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core: fix data race and a unsigned int rollover (#7278)

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* keybindmgr: avoid uint rollover on mouse keycode

mouse keycode is 0, and the switch case checks for 0 - 8 and rolls over,
just return early if keycode is 0.

* watchdog: avoid data races in watchdog

asan thread sanitizer reported data races in the watchdog from reading
and setting the bool variables make them std::atomic bools. also add a
atomic bool for the main thread to wait for to avoid data race when
reading the config values.

* hyprdebug: change non unicode character to name

asan created false positives and didnt like this bit, so for the sake of
easier debugging rename it to something unicode.
This commit is contained in:
Tom Englund 2024-08-12 19:19:03 +02:00 committed by GitHub
parent d361fcbd85
commit 3fa6db1e7a
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GPG key ID: B5690EEEBB952194
7 changed files with 38 additions and 30 deletions
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4
src/Compositor.cpp
View file

@ -552,6 +552,10 @@ void CCompositor::initManagers(eManagersInitStage stage) {
g_pConfigManager->init();
g_pWatchdog = std::make_unique<CWatchdog>(); // requires config
// wait for watchdog to initialize to not hit data races in reading config values.
while (!g_pWatchdog->m_bWatchdogInitialized) {
std::this_thread::yield();
}
Debug::log(LOG, "Creating the PointerManager!");
g_pPointerManager = std::make_unique<CPointerManager>();

16
src/debug/HyprDebugOverlay.cpp
View file

@ -7,8 +7,8 @@ CHyprDebugOverlay::CHyprDebugOverlay() {
m_pTexture = makeShared<CTexture>();
}
void CHyprMonitorDebugOverlay::renderData(CMonitor* pMonitor, float µs) {
m_dLastRenderTimes.push_back(µs / 1000.f);
void CHyprMonitorDebugOverlay::renderData(CMonitor* pMonitor, float durationUs) {
m_dLastRenderTimes.push_back(durationUs / 1000.f);
if (m_dLastRenderTimes.size() > (long unsigned int)pMonitor->refreshRate)
m_dLastRenderTimes.pop_front();
@ -17,8 +17,8 @@ void CHyprMonitorDebugOverlay::renderData(CMonitor* pMonitor, float µs) {
m_pMonitor = pMonitor;
}
void CHyprMonitorDebugOverlay::renderDataNoOverlay(CMonitor* pMonitor, float µs) {
m_dLastRenderTimesNoOverlay.push_back(µs / 1000.f);
void CHyprMonitorDebugOverlay::renderDataNoOverlay(CMonitor* pMonitor, float durationUs) {
m_dLastRenderTimesNoOverlay.push_back(durationUs / 1000.f);
if (m_dLastRenderTimesNoOverlay.size() > (long unsigned int)pMonitor->refreshRate)
m_dLastRenderTimesNoOverlay.pop_front();
@ -188,12 +188,12 @@ int CHyprMonitorDebugOverlay::draw(int offset) {
return posY - offset;
}
void CHyprDebugOverlay::renderData(CMonitor* pMonitor, float µs) {
m_mMonitorOverlays[pMonitor].renderData(pMonitor, µs);
void CHyprDebugOverlay::renderData(CMonitor* pMonitor, float durationUs) {
m_mMonitorOverlays[pMonitor].renderData(pMonitor, durationUs);
}
void CHyprDebugOverlay::renderDataNoOverlay(CMonitor* pMonitor, float µs) {
m_mMonitorOverlays[pMonitor].renderDataNoOverlay(pMonitor, µs);
void CHyprDebugOverlay::renderDataNoOverlay(CMonitor* pMonitor, float durationUs) {
m_mMonitorOverlays[pMonitor].renderDataNoOverlay(pMonitor, durationUs);
}
void CHyprDebugOverlay::frameData(CMonitor* pMonitor) {

8
src/debug/HyprDebugOverlay.hpp
View file

@ -13,8 +13,8 @@ class CHyprMonitorDebugOverlay {
public:
int draw(int offset);
void renderData(CMonitor* pMonitor, float µs);
void renderDataNoOverlay(CMonitor* pMonitor, float µs);
void renderData(CMonitor* pMonitor, float durationUs);
void renderDataNoOverlay(CMonitor* pMonitor, float durationUs);
void frameData(CMonitor* pMonitor);
private:
@ -33,8 +33,8 @@ class CHyprDebugOverlay {
public:
CHyprDebugOverlay();
void draw();
void renderData(CMonitor*, float µs);
void renderDataNoOverlay(CMonitor*, float µs);
void renderData(CMonitor*, float durationUs);
void renderDataNoOverlay(CMonitor*, float durationUs);
void frameData(CMonitor*);
private:

