fix possible segfault by realloc

src/config/ConfigManager.cpp

@@ -1054,10 +1054,19 @@ void CConfigManager::dispatchExecOnce() {
 }
 
 void CConfigManager::performMonitorReload() {
+
+    bool overAgain = false;
+
     for (auto& m : g_pCompositor->m_vMonitors) {
         auto rule = getMonitorRuleFor(m->szName);
-        g_pHyprRenderer->applyMonitorRule(m.get(), &rule);
+        if (!g_pHyprRenderer->applyMonitorRule(m.get(), &rule)) {
+            overAgain = true;
+            break;
         }
+    }
+
+    if (overAgain)
+        performMonitorReload();
 
     m_bWantsMonitorReload = false;
 }

src/managers/KeybindManager.cpp

@@ -894,12 +894,20 @@ void CKeybindManager::toggleSpecialWorkspace(std::string args) {
 }
 
 void CKeybindManager::forceRendererReload(std::string args) {
+    bool overAgain = false;
+
     for (auto& m : g_pCompositor->m_vMonitors) {
         auto rule = g_pConfigManager->getMonitorRuleFor(m->szName);
-        g_pHyprRenderer->applyMonitorRule(m.get(), &rule, true);
+        if (!g_pHyprRenderer->applyMonitorRule(m.get(), &rule, true)) {
+            overAgain = true;
+            break;
         }
     }
 
+    if (overAgain)
+        forceRendererReload(args);
+}
+
 void CKeybindManager::resizeActive(std::string args) {
     if (args.find_first_of(' ') == std::string::npos)
         return;

src/render/Renderer.cpp

@@ -643,7 +643,7 @@ DAMAGETRACKINGMODES CHyprRenderer::damageTrackingModeFromStr(const std::string&
     return DAMAGE_TRACKING_INVALID;
 }
 
-void CHyprRenderer::applyMonitorRule(SMonitor* pMonitor, SMonitorRule* pMonitorRule, bool force) {
+bool CHyprRenderer::applyMonitorRule(SMonitor* pMonitor, SMonitorRule* pMonitorRule, bool force) {
 
     Debug::log(LOG, "Applying monitor rule for %s", pMonitor->szName.c_str());
 
@@ -653,13 +653,13 @@ void CHyprRenderer::applyMonitorRule(SMonitor* pMonitor, SMonitorRule* pMonitorR
         wlr_output_commit(pMonitor->output);
 
         Events::listener_monitorDestroy(nullptr, pMonitor->output);
-        return;
+        return false;
     }
 
     // Check if the rule isn't already applied
     if (!force && DELTALESSTHAN(pMonitor->vecPixelSize.x, pMonitorRule->resolution.x, 1) && DELTALESSTHAN(pMonitor->vecPixelSize.y, pMonitorRule->resolution.y, 1) && DELTALESSTHAN(pMonitor->refreshRate, pMonitorRule->refreshRate, 1) && pMonitor->scale == pMonitorRule->scale && DELTALESSTHAN(pMonitor->vecPosition.x, pMonitorRule->offset.x, 1) && DELTALESSTHAN(pMonitor->vecPosition.y, pMonitorRule->offset.y, 1) && pMonitor->transform == pMonitorRule->transform) {
         Debug::log(LOG, "Not applying a new rule to %s because it's already applied!", pMonitor->szName.c_str());
-        return;
+        return true;
     }
 
     wlr_output_set_scale(pMonitor->output, pMonitorRule->scale);
@@ -709,7 +709,7 @@ void CHyprRenderer::applyMonitorRule(SMonitor* pMonitor, SMonitorRule* pMonitorR
                 if (!PREFERREDMODE) {
                     Debug::log(ERR, "Monitor %s has NO PREFERRED MODE, and an INVALID one was requested: %ix%i@%2f",
                                (int)pMonitorRule->resolution.x, (int)pMonitorRule->resolution.y, (float)pMonitorRule->refreshRate);
-                    return;
+                    return true;
                 }
 
                 // Preferred is valid
@@ -740,7 +740,7 @@ void CHyprRenderer::applyMonitorRule(SMonitor* pMonitor, SMonitorRule* pMonitorR
 
     if (!wlr_output_commit(pMonitor->output)) {
         Debug::log(ERR, "Couldn't commit output named %s", pMonitor->output->name);
-        return;
+        return true;
     }
 
     int x, y;
@@ -762,6 +762,8 @@ void CHyprRenderer::applyMonitorRule(SMonitor* pMonitor, SMonitorRule* pMonitorR
 
     // frame skip
     pMonitor->framesToSkip = 1;
+
+    return true;
 }
 
 void CHyprRenderer::ensureCursorRenderingMode() {

src/render/Renderer.hpp

@@ -28,7 +28,7 @@ public:
     void                damageBox(wlr_box*);
     void                damageBox(const int& x, const int& y, const int& w, const int& h);
     void                damageMonitor(SMonitor*);
-    void                applyMonitorRule(SMonitor*, SMonitorRule*, bool force = false);
+    bool                applyMonitorRule(SMonitor*, SMonitorRule*, bool force = false);
     bool                shouldRenderWindow(CWindow*, SMonitor*);
     bool                shouldRenderWindow(CWindow*);
     void                ensureCursorRenderingMode();