570df42610
In anticipation of combining the logic from the commit-graph and multi-pack-index file formats, create a new chunk-format API. Use a 'struct chunkfile' pointer to keep track of data that has been registered for writes. This struct is anonymous outside of chunk-format.c to ensure no user attempts to interfere with the data. The next change will use this API in commit-graph.c, but the general approach is: 1. initialize the chunkfile with init_chunkfile(f). 2. add chunks in the intended writing order with add_chunk(). 3. write any header information to the hashfile f. 4. write the chunkfile data using write_chunkfile(). 5. free the chunkfile struct using free_chunkfile(). Helped-by: Taylor Blau <me@ttaylorr.com> Helped-by: Junio C Hamano <gitster@pobox.com> Signed-off-by: Derrick Stolee <dstolee@microsoft.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
22 lines
553 B
C
22 lines
553 B
C
#ifndef CHUNK_FORMAT_H
|
|
#define CHUNK_FORMAT_H
|
|
|
|
#include "git-compat-util.h"
|
|
|
|
struct hashfile;
|
|
struct chunkfile;
|
|
|
|
#define CHUNK_TOC_ENTRY_SIZE (sizeof(uint32_t) + sizeof(uint64_t))
|
|
|
|
struct chunkfile *init_chunkfile(struct hashfile *f);
|
|
void free_chunkfile(struct chunkfile *cf);
|
|
int get_num_chunks(struct chunkfile *cf);
|
|
typedef int (*chunk_write_fn)(struct hashfile *f, void *data);
|
|
void add_chunk(struct chunkfile *cf,
|
|
uint32_t id,
|
|
size_t size,
|
|
chunk_write_fn fn);
|
|
int write_chunkfile(struct chunkfile *cf, void *data);
|
|
|
|
#endif
|