11
src/helpers/Watchdog.cpp
View file

@ -18,15 +18,14 @@ CWatchdog::CWatchdog() {
m_pWatchdog = std::make_unique<std::thread>([this] {
static auto PTIMEOUT = CConfigValue<Hyprlang::INT>("debug:watchdog_timeout");
while (1337) {
std::unique_lock lk(m_mWatchdogMutex);
m_bWatchdogInitialized = true;
while (!m_bExitThread) {
std::unique_lock<std::mutex> lk(m_mWatchdogMutex);
if (!m_bWillWatch)
m_cvWatchdogCondition.wait(lk, [this] { return m_bNotified; });
else {
if (m_cvWatchdogCondition.wait_for(lk, std::chrono::milliseconds((int)(*PTIMEOUT * 1000.0)), [this] { return m_bNotified; }) == false)
m_cvWatchdogCondition.wait(lk, [this] { return m_bNotified || m_bExitThread; });
else if (m_cvWatchdogCondition.wait_for(lk, std::chrono::milliseconds((int)(*PTIMEOUT * 1000.0)), [this] { return m_bNotified || m_bExitThread; }) == false)
pthread_kill(m_iMainThreadPID, SIGUSR1);
}
if (m_bExitThread)
break;

10
src/helpers/Watchdog.hpp
View file

@ -14,18 +14,20 @@ class CWatchdog {
void startWatching();
void endWatching();
std::atomic<bool> m_bWatchdogInitialized{false};
private:
std::chrono::high_resolution_clock::time_point m_tTriggered;
pthread_t m_iMainThreadPID = 0;
bool m_bWatching = false;
bool m_bWillWatch = false;
std::atomic<bool> m_bWatching = false;
std::atomic<bool> m_bWillWatch = false;
std::unique_ptr<std::thread> m_pWatchdog;
std::mutex m_mWatchdogMutex;
bool m_bNotified = false;
bool m_bExitThread = false;
std::atomic<bool> m_bNotified = false;
std::atomic<bool> m_bExitThread = false;
std::condition_variable m_cvWatchdogCondition;
};

3
src/managers/KeybindManager.cpp
View file

@ -180,6 +180,9 @@ uint32_t CKeybindManager::stringToModMask(std::string mods) {
}
uint32_t CKeybindManager::keycodeToModifier(xkb_keycode_t keycode) {
if (keycode == 0)
return 0;
switch (keycode - 8) {
case KEY_LEFTMETA: return HL_MODIFIER_META;
case KEY_RIGHTMETA: return HL_MODIFIER_META;

10
src/render/Renderer.cpp
View file

@ -1395,15 +1395,15 @@ void CHyprRenderer::renderMonitor(CMonitor* pMonitor) {
pMonitor->pendingFrame = false;
const float µs = std::chrono::duration_cast<std::chrono::nanoseconds>(std::chrono::high_resolution_clock::now() - renderStart).count() / 1000.f;
g_pDebugOverlay->renderData(pMonitor, µs);
const float durationUs = std::chrono::duration_cast<std::chrono::nanoseconds>(std::chrono::high_resolution_clock::now() - renderStart).count() / 1000.f;
g_pDebugOverlay->renderData(pMonitor, durationUs);
if (*PDEBUGOVERLAY == 1) {
if (pMonitor == g_pCompositor->m_vMonitors.front().get()) {
const float µsNoOverlay = µs - std::chrono::duration_cast<std::chrono::nanoseconds>(endRenderOverlay - renderStartOverlay).count() / 1000.f;
g_pDebugOverlay->renderDataNoOverlay(pMonitor, µsNoOverlay);
const float noOverlayUs = durationUs - std::chrono::duration_cast<std::chrono::nanoseconds>(endRenderOverlay - renderStartOverlay).count() / 1000.f;
g_pDebugOverlay->renderDataNoOverlay(pMonitor, noOverlayUs);
} else {
g_pDebugOverlay->renderDataNoOverlay(pMonitor, µs);
g_pDebugOverlay->renderDataNoOverlay(pMonitor, durationUs);
}
}
}