diff options
| -rw-r--r-- | tools/perf/builtin-trace.c | 23 |
1 files changed, 12 insertions, 11 deletions
diff --git a/tools/perf/builtin-trace.c b/tools/perf/builtin-trace.c index 86d2b1f2399c..ec8289570f4f 100644 --- a/tools/perf/builtin-trace.c +++ b/tools/perf/builtin-trace.c @@ -1098,10 +1098,12 @@ static size_t trace__fprintf_tstamp(struct trace *trace, u64 tstamp, FILE *fp) } static bool done = false; +static bool interrupted = false; -static void sig_handler(int sig __maybe_unused) +static void sig_handler(int sig) { done = true; + interrupted = sig == SIGINT; } static size_t trace__fprintf_entry_head(struct trace *trace, struct thread *thread, @@ -1771,24 +1773,23 @@ again: handler = evsel->handler.func; handler(trace, evsel, &sample); - if (done) - goto out_unmap_evlist; + if (interrupted) + goto out_disable; } } if (trace->nr_events == before) { - if (done) - goto out_unmap_evlist; + int timeout = done ? 100 : -1; - poll(evlist->pollfd, evlist->nr_fds, -1); + if (poll(evlist->pollfd, evlist->nr_fds, timeout) > 0) + goto again; + } else { + goto again; } - if (done) - perf_evlist__disable(evlist); - else - goto again; +out_disable: + perf_evlist__disable(evlist); -out_unmap_evlist: if (!err) { if (trace->summary) trace__fprintf_thread_summary(trace, trace->output); |