From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.2 (2018-09-13) on dcvr.yhbt.net X-Spam-Level: X-Spam-ASN: AS3215 2.6.0.0/16 X-Spam-Status: No, score=-3.4 required=3.0 tests=AWL,BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE, SPF_PASS shortcircuit=no autolearn=ham autolearn_force=no version=3.4.2 Received: from out1.vger.email (out1.vger.email [IPv6:2620:137:e000::1:20]) by dcvr.yhbt.net (Postfix) with ESMTP id 382AD1F403 for ; Wed, 12 Oct 2022 21:04:57 +0000 (UTC) Authentication-Results: dcvr.yhbt.net; dkim=pass (2048-bit key; unprotected) header.d=gmail.com header.i=@gmail.com header.b="WvRsELn2"; dkim-atps=neutral Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229714AbiJLVD3 (ORCPT ); Wed, 12 Oct 2022 17:03:29 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:57644 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229628AbiJLVDZ (ORCPT ); Wed, 12 Oct 2022 17:03:25 -0400 Received: from mail-wr1-x42e.google.com (mail-wr1-x42e.google.com [IPv6:2a00:1450:4864:20::42e]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 6F762BDB for ; Wed, 12 Oct 2022 14:03:24 -0700 (PDT) Received: by mail-wr1-x42e.google.com with SMTP id r13so27925985wrj.11 for ; Wed, 12 Oct 2022 14:03:24 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=bUdYd+/n3y2i5wi6BAUzfJxEHaBcqp9427yq15owIfc=; b=WvRsELn2wLSRXgiTbMYyra7YxgMqHBrsM7SUUw1g2KXVlpy+BqGk9SXl+V+OTT/RdB 8l/bk1Y3o7dGxA8+iPxeGVlvD7skvgUDRuBL+FMw5vNdrheKt9FEi4Ye9zE6sEvKb98J DULCxIn5DBb5i1h/ORYK9udIcesjpKcpAk+zjC92nwjK9uiWW/oulQyQfIe76cC724t3 PcXlRG6ocdimZaIMxPj63vovijAQPpVhzoSiW/GALmH06cE57l4asdjE/xyiNW/iXocP cXHVcx/CNfmM0F6lIueavGd/IUAtspU4V8SqZgWDKhW08mRwYXe/LkBheUBgBtkzSlUO Pr9w== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=bUdYd+/n3y2i5wi6BAUzfJxEHaBcqp9427yq15owIfc=; b=s150slDPL8tb6/h1+sIuxQD3bXf9QBMl54RPTOPYPwYgYmq7gaJQAVhFVS26O7gpZu pznp0rmWdGNkyW2+PgFCOKJBdTUGwndJJEUPNnoe7W/YZbfwtdGjRijbfZXZq+6vZbRW I5HyWx1Tz3d+Ra1Qh6Wusy1hwcKqemFqUpMMH3EEMTZ17VZkrtCWFrkJpuR21cUMClDT l0apAqJQFEmAedfvGaLoTP7mzOj637JbkaFpAW2MmXXUQS2quJLRtGoKKrhM+LEJtR8z pe0yF79VhWmObsOvBEn55WWaJtT4+dNw5JfDVei6iLgTWTqLk8SOlC79J1ZdzP6O2nhU aQ8A== X-Gm-Message-State: ACrzQf1/mDPcr9ZGNIXn/d76CDqfYwce0SnjOOADv6/Ew11ftP/Ci5L3 gtyo10LDrZ/bnyKMHZTHn2nvzVoXvJuWtg== X-Google-Smtp-Source: AMsMyM6jCPlO7Bo7UhlM1MWi5F4UV5NlNjJbWSE2pY3xOt/D2hkYGTMHthx+WmT4zPe9O1UQhgZrJg== X-Received: by 2002:a05:6000:1a85:b0:230:f238:a48c with SMTP id f5-20020a0560001a8500b00230f238a48cmr8828953wry.92.1665608602677; Wed, 12 Oct 2022 14:03:22 -0700 (PDT) Received: from vm.nix.is (vm.nix.is. [2a01:4f8:120:2468::2]) by smtp.gmail.com with ESMTPSA id b6-20020adff246000000b00228a6ce17b4sm550079wrp.37.2022.10.12.14.03.21 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 12 Oct 2022 14:03:22 -0700 (PDT) From: =?UTF-8?q?=C3=86var=20Arnfj=C3=B6r=C3=B0=20Bjarmason?= To: git@vger.kernel.org Cc: Junio C Hamano , Calvin Wan , Emily Shaffer , Phillip Wood , =?UTF-8?q?=C3=86var=20Arnfj=C3=B6r=C3=B0=20Bjarmason?= Subject: [PATCH v3 02/15] run-command API: have "run_processes_parallel{,_tr2}()" return void Date: Wed, 12 Oct 2022 23:02:21 +0200 Message-Id: X-Mailer: git-send-email 2.38.0.971.ge79ff6d20e7 In-Reply-To: References: MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: git@vger.kernel.org Change the "run_processes_parallel{,_tr2}()" functions to return void, instead of int. Ever since c553c72eed6 (run-command: add an asynchronous parallel child processor, 2015-12-15) they have unconditionally returned 0. To get a "real" return value out of this function the caller needs to get it via the "task_finished_fn" callback, see the example in hook.c added in 96e7225b310 (hook: add 'run' subcommand, 2021-12-22). So the "result = " and "if (!result)" code added to "builtin/fetch.c" d54dea77dba (fetch: let --jobs= parallelize --multiple, too, 2019-10-05) has always been redundant, we always took that "if" path. Likewise the "ret =" in "t/helper/test-run-command.c" added in be5d88e1128 (test-tool run-command: learn to run (parts of) the testsuite, 2019-10-04) wasn't used, instead we got the return value from the "if (suite.failed.nr > 0)" block seen in the context. Subsequent commits will alter this API interface, getting rid of this always-zero return value makes it easier to understand those changes. Signed-off-by: Ævar Arnfjörð Bjarmason --- builtin/fetch.c | 17 ++++++++--------- run-command.c | 27 +++++++++++---------------- run-command.h | 16 ++++++++-------- t/helper/test-run-command.c | 16 ++++++++-------- 4 files changed, 35 insertions(+), 