git a/src/core/hle/kernel/init/init_slab_setup.cpp b/src/core/hle/kernel/init/init_slab_setup.cpp
index 69ae405e6..10edede17 100644
--- a/src/core/hle/kernel/init/init_slab_setup.cpp
+++ b/src/core/hle/kernel/init/init_slab_setup.cpp
@@ -70,14 +70,22 @@ constexpr size_t SlabCountExtraKThread = 160;
template <typename T>
VAddr InitializeSlabHeap(Core::System& system, KMemoryLayout& memory_layout, VAddr address,
size_t num_objects) {
+ // TODO(bunnei): This is just a place holder. We should initialize the appropriate KSlabHeap for
+ // kernel object type T with the backing kernel memory pointer once we emulate kernel memory.
+
const size_t size = Common::AlignUp(sizeof(T) * num_objects, alignof(void*));
VAddr start = Common::AlignUp(address, alignof(T));
+ // This is intentionally empty. Once KSlabHeap is fully implemented, we can replace this with
+ // the pointer to emulated memory to pass along. Until then, KSlabHeap will just allocate/free
+ // host memory.
+ void* backing_kernel_memory{};
+
if (size > 0) {
const KMemoryRegion* region = memory_layout.FindVirtual(start + size - 1);
ASSERT(region != nullptr);
ASSERT(region->IsDerivedFrom(KMemoryRegionType_KernelSlab));
- T::InitializeSlabHeap(system.Kernel(), system.Memory().GetKernelBuffer(start, size), size);
+ T::InitializeSlabHeap(system.Kernel(), backing_kernel_memory, size);
}
return start + size;
diff --git a/src/core/hle/kernel/k_client_port.cpp b/src/core/hle/kernel/k_client_port.cpp
index ad01cf67e..4a12dee10 100644
--- a/src/core/hle/kernel/k_client_port.cpp
+++ b/src/core/hle/kernel/k_client_port.cpp
@@ -58,9 +58,9 @@ bool KClientPort::IsSignaled() const {
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);
+ KScopedResourceReservation session_reservation(kernel.CurrentProcess()->GetResourceLimit(),
+ LimitableResource::Sessions);
+ R_UNLESS(session_reservation.Succeeded(), ResultLimitReached);
// Update the session counts.
{
@@ -104,7 +104,7 @@ ResultCode KClientPort::CreateSession(KClientSession** out) {
session->Initialize(this, parent->GetName());
// Commit the session reservation.
- // session_reservation.Commit();
+ session_reservation.Commit();
// Register the session.
KSession::Register(kernel, session);
diff --git a/src/core/hle/kernel/k_client_port.h b/src/core/hle/kernel/k_client_port.h
index d00ce3ddd..8501156e8 100644
--- a/src/core/hle/kernel/k_client_port.h
+++ b/src/core/hle/kernel/k_client_port.h
@@ -31,6 +31,9 @@ public:
const KPort* GetParent() const {
return parent;
}
+ KPort* GetParent() {
+ return parent;
+ }
s32 GetNumSessions() const {
return num_sessions;
diff --git a/src/core/hle/kernel/k_port.cpp b/src/core/hle/kernel/k_port.cpp
index feb2bb11f..223c0b205 100644
--- a/src/core/hle/kernel/k_port.cpp
+++ b/src/core/hle/kernel/k_port.cpp
@@ -56,11 +56,8 @@ ResultCode KPort::EnqueueSession(KServerSession* session) {
R_UNLESS(state == State::Normal, ResultPortClosed);
- if (server.HasHLEHandler()) {
- server.GetHLEHandler()->ClientConnected(session);
- } else {
- server.EnqueueSession(session);
- }
+ server.EnqueueSession(session);
+ server.GetSessionRequestHandler()->ClientConnected(server.AcceptSession());
return RESULT_SUCCESS;
}
diff --git a/src/core/hle/kernel/k_server_port.h b/src/core/hle/kernel/k_server_port.h
index e76792253..d1a757ec3 100644
--- a/src/core/hle/kernel/k_server_port.h
+++ b/src/core/hle/kernel/k_server_port.h
@@ -32,26 +32,24 @@ public:
explicit KServerPort(KernelCore& kernel_);
virtual ~KServerPort() override;
- using HLEHandler = std::shared_ptr<SessionRequestHandler>;
-
void Initialize(KPort* parent_, std::string&& name_);
/// Whether or not this server port has an HLE handler available.
