vfs: Add and rewite VfsRawCopy functions
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@ -463,13 +463,41 @@ bool DeepEquals(const VirtualFile& file1, const VirtualFile& file2, std::size_t
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return true;
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return true;
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}
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}
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bool VfsRawCopy(VirtualFile src, VirtualFile dest) {
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bool VfsRawCopy(const VirtualFile& src, const VirtualFile& dest, size_t block_size) {
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if (src == nullptr || dest == nullptr)
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if (src == nullptr || dest == nullptr || !src->IsReadable() || !dest->IsWritable())
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return false;
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return false;
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if (!dest->Resize(src->GetSize()))
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if (!dest->Resize(src->GetSize()))
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return false;
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return false;
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std::vector<u8> data = src->ReadAllBytes();
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return dest->WriteBytes(data, 0) == data.size();
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std::vector<u8> temp(std::min(block_size, src->GetSize()));
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for (size_t i = 0; i < src->GetSize(); i += block_size) {
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const auto read = std::min(block_size, src->GetSize() - i);
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const auto block = src->Read(temp.data(), read, i);
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if (dest->Write(temp.data(), read, i) != read)
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return false;
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}
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return true;
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}
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bool VfsRawCopyD(const VirtualDir& src, const VirtualDir& dest, size_t block_size) {
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if (src == nullptr || dest == nullptr || !src->IsReadable() || !dest->IsWritable())
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return false;
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for (const auto& file : src->GetFiles()) {
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const auto out = dest->CreateFile(file->GetName());
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if (!VfsRawCopy(file, out, block_size))
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return false;
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}
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for (const auto& dir : src->GetSubdirectories()) {
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const auto out = dest->CreateSubdirectory(dir->GetName());
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if (!VfsRawCopyD(dir, out, block_size))
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return false;
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}
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return true;
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}
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}
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VirtualDir GetOrCreateDirectoryRelative(const VirtualDir& rel, std::string_view path) {
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VirtualDir GetOrCreateDirectoryRelative(const VirtualDir& rel, std::string_view path) {
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@ -316,12 +316,14 @@ public:
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};
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};
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// Compare the two files, byte-for-byte, in increments specificed by block_size
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// Compare the two files, byte-for-byte, in increments specificed by block_size
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bool DeepEquals(const VirtualFile& file1, const VirtualFile& file2, std::size_t block_size = 0x200);
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bool DeepEquals(const VirtualFile& file1, const VirtualFile& file2, size_t block_size = 0x1000);
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// A method that copies the raw data between two different implementations of VirtualFile. If you
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// A method that copies the raw data between two different implementations of VirtualFile. If you
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// are using the same implementation, it is probably better to use the Copy method in the parent
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// are using the same implementation, it is probably better to use the Copy method in the parent
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// directory of src/dest.
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// directory of src/dest.
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bool VfsRawCopy(VirtualFile src, VirtualFile dest);
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bool VfsRawCopy(const VirtualFile& src, const VirtualFile& dest, size_t block_size = 0x1000);
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bool VfsRawCopyD(const VirtualDir& src, const VirtualDir& dest, size_t block_size = 0x1000);
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// Checks if the directory at path relative to rel exists. If it does, returns that. If it does not
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// Checks if the directory at path relative to rel exists. If it does, returns that. If it does not
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// it attempts to create it and returns the new dir or nullptr on failure.
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// it attempts to create it and returns the new dir or nullptr on failure.
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