All of lore.kernel.org
 help / color / mirror / Atom feed
From: Alexey Budankov <alexey.budankov@linux.intel.com>
To: Arnaldo Carvalho de Melo <acme@kernel.org>, Jiri Olsa <jolsa@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>,
	Alexander Shishkin <alexander.shishkin@linux.intel.com>,
	Adrian Hunter <adrian.hunter@intel.com>,
	Andi Kleen <ak@linux.intel.com>,
	Peter Zijlstra <peterz@infradead.org>,
	Ingo Molnar <mingo@redhat.com>,
	linux-kernel <linux-kernel@vger.kernel.org>
Subject: [PATCH v2 11/15] perf evlist: introduce evlist__ctlfd_update() to update ctl fd status
Date: Wed, 21 Oct 2020 19:06:26 +0300	[thread overview]
Message-ID: <0081ef74-c3cf-1387-76e1-73d8396b6748@linux.intel.com> (raw)
In-Reply-To: <1ec29ed6-0047-d22f-630b-a7f5ccee96b4@linux.intel.com>


Introduce evlist__ctlfd_update() to update ctl fd poll status
in evlist pollfd array using other pollfd object.

Signed-off-by: Alexey Budankov <alexey.budankov@linux.intel.com>
---
 tools/perf/util/evlist.c | 16 ++++++++++++++++
 tools/perf/util/evlist.h |  1 +
 2 files changed, 17 insertions(+)

diff --git a/tools/perf/util/evlist.c b/tools/perf/util/evlist.c
index 8bdf3d2c907c..758a4896fedd 100644
--- a/tools/perf/util/evlist.c
+++ b/tools/perf/util/evlist.c
@@ -1970,6 +1970,22 @@ int evlist__ctlfd_process(struct evlist *evlist, enum evlist_ctl_cmd *cmd)
 	return err;
 }
 
+int evlist__ctlfd_update(struct evlist *evlist, struct pollfd *update)
+{
+	int ctlfd_pos = evlist->ctl_fd.pos;
+	struct pollfd *entries = evlist->core.pollfd.entries;
+
+	if (!evlist__ctlfd_initialized(evlist))
+		return 0;
+
+	if (entries[ctlfd_pos].fd != update->fd ||
+	    entries[ctlfd_pos].events != update->events)
+		return -1;
+
+	entries[ctlfd_pos].revents = update->revents;
+	return 0;
+}
+
 struct evsel *evlist__find_evsel(struct evlist *evlist, int idx)
 {
 	struct evsel *evsel;
diff --git a/tools/perf/util/evlist.h b/tools/perf/util/evlist.h
index e1a450322bc5..9b73d6ccf066 100644
--- a/tools/perf/util/evlist.h
+++ b/tools/perf/util/evlist.h
@@ -380,6 +380,7 @@ void evlist__close_control(int ctl_fd, int ctl_fd_ack, bool *ctl_fd_close);
 int evlist__initialize_ctlfd(struct evlist *evlist, int ctl_fd, int ctl_fd_ack);
 int evlist__finalize_ctlfd(struct evlist *evlist);
 bool evlist__ctlfd_initialized(struct evlist *evlist);
+int evlist__ctlfd_update(struct evlist *evlist, struct pollfd *update);
 int evlist__ctlfd_process(struct evlist *evlist, enum evlist_ctl_cmd *cmd);
 int evlist__ctlfd_ack(struct evlist *evlist);
 
-- 
2.24.1



  parent reply	other threads:[~2020-10-21 16:06 UTC|newest]