- bool HasHLEHandler() const {
- return hle_handler != nullptr;
+ bool HasSessionRequestHandler() const {
+ return session_handler != nullptr;
}
/// Gets the HLE handler for this port.
- HLEHandler GetHLEHandler() const {
- return hle_handler;
+ SessionRequestHandlerPtr GetSessionRequestHandler() const {
+ return session_handler;
}
/**
* Sets the HLE handler template for the port. ServerSessions crated by connecting to this port
* will inherit a reference to this handler.
*/
- void SetHleHandler(HLEHandler hle_handler_) {
- hle_handler = std::move(hle_handler_);
+ void SetSessionHandler(SessionRequestHandlerPtr&& handler) {
+ session_handler = std::move(handler);
}
void EnqueueSession(KServerSession* pending_session);
@@ -73,7 +71,7 @@ private:
private:
SessionList session_list;
- HLEHandler hle_handler;
+ SessionRequestHandlerPtr session_handler;
KPort* parent{};
};
diff --git a/src/core/hle/kernel/k_server_session.cpp b/src/core/hle/kernel/k_server_session.cpp
index 8850d9af5..457fdfd60 100644
--- a/src/core/hle/kernel/k_server_session.cpp
+++ b/src/core/hle/kernel/k_server_session.cpp
@@ -23,7 +23,8 @@
namespace Kernel {
-KServerSession::KServerSession(KernelCore& kernel_) : KSynchronizationObject{kernel_} {}
+KServerSession::KServerSession(KernelCore& kernel_)
+ : KSynchronizationObject{kernel_}, manager{std::make_shared<SessionRequestManager>()} {}
KServerSession::~KServerSession() {
kernel.ReleaseServiceThread(service_thread);
@@ -43,14 +44,8 @@ void KServerSession::Destroy() {
}
void KServerSession::OnClientClosed() {
- // We keep a shared pointer to the hle handler to keep it alive throughout
- // the call to ClientDisconnected, as ClientDisconnected invalidates the
- // hle_handler member itself during the course of the function executing.
- std::shared_ptr<SessionRequestHandler> handler = hle_handler;
- if (handler) {
- // Note that after this returns, this server session's hle_handler is
- // invalidated (set to null).
- handler->ClientDisconnected(this);
+ if (manager->HasSessionHandler()) {
+ manager->SessionHandler().ClientDisconnected(this);
}
}
@@ -66,12 +61,12 @@ bool KServerSession::IsSignaled() const {
return false;
}
-void KServerSession::AppendDomainRequestHandler(std::shared_ptr<SessionRequestHandler> handler) {
- domain_request_handlers.push_back(std::move(handler));
+void KServerSession::AppendDomainHandler(SessionRequestHandlerPtr handler) {
+ manager->AppendDomainHandler(std::move(handler));
}
std::size_t KServerSession::NumDomainRequestHandlers() const {
- return domain_request_handlers.size();
+ return manager->DomainHandlerCount();
}
ResultCode KServerSession::HandleDomainSyncRequest(Kernel::HLERequestContext& context) {
@@ -80,14 +75,14 @@ ResultCode KServerSession::HandleDomainSyncRequest(Kernel::HLERequestContext& co
}
// Set domain handlers in HLE context, used for domain objects (IPC interfaces) as inputs
- context.SetDomainRequestHandlers(domain_request_handlers);
+ context.SetSessionRequestManager(manager);
// If there is a DomainMessageHeader, then this is CommandType "Request"
const auto& domain_message_header = context.GetDomainMessageHeader();
const u32 object_id{domain_message_header.object_id};
switch (domain_message_header.command) {
case IPC::DomainMessageHeader::CommandType::SendMessage:
- if (object_id > domain_request_handlers.size()) {
+ if (object_id > manager->DomainHandlerCount()) {
LOG_CRITICAL(IPC,
"object_id {} is too big! This probably means a recent service call "
"to {} needed to return a new interface!",
@@ -95,12 +90,12 @@ ResultCode KServerSession::HandleDomainSyncRequest(Kernel::HLERequestContext& co
UNREACHABLE();
return RESULT_SUCCESS; // Ignore error if asserts are off
}
- return domain_request_handlers[object_id - 1]->HandleSyncRequest(*this, context);
+ return manager->DomainHandler(object_id - 1)->HandleSyncRequest(*this, context);
case IPC::DomainMessageHeader::CommandType::CloseVirtualHandle: {
LOG_DEBUG(IPC, "CloseVirtualHandle, object_id=0x{:08X}", object_id);
- domain_request_handlers[object_id - 1] = nullptr;
+ manager->CloseDomainHandler(object_id - 1);
IPC::ResponseBuilder rb{context, 2};
rb.Push(RESULT_SUCCESS);
@@ -133,14 +128,14 @@ ResultCode KServerSession::CompleteSyncRequest(HLERequestContext& context) {
if (IsDomain() && context.HasDomainMessageHeader()) {
result = HandleDomainSyncRequest(context);
// If there is no domain header, the regular session handler is used
- } else if (hle_handler != nullptr) {
+ } else if (manager->HasSessionHandler()) {
// If this ServerSession has an associated HLE handler, forward the request to it.
