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core: terminate the poll thread (#150)

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* core: terminate the poll thread

* core: use sigaction instead of signal

* core: use VA_RESTART for the unlock signal
This commit is contained in:
Maximilian Seidler 2024-03-08 23:54:34 +01:00 committed by GitHub
parent b4a1c8ccbb
commit 5eaa7c0834
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GPG key ID: B5690EEEBB952194
1 changed files with 21 additions and 6 deletions
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23
src/core/hyprlock.cpp
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@ -292,6 +292,14 @@ void CHyprlock::onGlobalRemoved(void* data, struct wl_registry* registry, uint32
// end wl_registry
static void registerSignalAction(int sig, void (*handler)(int), int sa_flags = 0) {
struct sigaction sa;
sa.sa_handler = handler;
sigemptyset(&sa.sa_mask);
sa.sa_flags = sa_flags;
sigaction(sig, &sa, NULL);
}
static void handleUnlockSignal(int sig) {
if (sig == SIGUSR1) {
Debug::log(LOG, "Unlocking with a SIGUSR1");
@ -299,6 +307,10 @@ static void handleUnlockSignal(int sig) {
}
}
static void handlePollTerminate(int sig) {
;
}
static void handleCriticalSignal(int sig) {
g_pHyprlock->attemptRestoreOnDeath();
abort();
@ -342,9 +354,10 @@ void CHyprlock::run() {
lockSession();
signal(SIGUSR1, handleUnlockSignal);
signal(SIGSEGV, handleCriticalSignal);
signal(SIGABRT, handleCriticalSignal);
registerSignalAction(SIGUSR1, handleUnlockSignal, SA_RESTART);
registerSignalAction(SIGUSR2, handlePollTerminate);
registerSignalAction(SIGSEGV, handleCriticalSignal);
registerSignalAction(SIGABRT, handleCriticalSignal);
pollfd pollfds[] = {
{
@ -355,7 +368,7 @@ void CHyprlock::run() {
std::thread pollThr([this, &pollfds]() {
while (!m_bTerminate) {
int ret = poll(pollfds, 1, 5000 /* 5 seconds, reasonable. It's because we might need to terminate */);
int ret = poll(pollfds, 1, 5000 /* 5 seconds, reasonable. Just in case we need to terminate and the signal fails */);
if (ret < 0) {
Debug::log(CRIT, "[core] Polling fds failed with {}", errno);
@ -477,6 +490,8 @@ void CHyprlock::run() {
wl_display_disconnect(m_sWaylandState.display);
pthread_kill(pollThr.native_handle(), SIGUSR2);
// wait for threads to exit cleanly to avoid a coredump
pollThr.join();
timersThr.join();