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use std::marker;
use crate::util::Binding;
use crate::{raw, Buf, Error, Odb, Repository};
/// A structure to represent a mempack backend for the object database. The
/// Mempack is bound to the Odb that it was created from, and cannot outlive
/// that Odb.
pub struct Mempack<'odb> {
raw: *mut raw::git_odb_backend,
_marker: marker::PhantomData<&'odb Odb<'odb>>,
}
impl<'odb> Binding for Mempack<'odb> {
type Raw = *mut raw::git_odb_backend;
unsafe fn from_raw(raw: *mut raw::git_odb_backend) -> Mempack<'odb> {
Mempack {
raw,
_marker: marker::PhantomData,
}
}
fn raw(&self) -> *mut raw::git_odb_backend {
self.raw
}
}
// We don't need to implement `Drop` for Mempack because it is owned by the
// odb to which it is attached, and that will take care of freeing the mempack
// and associated memory.
impl<'odb> Mempack<'odb> {
/// Dumps the contents of the mempack into the provided buffer.
pub fn dump(&self, repo: &Repository, buf: &mut Buf) -> Result<(), Error> {
unsafe {
try_call!(raw::git_mempack_dump(buf.raw(), repo.raw(), self.raw));
}
Ok(())
}
/// Clears all data in the mempack.
pub fn reset(&self) -> Result<(), Error> {
unsafe {
try_call!(raw::git_mempack_reset(self.raw));
}
Ok(())
}
}
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