Thread overview: 64+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-10-21 15:52 [PATCH v2 00/15] Introduce threaded trace streaming for basic perf record operation Alexey Budankov
2020-10-21 15:56 ` [PATCH v2 01/15] perf session: introduce trace file path to be shown in raw trace dump Alexey Budankov
2020-10-22  4:28   ` Namhyung Kim
2020-10-21 15:57 ` [PATCH v2 02/15] perf report: output trace file name " Alexey Budankov
2020-10-22  4:29   ` Namhyung Kim
2020-10-21 15:57 ` [PATCH v2 03/15] perf data: open data directory in read access mode Alexey Budankov
2020-10-22  4:31   ` Namhyung Kim
2020-10-22  7:50     ` Alexey Budankov
2020-10-24 15:43   ` Jiri Olsa
2020-10-26 17:47     ` Alexey Budankov
2020-10-27 11:59       ` Jiri Olsa
2020-10-27 14:44         ` Alexey Budankov
2020-10-21 15:59 ` [PATCH v2 04/15] perf session: move reader object definition to header file Alexey Budankov
2020-10-22  4:31   ` Namhyung Kim
2020-10-24 15:44   ` Jiri Olsa
2020-10-26 17:50     ` Alexey Budankov
2020-10-21 16:00 ` [PATCH v2 05/15] perf session: introduce decompressor into trace reader object Alexey Budankov
2020-10-22  4:36   ` Namhyung Kim
2020-10-22  7:20     ` Alexey Budankov
2020-10-24 15:44   ` Jiri Olsa
2020-10-26  8:54     ` Alexei Budankov
2020-10-21 16:01 ` [PATCH v2 06/15] perf session: load data directory into tool process memory Alexey Budankov
2020-10-24 15:43   ` Jiri Olsa
2020-10-27  7:37     ` Alexey Budankov
2020-10-27 12:21       ` Jiri Olsa
2020-10-27 14:43         ` Alexey Budankov
2020-10-28  7:22           ` Namhyung Kim
2020-10-28 15:39             ` Jiri Olsa
2020-10-29 11:00               ` Namhyung Kim
2020-10-28 15:36           ` Jiri Olsa
2020-10-27 15:04         ` Alexey Budankov
2020-10-21 16:01 ` [PATCH v2 07/15] perf record: introduce trace file, compressor and stats in mmap object Alexey Budankov
2020-10-21 16:02 ` [PATCH v2 08/15] perf record: write trace data into mmap trace files Alexey Budankov
2020-10-24 15:44   ` Jiri Olsa
2020-10-26  8:52     ` Alexei Budankov
2020-10-26 10:32       ` Jiri Olsa
2020-10-26 14:04         ` Alexei Budankov
2020-10-21 16:03 ` [PATCH v2 09/15] perf record: introduce thread specific objects for trace streaming Alexey Budankov
2020-10-24 15:44   ` Jiri Olsa
2020-10-26  8:53     ` Alexei Budankov
2020-10-21 16:04 ` [PATCH v2 10/15] perf record: manage thread specific data array Alexey Budankov
2020-10-24 15:44   ` Jiri Olsa
2020-10-26  8:39     ` Alexei Budankov
2020-10-21 16:06 ` Alexey Budankov [this message]
2020-10-21 16:07 ` [PATCH v2 12/15] perf record: introduce thread local variable for trace streaming Alexey Budankov
2020-10-24 15:43   ` Jiri Olsa
2020-10-26  8:21     ` Alexei Budankov
2020-10-26 10:34       ` Jiri Olsa
2020-10-26 14:11         ` Alexei Budankov
2020-10-27 12:01           ` Jiri Olsa
2020-10-27 14:16             ` Alexey Budankov
2020-10-27 15:58             ` Alexey Budankov
2020-10-21 16:08 ` [PATCH v2 13/15] perf record: stop threads in the end of " Alexey Budankov
2020-10-21 16:10 ` [PATCH v2 14/15] perf record: start threads in the beginning " Alexey Budankov
2020-10-24 15:44   ` Jiri Olsa
2020-10-26  8:39     ` Alexei Budankov
2020-10-21 16:10 ` [PATCH v2 15/15] perf record: introduce --threads command line option Alexey Budankov
2020-10-24 15:43 ` [PATCH v2 00/15] Introduce threaded trace streaming for basic perf record operation Jiri Olsa
2020-10-26 17:59   ` Alexey Budankov
2020-10-27 12:10     ` Jiri Olsa
2020-10-27 14:26       ` Alexey Budankov
2020-10-27 16:01       ` Alexey Budankov
2020-10-28  7:08         ` Namhyung Kim
     [not found]           ` <b6150d2f-04a6-9204-59ac-c31c8697c630@linux.intel.com>
2020-10-28 15:32             ` Jiri Olsa

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=0081ef74-c3cf-1387-76e1-73d8396b6748@linux.intel.com \
    --to=alexey.budankov@linux.intel.com \
    --cc=acme@kernel.org \
    --cc=adrian.hunter@intel.com \
    --cc=ak@linux.intel.com \
    --cc=alexander.shishkin@linux.intel.com \
    --cc=jolsa@redhat.com \
    --cc=linux-kernel@vger.kernel.org \
    --cc=mingo@redhat.com \
    --cc=namhyung@kernel.org \
    --cc=peterz@infradead.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body. 
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.