diff options
Diffstat (limited to 'tools/perf/util/evlist.c')
| -rw-r--r-- | tools/perf/util/evlist.c | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/tools/perf/util/evlist.c b/tools/perf/util/evlist.c index a3e28b49128..023bc3873ae 100644 --- a/tools/perf/util/evlist.c +++ b/tools/perf/util/evlist.c @@ -428,6 +428,27 @@ void perf_evlist__add_pollfd(struct perf_evlist *evlist, int fd) evlist->nr_fds++; } +int perf_evlist__filter_pollfd(struct perf_evlist *evlist, short revents_and_mask) +{ + int fd, nr_fds = 0; + + if (evlist->nr_fds == 0) + return 0; + + for (fd = 0; fd < evlist->nr_fds; ++fd) { + if (evlist->pollfd[fd].revents & revents_and_mask) + continue; + + if (fd != nr_fds) + evlist->pollfd[nr_fds] = evlist->pollfd[fd]; + + ++nr_fds; + } + + evlist->nr_fds = nr_fds; + return nr_fds; +} + static void perf_evlist__id_hash(struct perf_evlist *evlist, struct perf_evsel *evsel, int cpu, int thread, u64 id) |