Matthew Jackson
061f68594a
Library-wide review-and-fix pass: tightened AACS keydb/handshake/variant handling and trailing-partial-unit policy, corrected MPLS mark offset and added UDF allocation bounds, hardened the mux/codec framing and M2TS paths, guarded SCSI READ CAPACITY short transfers and unified error mapping, added overflow guards on untrusted disc input, and made prefetch shutdown deterministic. Release profile now builds with thin LTO + single codegen unit.
29 lines
1.2 KiB
Rust
29 lines
1.2 KiB
Rust
//! Windows: the canonical sequential-access hint is
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//! `FILE_FLAG_SEQUENTIAL_SCAN`, which must be passed to `CreateFile`
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//! at open time and cannot be set afterward via
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//! `SetFileInformationByHandle`. Since `FileSectorSource::open` uses a
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//! plain `File::open`, the hints in this module are no-op stubs.
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use std::fs::File;
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/// No-op stub. `FILE_FLAG_SEQUENTIAL_SCAN` can only be set at
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/// `CreateFile` open time, which the plain `File::open` path does not
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/// do, so there is no post-open hint to issue here.
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pub(super) fn hint_sequential(_file: &File, _len_bytes: u64) {
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tracing::debug!(
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target: "mux",
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"FileSectorSource hint_sequential: windows no-op stub"
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);
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}
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/// Windows page-cache eviction is not exposed via a posix_fadvise
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/// equivalent. The kernel does its own working-set management. No-op
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/// for now.
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pub(super) fn drop_window(_file: &File, _start: u64, _len: u64) {}
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/// Windows async-prefetch hint. With FILE_FLAG_SEQUENTIAL_SCAN at
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/// open the kernel already prefetches aggressively, so there's no
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/// per-range hint we'd add on top. No-op stub for parity with the
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/// posix platforms.
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pub(super) fn prefetch(_file: &File, _offset: u64, _len: u64) {}
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