nstool/lib/libnx/include/nx/MemoryPageEntry.h

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#pragma once
#include <string>
#include <fnd/types.h>
#include <nx/KernelCapability.h>
namespace nx
{
class MemoryPageEntry
{
public:
MemoryPageEntry();
MemoryPageEntry(const KernelCapability& kernel_cap);
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MemoryPageEntry(uint32_t page);
MemoryPageEntry(uint32_t page, bool flag);
// kernel capability
const KernelCapability& getKernelCapability() const;
void setKernelCapability(const KernelCapability& kernel_cap);
// variables
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uint32_t getPage() const;
void setPage(uint32_t page);
bool getFlag() const;
void setFlag(bool flag);
bool isMultiplePages() const;
void setMapMultiplePages(bool useFlag);
private:
const std::string kModuleName = "MEMORY_PAGE_ENTRY";
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static const uint32_t kPageBits = 24;
static const uint32_t kMaxPage = BIT(kPageBits) - 1;
KernelCapability mCap;
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uint32_t mPage;
bool mFlag;
bool mUseFlag;
inline void updateCapField()
{
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uint32_t field = 0;
field |= (uint32_t)(mPage & kMaxPage) << 0;
field |= (uint32_t)(mFlag) << kPageBits;
mCap.setField(field);
mCap.setType(mUseFlag ? KernelCapability::KC_MEMORY_MAP : KernelCapability::KC_IO_MEMORY_MAP);
}
inline void processCapField()
{
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uint32_t field = mCap.getField();
mPage = (field >> 0) & kMaxPage;
mFlag = (field >> kPageBits);
mUseFlag = mCap.getType() == KernelCapability::KC_MEMORY_MAP;
}
};
}