41 deletions(-) diff --git a/builtin/fetch.c b/builtin/fetch.c index a0fca93bb6a..78043fb67ef 100644 --- a/builtin/fetch.c +++ b/builtin/fetch.c @@ -1953,15 +1953,14 @@ static int fetch_multiple(struct string_list *list, int max_children) struct parallel_fetch_state state = { argv.v, list, 0, 0 }; strvec_push(&argv, "--end-of-options"); - result = run_processes_parallel_tr2(max_children, - &fetch_next_remote, - &fetch_failed_to_start, - &fetch_finished, - &state, - "fetch", "parallel/fetch"); - - if (!result) - result = state.result; + run_processes_parallel_tr2(max_children, + &fetch_next_remote, + &fetch_failed_to_start, + &fetch_finished, + &state, + "fetch", "parallel/fetch"); + + result = state.result; } else for (i = 0; i < list->nr; i++) { const char *name = list->items[i].string; diff --git a/run-command.c b/run-command.c index 5ec3a46dccf..642e6b6e057 100644 --- a/run-command.c +++ b/run-command.c @@ -1783,11 +1783,11 @@ static int pp_collect_finished(struct parallel_processes *pp) return result; } -int run_processes_parallel(int n, - get_next_task_fn get_next_task, - start_failure_fn start_failure, - task_finished_fn task_finished, - void *pp_cb) +void run_processes_parallel(int n, + get_next_task_fn get_next_task, + start_failure_fn start_failure, + task_finished_fn task_finished, + void *pp_cb) { int i, code; int output_timeout = 100; @@ -1834,25 +1834,20 @@ int run_processes_parallel(int n, } pp_cleanup(&pp); - return 0; } -int run_processes_parallel_tr2(int n, get_next_task_fn get_next_task, - start_failure_fn start_failure, - task_finished_fn task_finished, void *pp_cb, - const char *tr2_category, const char *tr2_label) +void run_processes_parallel_tr2(int n, get_next_task_fn get_next_task, + start_failure_fn start_failure, + task_finished_fn task_finished, void *pp_cb, + const char *tr2_category, const char *tr2_label) { - int result; - trace2_region_enter_printf(tr2_category, tr2_label, NULL, "max:%d", ((n < 1) ? online_cpus() : n)); - result = run_processes_parallel(n, get_next_task, start_failure, - task_finished, pp_cb); + run_processes_parallel(n, get_next_task, start_failure, + task_finished, pp_cb); trace2_region_leave(tr2_category, tr2_label, NULL); - - return result; } int run_auto_maintenance(int quiet) diff --git a/run-command.h b/run-command.h index 0e85e5846a5..e76a1b6b5b3 100644 --- a/run-command.h +++ b/run-command.h @@ -485,14 +485,14 @@ typedef int (*task_finished_fn)(int result, * API reads that setting. */ extern int run_processes_parallel_ungroup; -int run_processes_parallel(int n, - get_next_task_fn, - start_failure_fn, - task_finished_fn, - void *pp_cb); -int run_processes_parallel_tr2(int n, get_next_task_fn, start_failure_fn, - task_finished_fn, void *pp_cb, - const char *tr2_category, const char *tr2_label); +void run_processes_parallel(int n, + get_next_task_fn, + start_failure_fn, + task_finished_fn, + void *pp_cb); +void run_processes_parallel_tr2(int n, get_next_task_fn, start_failure_fn, + task_finished_fn, void *pp_cb, + const char *tr2_category, const char *tr2_label); /** * Convenience function which prepares env for a command to be run in a diff --git a/t/helper/test-run-command.c b/t/helper/test-run-command.c index 390fa4fb724..30c474f3243 100644 --- a/t/helper/test-run-command.c +++ b/t/helper/test-run-command.c @@ -192,8 +192,8 @@ static int testsuite(int argc, const char **argv) fprintf(stderr, "Running %"PRIuMAX" tests (%d at a time)\n", (uintmax_t)suite.tests.nr, max_jobs); - ret = run_processes_parallel(max_jobs, next_test, test_failed, - test_finished, &suite); + run_processes_parallel(max_jobs, next_test, test_failed, + test_finished, &suite); if (suite.failed.nr > 0) { ret = 1; @@ -428,16 +428,16 @@ int cmd__run_command(int argc, const char **argv) strvec_pushv(&proc.args, (const char **)argv + 3); if (!strcmp(argv[1], "run-command-parallel")) { - exit(run_processes_parallel(jobs, parallel_next, - NULL, NULL, &proc)); + run_processes_parallel(jobs, parallel_next, NULL, NULL, &proc); } else if (!strcmp(argv[1], "run-command-abort")) { - exit(run_processes_parallel(jobs, parallel_next, - NULL, task_finished, &proc)); + run_processes_parallel(jobs, parallel_next, NULL, + task_finished, &proc); } else if (!strcmp(argv[1], "run-command-no-jobs")) { - exit(run_processes_parallel(jobs, no_job, - NULL, task_finished, &proc)); + run_processes_parallel(jobs, no_job, NULL, task_finished, + &proc); } else { fprintf(stderr, "check usage\n"); return 1; } + exit(0); } -- 2.38.0.971.ge79ff6d20e7