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// SPDX-FileCopyrightText: Copyright 2026 Eden Emulator Project
// SPDX-License-Identifier: GPL-3.0-or-later
// SPDX-FileCopyrightText: Copyright 2021 yuzu Emulator Project
// SPDX-License-Identifier: GPL-2.0-or-later
#pragma once
#include "common/common_types.h"
#include "core/hle/kernel/k_process.h"
#include "core/hle/kernel/k_resource_limit.h"
namespace Kernel {
class KScopedResourceReservation {
public:
explicit KScopedResourceReservation(KernelCore& kernel, KResourceLimit* l, LimitableResource r, s64 v, s64 timeout)
: m_kernel{kernel}
, m_limit(l)
, m_value(v)
, m_resource(r)
{
if (m_limit && m_value) {
m_succeeded = m_limit->Reserve(kernel, m_resource, m_value, timeout);
} else {
m_succeeded = true;
}
}
explicit KScopedResourceReservation(KernelCore& kernel, KResourceLimit* l, LimitableResource r, s64 v = 1)
: m_kernel{kernel}
, m_limit(l)
, m_value(v)
, m_resource(r)
{
if (m_limit && m_value) {
m_succeeded = m_limit->Reserve(kernel, m_resource, m_value);
} else {
m_succeeded = true;
}
}
explicit KScopedResourceReservation(KernelCore& kernel, const KProcess* p, LimitableResource r, s64 v, s64 t)
: KScopedResourceReservation(kernel, p->GetResourceLimit(), r, v, t) {}
explicit KScopedResourceReservation(KernelCore& kernel, const KProcess* p, LimitableResource r, s64 v = 1)
: KScopedResourceReservation(kernel, p->GetResourceLimit(), r, v) {}
~KScopedResourceReservation() noexcept {
if (m_limit && m_value && m_succeeded) {
// Resource was not committed, release the reservation.
m_limit->Release(m_kernel, m_resource, m_value);
}
}
/// Commit the resource reservation, destruction of this object does not release the resource
void Commit() {
m_limit = nullptr;
}
bool Succeeded() const {
return m_succeeded;
}
private:
KernelCore& m_kernel;
KResourceLimit* m_limit{};
s64 m_value{};
LimitableResource m_resource{};
bool m_succeeded{};
};
} // namespace Kernel
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