intptr_t DefaultAssertionHandler(intptr_t /*userParameter*/, const char* title, const char* message)
{
if(OVRIsDebuggerPresent())
{
OVR_DEBUG_BREAK;
}
else
{
#if defined(OVR_BUILD_DEBUG)
// Print a stack trace of all threads.
OVR::String s;
OVR::String threadListOutput;
static OVR::SymbolLookup symbolLookup;
s = "Failure: ";
s += message;
if(symbolLookup.Initialize() && symbolLookup.ReportThreadCallstack(threadListOutput, 4)) // This '4' is there to skip our internal handling and retrieve starting at the assertion location (our caller) only.
{
s += "\r\n\r\n";
s += threadListOutput;
}
OVR::Util::DisplayMessageBox(title, s.ToCStr());
#else
OVR::Util::DisplayMessageBox(title, message);
#endif
}
return 0;
}
intptr_t DefaultAssertionHandler(intptr_t /*userParameter*/, const char* title, const char* message)
{
if(OVRIsDebuggerPresent())
{
OVR_DEBUG_BREAK;
}
else
{
OVR_UNUSED(title);
OVR_UNUSED(message);
#if defined(OVR_BUILD_DEBUG)
if(Allocator::GetInstance()) // The code below currently depends on having a valid Allocator.
{
// Print a stack trace of all threads.
OVR::String s;
OVR::String threadListOutput;
static OVR::SymbolLookup symbolLookup;
s = "Failure: ";
s += message;
if(symbolLookup.Initialize() && symbolLookup.ReportThreadCallstack(threadListOutput, 4)) // This '4' is there to skip our internal handling and retrieve starting at the assertion location (our caller) only.
{
// threadListOutput has newlines that are merely \n, whereas Windows MessageBox wants \r\n newlines. So we insert \r in front of all \n.
for(size_t i = 0, iEnd = threadListOutput.GetSize(); i < iEnd; i++)
{
if(threadListOutput[i] == '\n')
{
threadListOutput.Insert("\r", i, 1);
++i;
++iEnd;
}
}
s += "\r\n\r\n";
s += threadListOutput;
}
OVR::Util::DisplayMessageBox(title, s.ToCStr());
}
else
{
OVR::Util::DisplayMessageBox(title, message);
}
#else
OVR::Util::DisplayMessageBox(title, message);
#endif
}
return 0;
}
int WatchDogObserver::Run()
{
OVR_DEBUG_LOG(("[WatchDogObserver] Starting"));
SetThreadName("WatchDog");
while (!TerminationEvent.Wait(WakeupInterval))
{
Lock::Locker locker(&ListLock);
const uint32_t t1 = GetFastMsTime();
const int count = DogList.GetSizeI();
for (int i = 0; i < count; ++i)
{
WatchDog* dog = DogList[i];
const int threshold = dog->ThreshholdMilliseconds;
const uint32_t t0 = dog->WhenLastFedMilliseconds;
// If threshold exceeded, assume there is thread deadlock of some sort.
int delta = (int)(t1 - t0);
if (delta > threshold)
{
// Expected behavior:
// SingleProcessDebug, SingleProcessRelease, Debug: This is only ever done for internal testing, so we don't want it to trigger the deadlock termination.
// Release: This is our release configuration where we want it to terminate itself.
// Print a stack trace of all threads if there's no debugger present.
const bool debuggerPresent = OVRIsDebuggerPresent();
LogError("{ERR-027} [WatchDogObserver] Deadlock detected: %s", dog->ThreadName.ToCStr());
if (!debuggerPresent) // We don't print threads if a debugger is present because otherwise every time the developer paused the app to debug, it would spit out a long thread trace upon resuming.
{
if (SymbolLookup::Initialize())
{
// symbolLookup is static here to avoid putting 32 KB on the stack
// and potentially overflowing the stack. This function is only ever
// run by one thread so it should be safe.
static SymbolLookup symbolLookup;
String threadListOutput, moduleListOutput;
symbolLookup.ReportThreadCallstacks(threadListOutput);
symbolLookup.ReportModuleInformation(moduleListOutput);
LogError("---DEADLOCK STATE---\n\n%s\n\n%s\n---END OF DEADLOCK STATE---", threadListOutput.ToCStr(), moduleListOutput.ToCStr());
}
if (IsReporting)
{
ExceptionHandler::ReportDeadlock(DogList[i]->ThreadName, OrganizationName , ApplicationName);
// Disable reporting after the first deadlock report.
IsReporting = false;
}
}
if (IsExitingOnDeadlock())
{
OVR_ASSERT_M(false, "Watchdog detected a deadlock. Exiting the process."); // This won't have an effect unless asserts are enabled in release builds.
OVR::ExitProcess(-1);
}
}
}
}
OVR_DEBUG_LOG(("[WatchDogObserver] Good night"));
return 0;
}
