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From: Michael Haggerty <mhagger@alum.mit.edu>
To: Junio C Hamano <gitster@pobox.com>
Cc: Kim Gybels <kgybels@infogroep.be>,
	Johannes Schindelin <johannes.schindelin@gmx.de>,
	Jeff King <peff@peff.net>,
	git@vger.kernel.org, Michael Haggerty <mhagger@alum.mit.edu>
Subject: [PATCH 2/6] create_snapshot(): use `xmemdupz()` rather than a strbuf
Date: Wed, 24 Jan 2018 12:14:12 +0100	[thread overview]
Message-ID: <612a0b909d1f73bb706e9c44a6e1d737f3a2bf95.1516791909.git.mhagger@alum.mit.edu> (raw)
In-Reply-To: <cea5e366-dc95-6f41-6373-f8bbef103561@alum.mit.edu>
In-Reply-To: <cover.1516791909.git.mhagger@alum.mit.edu>

It's lighter weight.

Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu>
---
 refs/packed-backend.c | 9 ++++-----
 1 file changed, 4 insertions(+), 5 deletions(-)

diff --git a/refs/packed-backend.c b/refs/packed-backend.c
index b872267f02..08698de6ea 100644
--- a/refs/packed-backend.c
+++ b/refs/packed-backend.c
@@ -620,8 +620,7 @@ static struct snapshot *create_snapshot(struct packed_ref_store *refs)
 
 	/* If the file has a header line, process it: */
 	if (snapshot->buf < snapshot->eof && *snapshot->buf == '#') {
-		struct strbuf tmp = STRBUF_INIT;
-		char *p, *eol;
+		char *tmp, *p, *eol;
 		struct string_list traits = STRING_LIST_INIT_NODUP;
 
 		eol = memchr(snapshot->buf, '\n',
@@ -631,9 +630,9 @@ static struct snapshot *create_snapshot(struct packed_ref_store *refs)
 					      snapshot->buf,
 					      snapshot->eof - snapshot->buf);
 
-		strbuf_add(&tmp, snapshot->buf, eol - snapshot->buf);
+		tmp = xmemdupz(snapshot->buf, eol - snapshot->buf);
 
-		if (!skip_prefix(tmp.buf, "# pack-refs with:", (const char **)&p))
+		if (!skip_prefix(tmp, "# pack-refs with:", (const char **)&p))
 			die_invalid_line(refs->path,
 					 snapshot->buf,
 					 snapshot->eof - snapshot->buf);
@@ -653,7 +652,7 @@ static struct snapshot *create_snapshot(struct packed_ref_store *refs)
 		snapshot->start = eol + 1;
 
 		string_list_clear(&traits, 0);
-		strbuf_release(&tmp);
+		free(tmp);
 	}
 
 	verify_buffer_safe(snapshot);
-- 
2.14.2


  parent reply	other threads:[~2018-01-24 11:14 UTC|newest]

Thread overview: 33+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-01-13 16:11 [PATCH] packed_ref_cache: don't use mmap() for small files Kim Gybels
2018-01-13 18:56 ` Johannes Schindelin
2018-01-14 19:14 ` [PATCH v2] " Kim Gybels
2018-01-15 12:17   ` [PATCH 0/3] Supplements to "packed_ref_cache: don't use mmap() for small files" Michael Haggerty
2018-01-15 12:17     ` [PATCH 1/3] SQUASH? Mention that `snapshot::buf` can be NULL for empty files Michael Haggerty
2018-01-15 12:17     ` [PATCH 2/3] create_snapshot(): exit early if the file was empty Michael Haggerty
2018-01-15 12:17     ` [PATCH 3/3] find_reference_location(): don't invoke if `snapshot->buf` is NULL Michael Haggerty
2018-01-17 20:23     ` [PATCH 0/3] Supplements to "packed_ref_cache: don't use mmap() for small files" Johannes Schindelin
2018-01-17 21:52     ` Junio C Hamano
2018-01-15 21:15 ` [PATCH] packed_ref_cache: don't use mmap() for small files Jeff King
2018-01-15 23:37   ` Kim Gybels
2018-01-15 23:52     ` Jeff King
2018-01-16 19:38       ` [PATCH v3] " Kim Gybels
2018-01-17 22:09         ` Jeff King
2018-01-21  4:41           ` Michael Haggerty
2018-01-22 19:31             ` Junio C Hamano
2018-01-24 11:05               ` Michael Haggerty
2018-01-24 11:14                 ` [PATCH 0/6] Yet another approach to handling empty snapshots Michael Haggerty
2018-01-24 11:14                   ` [PATCH 1/6] struct snapshot: store `start` rather than `header_len` Michael Haggerty
2018-01-24 20:36                     ` Jeff King
2018-01-24 11:14                   ` Michael Haggerty [this message]
2018-01-24 11:14                   ` [PATCH 3/6] find_reference_location(): make function safe for empty snapshots Michael Haggerty
2018-01-24 20:27                     ` Jeff King
2018-01-24 21:11                       ` Junio C Hamano
2018-01-24 21:34                         ` Jeff King
2018-01-24 11:14                   ` [PATCH 4/6] packed_ref_iterator_begin(): make optimization more general Michael Haggerty
2018-01-24 20:32                     ` Jeff King
2018-01-24 11:14                   ` [PATCH 5/6] load_contents(): don't try to mmap an empty file Michael Haggerty
2018-01-24 11:14                   ` [PATCH 6/6] packed_ref_cache: don't use mmap() for small files Michael Haggerty
2018-01-24 20:38                   ` [PATCH 0/6] Yet another approach to handling empty snapshots Jeff King
2018-01-24 20:54                   ` Junio C Hamano
2018-02-15 16:54                   ` Johannes Schindelin
2018-01-24 18:05                 ` [PATCH v3] packed_ref_cache: don't use mmap() for small files Junio C Hamano

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