Extract FFI bindings into separate libublk-rs-sys crate#46
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Create a standalone libublk-rs-sys crate containing low-level FFI bindings to the Linux ublk kernel API. This allows users to handle ublk operations on their own io_uring instance instead of using libublk's thread-local ring. Changes: - Move build.rs and ublk_cmd.h to libublk-rs-sys/ - Create libublk-rs-sys with its own Cargo.toml and documentation - Update main libublk to depend on libublk-rs-sys via path dependency - Remove build-dependencies from main Cargo.toml - Update src/sys.rs to re-export from libublk-rs-sys - Update .gitignore to exclude build artifacts in subdirectories - Move ublk_auto_buf_reg helper functions to libublk-rs-sys with tests The ublk_sqe_addr_to_auto_buf_reg() and ublk_auto_buf_reg_to_sqe_addr() helper functions are now part of the libublk-rs-sys API with comprehensive documentation and unit tests. The main crate re-exports them for backward compatibility. The crates are managed separately (not using workspace) following the pattern of similar projects like devicemapper-rs. Resolves: #45 Signed-off-by: Ming Lei <tom.leiming@gmail.com>
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Create a standalone libublk-rs-sys crate containing low-level FFI bindings to the Linux ublk kernel API. This allows users to handle ublk operations on their own io_uring instance instead of using libublk's thread-local ring.
Changes:
The crates are managed separately (not using workspace) following the pattern of similar projects like devicemapper-rs.
Resolves: #45