From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754745Ab3I1TNf (ORCPT ); Sat, 28 Sep 2013 15:13:35 -0400 Received: from mail-pb0-f46.google.com ([209.85.160.46]:63842 "EHLO mail-pb0-f46.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753501Ab3I1TNN (ORCPT ); Sat, 28 Sep 2013 15:13:13 -0400 From: David Ahern To: acme@ghostprotocols.net, linux-kernel@vger.kernel.org Cc: David Ahern , Arnaldo Carvalho de Melo , Ingo Molnar , Frederic Weisbecker , Peter Zijlstra , Jiri Olsa , Namhyung Kim , Stephane Eranian Subject: [PATCH 1/7] perf util: Add machine method to loop over threads and invoke handler Date: Sat, 28 Sep 2013 13:12:58 -0600 Message-Id: <1380395584-9025-2-git-send-email-dsahern@gmail.com> X-Mailer: git-send-email 1.7.10.1 In-Reply-To: <1380395584-9025-1-git-send-email-dsahern@gmail.com> References: <1380395584-9025-1-git-send-email-dsahern@gmail.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Loop over all threads within a machine - including threads moved to the dead threads list -- and invoked a function. This allows commands to run some specific function on each thread (eg., dump statistics) yet hides how the threads are maintained within the machine and Signed-off-by: David Ahern Cc: Arnaldo Carvalho de Melo Cc: Ingo Molnar Cc: Frederic Weisbecker Cc: Peter Zijlstra Cc: Jiri Olsa Cc: Namhyung Kim Cc: Stephane Eranian --- tools/perf/util/machine.c | 23 +++++++++++++++++++++++ tools/perf/util/machine.h | 4 ++++ 2 files changed, 27 insertions(+) diff --git a/tools/perf/util/machine.c b/tools/perf/util/machine.c index 40083df..d5055be 100644 --- a/tools/perf/util/machine.c +++ b/tools/perf/util/machine.c @@ -1376,3 +1376,26 @@ int machine__resolve_callchain(struct machine *machine, sample); } + +int machine__for_each_thread(struct machine *machine, + int (*fn)(struct thread *thread, void *p), + void *priv) +{ + struct rb_node *nd; + struct thread *thread; + int rc = 0; + + for (nd = rb_first(&machine->threads); nd; nd = rb_next(nd)) { + thread = rb_entry(nd, struct thread, rb_node); + rc = fn(thread, priv); + if (rc != 0) + return rc; + } + + list_for_each_entry(thread, &machine->dead_threads, node) { + rc = fn(thread, priv); + if (rc != 0) + return rc; + } + return rc; +} diff --git a/tools/perf/util/machine.h b/tools/perf/util/machine.h index 58a6be1..dc9c57e 100644 --- a/tools/perf/util/machine.h +++ b/tools/perf/util/machine.h @@ -165,4 +165,8 @@ void machines__destroy_kernel_maps(struct machines *machines); size_t machine__fprintf_vmlinux_path(struct machine *machine, FILE *fp); +int machine__for_each_thread(struct machine *machine, + int (*fn)(struct thread *thread, void *p), + void *priv); + #endif /* __PERF_MACHINE_H */ -- 1.7.10.1