- result = hle_handler->HandleSyncRequest(*this, context);
+ result = manager->SessionHandler().HandleSyncRequest(*this, context);
}
if (convert_to_domain) {
- ASSERT_MSG(IsSession(), "ServerSession is already a domain instance.");
- domain_request_handlers = {hle_handler};
+ ASSERT_MSG(!IsDomain(), "ServerSession is already a domain instance.");
+ manager->ConvertToDomain();
convert_to_domain = false;
}
diff --git a/src/core/hle/kernel/k_server_session.h b/src/core/hle/kernel/k_server_session.h
index 597d76d38..dd4de2904 100644
--- a/src/core/hle/kernel/k_server_session.h
+++ b/src/core/hle/kernel/k_server_session.h
@@ -12,6 +12,7 @@
#include <boost/intrusive/list.hpp>
#include "common/threadsafe_queue.h"
+#include "core/hle/kernel/hle_ipc.h"
#include "core/hle/kernel/k_synchronization_object.h"
#include "core/hle/kernel/service_thread.h"
#include "core/hle/result.h"
@@ -64,8 +65,8 @@ public:
* instead of the regular IPC machinery. (The regular IPC machinery is currently not
* implemented.)
*/
- void SetHleHandler(std::shared_ptr<SessionRequestHandler> hle_handler_) {
- hle_handler = std::move(hle_handler_);
+ void SetSessionHandler(SessionRequestHandlerPtr handler) {
+ manager->SetSessionHandler(std::move(handler));
}
/**
@@ -82,7 +83,7 @@ public:
/// Adds a new domain request handler to the collection of request handlers within
/// this ServerSession instance.
- void AppendDomainRequestHandler(std::shared_ptr<SessionRequestHandler> handler);
+ void AppendDomainHandler(SessionRequestHandlerPtr handler);
/// Retrieves the total number of domain request handlers that have been
/// appended to this ServerSession instance.
@@ -90,12 +91,7 @@ public:
/// Returns true if the session has been converted to a domain, otherwise False
bool IsDomain() const {
- return !IsSession();
- }
-
- /// Returns true if this session has not been converted to a domain, otherwise false.
- bool IsSession() const {
- return domain_request_handlers.empty();
+ return manager->IsDomain();
}
/// Converts the session to a domain at the end of the current command
@@ -103,6 +99,21 @@ public:
convert_to_domain = true;
}
+ /// Gets the session request manager, which forwards requests to the underlying service
+ std::shared_ptr<SessionRequestManager>& GetSessionRequestManager() {
+ return manager;
+ }
+
+ /// Gets the session request manager, which forwards requests to the underlying service
+ const std::shared_ptr<SessionRequestManager>& GetSessionRequestManager() const {
+ return manager;
+ }
+
+ /// Sets the session request manager, which forwards requests to the underlying service
+ void SetSessionRequestManager(std::shared_ptr<SessionRequestManager> manager_) {
+ manager = std::move(manager_);
+ }
+
private:
/// Queues a sync request from the emulated application.
ResultCode QueueSyncRequest(KThread* thread, Core::Memory::Memory& memory);
@@ -114,11 +125,8 @@ private:
/// object handle.
