From patchwork Fri Jun 25 16:02:23 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: ZheNing Hu X-Patchwork-Id: 12345575 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-12.7 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id D2181C49EA7 for ; Fri, 25 Jun 2021 16:02:56 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id B4D6961976 for ; Fri, 25 Jun 2021 16:02:56 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230177AbhFYQFQ (ORCPT ); Fri, 25 Jun 2021 12:05:16 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:50474 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230091AbhFYQE6 (ORCPT ); Fri, 25 Jun 2021 12:04:58 -0400 Received: from mail-wr1-x42d.google.com (mail-wr1-x42d.google.com [IPv6:2a00:1450:4864:20::42d]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 53884C061766 for ; Fri, 25 Jun 2021 09:02:37 -0700 (PDT) Received: by mail-wr1-x42d.google.com with SMTP id b3so11126520wrm.6 for ; Fri, 25 Jun 2021 09:02:37 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=message-id:in-reply-to:references:from:date:subject:fcc :content-transfer-encoding:mime-version:to:cc; bh=+bsFc6e3DqMp3rf/hPSj63ldu2+jiHin07ZYcR5fSM4=; b=GcazcYlxL8Z7B/kN73dn3MW0kgOkxj+sl6DKeOH6UAWS2mFkdmSTg1D/Ba6vVAyVMa ipy8MZ5hKUAs3R6MHsOyqIL1wz83Y7p4Mug0ki67H8gFx/lVzzA2dETzeJwngDztIxvC tvl2Mg7I3O+sNeSOfn/OKmg9QOy0zMaXeZSVFA5nxIRZ8U2Nixj5tHmAtn2U9BIspGLB Xm4xAllfTRucPvH2ezbgVQeACOD5AZt+QDNrOlaCiRB1xvU+bPyMzYUcRrj7/e9Jpprp 5DW/lB7CqFNqjmDxkw3IDtAjdG32avSpShAT1X+0YKODKluvKRpxFKwFpzSMmib6MHiQ h7Kg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:message-id:in-reply-to:references:from:date :subject:fcc:content-transfer-encoding:mime-version:to:cc; bh=+bsFc6e3DqMp3rf/hPSj63ldu2+jiHin07ZYcR5fSM4=; b=dZLsr65KC1viBnABNRYR/252A/aACfTC7t6fJFTyK/Fon8UXdqjC9M44zRyBQXTUJ3 xcmFlm52uR3mQkGXiA/GQF7Rtzqlo6/zHWZ4eWbrh8foK619Ct8FNpMfwhY50Sj82kfV FjF8hFft10Yth6VF2Xv0dyY7DsnjtJg6gEGTFBkA48pM3TWujLX+oxSGYIrYZMGTNxm3 vYWtvIKtHfNv8csdPDnl0FJnKpXs8Wg6PkzlQ2YDkn6q7Iym9mQ7w5UwkRr6Snc3fcTl 7dEW1fuMngF5qub5Dd+TEurorbJIy2pqUTMbFdKUWwQycVCSf8J8r7t2hxZOKdP6srn4 /WwA== X-Gm-Message-State: AOAM533YQi4LRChk6zUgTT+RewNTw/ZzZVTurWLL5nzqpgAc93K4R5d6 VcV8eWoWJ0oeHdrx9oc9RagjpdsoHcA= X-Google-Smtp-Source: ABdhPJy42mqtiQ60MY/eTl5jpqhnVLLcPwZvf0Uyxb+QT0le2avfEpSnhZBjbTvh71KLIdmhTc+XzQ== X-Received: by 2002:a5d:6d8b:: with SMTP id l11mr11786633wrs.21.1624636956033; Fri, 25 Jun 2021 09:02:36 -0700 (PDT) Received: from [127.0.0.1] ([13.74.141.28]) by smtp.gmail.com with ESMTPSA id o203sm6786252wmo.36.2021.06.25.09.02.35 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 25 Jun 2021 09:02:35 -0700 (PDT) Message-Id: <69eef47065d27cc997a26c853691534c5d84df6d.1624636945.git.gitgitgadget@gmail.com> In-Reply-To: References: Date: Fri, 25 Jun 2021 16:02:23 +0000 Subject: [PATCH v5 13/15] [GSOC] cat-file: reuse err buf in batch_object_write() Fcc: Sent MIME-Version: 1.0 To: git@vger.kernel.org Cc: Junio C Hamano , Christian Couder , Hariom Verma , Bagas Sanjaya , Jeff King , =?utf-8?b?w4Z2YXIgQXJuZmrDtnLDsA==?