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authorbunnei <bunneidev@gmail.com>2022-04-12 23:01:40 +0200
committerGitHub <noreply@github.com>2022-04-12 23:01:40 +0200
commitca2accfb259b948431ec174ead432778f3c86f67 (patch)
treef3729b67e09270683a948f48169185c2360cc4af /src/core/hle/kernel
parentMerge pull request #8178 from tech-ticks/skyline-icache-fix (diff)
parenthle: kernel: Unify and integrate reference tracking for KServerPort/KServerSession. (diff)
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Diffstat (limited to 'src/core/hle/kernel')
-rw-r--r--src/core/hle/kernel/hle_ipc.cpp5
-rw-r--r--src/core/hle/kernel/k_auto_object.h5
-rw-r--r--src/core/hle/kernel/k_server_port.cpp6
-rw-r--r--src/core/hle/kernel/k_server_session.cpp3
-rw-r--r--src/core/hle/kernel/kernel.cpp41
-rw-r--r--src/core/hle/kernel/kernel.h8
6 files changed, 51 insertions, 17 deletions
diff --git a/src/core/hle/kernel/hle_ipc.cpp b/src/core/hle/kernel/hle_ipc.cpp
index b547a3463..5828ac923 100644
--- a/src/core/hle/kernel/hle_ipc.cpp
+++ b/src/core/hle/kernel/hle_ipc.cpp
@@ -51,7 +51,7 @@ bool SessionRequestManager::HasSessionRequestHandler(const HLERequestContext& co
LOG_CRITICAL(IPC, "object_id {} is too big!", object_id);
return false;
}
- return DomainHandler(object_id - 1).lock() != nullptr;
+ return !DomainHandler(object_id - 1).expired();
} else {
return session_handler != nullptr;
}
@@ -59,6 +59,9 @@ bool SessionRequestManager::HasSessionRequestHandler(const HLERequestContext& co
void SessionRequestHandler::ClientConnected(KServerSession* session) {
session->ClientConnected(shared_from_this());
+
+ // Ensure our server session is tracked globally.
+ kernel.RegisterServerObject(session);
}
void SessionRequestHandler::ClientDisconnected(KServerSession* session) {
diff --git a/src/core/hle/kernel/k_auto_object.h b/src/core/hle/kernel/k_auto_object.h
index abdb8ae7c..423e8d8f5 100644
--- a/src/core/hle/kernel/k_auto_object.h
+++ b/src/core/hle/kernel/k_auto_object.h
@@ -89,9 +89,7 @@ public:
explicit KAutoObject(KernelCore& kernel_) : kernel(kernel_) {
RegisterWithKernel();
}
- virtual ~KAutoObject() {
- UnregisterWithKernel();
- }
+ virtual ~KAutoObject() = default;
static KAutoObject* Create(KAutoObject* ptr);
@@ -168,6 +166,7 @@ public:
// If ref count hits zero, destroy the object.
if (cur_ref_count - 1 == 0) {
this->Destroy();
+ this->UnregisterWithKernel();
}
}
diff --git a/src/core/hle/kernel/k_server_port.cpp b/src/core/hle/kernel/k_server_port.cpp
index 433fc98e1..e66c0c992 100644
--- a/src/core/hle/kernel/k_server_port.cpp
+++ b/src/core/hle/kernel/k_server_port.cpp
@@ -62,6 +62,12 @@ void KServerPort::Destroy() {
// Close our reference to our parent.
parent->Close();
+
+ // Release host emulation members.
+ session_handler.reset();
+
+ // Ensure that the global list tracking server objects does not hold on to a reference.
+ kernel.UnregisterServerObject(this);
}
bool KServerPort::IsSignaled() const {
diff --git a/src/core/hle/kernel/k_server_session.cpp b/src/core/hle/kernel/k_server_session.cpp
index 30c56ff29..7ac2ef254 100644
--- a/src/core/hle/kernel/k_server_session.cpp
+++ b/src/core/hle/kernel/k_server_session.cpp
@@ -49,6 +49,9 @@ void KServerSession::Destroy() {
// Release host emulation members.
manager.reset();
+
+ // Ensure that the global list tracking server objects does not hold on to a reference.
