From 9cc614d096db4b7c1de6baaa055ca6f741aa4370 Mon Sep 17 00:00:00 2001
From: vaxerski <43317083+vaxerski@users.noreply.github.com>
Date: Fri, 29 Sep 2023 16:38:13 +0100
Subject: internal: add a watchdog

a watchdog will abort processing a signal if a timeout specified via debug:watchdog_timeout is reached.
---
 src/Compositor.cpp | 11 +++++++++++
 1 file changed, 11 insertions(+)

(limited to 'src/Compositor.cpp')

diff --git a/src/Compositor.cpp b/src/Compositor.cpp
index 1cb378db..e114e934 100644
--- a/src/Compositor.cpp
+++ b/src/Compositor.cpp
@@ -34,6 +34,13 @@ void handleUnrecoverableSignal(int sig) {
     abort();
 }
 
+void handleUserSignal(int sig) {
+    if (sig == SIGUSR1) {
+        // means we have to unwind a timed out event
+        throw std::exception();
+    }
+}
+
 CCompositor::CCompositor() {
     m_iHyprlandPID = getpid();
 
@@ -70,6 +77,8 @@ CCompositor::CCompositor() {
     setRandomSplash();
 
     Debug::log(LOG, "\nCurrent splash: {}\n\n", m_szCurrentSplash);
+
+    g_pWatchdog = std::make_unique<CWatchdog>();
 }
 
 CCompositor::~CCompositor() {
@@ -92,6 +101,7 @@ CCompositor::~CCompositor() {
     g_pAnimationManager.reset();
     g_pKeybindManager.reset();
     g_pHookSystem.reset();
+    g_pWatchdog.reset();
 }
 
 void CCompositor::setRandomSplash() {
@@ -112,6 +122,7 @@ void CCompositor::initServer() {
     wl_event_loop_add_signal(m_sWLEventLoop, SIGTERM, handleCritSignal, nullptr);
     signal(SIGSEGV, handleUnrecoverableSignal);
     signal(SIGABRT, handleUnrecoverableSignal);
+    signal(SIGUSR1, handleUserSignal);
     //wl_event_loop_add_signal(m_sWLEventLoop, SIGINT, handleCritSignal, nullptr);
 
     initManagers(STAGE_PRIORITY);
-- 
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