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Atmosphere/libraries/libmesosphere/include/mesosphere/kern_k_object_name.hpp
2021-04-11 03:42:16 -07:00

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2.6 KiB
C++

/*
* Copyright (c) 2018-2020 Atmosphère-NX
*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
* version 2, as published by the Free Software Foundation.
*
* This program is distributed in the hope it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#pragma once
#include <mesosphere/kern_common.hpp>
#include <mesosphere/kern_k_auto_object.hpp>
#include <mesosphere/kern_k_light_lock.hpp>
#include <mesosphere/kern_slab_helpers.hpp>
namespace ams::kern {
class KObjectName : public KSlabAllocated<KObjectName>, public util::IntrusiveListBaseNode<KObjectName> {
public:
static constexpr size_t NameLengthMax = 12;
using List = util::IntrusiveListBaseTraits<KObjectName>::ListType;
private:
char m_name[NameLengthMax];
KAutoObject *m_object;
public:
constexpr KObjectName() : m_name(), m_object() { /* ... */ }
public:
static Result NewFromName(KAutoObject *obj, const char *name);
static Result Delete(KAutoObject *obj, const char *name);
static KScopedAutoObject<KAutoObject> Find(const char *name);
template<typename Derived>
static Result Delete(const char *name) {
/* Find the object. */
KScopedAutoObject obj = Find(name);
R_UNLESS(obj.IsNotNull(), svc::ResultNotFound());
/* Cast the object to the desired type. */
Derived *derived = obj->DynamicCast<Derived *>();
R_UNLESS(derived != nullptr, svc::ResultNotFound());
/* Check that the object is closed. */
R_UNLESS(derived->IsServerClosed(), svc::ResultInvalidState());
return Delete(obj.GetPointerUnsafe(), name);
}
template<typename Derived> requires std::derived_from<Derived, KAutoObject>
static KScopedAutoObject<Derived> Find(const char *name) {
return Find(name);
}
private:
static KScopedAutoObject<KAutoObject> FindImpl(const char *name);
void Initialize(KAutoObject *obj, const char *name);
bool MatchesName(const char *name) const;
KAutoObject *GetObject() const { return m_object; }
};
}