ResultCode HandleDomainSyncRequest(Kernel::HLERequestContext& context);
- /// This session's HLE request handler (applicable when not a domain)
- std::shared_ptr<SessionRequestHandler> hle_handler;
-
- /// This is the list of domain request handlers (after conversion to a domain)
- std::vector<std::shared_ptr<SessionRequestHandler>> domain_request_handlers;
+ /// This session's HLE request handlers
+ std::shared_ptr<SessionRequestManager> manager;
/// When set to True, converts the session to a domain at the end of the command
bool convert_to_domain{};
diff --git a/src/core/hle/kernel/k_session.cpp b/src/core/hle/kernel/k_session.cpp
index b7ce27a0b..025b8b555 100644
--- a/src/core/hle/kernel/k_session.cpp
+++ b/src/core/hle/kernel/k_session.cpp
@@ -78,7 +78,7 @@ void KSession::OnClientClosed() {
void KSession::PostDestroy(uintptr_t arg) {
// Release the session count resource the owner process holds.
KProcess* owner = reinterpret_cast<KProcess*>(arg);
- // owner->GetResourceLimit()->Release(LimitableResource::Sessions, 1);
+ owner->GetResourceLimit()->Release(LimitableResource::Sessions, 1);
owner->Close();
}
diff --git a/src/core/hle/kernel/k_session.h b/src/core/hle/kernel/k_session.h
index 16901e19c..a981fd1f6 100644
--- a/src/core/hle/kernel/k_session.h
+++ b/src/core/hle/kernel/k_session.h
@@ -66,6 +66,10 @@ public:
return port;
}
+ KClientPort* GetParent() {
+ return port;
+ }
+
private:
enum class State : u8 {
Invalid = 0,
diff --git a/src/core/hle/kernel/k_slab_heap.h b/src/core/hle/kernel/k_slab_heap.h
index 5ce9a1d7c..81d472a3e 100644
--- a/src/core/hle/kernel/k_slab_heap.h
+++ b/src/core/hle/kernel/k_slab_heap.h
@@ -4,165 +4,33 @@
#pragma once
-#include <atomic>
-
-#include "common/assert.h"
-#include "common/common_types.h"
-
namespace Kernel {
-namespace impl {
-
-class KSlabHeapImpl final : NonCopyable {
-public:
- struct Node {
- Node* next{};
- };
-
- constexpr KSlabHeapImpl() = default;
-
- void Initialize(std::size_t size) {
- ASSERT(head == nullptr);
- obj_size = size;
- }
-
- constexpr std::size_t GetObjectSize() const {
- return obj_size;
- }
-
- Node* GetHead() const {
- return head;
- }
-
- void* Allocate() {
- Node* ret = head.load();
-
- do {
- if (ret == nullptr) {
- break;
- }
- } while (!head.compare_exchange_weak(ret, ret->next));
-
- return ret;
- }
-
- void Free(void* obj) {
- Node* node = static_cast<Node*>(obj);
-
- Node* cur_head = head.load();
- do {
- node->next = cur_head;
- } while (!head.compare_exchange_weak(cur_head, node));
- }
-
-private:
- std::atomic<Node*> head{};
- std::size_t obj_size{};
-};
-
-} // namespace impl
-
-class KSlabHeapBase : NonCopyable {
-public:
- constexpr KSlabHeapBase() = default;
-
- constexpr bool Contains(uintptr_t addr) const {
- return start <= addr && addr < end;
- }
-
- constexpr std::size_t GetSlabHeapSize() const {
- return (end - start) / GetObjectSize();
- }
-
- constexpr std::size_t GetObjectSize() const {
- return impl.GetObjectSize();
- }
+class KernelCore;
- constexpr uintptr_t GetSlabHeapAddress() const {
- return start;
- }
-
- std::size_t GetObjectIndexImpl(const void* obj) const {
- return (reinterpret_cast<uintptr_t>(obj) - start) / GetObjectSize();
- }
-
- std::size_t GetPeakIndex() const {
- return GetObjectIndexImpl(reinterpret_cast<const void*>(peak));
- }
-
- void* AllocateImpl() {
- return impl.Allocate();
- }
-
- void FreeImpl(void* obj) {
- // Don't allow freeing an object that wasn't allocated from this heap
- ASSERT(Contains(reinterpret_cast<uintptr_t>(obj)));
-
- impl.Free(obj);
- }
-
- void InitializeImpl(std::size_t obj_size, void* memory, std::size_t memory_size) {
- // Ensure we don't initialize a slab using null memory
- ASSERT(memory != nullptr);
-
- // Initialize the base allocator
- impl.Initialize(obj_size);
-
- // Set our tracking variables
- const std::size_t num_obj = (memory_size / obj_size);
- start = reinterpret_cast<uintptr_t>(memory);
- end = start + num_obj * obj_size;
- peak = start;
-
- // Free the objects
- u8* cur = reinterpret_cast<u8*>(end);
-
- for (std::size_t i{}; i < num_obj; i++) {
- cur -= obj_size;
- impl.Free(cur);
- }
- }
-
-private:
- using Impl = impl::KSlabHeapImpl;
-
- Impl impl;
- uintptr_t peak{};
- uintptr_t start{};
- uintptr_t end{};
-};
+/// This is a placeholder class to manage slab heaps for kernel objects. For now, we just allocate
+/// these with new/delete, but this can be re-implemented later to allocate these in emulated
+/// memory.
