#ifndef INCLUDE_pack_h__
#define INCLUDE_pack_h__
-#include <zlib.h>
+#include "common.h"
#include "git2/oid.h"
-#include "common.h"
+#include "array.h"
#include "map.h"
#include "mwindow.h"
#include "odb.h"
+#include "offmap.h"
#include "oidmap.h"
-#include "array.h"
+#include "zstream.h"
#define GIT_PACK_FILE_MODE 0444
} git_pack_cache_entry;
struct pack_chain_elem {
- git_off_t base_key;
- git_off_t offset;
+ off64_t base_key;
+ off64_t offset;
size_t size;
- git_otype type;
+ git_object_t type;
};
typedef git_array_t(struct pack_chain_elem) git_dependency_chain;
-#include "offmap.h"
-#include "oidmap.h"
-
#define GIT_PACK_CACHE_MEMORY_LIMIT 16 * 1024 * 1024
#define GIT_PACK_CACHE_SIZE_LIMIT 1024 * 1024 /* don't bother caching anything over 1MB */
git_pack_cache bases; /* delta base cache */
+ time_t last_freshen; /* last time the packfile was freshened */
+
/* something like ".git/objects/pack/xxxxx.pack" */
char pack_name[GIT_FLEX_ARRAY]; /* more */
};
+/**
+ * Return the position where an OID (or a prefix) would be inserted within the
+ * OID Lookup Table of an .idx file. This performs binary search between the lo
+ * and hi indices.
+ *
+ * The stride parameter is provided because .idx files version 1 store the OIDs
+ * interleaved with the 4-byte file offsets of the objects within the .pack
+ * file (stride = 24), whereas files with version 2 store them in a contiguous
+ * flat array (stride = 20).
+ */
+int git_pack__lookup_sha1(const void *oid_lookup_table, size_t stride, unsigned lo,
+ unsigned hi, const unsigned char *oid_prefix);
+
struct git_pack_entry {
- git_off_t offset;
+ off64_t offset;
git_oid sha1;
struct git_pack_file *p;
};
typedef struct git_packfile_stream {
- git_off_t curpos;
+ off64_t curpos;
int done;
- z_stream zstream;
+ git_zstream zstream;
struct git_pack_file *p;
git_mwindow *mw;
} git_packfile_stream;
-size_t git_packfile__object_header(unsigned char *hdr, size_t size, git_otype type);
+size_t git_packfile__object_header(unsigned char *hdr, size_t size, git_object_t type);
int git_packfile__name(char **out, const char *path);
int git_packfile_unpack_header(
size_t *size_p,
- git_otype *type_p,
+ git_object_t *type_p,
git_mwindow_file *mwf,
git_mwindow **w_curs,
- git_off_t *curpos);
+ off64_t *curpos);
int git_packfile_resolve_header(
size_t *size_p,
- git_otype *type_p,
+ git_object_t *type_p,
struct git_pack_file *p,
- git_off_t offset);
+ off64_t offset);
-int git_packfile_unpack(git_rawobj *obj, struct git_pack_file *p, git_off_t *obj_offset);
+int git_packfile_unpack(git_rawobj *obj, struct git_pack_file *p, off64_t *obj_offset);
-int git_packfile_stream_open(git_packfile_stream *obj, struct git_pack_file *p, git_off_t curpos);
+int git_packfile_stream_open(git_packfile_stream *obj, struct git_pack_file *p, off64_t curpos);
ssize_t git_packfile_stream_read(git_packfile_stream *obj, void *buffer, size_t len);
-void git_packfile_stream_free(git_packfile_stream *obj);
+void git_packfile_stream_dispose(git_packfile_stream *obj);
-git_off_t get_delta_base(struct git_pack_file *p, git_mwindow **w_curs,
- git_off_t *curpos, git_otype type,
- git_off_t delta_obj_offset);
+int get_delta_base(
+ off64_t *delta_base_out,
+ struct git_pack_file *p,
+ git_mwindow **w_curs,
+ off64_t *curpos,
+ git_object_t type,
+ off64_t delta_obj_offset);
+void git_packfile_close(struct git_pack_file *p, bool unlink_packfile);
void git_packfile_free(struct git_pack_file *p);
int git_packfile_alloc(struct git_pack_file **pack_out, const char *path);