Messages in this thread Patch in this message | | | From | Alexey Bayduraev <> | Subject | [PATCH v12 04/16] perf record: Introduce function to propagate control commands | Date | Tue, 23 Nov 2021 17:08:00 +0300 |
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Introduce evlist__ctlfd_update() function to propagate external control commands to global evlist object.
Acked-by: Andi Kleen <ak@linux.intel.com> Acked-by: Namhyung Kim <namhyung@gmail.com> Reviewed-by: Riccardo Mancini <rickyman7@gmail.com> Tested-by: Riccardo Mancini <rickyman7@gmail.com> Signed-off-by: Alexey Bayduraev <alexey.v.bayduraev@linux.intel.com> --- tools/perf/util/evlist.c | 16 ++++++++++++++++ tools/perf/util/evlist.h | 1 + 2 files changed, 17 insertions(+)
diff --git a/tools/perf/util/evlist.c b/tools/perf/util/evlist.c index 5f92319ce258..da0664bd98b5 100644 --- a/tools/perf/util/evlist.c +++ b/tools/perf/util/evlist.c @@ -2115,6 +2115,22 @@ int evlist__ctlfd_process(struct evlist *evlist, enum evlist_ctl_cmd *cmd) return err; } +int evlist__ctlfd_update(struct evlist *evlist, struct pollfd *update) +{ + int ctlfd_pos = evlist->ctl_fd.pos; + struct pollfd *entries = evlist->core.pollfd.entries; + + if (!evlist__ctlfd_initialized(evlist)) + return 0; + + if (entries[ctlfd_pos].fd != update->fd || + entries[ctlfd_pos].events != update->events) + return -1; + + entries[ctlfd_pos].revents = update->revents; + return 0; +} + struct evsel *evlist__find_evsel(struct evlist *evlist, int idx) { struct evsel *evsel; diff --git a/tools/perf/util/evlist.h b/tools/perf/util/evlist.h index 97bfb8d0be4f..2a1fd2c3d5a1 100644 --- a/tools/perf/util/evlist.h +++ b/tools/perf/util/evlist.h @@ -372,6 +372,7 @@ void evlist__close_control(int ctl_fd, int ctl_fd_ack, bool *ctl_fd_close); int evlist__initialize_ctlfd(struct evlist *evlist, int ctl_fd, int ctl_fd_ack); int evlist__finalize_ctlfd(struct evlist *evlist); bool evlist__ctlfd_initialized(struct evlist *evlist); +int evlist__ctlfd_update(struct evlist *evlist, struct pollfd *update); int evlist__ctlfd_process(struct evlist *evlist, enum evlist_ctl_cmd *cmd); int evlist__ctlfd_ack(struct evlist *evlist); -- 2.19.0
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