forked from AbleOS/holey-bytes
Added some comments
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@ -47,6 +47,7 @@ impl BlockCopier {
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// Safety: Assuming uninit of array of MaybeUninit is sound
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// Safety: Assuming uninit of array of MaybeUninit is sound
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let mut buf = AlignedBuf(MaybeUninit::uninit().assume_init());
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let mut buf = AlignedBuf(MaybeUninit::uninit().assume_init());
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// We have at least one buffer size to copy
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if self.n_buffers != 0 {
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if self.n_buffers != 0 {
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if let Err(e) = act(
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if let Err(e) = act(
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memory,
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memory,
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@ -59,6 +60,9 @@ impl BlockCopier {
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return Poll::Ready(Err(e));
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return Poll::Ready(Err(e));
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}
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}
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// Bump source and destination address
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//
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// If we are over the address space, bail.
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match self.src.checked_add(BUF_SIZE as u64) {
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match self.src.checked_add(BUF_SIZE as u64) {
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Some(n) => self.src = n,
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Some(n) => self.src = n,
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None => return Poll::Ready(Err(BlkCopyError::OutOfBounds)),
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None => return Poll::Ready(Err(BlkCopyError::OutOfBounds)),
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