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use super::*;
#[derive(
Debug, Clone, PartialOrd, Ord, Copy, Eq, PartialEq, Serialize, Deserialize,
)]
pub enum DiskPtr {
Inline(LogId),
Blob(LogId, BlobPointer),
}
impl DiskPtr {
pub(crate) fn new_inline(l: LogId) -> DiskPtr {
DiskPtr::Inline(l)
}
pub(crate) fn new_blob(lid: LogId, ptr: BlobPointer) -> DiskPtr {
DiskPtr::Blob(lid, ptr)
}
pub(crate) fn is_inline(&self) -> bool {
match self {
DiskPtr::Inline(_) => true,
DiskPtr::Blob(_, _) => false,
}
}
pub(crate) fn is_blob(&self) -> bool {
match self {
DiskPtr::Blob(_, _) => true,
DiskPtr::Inline(_) => false,
}
}
pub(crate) fn blob(&self) -> (LogId, BlobPointer) {
match self {
DiskPtr::Blob(lid, ptr) => (*lid, *ptr),
DiskPtr::Inline(_) => {
panic!("blob called on Internal disk pointer")
}
}
}
#[doc(hidden)]
pub fn lid(&self) -> LogId {
match self {
DiskPtr::Blob(lid, _) | DiskPtr::Inline(lid) => *lid,
}
}
}
impl std::fmt::Display for DiskPtr {
fn fmt(
&self,
f: &mut std::fmt::Formatter<'_>,
) -> std::result::Result<(), std::fmt::Error> {
write!(f, "{:?}", self)
}
}