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Merge pull request #2843 from Subv/applet_slots

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Services/APT: Use an array to hold data about the 4 possible concurrent applet types (Application, Library, HomeMenu, System)
This commit is contained in:
Sebastian Valle 2017-08-12 10:27:57 -05:00 • committed by GitHub
commit d59f503729
2 changed files with 201 additions and 36 deletions
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231
src/core/hle/service/apt/apt.cpp
View file

@ -34,8 +34,6 @@ static bool shared_font_loaded = false;
static bool shared_font_relocated = false;
static Kernel::SharedPtr<Kernel::Mutex> lock;
static Kernel::SharedPtr<Kernel::Event> notification_event; ///< APT notification event
static Kernel::SharedPtr<Kernel::Event> parameter_event; ///< APT parameter event
static u32 cpu_percent; ///< CPU time available to the running application
@ -44,32 +42,160 @@ static u8 unknown_ns_state_field;
static ScreencapPostPermission screen_capture_post_permission;
/// Parameter data to be returned in the next call to Glance/ReceiveParameter
/// Parameter data to be returned in the next call to Glance/ReceiveParameter.
/// TODO(Subv): Use std::optional once we migrate to C++17.
static boost::optional<MessageParameter> next_parameter;
enum class AppletPos { Application = 0, Library = 1, System = 2, SysLibrary = 3, Resident = 4 };
static constexpr size_t NumAppletSlot = 4;
enum class AppletSlot : u8 {
Application,
SystemApplet,
HomeMenu,
LibraryApplet,
// An invalid tag
Error,
};
union AppletAttributes {
u32 raw;
BitField<0, 3, u32> applet_pos;
AppletAttributes() : raw(0) {}
AppletAttributes(u32 attributes) : raw(attributes) {}
};
struct AppletSlotData {
AppletId applet_id;
AppletSlot slot;
bool registered;
AppletAttributes attributes;
Kernel::SharedPtr<Kernel::Event> notification_event;
Kernel::SharedPtr<Kernel::Event> parameter_event;
};
// Holds data about the concurrently running applets in the system.
static std::array<AppletSlotData, NumAppletSlot> applet_slots = {};
// This overload returns nullptr if no applet with the specified id has been started.
static AppletSlotData* GetAppletSlotData(AppletId id) {
auto GetSlot = [](AppletSlot slot) -> AppletSlotData* {
return &applet_slots[static_cast<size_t>(slot)];
};
if (id == AppletId::Application) {
auto* slot = GetSlot(AppletSlot::Application);
if (slot->applet_id != AppletId::None)
return slot;
return nullptr;
}
if (id == AppletId::AnySystemApplet) {
auto* system_slot = GetSlot(AppletSlot::SystemApplet);
if (system_slot->applet_id != AppletId::None)
return system_slot;
// The Home Menu is also a system applet, but it lives in its own slot to be able to run
// concurrently with other system applets.
auto* home_slot = GetSlot(AppletSlot::HomeMenu);
if (home_slot->applet_id != AppletId::None)
return home_slot;
return nullptr;
}
if (id == AppletId::AnyLibraryApplet || id == AppletId::AnySysLibraryApplet) {
auto* slot = GetSlot(AppletSlot::LibraryApplet);
if (slot->applet_id == AppletId::None)
return nullptr;
u32 applet_pos = slot->attributes.applet_pos;
if (id == AppletId::AnyLibraryApplet && applet_pos == static_cast<u32>(AppletPos::Library))
return slot;
if (id == AppletId::AnySysLibraryApplet &&
applet_pos == static_cast<u32>(AppletPos::SysLibrary))
return slot;
return nullptr;
}
if (id == AppletId::HomeMenu || id == AppletId::AlternateMenu) {
auto* slot = GetSlot(AppletSlot::HomeMenu);
if (slot->applet_id != AppletId::None)
return slot;
return nullptr;
}
for (auto& slot : applet_slots) {
if (slot.applet_id == id)
return &slot;
}
return nullptr;
}
static AppletSlotData* GetAppletSlotData(AppletAttributes attributes) {
// Mapping from AppletPos to AppletSlot
static constexpr std::array<AppletSlot, 6> applet_position_slots = {
AppletSlot::Application, AppletSlot::LibraryApplet, AppletSlot::SystemApplet,
AppletSlot::LibraryApplet, AppletSlot::Error, AppletSlot::LibraryApplet};
u32 applet_pos = attributes.applet_pos;
if (applet_pos >= applet_position_slots.size())
return nullptr;
AppletSlot slot = applet_position_slots[applet_pos];
