src/core/hle/kernel/event.cpp


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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 {

ResultVal<SharedPtr<Event>> Event::Create(ResetType reset_type, std::string name) {
    SharedPtr<Event> evt(new Event);
    // TOOD(yuriks): Don't create Handle (see Thread::Create())
    CASCADE_RESULT(auto unused, Kernel::g_handle_table.Create(evt));

    evt->signaled = false;
    evt->reset_type = evt->intitial_reset_type = reset_type;
    evt->name = std::move(name);

    return MakeResult<SharedPtr<Event>>(evt);
}

bool Event::ShouldWait() {
    return !signaled;
}

void Event::Acquire() {
    _assert_msg_(Kernel, !ShouldWait(), "object unavailable!");

    // Release the event if it's not sticky...
    if (reset_type != RESETTYPE_STICKY)
        signaled = false;
}

void Event::Signal() {
    signaled = true;
    WakeupAllWaitingThreads();
}

void Event::Clear() {
    signaled = false;
}

} // namespace