Merge pull request #440 from yuriks/lifetime-fix
Fix double-free in Service manager during shutdown
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commit
43ba29f3bf
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@ -46,36 +46,22 @@ Manager* g_manager = nullptr; ///< Service manager
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////////////////////////////////////////////////////////////////////////////////////////////////////
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////////////////////////////////////////////////////////////////////////////////////////////////////
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// Service Manager class
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// Service Manager class
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Manager::Manager() {
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}
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Manager::~Manager() {
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for(Interface* service : m_services) {
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DeleteService(service->GetPortName());
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}
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}
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/// Add a service to the manager (does not create it though)
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void Manager::AddService(Interface* service) {
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void Manager::AddService(Interface* service) {
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// TOOD(yuriks): Fix error reporting
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// TOOD(yuriks): Fix error reporting
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m_port_map[service->GetPortName()] = Kernel::g_handle_table.Create(service).ValueOr(INVALID_HANDLE);
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m_port_map[service->GetPortName()] = Kernel::g_handle_table.Create(service).ValueOr(INVALID_HANDLE);
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m_services.push_back(service);
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m_services.push_back(service);
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}
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}
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/// Removes a service from the manager, also frees memory
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void Manager::DeleteService(const std::string& port_name) {
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void Manager::DeleteService(const std::string& port_name) {
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Interface* service = FetchFromPortName(port_name);
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Interface* service = FetchFromPortName(port_name);
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m_services.erase(std::remove(m_services.begin(), m_services.end(), service), m_services.end());
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m_services.erase(std::remove(m_services.begin(), m_services.end(), service), m_services.end());
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m_port_map.erase(port_name);
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m_port_map.erase(port_name);
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delete service;
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}
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}
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/// Get a Service Interface from its Handle
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Interface* Manager::FetchFromHandle(Handle handle) {
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Interface* Manager::FetchFromHandle(Handle handle) {
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return Kernel::g_handle_table.Get<Interface>(handle);
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return Kernel::g_handle_table.Get<Interface>(handle);
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}
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}
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/// Get a Service Interface from its port
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Interface* Manager::FetchFromPortName(const std::string& port_name) {
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Interface* Manager::FetchFromPortName(const std::string& port_name) {
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auto itr = m_port_map.find(port_name);
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auto itr = m_port_map.find(port_name);
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if (itr == m_port_map.end()) {
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if (itr == m_port_map.end()) {
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@ -114,29 +114,22 @@ private:
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/// Simple class to manage accessing services from ports and UID handles
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/// Simple class to manage accessing services from ports and UID handles
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class Manager {
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class Manager {
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public:
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public:
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Manager();
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/// Add a service to the manager
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~Manager();
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/// Add a service to the manager (does not create it though)
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void AddService(Interface* service);
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void AddService(Interface* service);
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/// Removes a service from the manager (does not delete it though)
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/// Removes a service from the manager
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void DeleteService(const std::string& port_name);
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void DeleteService(const std::string& port_name);
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/// Get a Service Interface from its UID
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/// Get a Service Interface from its Handle
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Interface* FetchFromHandle(u32 uid);
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Interface* FetchFromHandle(Handle handle);
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/// Get a Service Interface from its port
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/// Get a Service Interface from its port
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Interface* FetchFromPortName(const std::string& port_name);
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Interface* FetchFromPortName(const std::string& port_name);
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private:
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private:
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std::vector<Interface*> m_services;
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std::vector<Interface*> m_services;
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std::map<std::string, u32> m_port_map;
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std::map<std::string, u32> m_port_map;
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};
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};
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/// Initialize ServiceManager
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/// Initialize ServiceManager
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