From mboxrd@z Thu Jan 1 00:00:00 1970 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=-15.1 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,INCLUDES_PATCH,MAILING_LIST_MULTI, MENTIONS_GIT_HOSTING,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED, USER_AGENT_GIT 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 C0D82C3A589 for ; Tue, 20 Aug 2019 19:28:52 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 9AA1C2339D for ; Tue, 20 Aug 2019 19:28:52 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1566329332; bh=j+DB4Z07eOWu/26uUDkkDzdXlDw4pAn2qbDCBBstdpw=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=cIEVA82/vwwy18HUaGLmYtUch78Votcdi5gW3lr9+jBMNMu1RXCpkCDme4CIY/js4 lVbAG9wOW/1jRxkMSPZ6d8HIt1b8ucqn5o/lT81zjDvHFDXb6sxHTCT7nNCIiYXHAK iEWFVp6MNIPNtqKH2Pqp32UagaQzJpaXs3Lhrouc= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730947AbfHTT2v (ORCPT ); Tue, 20 Aug 2019 15:28:51 -0400 Received: from mail.kernel.org ([198.145.29.99]:41604 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1730937AbfHTT2s (ORCPT ); Tue, 20 Aug 2019 15:28:48 -0400 Received: from quaco.ghostprotocols.net (177.206.236.100.dynamic.adsl.gvt.net.br [177.206.236.100]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id C2E3B22DA7; Tue, 20 Aug 2019 19:28:45 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1566329328; bh=j+DB4Z07eOWu/26uUDkkDzdXlDw4pAn2qbDCBBstdpw=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=s3WFABUe1P+5pDz61f2O6fREpls/cPfn7aFcsGGsPac40dMXUMpmJdMlLrMLQdO14 pFrxcGFHHxIoJT4KH/SpcKRLWsyU9xhJ49WhdVpUKTCxILqONDTT0xUi1XF6Ea8hCk AtgYg0KlfdZVBHVs1fp1Yu07rgi0tpkqfbrsTSq8= From: Arnaldo Carvalho de Melo To: Ingo Molnar , Thomas Gleixner Cc: Jiri Olsa , Namhyung Kim , Clark Williams , linux-kernel@vger.kernel.org, linux-perf-users@vger.kernel.org, Arnaldo Carvalho de Melo , Adrian Hunter Subject: [PATCH 14/17] perf ui browser: Allow specifying message to show when no samples are available to display Date: Tue, 20 Aug 2019 16:27:30 -0300 Message-Id: <20190820192733.19180-15-acme@kernel.org> X-Mailer: git-send-email 2.21.0 In-Reply-To: <20190820192733.19180-1-acme@kernel.org> References: <20190820192733.19180-1-acme@kernel.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Arnaldo Carvalho de Melo The 'perf top' tool will use that to avoid having a initial blank screen while collecting the minimum number of samples to sort and display. Cc: Adrian Hunter Cc: Jiri Olsa Cc: Namhyung Kim Link: https://lkml.kernel.org/n/tip-89ciceg8cy4442he3t0jzo3f@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/ui/browser.c | 2 ++ tools/perf/ui/browser.h | 1 + 2 files changed, 3 insertions(+) diff --git a/tools/perf/ui/browser.c b/tools/perf/ui/browser.c index d227d74b28f8..c797a853d3a0 100644 --- a/tools/perf/ui/browser.c +++ b/tools/perf/ui/browser.c @@ -347,6 +347,8 @@ static int __ui_browser__refresh(struct ui_browser *browser) SLsmg_fill_region(browser->y + row + browser->extra_title_lines, browser->x, browser->rows - row, width, ' '); + if (browser->nr_entries == 0 && browser->no_samples_msg) + __ui__info_window(NULL, browser->no_samples_msg, NULL); return 0; } diff --git a/tools/perf/ui/browser.h b/tools/perf/ui/browser.h index dc1444136658..3678eb88f119 100644 --- a/tools/perf/ui/browser.h +++ b/tools/perf/ui/browser.h @@ -23,6 +23,7 @@ struct ui_browser { void *priv; const char *title; char *helpline; + const char *no_samples_msg; void (*refresh_dimensions)(struct ui_browser *browser); unsigned int (*refresh)(struct ui_browser *browser); void (*write)(struct ui_browser *browser, void *entry, int row); -- 2.21.0