git@vger.kernel.org mailing list mirror (one of many)
 help / color / mirror / code / Atom feed
From: Vicent Marti <tanoku@gmail.com>
To: git@vger.kernel.org
Cc: Vicent Marti <tanoku@gmail.com>
Subject: [PATCH 14/16] sha1_file: implement `nth_packed_object_info`
Date: Tue, 25 Jun 2013 01:23:11 +0200	[thread overview]
Message-ID: <1372116193-32762-15-git-send-email-tanoku@gmail.com> (raw)
In-Reply-To: <1372116193-32762-1-git-send-email-tanoku@gmail.com>

A new helper function allows to efficiently query the size and real type
of an object in a packfile based on its position on the packfile index.

This is particularly useful when trying to parse all the information of
an index in memory.
---
 cache.h     |    1 +
 sha1_file.c |    6 ++++++
 2 files changed, 7 insertions(+)

diff --git a/cache.h b/cache.h
index bbe5e2a..26e4567 100644
--- a/cache.h
+++ b/cache.h
@@ -1104,6 +1104,7 @@ extern void clear_delta_base_cache(void);
 extern struct packed_git *add_packed_git(const char *, int, int);
 extern const unsigned char *nth_packed_object_sha1(struct packed_git *, uint32_t);
 extern off_t nth_packed_object_offset(const struct packed_git *, uint32_t);
+extern int nth_packed_object_info(struct packed_git *p, uint32_t n, unsigned long *sizep);
 extern int find_pack_entry_pos(const unsigned char *sha1, struct packed_git *p);
 extern off_t find_pack_entry_one(const unsigned char *, struct packed_git *);
 extern int is_pack_valid(struct packed_git *);
diff --git a/sha1_file.c b/sha1_file.c
index 018a847..fd5bd01 100644
--- a/sha1_file.c
+++ b/sha1_file.c
@@ -2223,6 +2223,12 @@ off_t nth_packed_object_offset(const struct packed_git *p, uint32_t n)
 	}
 }
 
+int nth_packed_object_info(struct packed_git *p, uint32_t n, unsigned long *sizep)
+{
+	off_t offset = nth_packed_object_offset(p, n);
+	return packed_object_info(p, offset, sizep, NULL);
+}
+
 int find_pack_entry_pos(const unsigned char *sha1, struct packed_git *p)
 {
 	const uint32_t *level1_ofs = p->index_data;
-- 
1.7.9.5

  parent reply	other threads:[~2013-06-24 23:24 UTC|newest]

Thread overview: 64+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-06-24 23:22 [PATCH 00/16] Speed up Counting Objects with bitmap data Vicent Marti
2013-06-24 23:22 ` [PATCH 01/16] list-objects: mark tree as unparsed when we free its buffer Vicent Marti
2013-06-24 23:22 ` [PATCH 02/16] sha1_file: refactor into `find_pack_object_pos` Vicent Marti
2013-06-25 13:59   ` Thomas Rast
2013-06-24 23:23 ` [PATCH 03/16] pack-objects: use a faster hash table Vicent Marti
2013-06-25 14:03   ` Thomas Rast
2013-06-26  2:14     ` Jeff King
2013-06-26  4:47       ` Jeff King
2013-06-25 17:58   ` Ramkumar Ramachandra
2013-06-25 22:48   ` Junio C Hamano
2013-06-25 23:09     ` Vicent Martí
2013-06-24 23:23 ` [PATCH 04/16] pack-objects: make `pack_name_hash` global Vicent Marti
2013-06-24 23:23 ` [PATCH 05/16] revision: allow setting custom limiter function Vicent Marti
2013-06-24 23:23 ` [PATCH 06/16] sha1_file: export `git_open_noatime` Vicent Marti
2013-06-24 23:23 ` [PATCH 07/16] compat: add endinanness helpers Vicent Marti
2013-06-25 13:08   ` Peter Krefting
2013-06-25 13:25     ` Vicent Martí
2013-06-27  5:56       ` Peter Krefting
2013-06-24 23:23 ` [PATCH 08/16] ewah: compressed bitmap implementation Vicent Marti
2013-06-25  1:10   ` Junio C Hamano
2013-06-25 22:51     ` Junio C Hamano
2013-06-25 15:38   ` Thomas Rast
2013-06-24 23:23 ` [PATCH 09/16] documentation: add documentation for the bitmap format Vicent Marti
2013-06-25  5:42   ` Shawn Pearce
2013-06-25 19:33     ` Vicent Martí
2013-06-25 21:17       ` Junio C Hamano
2013-06-25 22:08         ` Vicent Martí
2013-06-27  1:11           ` Shawn Pearce
2013-06-27  2:36             ` Vicent Martí
2013-06-27  2:45               ` Jeff King
2013-06-27 16:07                 ` Shawn Pearce
2013-06-27 17:17                   ` Jeff King
2013-07-01 18:47                   ` Colby Ranger
2013-07-01 19:13                     ` Shawn Pearce
2013-07-07  9:46                     ` Jeff King
2013-07-07 17:27                       ` Shawn Pearce
2013-06-26  5:11       ` Jeff King
2013-06-26 18:41         ` Colby Ranger
2013-06-26 22:33           ` Colby Ranger
2013-06-27  0:53             ` Colby Ranger
2013-06-27  1:32               ` Shawn Pearce
2013-06-27  1:29         ` Shawn Pearce
2013-06-25 15:58   ` Thomas Rast
2013-06-25 22:30     ` Vicent Martí
2013-06-26 23:12       ` Thomas Rast
2013-06-26 23:19         ` Thomas Rast
2013-06-24 23:23 ` [PATCH 10/16] pack-objects: use bitmaps when packing objects Vicent Marti
2013-06-25 12:48   ` Ramkumar Ramachandra
2013-06-25 15:58   ` Thomas Rast
2013-06-25 23:06   ` Junio C Hamano
2013-06-25 23:14     ` Vicent Martí
2013-06-24 23:23 ` [PATCH 11/16] rev-list: add bitmap mode to speed up lists Vicent Marti
2013-06-25 16:22   ` Thomas Rast
2013-06-26  1:45     ` Vicent Martí
2013-06-26 23:13       ` Thomas Rast
2013-06-26  5:22     ` Jeff King
2013-06-24 23:23 ` [PATCH 12/16] pack-objects: implement bitmap writing Vicent Marti
2013-06-24 23:23 ` [PATCH 13/16] repack: consider bitmaps when performing repacks Vicent Marti
2013-06-25 23:00   ` Junio C Hamano
2013-06-25 23:16     ` Vicent Martí
2013-06-24 23:23 ` Vicent Marti [this message]
2013-06-24 23:23 ` [PATCH 15/16] write-bitmap: implement new git command to write bitmaps Vicent Marti
2013-06-24 23:23 ` [PATCH 16/16] rev-list: Optimize --count using bitmaps too Vicent Marti
2013-06-25 16:05 ` [PATCH 00/16] Speed up Counting Objects with bitmap data Thomas Rast

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

  List information: http://vger.kernel.org/majordomo-info.html

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=1372116193-32762-15-git-send-email-tanoku@gmail.com \
    --to=tanoku@gmail.com \
    --cc=git@vger.kernel.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
Code repositories for project(s) associated with this public inbox

	https://80x24.org/mirrors/git.git

This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).