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