if (slot == AppletSlot::Error)
return nullptr;
return &applet_slots[static_cast<size_t>(slot)];
}
void SendParameter(const MessageParameter& parameter) {
next_parameter = parameter;
// Signal the event to let the application know that a new parameter is ready to be read
parameter_event->Signal();
// Signal the event to let the receiver know that a new parameter is ready to be read
auto* const slot_data = GetAppletSlotData(static_cast<AppletId>(parameter.destination_id));
ASSERT(slot_data);
slot_data->parameter_event->Signal();
}
void Initialize(Service::Interface* self) {
IPC::RequestParser rp(Kernel::GetCommandBuffer(), 0x2, 2, 0); // 0x20080
u32 app_id = rp.Pop<u32>();
u32 flags = rp.Pop<u32>();
u32 attributes = rp.Pop<u32>();
LOG_DEBUG(Service_APT, "called app_id=0x%08X, attributes=0x%08X", app_id, attributes);
auto* const slot_data = GetAppletSlotData(attributes);
// Note: The real NS service does not check if the attributes value is valid before accessing
// the data in the array
ASSERT_MSG(slot_data, "Invalid application attributes");
if (slot_data->registered) {
IPC::RequestBuilder rb = rp.MakeBuilder(1, 0);
rb.Push(ResultCode(ErrorDescription::AlreadyExists, ErrorModule::Applet,
ErrorSummary::InvalidState, ErrorLevel::Status));
return;
}
slot_data->applet_id = static_cast<AppletId>(app_id);
slot_data->attributes.raw = attributes;
IPC::RequestBuilder rb = rp.MakeBuilder(1, 3);
rb.Push(RESULT_SUCCESS);
rb.PushCopyHandles(Kernel::g_handle_table.Create(notification_event).Unwrap(),
Kernel::g_handle_table.Create(parameter_event).Unwrap());
// TODO(bunnei): Check if these events are cleared every time Initialize is called.
notification_event->Clear();
parameter_event->Clear();
ASSERT_MSG((nullptr != lock), "Cannot initialize without lock");
lock->Release();
LOG_DEBUG(Service_APT, "called app_id=0x%08X, flags=0x%08X", app_id, flags);
rb.PushCopyHandles(Kernel::g_handle_table.Create(slot_data->notification_event).Unwrap(),
Kernel::g_handle_table.Create(slot_data->parameter_event).Unwrap());
}
void GetSharedFont(Service::Interface* self) {
@ -120,7 +246,12 @@ void GetLockHandle(Service::Interface* self) {
// this will cause the app to wait until parameter_event is signaled.
u32 applet_attributes = rp.Pop<u32>();
IPC::RequestBuilder rb = rp.MakeBuilder(3, 2);
rb.Push(RESULT_SUCCESS); // No error
rb.Push(RESULT_SUCCESS); // No error
// TODO(Subv): The output attributes should have an AppletPos of either Library or System |
// Library (depending on the type of the last launched applet) if the input attributes'
// AppletPos has the Library bit set.
rb.Push(applet_attributes); // Applet Attributes, this value is passed to Enable.
rb.Push<u32>(0); // Least significant bit = power button state
Kernel::Handle handle_copy = Kernel::g_handle_table.Create(lock).Unwrap();
@ -133,10 +264,22 @@ void GetLockHandle(Service::Interface* self) {
void Enable(Service::Interface* self) {
IPC::RequestParser rp(Kernel::GetCommandBuffer(), 0x3, 1, 0); // 0x30040
u32 attributes = rp.Pop<u32>();
LOG_DEBUG(Service_APT, "called attributes=0x%08X", attributes);
IPC::RequestBuilder rb = rp.MakeBuilder(1, 0);
rb.Push(RESULT_SUCCESS); // No error
parameter_event->Signal(); // Let the application know that it has been started
LOG_WARNING(Service_APT, "(STUBBED) called attributes=0x%08X", attributes);
auto* const slot_data = GetAppletSlotData(attributes);
if (!slot_data) {
rb.Push(ResultCode(ErrCodes::InvalidAppletSlot, ErrorModule::Applet,
ErrorSummary::InvalidState, ErrorLevel::Status));
return;
}
slot_data->registered = true;
rb.Push(RESULT_SUCCESS);
}
void GetAppletManInfo(Service::Interface* self) {
@ -154,22 +297,27 @@ void GetAppletManInfo(Service::Interface* self) {
void IsRegistered(Service::Interface* self) {
IPC::RequestParser rp(Kernel::GetCommandBuffer(), 0x9, 1, 0); // 0x90040
u32 app_id = rp.Pop<u32>();
AppletId app_id = static_cast<AppletId>(rp.Pop<u32>());
IPC::RequestBuilder rb = rp.MakeBuilder(2, 0);
rb.Push(RESULT_SUCCESS); // No error
// TODO(Subv): An application is considered "registered" if it has already called APT::Enable
// handle this properly once we implement multiprocess support.
