Adding perf_evlist__filter_pollfd function and exporting it in perf/evlist.h header, so libperf users can check if descriptor is still alive.
Link: http://lkml.kernel.org/n/tip-7lmjzpk6k2wfhh1os8qw1...@git.kernel.org Signed-off-by: Jiri Olsa <jo...@kernel.org> --- tools/perf/lib/evlist.c | 15 +++++++++++++++ tools/perf/lib/include/perf/evlist.h | 2 ++ tools/perf/lib/libperf.map | 1 + tools/perf/util/evlist.c | 12 +----------- 4 files changed, 19 insertions(+), 11 deletions(-) diff --git a/tools/perf/lib/evlist.c b/tools/perf/lib/evlist.c index 8920833afa9e..ee1d364460e6 100644 --- a/tools/perf/lib/evlist.c +++ b/tools/perf/lib/evlist.c @@ -313,6 +313,21 @@ int perf_evlist__add_pollfd(struct perf_evlist *evlist, int fd, return pos; } +static void perf_evlist__munmap_filtered(struct fdarray *fda, int fd, + void *arg __maybe_unused) +{ + struct perf_mmap *map = fda->priv[fd].ptr; + + if (map) + perf_mmap__put(map); +} + +int perf_evlist__filter_pollfd(struct perf_evlist *evlist, short revents_and_mask) +{ + return fdarray__filter(&evlist->pollfd, revents_and_mask, + perf_evlist__munmap_filtered, NULL); +} + int perf_evlist__poll(struct perf_evlist *evlist, int timeout) { return fdarray__poll(&evlist->pollfd, timeout); diff --git a/tools/perf/lib/include/perf/evlist.h b/tools/perf/lib/include/perf/evlist.h index 28b6a12a8a2b..16f526e74d13 100644 --- a/tools/perf/lib/include/perf/evlist.h +++ b/tools/perf/lib/include/perf/evlist.h @@ -32,6 +32,8 @@ LIBPERF_API void perf_evlist__set_maps(struct perf_evlist *evlist, struct perf_cpu_map *cpus, struct perf_thread_map *threads); LIBPERF_API int perf_evlist__poll(struct perf_evlist *evlist, int timeout); +LIBPERF_API int perf_evlist__filter_pollfd(struct perf_evlist *evlist, + short revents_and_mask); LIBPERF_API int perf_evlist__mmap(struct perf_evlist *evlist, int pages); LIBPERF_API void perf_evlist__munmap(struct perf_evlist *evlist); diff --git a/tools/perf/lib/libperf.map b/tools/perf/lib/libperf.map index 198dcf305356..90aee2a635b2 100644 --- a/tools/perf/lib/libperf.map +++ b/tools/perf/lib/libperf.map @@ -41,6 +41,7 @@ LIBPERF_0.0.1 { perf_evlist__poll; perf_evlist__mmap; perf_evlist__munmap; + perf_evlist__filter_pollfd; perf_mmap__consume; perf_mmap__read_init; perf_mmap__read_done; diff --git a/tools/perf/util/evlist.c b/tools/perf/util/evlist.c index 0c69621e2b2e..9edb0855f711 100644 --- a/tools/perf/util/evlist.c +++ b/tools/perf/util/evlist.c @@ -398,19 +398,9 @@ int evlist__add_pollfd(struct evlist *evlist, int fd) return perf_evlist__add_pollfd(&evlist->core, fd, NULL, POLLIN); } -static void perf_evlist__munmap_filtered(struct fdarray *fda, int fd, - void *arg __maybe_unused) -{ - struct perf_mmap *map = fda->priv[fd].ptr; - - if (map) - perf_mmap__put(map); -} - int evlist__filter_pollfd(struct evlist *evlist, short revents_and_mask) { - return fdarray__filter(&evlist->core.pollfd, revents_and_mask, - perf_evlist__munmap_filtered, NULL); + return perf_evlist__filter_pollfd(&evlist->core, revents_and_mask); } int evlist__poll(struct evlist *evlist, int timeout) -- 2.21.0
