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// Copyright 2014 Citra Emulator Project
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
#include <map>
#include <algorithm>
#include <vector>
#include "common/common.h"
#include "core/hle/kernel/kernel.h"
#include "core/hle/kernel/event.h"
#include "core/hle/kernel/thread.h"
namespace Kernel {
class Event : public WaitObject {
public:
std::string GetTypeName() const override { return "Event"; }
std::string GetName() const override { return name; }
static const HandleType HANDLE_TYPE = HandleType::Event;
HandleType GetHandleType() const override { return HANDLE_TYPE; }
ResetType intitial_reset_type; ///< ResetType specified at Event initialization
ResetType reset_type; ///< Current ResetType
bool signaled; ///< Whether the event has already been signaled
std::string name; ///< Name of event (optional)
bool ShouldWait() override {
return !signaled;
}
void Acquire() override {
_assert_msg_(Kernel, !ShouldWait(), "object unavailable!");
// Release the event if it's not sticky...
if (reset_type != RESETTYPE_STICKY)
signaled = false;
}
};
ResultCode SignalEvent(const Handle handle) {
Event* evt = g_handle_table.Get<Event>(handle).get();
if (evt == nullptr)
return InvalidHandle(ErrorModule::Kernel);
evt->signaled = true;
evt->WakeupAllWaitingThreads();
return RESULT_SUCCESS;
}
ResultCode ClearEvent(Handle handle) {
Event* evt = g_handle_table.Get<Event>(handle).get();
if (evt == nullptr)
return InvalidHandle(ErrorModule::Kernel);
evt->signaled = false;
return RESULT_SUCCESS;
}
/**
* Creates an event
* @param handle Reference to handle for the newly created mutex
* @param reset_type ResetType describing how to create event
* @param name Optional name of event
* @return Newly created Event object
*/
static Event* CreateEvent(Handle& handle, const ResetType reset_type, const std::string& name) {
Event* evt = new Event;
// TOOD(yuriks): Fix error reporting
handle = Kernel::g_handle_table.Create(evt).ValueOr(INVALID_HANDLE);
evt->signaled = false;
evt->reset_type = evt->intitial_reset_type = reset_type;
evt->name = name;
return evt;
}
Handle CreateEvent(const ResetType reset_type, const std::string& name) {
Handle handle;
Event* evt = CreateEvent(handle, reset_type, name);
return handle;
}
} // namespace
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