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Date: Mon, 25 May 2020 17:23:04 +0300 From: Alexey Budankov <alexey.budankov@...ux.intel.com> To: Arnaldo Carvalho de Melo <acme@...nel.org> Cc: Jiri Olsa <jolsa@...hat.com>, Namhyung Kim <namhyung@...nel.org>, Alexander Shishkin <alexander.shishkin@...ux.intel.com>, Peter Zijlstra <peterz@...radead.org>, Ingo Molnar <mingo@...hat.com>, Andi Kleen <ak@...ux.intel.com>, linux-kernel <linux-kernel@...r.kernel.org> Subject: [PATCH v4 09/10] perf record: implement control commands handling Implement handling of 'enable' and 'disable' control commands coming from control file descriptor. Signed-off-by: Alexey Budankov <alexey.budankov@...ux.intel.com> --- tools/perf/builtin-record.c | 16 ++++++++++++++++ 1 file changed, 16 insertions(+) diff --git a/tools/perf/builtin-record.c b/tools/perf/builtin-record.c index 8c3ec29e7e80..1ff3b7a77283 100644 --- a/tools/perf/builtin-record.c +++ b/tools/perf/builtin-record.c @@ -1526,6 +1526,7 @@ static int __cmd_record(struct record *rec, int argc, const char **argv) bool disabled = false, draining = false; int fd; float ratio = 0; + enum evlist_ctl_cmd cmd = EVLIST_CTL_CMD_UNSUPPORTED; atexit(record__sig_exit); signal(SIGCHLD, sig_handler); @@ -1842,6 +1843,21 @@ static int __cmd_record(struct record *rec, int argc, const char **argv) alarm(rec->switch_output.time); } + if (evlist__ctlfd_process(rec->evlist, &cmd) > 0) { + switch (cmd) { + case EVLIST_CTL_CMD_ENABLE: + pr_info(EVLIST_ENABLED_MSG); + break; + case EVLIST_CTL_CMD_DISABLE: + pr_info(EVLIST_DISABLED_MSG); + break; + case EVLIST_CTL_CMD_ACK: + case EVLIST_CTL_CMD_UNSUPPORTED: + default: + break; + } + } + if (hits == rec->samples) { if (done || draining) break; -- 2.24.1
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