From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on dcvr.yhbt.net X-Spam-Level: X-Spam-ASN: AS31976 209.132.180.0/23 X-Spam-Status: No, score=-3.2 required=3.0 tests=AWL,BAYES_00,RCVD_IN_DNSWL_HI, T_RP_MATCHES_RCVD shortcircuit=no autolearn=ham autolearn_force=no version=3.4.0 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by dcvr.yhbt.net (Postfix) with ESMTP id 9847420401 for ; Thu, 15 Jun 2017 14:48:49 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752712AbdFOOsm (ORCPT ); Thu, 15 Jun 2017 10:48:42 -0400 Received: from alum-mailsec-scanner-4.mit.edu ([18.7.68.15]:51707 "EHLO alum-mailsec-scanner-4.mit.edu" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752707AbdFOOsi (ORCPT ); Thu, 15 Jun 2017 10:48:38 -0400 X-AuditID: 1207440f-33bff7000000102d-c5-59429e3f608d Received: from outgoing-alum.mit.edu (OUTGOING-ALUM.MIT.EDU [18.7.68.33]) (using TLS with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client did not present a certificate) by alum-mailsec-scanner-4.mit.edu (Symantec Messaging Gateway) with SMTP id A1.06.04141.F3E92495; Thu, 15 Jun 2017 10:48:32 -0400 (EDT) Received: from bagpipes.fritz.box (p57BCCC0A.dip0.t-ipconnect.de [87.188.204.10]) (authenticated bits=0) (User authenticated as mhagger@ALUM.MIT.EDU) by outgoing-alum.mit.edu (8.13.8/8.12.4) with ESMTP id v5FElbRH014537 (version=TLSv1/SSLv3 cipher=AES128-SHA bits=128 verify=NOT); Thu, 15 Jun 2017 10:48:30 -0400 From: Michael Haggerty To: Junio C Hamano Cc: =?UTF-8?q?Nguy=E1=BB=85n=20Th=C3=A1i=20Ng=E1=BB=8Dc=20Duy?= , Stefan Beller , Jeff King , =?UTF-8?q?=C3=86var=20Arnfj=C3=B6r=C3=B0=20Bjarmason?= , David Turner , Brandon Williams , git@vger.kernel.org, Michael Haggerty Subject: [PATCH 23/28] packed_refs_lock(): report errors via a `struct strbuf *err` Date: Thu, 15 Jun 2017 16:47:28 +0200 Message-Id: <64020d0dc582f44e5f83c36db0afdfdfdf7ea1b6.1497534157.git.mhagger@alum.mit.edu> X-Mailer: git-send-email 2.11.0 In-Reply-To: References: X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFrrEIsWRmVeSWpSXmKPExsUixO6iqOswzynS4NFvJou1z+4wWTxff4Ld outKN5NFQ+8VZovbK+YzWyx5+JrZonvKW0aLHy09zBabN7ezOHB6/H3/gclj56y77B4LNpV6 dLUfYfN41ruH0ePiJWWPz5vkAtijuGxSUnMyy1KL9O0SuDKmPZnEVjBNpuLx67vMDYwzxLsY OTkkBEwkbk8+wtLFyMUhJLCDSaJhZw87hHOSSeLflymsIFVsAroSi3qamUBsEQE1iYlth8A6 mAUmMUu8vbYQLCEsECxx/8xVNhCbRUBVomV7LzOIzSsQJXHl7ltmiHXyErvaLoIN5RSwkJj9 ZR1QnANom7nEseUaExh5FjAyrGKUS8wpzdXNTczMKU5N1i1OTszLSy3SNdHLzSzRS00p3cQI CTr+HYxd62UOMQpwMCrx8Co0OEUKsSaWFVfmHmKU5GBSEuXllwMK8SXlp1RmJBZnxBeV5qQW H2KU4GBWEuGdOgcox5uSWFmVWpQPk5LmYFES51Vfou4nJJCeWJKanZpakFoEk5Xh4FCS4N0G 0ihYlJqeWpGWmVOCkGbi4AQZzgM0/C/Y8OKCxNzizHSI/ClGRSlxXg+QhABIIqM0D64XlhRe MYoDvSLM+wWkigeYUOC6XwENZgIaHHTBAWRwSSJCSqqBUXrbcqnHK+Yekmz91lru0vpyo+PS u2eizfyuZxz8y7T2+Zc6nT/WHB+zzH8WVf5r5Foc9tnBWklr/8YlT/i1y/f8TrjWesbKzPCr eovnskQXxgadx8Ufo28u2yYpfn3l15JPz5k6hLZpCqwT8X6hZmrxY0Mb99VDzr8c7Bftrc8y 8f53rYlLQImlOCPRUIu5qDgRAO5JiVvlAgAA Sender: git-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: git@vger.kernel.org That way the callers don't have to come up with error messages themselves. Signed-off-by: Michael Haggerty --- refs/files-backend.c | 6 ++---- refs/packed-backend.c | 17 +++++++++++------ refs/packed-backend.h | 6 +++--- 3 files changed, 16 insertions(+), 13 deletions(-) diff --git a/refs/files-backend.c b/refs/files-backend.c index 3fc2254e33..802ed9e2e9 100644 --- a/refs/files-backend.c +++ b/refs/files-backend.c @@ -1084,7 +1084,7 @@ static int files_pack_refs(struct ref_store *ref_store, unsigned int flags) struct ref_to_prune *refs_to_prune = NULL; struct strbuf err = STRBUF_INIT; - packed_refs_lock(refs->packed_ref_store, LOCK_DIE_ON_ERROR); + packed_refs_lock(refs->packed_ref_store, LOCK_DIE_ON_ERROR, &err); iter = cache_ref_iterator_begin(get_loose_ref_cache(refs), NULL, 0); while ((ok = ref_iterator_advance(iter)) == ITER_OK) { @@ -2667,9 +2667,7 @@ static int files_initial_transaction_commit(struct ref_store *ref_store, } } - if (packed_refs_lock(refs->packed_ref_store, 0)) { - strbuf_addf(err, "unable to lock packed-refs file: %s", - strerror(errno)); + if (packed_refs_lock(refs->packed_ref_store, 0, err)) { ret = TRANSACTION_GENERIC_ERROR; goto cleanup; } diff --git a/refs/packed-backend.c b/refs/packed-backend.c index eb9da04576..24451343b8 100644 --- a/refs/packed-backend.c +++ b/refs/packed-backend.c @@ -515,7 +515,7 @@ static int write_packed_entry(FILE *fh, const char *refname, return 0; } -int packed_refs_lock(struct ref_store *ref_store, int flags) +int packed_refs_lock(struct ref_store *ref_store, int flags, struct strbuf *err) { struct packed_ref_store *refs = packed_downcast(ref_store, REF_STORE_WRITE | REF_STORE_MAIN, @@ -537,9 +537,15 @@ int packed_refs_lock(struct ref_store *ref_store, int flags) if (hold_lock_file_for_update_timeout( &refs->lock, refs->path, - flags, timeout_value) < 0 || - close_lock_file(&refs->lock)) + flags, timeout_value) < 0) { + unable_to_lock_message(refs->path, errno, err); + return -1; + } + + if (close_lock_file(&refs->lock)) { + strbuf_addf(err, "unable to close %s: %s", refs->path, strerror(errno)); return -1; + } /* * Now that we hold the `packed-refs` lock, make sure that our @@ -698,10 +704,9 @@ int repack_without_refs(struct ref_store *ref_store, if (!needs_repacking) return 0; /* no refname exists in packed refs */ - if (packed_refs_lock(&refs->base, 0)) { - unable_to_lock_message(refs->path, errno, err); + if (packed_refs_lock(&refs->base, 0, err)) return -1; - } + packed = get_packed_refs(refs); /* Remove refnames from the cache */ diff --git a/refs/packed-backend.h b/refs/packed-backend.h index dbc00d3396..210e3f35ce 100644 --- a/refs/packed-backend.h +++ b/refs/packed-backend.h @@ -6,10 +6,10 @@ struct ref_store *packed_ref_store_create(const char *path, /* * Lock the packed-refs file for writing. Flags is passed to - * hold_lock_file_for_update(). Return 0 on success. On errors, set - * errno appropriately and return a nonzero value. + * hold_lock_file_for_update(). Return 0 on success. On errors, write + * an error message to `err` and return a nonzero value. */ -int packed_refs_lock(struct ref_store *ref_store, int flags); +int packed_refs_lock(struct ref_store *ref_store, int flags, struct strbuf *err); void add_packed_ref(struct ref_store *ref_store, const char *refname, const struct object_id *oid); -- 2.11.0