[PATCH v5 02/13] perf evlist: introduce control file descriptors

[Alexey Budankov]

Define and initialize control file descriptors.

Signed-off-by: Alexey Budankov <alexey.budan...@linux.intel.com>
---
 tools/perf/util/evlist.c | 3 +++
 tools/perf/util/evlist.h | 5 +++++
 2 files changed, 8 insertions(+)

diff --git a/tools/perf/util/evlist.c b/tools/perf/util/evlist.c
index 173b4f0e0e6e..47541b5cab46 100644
--- a/tools/perf/util/evlist.c
+++ b/tools/perf/util/evlist.c
@@ -63,6 +63,9 @@ void evlist__init(struct evlist *evlist, struct perf_cpu_map 
*cpus,
        perf_evlist__set_maps(&evlist->core, cpus, threads);
        evlist->workload.pid = -1;
        evlist->bkw_mmap_state = BKW_MMAP_NOTREADY;
+       evlist->ctl_fd.fd = -1;
+       evlist->ctl_fd.ack = -1;
+       evlist->ctl_fd.pos = -1;
 }
 
 struct evlist *evlist__new(void)
diff --git a/tools/perf/util/evlist.h b/tools/perf/util/evlist.h
index b6f325dfb4d2..0d8b361f1c8e 100644
--- a/tools/perf/util/evlist.h
+++ b/tools/perf/util/evlist.h
@@ -74,6 +74,11 @@ struct evlist {
                pthread_t               th;
                volatile int            done;
        } thread;
+       struct {
+               int     fd;
+               int     ack;
+               int     pos;
+       } ctl_fd;
 };
 
 struct evsel_str_handler {
-- 
2.24.1