forked from suyu/suyu
89 lines
3.2 KiB
C++
89 lines
3.2 KiB
C++
// Copyright 2014 Citra Emulator Project
|
|
// Licensed under GPLv2 or any later version
|
|
// Refer to the license.txt file included.
|
|
|
|
#pragma once
|
|
|
|
#include <string>
|
|
|
|
#include "common/common_types.h"
|
|
#include "core/device_memory.h"
|
|
#include "core/hle/kernel/k_memory_block.h"
|
|
#include "core/hle/kernel/k_page_linked_list.h"
|
|
#include "core/hle/kernel/k_process.h"
|
|
#include "core/hle/kernel/slab_helpers.h"
|
|
#include "core/hle/result.h"
|
|
|
|
namespace Kernel {
|
|
|
|
class KernelCore;
|
|
|
|
class KSharedMemory final
|
|
: public KAutoObjectWithSlabHeapAndContainer<KSharedMemory, KAutoObjectWithList> {
|
|
KERNEL_AUTOOBJECT_TRAITS(KSharedMemory, KAutoObject);
|
|
|
|
public:
|
|
explicit KSharedMemory(KernelCore& kernel_);
|
|
~KSharedMemory() override;
|
|
|
|
ResultCode Initialize(Core::DeviceMemory& device_memory_, KProcess* owner_process_,
|
|
KPageLinkedList&& page_list_, Svc::MemoryPermission owner_permission_,
|
|
Svc::MemoryPermission user_permission_, PAddr physical_address_,
|
|
std::size_t size_, std::string name_);
|
|
|
|
/**
|
|
* Maps a shared memory block to an address in the target process' address space
|
|
* @param target_process Process on which to map the memory block
|
|
* @param address Address in system memory to map shared memory block to
|
|
* @param map_size Size of the shared memory block to map
|
|
* @param permissions Memory block map permissions (specified by SVC field)
|
|
*/
|
|
ResultCode Map(KProcess& target_process, VAddr address, std::size_t map_size,
|
|
Svc::MemoryPermission permissions);
|
|
|
|
/**
|
|
* Unmaps a shared memory block from an address in the target process' address space
|
|
* @param target_process Process on which to unmap the memory block
|
|
* @param address Address in system memory to unmap shared memory block
|
|
* @param unmap_size Size of the shared memory block to unmap
|
|
*/
|
|
ResultCode Unmap(KProcess& target_process, VAddr address, std::size_t unmap_size);
|
|
|
|
/**
|
|
* Gets a pointer to the shared memory block
|
|
* @param offset Offset from the start of the shared memory block to get pointer
|
|
* @return A pointer to the shared memory block from the specified offset
|
|
*/
|
|
u8* GetPointer(std::size_t offset = 0) {
|
|
return device_memory->GetPointer(physical_address + offset);
|
|
}
|
|
|
|
/**
|
|
* Gets a pointer to the shared memory block
|
|
* @param offset Offset from the start of the shared memory block to get pointer
|
|
* @return A pointer to the shared memory block from the specified offset
|
|
*/
|
|
const u8* GetPointer(std::size_t offset = 0) const {
|
|
return device_memory->GetPointer(physical_address + offset);
|
|
}
|
|
|
|
void Finalize() override;
|
|
|
|
bool IsInitialized() const override {
|
|
return is_initialized;
|
|
}
|
|
static void PostDestroy([[maybe_unused]] uintptr_t arg) {}
|
|
|
|
private:
|
|
Core::DeviceMemory* device_memory;
|
|
KProcess* owner_process{};
|
|
KPageLinkedList page_list;
|
|
Svc::MemoryPermission owner_permission{};
|
|
Svc::MemoryPermission user_permission{};
|
|
PAddr physical_address{};
|
|
std::size_t size{};
|
|
KResourceLimit* resource_limit{};
|
|
bool is_initialized{};
|
|
};
|
|
|
|
} // namespace Kernel
|