Comment lack of return check on usleep
As the usleep calls used in thread_list are during shutdown and other
non-correctness related locations, add a comment to that effect.
Bug: 29527582
Test: make -j 50 test-art-host
Change-Id: I9c72564a13e28db6681b21d676a62f63ba052937
diff --git a/runtime/thread_list.cc b/runtime/thread_list.cc
index 88f1fc6..7c4a9ab 100644
--- a/runtime/thread_list.cc
+++ b/runtime/thread_list.cc
@@ -302,6 +302,8 @@
// Unlike suspending all threads where we can wait to acquire the mutator_lock_, suspending an
// individual thread requires polling. delay_us is the requested sleep wait. If delay_us is 0 then
// we use sched_yield instead of calling usleep.
+// Although there is the possibility, here and elsewhere, that usleep could return -1 and
+// errno = EINTR, there should be no problem if interrupted, so we do not check.
static void ThreadSuspendSleep(useconds_t delay_us) {
if (delay_us == 0) {
sched_yield();