template <typename T>
-class KSlabHeap final : public KSlabHeapBase {
+class KSlabHeap final : NonCopyable {
public:
- constexpr KSlabHeap() : KSlabHeapBase() {}
+ KSlabHeap() = default;
- void Initialize(void* memory, std::size_t memory_size) {
- InitializeImpl(sizeof(T), memory, memory_size);
+ void Initialize([[maybe_unused]] void* memory, [[maybe_unused]] std::size_t memory_size) {
+ // Placeholder that should initialize the backing slab heap implementation.
}
T* Allocate() {
- T* obj = static_cast<T*>(AllocateImpl());
- if (obj != nullptr) {
- new (obj) T();
- }
- return obj;
+ return new T();
}
T* AllocateWithKernel(KernelCore& kernel) {
- T* obj = static_cast<T*>(AllocateImpl());
- if (obj != nullptr) {
- new (obj) T(kernel);
- }
- return obj;
+ return new T(kernel);
}
void Free(T* obj) {
- FreeImpl(obj);
- }
-
- constexpr std::size_t GetObjectIndex(const T* obj) const {
- return GetObjectIndexImpl(obj);
+ delete obj;
}
};
diff --git a/src/core/hle/kernel/service_thread.cpp b/src/core/hle/kernel/service_thread.cpp
index 04be8a502..2ae80beca 100644
--- a/src/core/hle/kernel/service_thread.cpp
+++ b/src/core/hle/kernel/service_thread.cpp
@@ -74,21 +74,17 @@ void ServiceThread::Impl::QueueSyncRequest(KSession& session,
{
std::unique_lock lock{queue_mutex};
+ auto* server_session{&session.GetServerSession()};
+
// Open a reference to the session to ensure it is not closes while the service request
// completes asynchronously.
- session.Open();
+ server_session->Open();
- requests.emplace([session_ptr{&session}, context{std::move(context)}]() {
+ requests.emplace([server_session, context{std::move(context)}]() {
// Close the reference.
- SCOPE_EXIT({ session_ptr->Close(); });
-
- // If the session has been closed, we are done.
- if (session_ptr->IsServerClosed()) {
- return;
- }
+ SCOPE_EXIT({ server_session->Close(); });
// Complete the service request.
- KScopedAutoObject server_session{&session_ptr->GetServerSession()};
server_session->CompleteSyncRequest(*context);
});
}
diff --git a/src/core/hle/kernel/slab_helpers.h b/src/core/hle/kernel/slab_helpers.h
index d0f7f084b..0c5995db0 100644
--- a/src/core/hle/kernel/slab_helpers.h
+++ b/src/core/hle/kernel/slab_helpers.h
@@ -67,11 +67,11 @@ class KAutoObjectWithSlabHeapAndContainer : public Base {
private:
static Derived* Allocate(KernelCore& kernel) {
- return new Derived(kernel);
+ return kernel.SlabHeap<Derived>().AllocateWithKernel(kernel);
}
static void Free(KernelCore& kernel, Derived* obj) {
- delete obj;
+ kernel.SlabHeap<Derived>().Free(obj);
}
public: