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Merge "ShellSubscriber: install SIGPIPE handler" into rvc-dev

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This commit is contained in:
Ruchir Rastogi
2020-04-16 17:34:16 +00:00
committed by Android (Google) Code Review
parent c979a6eb22 04d75c37ba
commit 9d411d7d8e
1 changed files with 13 additions and 6 deletions
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19
cmds/statsd/src/main.cpp
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@@ -38,20 +38,27 @@ using std::make_shared;
shared_ptr<StatsService> gStatsService = nullptr;
void sigHandler(int sig) {
if (gStatsService != nullptr) {
gStatsService->Terminate();
void signalHandler(int sig) {
if (sig == SIGPIPE) {
// ShellSubscriber uses SIGPIPE as a signal to detect the end of the
// client process. Don't prematurely exit(1) here. Instead, ignore the
// signal and allow the write call to return EPIPE.
ALOGI("statsd received SIGPIPE. Ignoring signal.");
return;
}
if (gStatsService != nullptr) gStatsService->Terminate();
ALOGW("statsd terminated on receiving signal %d.", sig);
exit(1);
}
void registerSigHandler()
void registerSignalHandlers()
{
struct sigaction sa;
sigemptyset(&sa.sa_mask);
sa.sa_flags = 0;
sa.sa_handler = sigHandler;
sa.sa_handler = signalHandler;
sigaction(SIGPIPE, &sa, nullptr);
sigaction(SIGHUP, &sa, nullptr);
sigaction(SIGINT, &sa, nullptr);
sigaction(SIGQUIT, &sa, nullptr);
@@ -79,7 +86,7 @@ int main(int /*argc*/, char** /*argv*/) {
return -1;
}
registerSigHandler();
registerSignalHandlers();
gStatsService->sayHiToStatsCompanion();