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Revision 35ff08be099b36d0be855040a296f985d25dfd0a authored by Michael Haggerty on 01 October 2014, 10:28:17 UTC, committed by Junio C Hamano on 01 October 2014, 20:45:12 UTC 
prepare_index(): declare return value to be (const char *)
 
Declare the return value to be const to make it clear that we aren't
giving callers permission to write over the string that it points at.
(The return value is the filename field of a struct lock_file, which
can be used by a signal handler at any time and therefore shouldn't be
tampered with.)

Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
1 parent 91f1f19
Raw File
pack-bitmap.h 
#ifndef PACK_BITMAP_H
#define PACK_BITMAP_H

#include "ewah/ewok.h"
#include "khash.h"
#include "pack-objects.h"

struct bitmap_disk_entry {
	uint32_t object_pos;
	uint8_t xor_offset;
	uint8_t flags;
} __attribute__((packed));

struct bitmap_disk_header {
	char magic[4];
	uint16_t version;
	uint16_t options;
	uint32_t entry_count;
	unsigned char checksum[20];
};

static const char BITMAP_IDX_SIGNATURE[] = {'B', 'I', 'T', 'M'};

#define NEEDS_BITMAP (1u<<22)

enum pack_bitmap_opts {
	BITMAP_OPT_FULL_DAG = 1,
	BITMAP_OPT_HASH_CACHE = 4,
};

enum pack_bitmap_flags {
	BITMAP_FLAG_REUSE = 0x1
};

typedef int (*show_reachable_fn)(
	const unsigned char *sha1,
	enum object_type type,
	int flags,
	uint32_t hash,
	struct packed_git *found_pack,
	off_t found_offset);

int prepare_bitmap_git(void);
void count_bitmap_commit_list(uint32_t *commits, uint32_t *trees, uint32_t *blobs, uint32_t *tags);
void traverse_bitmap_commit_list(show_reachable_fn show_reachable);
void test_bitmap_walk(struct rev_info *revs);
char *pack_bitmap_filename(struct packed_git *p);
int prepare_bitmap_walk(struct rev_info *revs);
int reuse_partial_packfile_from_bitmap(struct packed_git **packfile, uint32_t *entries, off_t *up_to);
int rebuild_existing_bitmaps(struct packing_data *mapping, khash_sha1 *reused_bitmaps, int show_progress);

void bitmap_writer_show_progress(int show);
void bitmap_writer_set_checksum(unsigned char *sha1);
void bitmap_writer_build_type_index(struct pack_idx_entry **index, uint32_t index_nr);
void bitmap_writer_reuse_bitmaps(struct packing_data *to_pack);
void bitmap_writer_select_commits(struct commit **indexed_commits,
		unsigned int indexed_commits_nr, int max_bitmaps);
void bitmap_writer_build(struct packing_data *to_pack);
void bitmap_writer_finish(struct pack_idx_entry **index,
			  uint32_t index_nr,
			  const char *filename,
			  uint16_t options);

#endif
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