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Use off_t when we really mean a file offset.

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Not all platforms have declared 'unsigned long' to be a 64 bit value,
but we want to support a 64 bit packfile (or close enough anyway)
in the near future as some projects are getting large enough that
their packed size exceeds 4 GiB.

By using off_t, the POSIX type that is declared to mean an offset
within a file, we support whatever maximum file size the underlying
operating system will handle.  For most modern systems this is up
around 2^60 or higher.

Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
Signed-off-by: Junio C Hamano <junkio@cox.net>
This commit is contained in:
Shawn O. Pearce
2007-03-06 20:44:30 -05:00
committed by Junio C Hamano
parent 7cadf491c6
commit c4001d92be
6 changed files with 54 additions and 47 deletions
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10
cache.h
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@ -383,7 +383,7 @@ extern struct packed_git {
} *packed_git;
struct pack_entry {
unsigned int offset;
off_t offset;
unsigned char sha1[20];
struct packed_git *p;
};
@ -422,15 +422,15 @@ extern struct packed_git *find_sha1_pack(const unsigned char *sha1,
struct packed_git *packs);
extern void pack_report(void);
extern unsigned char* use_pack(struct packed_git *, struct pack_window **, unsigned long, unsigned int *);
extern unsigned char* use_pack(struct packed_git *, struct pack_window **, off_t, unsigned int *);
extern void unuse_pack(struct pack_window **);
extern struct packed_git *add_packed_git(char *, int, int);
extern uint32_t num_packed_objects(const struct packed_git *p);
extern int nth_packed_object_sha1(const struct packed_git *, uint32_t, unsigned char*);
extern unsigned long find_pack_entry_one(const unsigned char *, struct packed_git *);
extern void *unpack_entry(struct packed_git *, unsigned long, enum object_type *, unsigned long *);
extern off_t find_pack_entry_one(const unsigned char *, struct packed_git *);
extern void *unpack_entry(struct packed_git *, off_t, enum object_type *, unsigned long *);
extern unsigned long unpack_object_header_gently(const unsigned char *buf, unsigned long len, enum object_type *type, unsigned long *sizep);
extern const char *packed_object_info_detail(struct packed_git *, unsigned long, unsigned long *, unsigned long *, unsigned int *, unsigned char *);
extern const char *packed_object_info_detail(struct packed_git *, off_t, unsigned long *, unsigned long *, unsigned int *, unsigned char *);
/* Dumb servers support */
extern int update_server_info(int);