const char* ExceptionBase::what() const noexcept
{
if (!m_what.empty())
return m_what.c_str();
if(m_sysErrno != 0)
m_what = format("[{execptionName}], msg:[{m_msg}], file:[{m_file}+{m_line}], fun:[{m_func}], errno:[{m_sysErrno} {strerr}]",
exceptionName(), m_msg, m_file, m_line, m_func, m_sysErrno, ::strerror(m_sysErrno));
else
m_what = format("[{execptionName}], msg:[{m_msg}], file:[{m_file}+{m_line}], fun:[{m_func}]",
exceptionName(), m_msg, m_file, m_line, m_func);
return m_what.c_str();
}
LONG WINAPI onUnhandledException(EXCEPTION_POINTERS* exception)
{
logGlobal->errorStream() << "Disaster happened.";
PEXCEPTION_RECORD einfo = exception->ExceptionRecord;
logGlobal->errorStream() << "Reason: 0x" << std::hex << einfo->ExceptionCode << " - " << exceptionName(einfo->ExceptionCode)
<< " at " << std::setfill('0') << std::setw(4) << exception->ContextRecord->SegCs << ":" << (void*)einfo->ExceptionAddress;
if (einfo->ExceptionCode == EXCEPTION_ACCESS_VIOLATION)
{
logGlobal->errorStream() << "Attempt to " << (einfo->ExceptionInformation[0] == 1 ? "write to " : "read from ")
<< "0x" << std::setw(8) << (void*)einfo->ExceptionInformation[1];
}
const DWORD threadId = ::GetCurrentThreadId();
logGlobal->errorStream() << "Thread ID: " << threadId << " [" << std::dec << std::setw(0) << threadId << "]";
#ifndef __MINGW32__
//exception info to be placed in the dump
MINIDUMP_EXCEPTION_INFORMATION meinfo = {threadId, exception, TRUE};
//create file where dump will be placed
char *mname = nullptr;
char buffer[MAX_PATH + 1];
HMODULE hModule = nullptr;
GetModuleFileNameA(hModule, buffer, MAX_PATH);
mname = strrchr(buffer, '\\');
if (mname != 0)
mname++;
else
mname = buffer;
strcat(mname, "_crashinfo.dmp");
HANDLE dfile = CreateFileA(mname, GENERIC_READ|GENERIC_WRITE, FILE_SHARE_WRITE|FILE_SHARE_READ, 0, CREATE_ALWAYS, 0, 0);
logGlobal->errorStream() << "Crash info will be put in " << mname;
MiniDumpWriteDump(GetCurrentProcess(), GetCurrentProcessId(), dfile, MiniDumpWithDataSegs, &meinfo, 0, 0);
#endif
MessageBoxA(0, "VCMI has crashed. We are sorry. File with information about encountered problem has been created.", "VCMI Crashhandler", MB_OK | MB_ICONERROR);
return EXCEPTION_EXECUTE_HANDLER;
}
