From mboxrd@z Thu Jan 1 00:00:00 1970 From: Christian Couder Subject: [RFC/PATCH 4/7] sha1_file: add a "read_sha1_file_repl" function Date: Mon, 12 Jan 2009 18:51:00 +0100 Message-ID: <20090112185100.67c4a40e.chriscool@tuxfamily.org> Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Cc: git@vger.kernel.org To: Junio C Hamano X-From: git-owner@vger.kernel.org Mon Jan 12 18:52:00 2009 Return-path: Envelope-to: gcvg-git-2@gmane.org Received: from vger.kernel.org ([209.132.176.167]) by lo.gmane.org with esmtp (Exim 4.50) id 1LMQx1-0002OG-Cx for gcvg-git-2@gmane.org; Mon, 12 Jan 2009 18:51:47 +0100 Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751571AbZALRuY (ORCPT ); Mon, 12 Jan 2009 12:50:24 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751471AbZALRuX (ORCPT ); Mon, 12 Jan 2009 12:50:23 -0500 Received: from smtp5-g21.free.fr ([212.27.42.5]:49909 "EHLO smtp5-g21.free.fr" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750952AbZALRuX (ORCPT ); Mon, 12 Jan 2009 12:50:23 -0500 Received: from smtp5-g21.free.fr (localhost [127.0.0.1]) by smtp5-g21.free.fr (Postfix) with ESMTP id 3A8D7D488D4; Mon, 12 Jan 2009 18:50:14 +0100 (CET) Received: from localhost.boubyland (gre92-7-82-243-130-161.fbx.proxad.net [82.243.130.161]) by smtp5-g21.free.fr (Postfix) with SMTP id 38939D48FDD; Mon, 12 Jan 2009 18:50:12 +0100 (CET) X-Mailer: Sylpheed 2.5.0 (GTK+ 2.12.11; i486-pc-linux-gnu) Sender: git-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: git@vger.kernel.org Archived-At: This new function will replace "read_sha1_file". This latter function becoming just a stub to call the former will a NULL "replacement" argument. This new function is needed because sometimes we need to use the replacement sha1. Signed-off-by: Christian Couder --- cache.h | 6 +++++- sha1_file.c | 9 +++++++-- 2 files changed, 12 insertions(+), 3 deletions(-) diff --git a/cache.h b/cache.h index 8e1af26..1b34381 100644 --- a/cache.h +++ b/cache.h @@ -625,7 +625,11 @@ int longest_ancestor_length(const char *path, const char *prefix_list); /* Read and unpack a sha1 file into memory, write memory to a sha1 file */ extern int sha1_object_info(const unsigned char *, unsigned long *); -extern void * read_sha1_file(const unsigned char *sha1, enum object_type *type, unsigned long *size); +extern void *read_sha1_file_repl(const unsigned char *sha1, enum object_type *type, unsigned long *size, const unsigned char **replacement); +static inline void *read_sha1_file(const unsigned char *sha1, enum object_type *type, unsigned long *size) +{ + return read_sha1_file_repl(sha1, type, size, NULL); +} extern int hash_sha1_file(const void *buf, unsigned long len, const char *type, unsigned char *sha1); extern int write_sha1_file(void *buf, unsigned long len, const char *type, unsigned char *return_sha1); extern int pretend_sha1_file(void *, unsigned long, enum object_type, unsigned char *); diff --git a/sha1_file.c b/sha1_file.c index 4f2fd10..ea89ce5 100644 --- a/sha1_file.c +++ b/sha1_file.c @@ -2160,8 +2160,10 @@ static void *read_object(const unsigned char *sha1, enum object_type *type, return read_packed_sha1(sha1, type, size); } -void *read_sha1_file(const unsigned char *sha1, enum object_type *type, - unsigned long *size) +void *read_sha1_file_repl(const unsigned char *sha1, + enum object_type *type, + unsigned long *size, + const unsigned char **replacement) { const unsigned char *repl = lookup_replace_object(sha1); void *data = read_object(repl, type, size); @@ -2175,6 +2177,9 @@ void *read_sha1_file(const unsigned char *sha1, enum object_type *type, if (!data && (has_loose_object(repl) || has_packed_and_bad(repl))) die("object %s is corrupted", sha1_to_hex(repl)); + if (replacement) + *replacement = repl; + return data; } -- 1.6.1.83.g16e5