+ kernel.UnregisterServerObject(this);
}
void KServerSession::OnClientClosed() {
diff --git a/src/core/hle/kernel/kernel.cpp b/src/core/hle/kernel/kernel.cpp
index 481a0d7cb..d840d44e6 100644
--- a/src/core/hle/kernel/kernel.cpp
+++ b/src/core/hle/kernel/kernel.cpp
@@ -96,15 +96,15 @@ struct KernelCore::Impl {
process_list.clear();
- // Close all open server ports.
- std::unordered_set<KServerPort*> server_ports_;
+ // Close all open server sessions and ports.
+ std::unordered_set<KAutoObject*> server_objects_;
{
- std::scoped_lock lk{server_ports_lock};
- server_ports_ = server_ports;
- server_ports.clear();
+ std::scoped_lock lk(server_objects_lock);
+ server_objects_ = server_objects;
+ server_objects.clear();
}
- for (auto* server_port : server_ports_) {
- server_port->Close();
+ for (auto* server_object : server_objects_) {
+ server_object->Close();
}
// Ensures all service threads gracefully shutdown.
@@ -659,13 +659,20 @@ struct KernelCore::Impl {
}
KClientPort* port = &search->second(system.ServiceManager(), system);
- {
- std::scoped_lock lk{server_ports_lock};
- server_ports.insert(&port->GetParent()->GetServerPort());
- }
+ RegisterServerObject(&port->GetParent()->GetServerPort());
return port;
}
+ void RegisterServerObject(KAutoObject* server_object) {
+ std::scoped_lock lk(server_objects_lock);
+ server_objects.insert(server_object);
+ }
+
+ void UnregisterServerObject(KAutoObject* server_object) {
+ std::scoped_lock lk(server_objects_lock);
+ server_objects.erase(server_object);
+ }
+
std::weak_ptr<Kernel::ServiceThread> CreateServiceThread(KernelCore& kernel,
const std::string& name) {
auto service_thread = std::make_shared<Kernel::ServiceThread>(kernel, 1, name);
@@ -693,7 +700,7 @@ struct KernelCore::Impl {
service_threads_manager.QueueWork([this]() { service_threads.clear(); });
}
- std::mutex server_ports_lock;
+ std::mutex server_objects_lock;
std::mutex registered_objects_lock;
std::mutex registered_in_use_objects_lock;
@@ -723,7 +730,7 @@ struct KernelCore::Impl {
/// the ConnectToPort SVC.
std::unordered_map<std::string, ServiceInterfaceFactory> service_interface_factory;
NamedPortTable named_ports;
- std::unordered_set<KServerPort*> server_ports;
+ std::unordered_set<KAutoObject*> server_objects;
std::unordered_set<KAutoObject*> registered_objects;
std::unordered_set<KAutoObject*> registered_in_use_objects;
@@ -928,6 +935,14 @@ KClientPort* KernelCore::CreateNamedServicePort(std::string name) {
return impl->CreateNamedServicePort(std::move(name));
}
+void KernelCore::RegisterServerObject(KAutoObject* server_object) {
+ impl->RegisterServerObject(server_object);
+}
+
+void KernelCore::UnregisterServerObject(KAutoObject* server_object) {
+ impl->UnregisterServerObject(server_object);
+}
+
void KernelCore::RegisterKernelObject(KAutoObject* object) {
std::scoped_lock lk{impl->registered_objects_lock};
impl->registered_objects.insert(object);
diff --git a/src/core/hle/kernel/kernel.h b/src/core/hle/kernel/kernel.h
index 24e26fa44..d709c368b 100644
--- a/src/core/hle/kernel/kernel.h
+++ b/src/core/hle/kernel/kernel.h
@@ -195,6 +195,14 @@ public:
/// Opens a port to a service previously registered with RegisterNamedService.
KClientPort* CreateNamedServicePort(std::string name);
+ /// Registers a server session or port with the gobal emulation state, to be freed on shutdown.
+ /// This is necessary because we do not emulate processes for HLE sessions and ports.
+ void RegisterServerObject(KAutoObject* server_object);
+
+ /// Unregisters a server session or port previously registered with RegisterServerSession when
+ /// it was destroyed during the current emulation session.
+ void UnregisterServerObject(KAutoObject* server_object);
+
/// Registers all kernel objects with the global emulation state, this is purely for tracking
/// leaks after emulation has been shutdown.
void RegisterKernelObject(KAutoObject* object);