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Event: Fixed some bugs and cleanup (Subv)

This commit is contained in:
bunnei 2015-01-15 19:29:46 -05:00
parent 1f7a04f05a
commit e4a5d8ad4f
4 changed files with 16 additions and 57 deletions

View file

@ -25,66 +25,36 @@ public:
ResetType intitial_reset_type; ///< ResetType specified at Event initialization
ResetType reset_type; ///< Current ResetType
bool locked; ///< Event signal wait
bool signaled; ///< Whether the event has already been signaled
std::string name; ///< Name of event (optional)
ResultVal<bool> WaitSynchronization() override {
bool wait = locked;
if (locked) {
bool wait = !signaled;
if (wait) {
AddWaitingThread(GetCurrentThread());
Kernel::WaitCurrentThread(WAITTYPE_EVENT, this);
}
if (reset_type != RESETTYPE_STICKY) {
locked = true;
}
return MakeResult<bool>(wait);
}
};
/**
* Changes whether an event is locked or not
* @param handle Handle to event to change
* @param locked Boolean locked value to set event
* @return Result of operation, 0 on success, otherwise error code
*/
ResultCode SetEventLocked(const Handle handle, const bool locked) {
Event* evt = g_handle_table.Get<Event>(handle).get();
if (evt == nullptr) return InvalidHandle(ErrorModule::Kernel);
evt->locked = locked;
return RESULT_SUCCESS;
}
/**
* Signals an event
* @param handle Handle to event to signal
* @return Result of operation, 0 on success, otherwise error code
*/
ResultCode SignalEvent(const Handle handle) {
Event* evt = g_handle_table.Get<Event>(handle).get();
if (evt == nullptr) return InvalidHandle(ErrorModule::Kernel);
if (evt == nullptr)
return InvalidHandle(ErrorModule::Kernel);
// If any thread is signalled awake by this event, assume the event was "caught" and reset
// the event. This will result in the next thread waiting on the event to block. Otherwise,
// the event will not be reset, and the next thread to call WaitSynchronization on it will
// not block. Not sure if this is correct behavior, but it seems to work.
// TODO(bunnei): Test how this works on hardware
evt->locked = evt->ResumeAllWaitingThreads();
evt->signaled = true;
evt->ReleaseAllWaitingThreads();
return RESULT_SUCCESS;
}
/**
* Clears an event
* @param handle Handle to event to clear
* @return Result of operation, 0 on success, otherwise error code
*/
ResultCode ClearEvent(Handle handle) {
Event* evt = g_handle_table.Get<Event>(handle).get();
if (evt == nullptr) return InvalidHandle(ErrorModule::Kernel);
if (evt == nullptr)
return InvalidHandle(ErrorModule::Kernel);
evt->locked = true;
evt->signaled = false;
return RESULT_SUCCESS;
}
@ -102,19 +72,13 @@ Event* CreateEvent(Handle& handle, const ResetType reset_type, const std::string
// TOOD(yuriks): Fix error reporting
handle = Kernel::g_handle_table.Create(evt).ValueOr(INVALID_HANDLE);
evt->locked = true;
evt->signaled = false;
evt->reset_type = evt->intitial_reset_type = reset_type;
evt->name = name;
return evt;
}
/**
* Creates an event
* @param reset_type ResetType describing how to create event
* @param name Optional name of event
* @return Handle to newly created Event object
*/
Handle CreateEvent(const ResetType reset_type, const std::string& name) {
Handle handle;
Event* evt = CreateEvent(handle, reset_type, name);

View file

@ -11,22 +11,17 @@
namespace Kernel {
/**
* Changes whether an event is locked or not
* @param handle Handle to event to change
* @param locked Boolean locked value to set event
*/
ResultCode SetEventLocked(const Handle handle, const bool locked);
/**
* Signals an event
* @param handle Handle to event to signal
* @return Result of operation, 0 on success, otherwise error code
*/
ResultCode SignalEvent(const Handle handle);
/**
* Clears an event
* @param handle Handle to event to clear
* @return Result of operation, 0 on success, otherwise error code
*/
ResultCode ClearEvent(Handle handle);

View file

@ -50,8 +50,8 @@ void Initialize(Service::Interface* self) {
cmd_buff[3] = notification_event_handle;
cmd_buff[4] = pause_event_handle;
Kernel::SetEventLocked(notification_event_handle, true);
Kernel::SetEventLocked(pause_event_handle, false); // Fire start event
Kernel::ClearEvent(notification_event_handle);
Kernel::SignalEvent(pause_event_handle); // Fire start event
_assert_msg_(KERNEL, (0 != lock_handle), "Cannot initialize without lock");
Kernel::ReleaseMutex(lock_handle);

View file

@ -24,7 +24,7 @@ static void GetProcSemaphore(Service::Interface* self) {
// TODO(bunnei): Change to a semaphore once these have been implemented
g_event_handle = Kernel::CreateEvent(RESETTYPE_ONESHOT, "SRV:Event");
Kernel::SetEventLocked(g_event_handle, false);
Kernel::ClearEvent(g_event_handle);
cmd_buff[1] = 0; // No error
cmd_buff[3] = g_event_handle;