Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755685Ab0DBFFK (ORCPT ); Fri, 2 Apr 2010 01:05:10 -0400 Received: from mail-yx0-f195.google.com ([209.85.210.195]:57519 "EHLO mail-yx0-f195.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1757678Ab0DBFFB (ORCPT ); Fri, 2 Apr 2010 01:05:01 -0400 X-Greylist: delayed 326 seconds by postgrey-1.27 at vger.kernel.org; Fri, 02 Apr 2010 01:05:01 EDT DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=from:to:cc:subject:date:message-id:x-mailer:in-reply-to:references; b=BeMdkZqsZgtBCwk0PBYatvMJ8ez/wX2dTSK8MQ+WbzIbmQTMwyfaPYPeFMIUrEsNSy EWqxIN9S+/lnn4TiD9HhaBTDRjf0Nhn5tHAlRTvpSmE+WZyjoNVg99jOpQu2dIPTSAwt o0doC/9gJWywaFEFhEHYd9MwDvBInDGVMqU6M= From: Tom Zanussi To: linux-kernel@vger.kernel.org Cc: mingo@elte.hu, fweisbec@gmail.com, rostedt@goodmis.org, k-keiichi@bx.jp.nec.com, acme@ghostprotocols.net Subject: [RFC v2][PATCH 04/11] perf trace: introduce special handling for pipe input Date: Thu, 1 Apr 2010 23:59:18 -0500 Message-Id: <1270184365-8281-5-git-send-email-tzanussi@gmail.com> X-Mailer: git-send-email 1.6.4.GIT In-Reply-To: <1270184365-8281-1-git-send-email-tzanussi@gmail.com> References: <1270184365-8281-1-git-send-email-tzanussi@gmail.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1591 Lines: 53 Adds special treatment for stdin - if the user specifies '-i -' to perf trace, the intent is that the event stream be read from stdin rather than from a disk file. The actual handling of the '-' filename is done by the session; this just adds a signal handler to stop reporting, and turns off interference by the pager. Signed-off-by: Tom Zanussi --- tools/perf/builtin-trace.c | 12 +++++++++++- 1 files changed, 11 insertions(+), 1 deletions(-) diff --git a/tools/perf/builtin-trace.c b/tools/perf/builtin-trace.c index 407041d..718fddd 100644 --- a/tools/perf/builtin-trace.c +++ b/tools/perf/builtin-trace.c @@ -106,8 +106,17 @@ static struct perf_event_ops event_ops = { .comm = event__process_comm, }; +extern volatile int session_done; + +static void sig_handler(int sig __unused) +{ + session_done = 1; +} + static int __cmd_trace(struct perf_session *session) { + signal(SIGINT, sig_handler); + return perf_session__process_events(session, &event_ops); } @@ -580,7 +589,8 @@ int cmd_trace(int argc, const char **argv, const char *prefix __used) if (session == NULL) return -ENOMEM; - if (!perf_session__has_traces(session, "record -R")) + if (strcmp(input_name, "-") && + !perf_session__has_traces(session, "record -R")) return -EINVAL; if (generate_script_lang) { -- 1.6.4.GIT -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/