Adding callback function to reader object so callers can process data in different ways.
Link: http://lkml.kernel.org/n/tip-8g1islzz6xkl36tz0z1nk...@git.kernel.org Signed-off-by: Jiri Olsa <jo...@kernel.org> --- tools/perf/util/session.c | 23 +++++++++++++++++++---- 1 file changed, 19 insertions(+), 4 deletions(-) diff --git a/tools/perf/util/session.c b/tools/perf/util/session.c index de777bdc0ed3..0ec34227bd60 100644 --- a/tools/perf/util/session.c +++ b/tools/perf/util/session.c @@ -1847,10 +1847,17 @@ fetch_mmaped_event(struct perf_session *session, #define NUM_MMAPS 128 #endif +struct reader; + +typedef s64 (*reader_cb_t)(struct perf_session *session, + union perf_event *event, + u64 file_offset); + struct reader { - int fd; - u64 data_size; - u64 data_offset; + int fd; + u64 data_size; + u64 data_offset; + reader_cb_t process; }; static int @@ -1921,7 +1928,7 @@ reader__process_events(struct reader *rd, struct perf_session *session, size = event->header.size; if (size < sizeof(struct perf_event_header) || - (skip = perf_session__process_event(session, event, file_pos)) < 0) { + (skip = rd->process(session, event, file_pos)) < 0) { pr_err("%#" PRIx64 " [%#x]: failed to process type: %d\n", file_offset + head, event->header.size, event->header.type); @@ -1947,12 +1954,20 @@ reader__process_events(struct reader *rd, struct perf_session *session, return err; } +static s64 process_simple(struct perf_session *session, + union perf_event *event, + u64 file_offset) +{ + return perf_session__process_event(session, event, file_offset); +} + static int __perf_session__process_events(struct perf_session *session) { struct reader rd = { .fd = perf_data__fd(session->data), .data_size = session->header.data_size, .data_offset = session->header.data_offset, + .process = process_simple, }; struct ordered_events *oe = &session->ordered_events; struct perf_tool *tool = session->tool; -- 2.17.2
