82 lines
2.4 KiB
C++
82 lines
2.4 KiB
C++
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// 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 <algorithm>
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#include "common/assert.h"
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#include "core/hle/kernel/kernel.h"
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#include "core/hle/kernel/object.h"
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#include "core/hle/kernel/readable_event.h"
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#include "core/hle/kernel/thread.h"
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#include "core/hle/kernel/writable_event.h"
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namespace Kernel {
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WritableEvent::WritableEvent(KernelCore& kernel) : WaitObject{kernel} {}
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WritableEvent::~WritableEvent() = default;
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std::tuple<SharedPtr<WritableEvent>, SharedPtr<ReadableEvent>> WritableEvent::CreateEventPair(
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KernelCore& kernel, ResetType reset_type, std::string name) {
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SharedPtr<WritableEvent> writable_event(new WritableEvent(kernel));
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SharedPtr<ReadableEvent> readable_event(new ReadableEvent(kernel));
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writable_event->name = name + ":Writable";
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writable_event->signaled = false;
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writable_event->reset_type = reset_type;
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readable_event->name = name + ":Readable";
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readable_event->writable_event = writable_event;
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return std::make_tuple(std::move(writable_event), std::move(readable_event));
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}
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SharedPtr<WritableEvent> WritableEvent::CreateRegisteredEventPair(KernelCore& kernel,
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ResetType reset_type,
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std::string name) {
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auto [writable_event, readable_event] = CreateEventPair(kernel, reset_type, name);
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kernel.AddNamedEvent(name, std::move(readable_event));
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return std::move(writable_event);
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}
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bool WritableEvent::ShouldWait(Thread* thread) const {
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return !signaled;
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}
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void WritableEvent::Acquire(Thread* thread) {
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ASSERT_MSG(!ShouldWait(thread), "object unavailable!");
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if (reset_type == ResetType::OneShot)
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signaled = false;
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}
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void WritableEvent::Signal() {
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signaled = true;
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WakeupAllWaitingThreads();
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}
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void WritableEvent::Clear() {
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signaled = false;
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}
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void WritableEvent::ResetOnAcquire() {
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if (reset_type == ResetType::OneShot)
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Clear();
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}
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void WritableEvent::ResetOnWakeup() {
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if (reset_type == ResetType::Pulse)
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Clear();
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}
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bool WritableEvent::IsSignaled() const {
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return signaled;
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}
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void WritableEvent::WakeupAllWaitingThreads() {
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WaitObject::WakeupAllWaitingThreads();
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if (reset_type == ResetType::Pulse)
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signaled = false;
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}
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} // namespace Kernel
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