int (*)(void **, size_t *, git_otype *, struct git_odb_backend *, const git_oid *)
read
int (*)(size_t *, git_otype *, struct git_odb_backend *, const git_oid *)
read_header
int (*)(git_oid *, struct git_odb_backend *, const void *, size_t, git_otype)
write
int (*)(struct git_odb_stream **, struct git_odb_backend *, size_t, git_otype)
writestream
int (*)(struct git_odb_stream **, struct git_odb_backend *, const git_oid *)
readstream
int (*)(struct git_odb_backend *, const git_oid *)
exists
void (*)(struct git_odb_backend *)
free