= Bjarmason , ZheNing Hu , ZheNing Hu Precedence: bulk List-ID: X-Mailing-List: git@vger.kernel.org From: ZheNing Hu From: ZheNing Hu Reuse the `err` buffer in batch_object_write(), as the buffer `scratch` does. This will reduce the overhead of multiple allocations of memory of the err buffer. Mentored-by: Christian Couder Mentored-by: Hariom Verma Signed-off-by: ZheNing Hu --- builtin/cat-file.c | 22 ++++++++++++++-------- 1 file changed, 14 insertions(+), 8 deletions(-) diff --git a/builtin/cat-file.c b/builtin/cat-file.c index 0e7ad038e5f..27403326e7a 100644 --- a/builtin/cat-file.c +++ b/builtin/cat-file.c @@ -212,35 +212,36 @@ static void batch_write(struct batch_options *opt, const void *data, int len) static void batch_object_write(const char *obj_name, struct strbuf *scratch, + struct strbuf *err, struct batch_options *opt, struct expand_data *data) { int ret = 0; - struct strbuf err = STRBUF_INIT; struct ref_array_item item = { data->oid, data->rest }; strbuf_reset(scratch); + strbuf_reset(err); - ret = format_ref_array_item(&item, &opt->format, scratch, &err); + ret = format_ref_array_item(&item, &opt->format, scratch, err); if (ret < 0) { - die("%s\n", err.buf); + die("%s\n", err->buf); } if (ret) { /* ret > 0 means when the object corresponding to oid * cannot be found in format_ref_array_item(), we only print * the error message. */ - printf("%s\n", err.buf); + printf("%s\n", err->buf); fflush(stdout); } else { strbuf_addch(scratch, '\n'); batch_write(opt, scratch->buf, scratch->len); } free_ref_array_item_value(&item); - strbuf_release(&err); } static void batch_one_object(const char *obj_name, struct strbuf *scratch, + struct strbuf *err, struct batch_options *opt, struct expand_data *data) { @@ -294,7 +295,7 @@ static void batch_one_object(const char *obj_name, return; } - batch_object_write(obj_name, scratch, opt, data); + batch_object_write(obj_name, scratch, err, opt, data); } struct object_cb_data { @@ -302,13 +303,14 @@ struct object_cb_data { struct expand_data *expand; struct oidset *seen; struct strbuf *scratch; + struct strbuf *err; }; static int batch_object_cb(const struct object_id *oid, void *vdata) { struct object_cb_data *data = vdata; oidcpy(&data->expand->oid, oid); - batch_object_write(NULL, data->scratch, data->opt, data->expand); + batch_object_write(NULL, data->scratch, data->err, data->opt, data->expand); return 0; } @@ -364,6 +366,7 @@ static int batch_objects(struct batch_options *batch, const struct option *optio { struct strbuf input = STRBUF_INIT; struct strbuf output = STRBUF_INIT; + struct strbuf err = STRBUF_INIT; struct strbuf format = STRBUF_INIT; struct expand_data data; int save_warning; @@ -392,6 +395,7 @@ static int batch_objects(struct batch_options *batch, const struct option *optio cb.opt = batch; cb.expand = &data; cb.scratch = &output; + cb.err = &err; if (batch->unordered) { struct oidset seen = OIDSET_INIT; @@ -416,6 +420,7 @@ static int batch_objects(struct batch_options *batch, const struct option *optio strbuf_release(&format); strbuf_release(&output); + strbuf_release(&err); return 0; } @@ -444,12 +449,13 @@ static int batch_objects(struct batch_options *batch, const struct option *optio data.rest = p; } - batch_one_object(input.buf, &output, batch, &data); + batch_one_object(input.buf, &output, &err, batch, &data); } strbuf_release(&format); strbuf_release(&input); strbuf_release(&output); + strbuf_release(&err); warn_on_object_refname_ambiguity = save_warning; return retval; }