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authorZach Hilman <zachhilman@gmail.com>2018-11-16 04:33:52 +0100
committerZach Hilman <zachhilman@gmail.com>2018-11-16 04:33:52 +0100
commit34cd56980f3014abdac7003092dd38684454cb13 (patch)
treeae534864bc42b44fe7bcced0e1cf094b1462d260
parentMerge pull request #1660 from Tinob/master (diff)
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-rw-r--r--src/core/file_sys/vfs_vector.h52
1 files changed, 52 insertions, 0 deletions
diff --git a/src/core/file_sys/vfs_vector.h b/src/core/file_sys/vfs_vector.h
index 3e3f790c3..7ed5123d2 100644
--- a/src/core/file_sys/vfs_vector.h
+++ b/src/core/file_sys/vfs_vector.h
@@ -8,6 +8,58 @@
namespace FileSys {
+// An implementation of VfsFile that is backed by a statically-sized array
+template <std::size_t size>
+class ArrayVfsFile : public VfsFile {
+public:
+ ArrayVfsFile(std::array<u8, size> data, std::string name = "", VirtualDir parent = nullptr)
+ : data(std::move(data)), name(std::move(name)), parent(std::move(parent)) {}
+
+ std::string GetName() const override {
+ return name;
+ }
+
+ std::size_t GetSize() const override {
+ return size;
+ }
+
+ bool Resize(std::size_t new_size) override {
+ return false;
+ }
+
+ std::shared_ptr<VfsDirectory> GetContainingDirectory() const override {
+ return parent;
+ }
+
+ bool IsWritable() const override {
+ return false;
+ }
+
+ bool IsReadable() const override {
+ return true;
+ }
+
+ std::size_t Read(u8* data_, std::size_t length, std::size_t offset) const override {
+ const auto read = std::min(length, size - offset);
+ std::memcpy(data_, data.data() + offset, read);
+ return read;
+ }
+
+ std::size_t Write(const u8* data, std::size_t length, std::size_t offset) override {
+ return 0;
+ }
+
+ bool Rename(std::string_view name) override {
+ this->name = name;
+ return true;
+ }
+
+private:
+ std::array<u8, size> data;
+ std::string name;
+ VirtualDir parent;
+};
+
// An implementation of VfsFile that is backed by a vector optionally supplied upon construction
class VectorVfsFile : public VfsFile {
public: