Add flags to bypass any scheduler changes.
Not everyone has permission to lock memory, renice, and use the realtime
scheduler. It is still useful to be able to run applications without
these permissions. Add flags to enable this.
Change-Id: Ib9f02367479c22f646d5bbf7f417a37c80504f71
diff --git a/aos/events/logging/logger_main.cc b/aos/events/logging/logger_main.cc
index f6ec4d6..a05c06f 100644
--- a/aos/events/logging/logger_main.cc
+++ b/aos/events/logging/logger_main.cc
@@ -11,6 +11,10 @@
DEFINE_string(config, "config.json", "Config file to use.");
+DEFINE_bool(skip_renicing, false,
+ "If true, skip renicing the logger. This leaves it lower priority "
+ "and increases the likelihood of dropping messages and crashing.");
+
int main(int argc, char *argv[]) {
gflags::SetUsageMessage(
"This program provides a simple logger binary that logs all SHMEM data "
@@ -37,9 +41,15 @@
aos::logger::Logger logger(&event_loop);
event_loop.OnRun([&log_namer, &logger]() {
- errno = 0;
- setpriority(PRIO_PROCESS, 0, -20);
- PCHECK(errno == 0) << ": Renicing to -20 failed";
+ if (FLAGS_skip_renicing) {
+ LOG(WARNING) << "Ignoring request to renice to -20 due to "
+ "--skip_renicing.";
+ } else {
+ errno = 0;
+ setpriority(PRIO_PROCESS, 0, -20);
+ PCHECK(errno == 0)
+ << ": Renicing to -20 failed, use --skip_renicing to skip renicing.";
+ }
logger.StartLogging(std::move(log_namer));
});