Atmosphere/libraries/libstratosphere/include/stratosphere/os/os_io_region.hpp
2021-09-30 11:43:17 -07:00

83 lines
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 <vapours.hpp>
#include <stratosphere/os/os_io_region_types.hpp>
#include <stratosphere/os/os_io_region_api.hpp>
namespace ams::os {
class IoRegion {
NON_COPYABLE(IoRegion);
NON_MOVEABLE(IoRegion);
private:
IoRegionType m_io_region;
public:
constexpr IoRegion() : m_io_region{ .state = IoRegionType::State_NotInitialized } {
/* ... */
}
IoRegion(Handle io_pool_handle, uintptr_t address, size_t size, MemoryMapping mapping, MemoryPermission permission) {
R_ABORT_UNLESS(CreateIoRegion(std::addressof(m_io_region), io_pool_handle, address, size, mapping, permission));
}
IoRegion(size_t size, Handle handle, bool managed) {
this->Attach(size, handle, managed);
}
~IoRegion() {
if (m_io_region.state == IoRegionType::State_NotInitialized) {
return;
}
if (m_io_region.state == IoRegionType::State_Mapped) {
this->Unmap();
}
DestroyIoRegion(std::addressof(m_io_region));
}
void Attach(size_t size, Handle handle, bool managed) {
AttachIoRegion(std::addressof(m_io_region), size, handle, managed);
}
Handle GetHandle() const {
return GetIoRegionHandle(std::addressof(m_io_region));
}
Result Map(void **out, MemoryPermission perm) {
return MapIoRegion(out, std::addressof(m_io_region), perm);
}
void Unmap() {
UnmapIoRegion(std::addressof(m_io_region));
}
operator IoRegionType &() {
return m_io_region;
}
operator const IoRegionType &() const {
return m_io_region;
}
IoRegionType *GetBase() {
return std::addressof(m_io_region);
}
};
}