vfs_vector: Add VFS backend for std::array
Allows using constexpr/static const data with VFS.
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2c6efda235
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@ -8,6 +8,58 @@
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namespace FileSys {
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// An implementation of VfsFile that is backed by a statically-sized array
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template <std::size_t size>
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class ArrayVfsFile : public VfsFile {
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public:
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ArrayVfsFile(std::array<u8, size> data, std::string name = "", VirtualDir parent = nullptr)
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: data(std::move(data)), name(std::move(name)), parent(std::move(parent)) {}
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std::string GetName() const override {
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return name;
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}
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std::size_t GetSize() const override {
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return size;
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}
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bool Resize(std::size_t new_size) override {
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return false;
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}
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std::shared_ptr<VfsDirectory> GetContainingDirectory() const override {
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return parent;
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}
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bool IsWritable() const override {
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return false;
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}
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bool IsReadable() const override {
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return true;
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}
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std::size_t Read(u8* data_, std::size_t length, std::size_t offset) const override {
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const auto read = std::min(length, size - offset);
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std::memcpy(data_, data.data() + offset, read);
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return read;
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}
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std::size_t Write(const u8* data, std::size_t length, std::size_t offset) override {
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return 0;
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}
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bool Rename(std::string_view name) override {
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this->name = name;
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return true;
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}
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private:
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std::array<u8, size> data;
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std::string name;
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VirtualDir parent;
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};
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// An implementation of VfsFile that is backed by a vector optionally supplied upon construction
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class VectorVfsFile : public VfsFile {
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public:
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