diff options
Diffstat (limited to 'indra/llcommon')
| -rw-r--r-- | indra/llcommon/llthread.cpp | 105 | ||||
| -rw-r--r-- | indra/llcommon/llthread.h | 7 | ||||
| -rw-r--r-- | indra/llcommon/workqueue.cpp | 24 |
3 files changed, 113 insertions, 23 deletions
diff --git a/indra/llcommon/llthread.cpp b/indra/llcommon/llthread.cpp index e5d25b52f0..692941a892 100644 --- a/indra/llcommon/llthread.cpp +++ b/indra/llcommon/llthread.cpp @@ -28,6 +28,7 @@ #include "apr_portable.h" +#include "llapp.h" #include "llthread.h" #include "llmutex.h" @@ -35,6 +36,7 @@ #include "lltrace.h" #include "lltracethreadrecorder.h" #include "llexception.h" +#include "workqueue.h" #if LL_LINUX #include <sched.h> @@ -106,6 +108,27 @@ namespace return s_thread_id; } +#if LL_WINDOWS + + static const U32 STATUS_MSC_EXCEPTION = 0xE06D7363; // compiler specific + + U32 exception_filter(U32 code, struct _EXCEPTION_POINTERS* exception_infop) + { + if (LLApp::instance()->reportCrashToBugsplat((void*)exception_infop)) + { + // Handled + return EXCEPTION_CONTINUE_SEARCH; + } + else if (code == STATUS_MSC_EXCEPTION) + { + // C++ exception, go on + return EXCEPTION_CONTINUE_SEARCH; + } + + // handle it, convert to std::exception + return EXCEPTION_EXECUTE_HANDLER; + } +#endif // LL_WINDOWS } // anonymous namespace LL_COMMON_API bool on_main_thread() @@ -157,20 +180,11 @@ void LLThread::threadRun() // Run the user supplied function do { - try - { - run(); - } - catch (const LLContinueError &e) - { - LL_WARNS("THREAD") << "ContinueException on thread '" << mName << - "' reentering run(). Error what is: '" << e.what() << "'" << LL_ENDL; - //output possible call stacks to log file. - LLError::LLCallStacks::print(); - - LOG_UNHANDLED_EXCEPTION("LLThread"); - continue; - } +#ifdef LL_WINDOWS + sehHandle(); // Structured Exception Handling +#else + tryRun(); +#endif break; } while (true); @@ -188,6 +202,69 @@ void LLThread::threadRun() mStatus = STOPPED; } +void LLThread::tryRun() +{ + try + { + run(); + } + catch (const LLContinueError& e) + { + LL_WARNS("THREAD") << "ContinueException on thread '" << mName << + "'. Error what is: '" << e.what() << "'" << LL_ENDL; + LLError::LLCallStacks::print(); + + LOG_UNHANDLED_EXCEPTION("LLThread"); + } + catch (std::bad_alloc&) + { + // Todo: improve this, this is going to have a different callstack + // instead of showing where it crashed + LL_WARNS("THREAD") << "Out of memory in a thread: " << mName << LL_ENDL; + + LL::WorkQueue::ptr_t main_queue = LL::WorkQueue::getInstance("mainloop"); + main_queue->post( + // Bind the current exception, rethrow it in main loop. + []() { + LLError::LLUserWarningMsg::showOutOfMemory(); + LL_ERRS("THREAD") << "Out of memory in a thread" << LL_ENDL; + }); + } +#ifndef LL_WINDOWS + catch (...) + { + // Stash any other kind of uncaught exception to be rethrown by main thread. + LL_WARNS("THREAD") << "Capturing and rethrowing uncaught exception in LLThread " + << mName << LL_ENDL; + + LL::WorkQueue::ptr_t main_queue = LL::WorkQueue::getInstance("mainloop"); + main_queue->post( + // Bind the current exception, rethrow it in main loop. + [exc = std::current_exception()]() { std::rethrow_exception(exc); }); + } +#endif // else LL_WINDOWS +} + +#ifdef LL_WINDOWS +void LLThread::sehHandle() +{ + __try + { + // handle stop and continue exceptions first + tryRun(); + } + __except (exception_filter(GetExceptionCode(), GetExceptionInformation())) + { + // convert to C++ styled exception + // Note: it might be better to use _se_set_translator + // if you want exception to inherit full callstack + char integer_string[512]; + sprintf(integer_string, "SEH, code: %lu\n", GetExceptionCode()); + throw std::exception(integer_string); + } +} +#endif + LLThread::LLThread(const std::string& name, apr_pool_t *poolp) : mPaused(false), mName(name), diff --git a/indra/llcommon/llthread.h b/indra/llcommon/llthread.h index 4194e0014d..8794ac93aa 100644 --- a/indra/llcommon/llthread.h +++ b/indra/llcommon/llthread.h @@ -68,7 +68,7 @@ public: // Called from MAIN THREAD. void pause(); void unpause(); - bool isPaused() { return isStopped() || mPaused; } + bool isPaused() const { return isStopped() || mPaused; } // Cause the thread to wake up and check its condition void wake(); @@ -97,6 +97,11 @@ private: // static function passed to APR thread creation routine void threadRun(); + void tryRun(); + +#ifdef LL_WINDOWS + void sehHandle(); +#endif protected: std::string mName; diff --git a/indra/llcommon/workqueue.cpp b/indra/llcommon/workqueue.cpp index 0eb20323ad..7efaebd569 100644 --- a/indra/llcommon/workqueue.cpp +++ b/indra/llcommon/workqueue.cpp @@ -210,14 +210,22 @@ void LL::WorkQueueBase::callWork(const Work& work) } catch (...) { - // Stash any other kind of uncaught exception to be rethrown by main thread. - LL_WARNS("LLCoros") << "Capturing and rethrowing uncaught exception in WorkQueueBase " - << getKey() << LL_ENDL; - - LL::WorkQueue::ptr_t main_queue = LL::WorkQueue::getInstance("mainloop"); - main_queue->post( - // Bind the current exception, rethrow it in main loop. - [exc = std::current_exception()]() { std::rethrow_exception(exc); }); + if (getKey() != "mainloop") + { + // Stash any other kind of uncaught exception to be rethrown by main thread. + LL_WARNS("LLCoros") << "Capturing and rethrowing uncaught exception in WorkQueueBase " + << getKey() << LL_ENDL; + + LL::WorkQueue::ptr_t main_queue = LL::WorkQueue::getInstance("mainloop"); + main_queue->post( + // Bind the current exception, rethrow it in main loop. + [exc = std::current_exception()]() { std::rethrow_exception(exc); }); + } + else + { + // let main loop crash + throw; + } } #endif // else LL_WINDOWS } |