_block_server_c_rustc_static

Struct OffsetMap

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pub struct OffsetMap { /* private fields */ }
Expand description

Remaps the offset of block requests based on an internal map. TODO(https://fxbug.dev/402515764): For now, this just supports a single entry in the map, which is all that is required for GPT partitions. If we want to support this for FVM, we will need to support multiple entries, which requires changing the block server to support request splitting.

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impl OffsetMap

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pub fn new(mapping: BlockOffsetMapping) -> Self

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pub fn adjust_request(&self, dev_offset: u64, length: u64) -> Option<u64>

Adjusts the requested range, returning the new dev_offset. Returns false if the request would exceed the range known to OffsetMap.

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