Function VectoredHandler

wrappers/glmemshadow.cpp:101–125

#ifdef _WIN32
static LONG CALLBACK
VectoredHandler(PEXCEPTION_POINTERS pExceptionInfo)
{
    PEXCEPTION_RECORD pExceptionRecord = pExceptionInfo->ExceptionRecord;
    DWORD ExceptionCode = pExceptionRecord->ExceptionCode;

    if (ExceptionCode == EXCEPTION_ACCESS_VIOLATION &&
        pExceptionRecord->NumberParameters >= 2 &&
        pExceptionRecord->ExceptionInformation[0] == 1) { // writing

        const uintptr_t addr = static_cast<uintptr_t>(pExceptionRecord->ExceptionInformation[1]);
        const size_t page = addr / sPageSize;

        std::unique_lock<std::mutex> lock(mutex);

        const auto it = sPages.find(page);
        if (it != sPages.end()) {
            GLMemoryShadow *shadow = it->second;
            shadow->onAddressWrite(addr, page);
            return EXCEPTION_CONTINUE_EXECUTION;
        }
    }

    return EXCEPTION_CONTINUE_SEARCH;
}

#else