bool is_registered = false; // Set to not registered by default
auto* const slot_data = GetAppletSlotData(app_id);
if (app_id == static_cast<u32>(AppletId::AnyLibraryApplet)) {
is_registered = HLE::Applets::IsLibraryAppletRunning();
} else if (auto applet = HLE::Applets::Applet::Get(static_cast<AppletId>(app_id))) {
is_registered = true; // Set to registered
// Check if an LLE applet was registered first, then fallback to HLE applets
bool is_registered = slot_data && slot_data->registered;
if (!is_registered) {
if (app_id == AppletId::AnyLibraryApplet) {
is_registered = HLE::Applets::IsLibraryAppletRunning();
} else if (auto applet = HLE::Applets::Applet::Get(app_id)) {
// The applet exists, set it as registered.
is_registered = true;
}
}
rb.Push(is_registered);
LOG_WARNING(Service_APT, "(STUBBED) called app_id=0x%08X", app_id);
LOG_DEBUG(Service_APT, "called app_id=0x%08X", static_cast<u32>(app_id));
}
void InquireNotification(Service::Interface* self) {
@ -864,14 +1012,23 @@ void Init() {
screen_capture_post_permission =
ScreencapPostPermission::CleanThePermission; // TODO(JamePeng): verify the initial value
// TODO(bunnei): Check if these are created in Initialize or on APT process startup.
notification_event = Kernel::Event::Create(Kernel::ResetType::OneShot, "APT_U:Notification");
parameter_event = Kernel::Event::Create(Kernel::ResetType::OneShot, "APT_U:Start");
for (size_t slot = 0; slot < applet_slots.size(); ++slot) {
auto& slot_data = applet_slots[slot];
slot_data.slot = static_cast<AppletSlot>(slot);
slot_data.applet_id = AppletId::None;
slot_data.attributes.raw = 0;
slot_data.registered = false;
slot_data.notification_event =
Kernel::Event::Create(Kernel::ResetType::OneShot, "APT:Notification");
slot_data.parameter_event =
Kernel::Event::Create(Kernel::ResetType::OneShot, "APT:Parameter");
}
// Initialize the parameter to wake up the application.
next_parameter.emplace();
next_parameter->signal = static_cast<u32>(SignalType::Wakeup);
next_parameter->destination_id = static_cast<u32>(AppletId::Application);
applet_slots[static_cast<size_t>(AppletSlot::Application)].parameter_event->Signal();
}
void Shutdown() {
@ -879,8 +1036,12 @@ void Shutdown() {
shared_font_loaded = false;
shared_font_relocated = false;
lock = nullptr;
notification_event = nullptr;
parameter_event = nullptr;
for (auto& slot : applet_slots) {
slot.registered = false;
slot.notification_event = nullptr;
slot.parameter_event = nullptr;
}
next_parameter = boost::none;

6
src/core/hle/service/apt/apt.h
View file

@ -72,6 +72,8 @@ enum class SignalType : u32 {
/// App Id's used by APT functions
enum class AppletId : u32 {
None = 0,
AnySystemApplet = 0x100,
HomeMenu = 0x101,
AlternateMenu = 0x103,
Camera = 0x110,
@ -83,6 +85,7 @@ enum class AppletId : u32 {
Miiverse = 0x117,
MiiversePost = 0x118,
AmiiboSettings = 0x119,
AnySysLibraryApplet = 0x200,
SoftwareKeyboard1 = 0x201,
Ed1 = 0x202,
PnoteApp = 0x204,
@ -119,8 +122,9 @@ enum class ScreencapPostPermission : u32 {
namespace ErrCodes {
enum {
ParameterPresent = 2,
InvalidAppletSlot = 4,
};
}
} // namespace ErrCodes
/// Send a parameter to the currently-running application, which will read it via ReceiveParameter
void SendParameter(const MessageParameter& parameter);