diff options
Diffstat (limited to 'tools/perf/builtin-stat.c')
| -rw-r--r-- | tools/perf/builtin-stat.c | 18 |
1 files changed, 15 insertions, 3 deletions
diff --git a/tools/perf/builtin-stat.c b/tools/perf/builtin-stat.c index ea072d47c560..14688710195c 100644 --- a/tools/perf/builtin-stat.c +++ b/tools/perf/builtin-stat.c @@ -1047,7 +1047,17 @@ static int parse_control_option(const struct option *opt, { struct perf_stat_config *config = opt->value; - return evlist__parse_control(str, &config->ctl_fd, &config->ctl_fd_ack); + return evlist__parse_control(str, &config->ctl_fd, &config->ctl_fd_ack, &config->ctl_fd_close); +} + +static void close_control_option(struct perf_stat_config *config) +{ + if (config->ctl_fd_close) { + config->ctl_fd_close = false; + close(config->ctl_fd); + if (config->ctl_fd_ack >= 0) + close(config->ctl_fd_ack); + } } static struct option stat_options[] = { @@ -1153,9 +1163,10 @@ static struct option stat_options[] = { "libpfm4 event selector. use 'perf list' to list available events", parse_libpfm_events_option), #endif - OPT_CALLBACK(0, "control", &stat_config, "fd:ctl-fd[,ack-fd]", + OPT_CALLBACK(0, "control", &stat_config, "fd:ctl-fd[,ack-fd] or fifo:ctl-fifo[,ack-fifo]", "Listen on ctl-fd descriptor for command to control measurement ('enable': enable events, 'disable': disable events).\n" - "\t\t\t Optionally send control command completion ('ack\\n') to ack-fd descriptor.", + "\t\t\t Optionally send control command completion ('ack\\n') to ack-fd descriptor.\n" + "\t\t\t Alternatively, ctl-fifo / ack-fifo will be opened and used as ctl-fd / ack-fd.", parse_control_option), OPT_END() }; @@ -2398,6 +2409,7 @@ out: metricgroup__rblist_exit(&stat_config.metric_events); runtime_stat_delete(&stat_config); + close_control_option(&stat_config); return status; } |