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refactoring a bit

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This commit is contained in:
JackDoan
2025-12-18 14:07:28 -06:00
parent 41c9a3b2eb
commit 726e282d0a
3 changed files with 38 additions and 38 deletions
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9
overlay/virtqueue/descriptor_table.go
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@@ -268,18 +268,13 @@ func (dt *DescriptorTable) createDescriptorForInputs() (uint16, error) {
return head, nil
}
func (dt *DescriptorTable) getDescriptorItem(head uint16) ([]byte, error) {
if int(head) > len(dt.descriptors) {
return nil, fmt.Errorf("%w: index out of range", ErrInvalidDescriptorChain)
}
func (dt *DescriptorTable) getDescriptorItem(head uint16) []byte {
desc := &dt.descriptors[head] //todo this is a pretty nasty hack with no checks
// The descriptor address points to memory not managed by Go, so this
// conversion is safe. See https://github.com/golang/go/issues/58625
//goland:noinspection GoVetUnsafePointer
bs := unsafe.Slice((*byte)(unsafe.Pointer(desc.address)), desc.length)
return bs, nil
return unsafe.Slice((*byte)(unsafe.Pointer(desc.address)), desc.length)
}
// checkUnusedDescriptorLength asserts that the length of an unused descriptor