Method setError

3rdparty/openal/al/error.cpp:50–93

bool TrapALError{false};

void ALCcontext::setError(ALenum errorCode, const char *msg, ...)
{
    auto message = al::vector<char>(256);

    va_list args, args2;
    va_start(args, msg);
    va_copy(args2, args);
    int msglen{std::vsnprintf(message.data(), message.size(), msg, args)};
    if(msglen >= 0 && static_cast<size_t>(msglen) >= message.size())
    {
        message.resize(static_cast<size_t>(msglen) + 1u);
        msglen = std::vsnprintf(message.data(), message.size(), msg, args2);
    }
    va_end(args2);
    va_end(args);

    if(msglen >= 0) msg = message.data();
    else msg = "<internal error constructing message>";
    msglen = static_cast<int>(strlen(msg));

    WARN("Error generated on context %p, code 0x%04x, \"%s\"\n",
        decltype(std::declval<void*>()){this}, errorCode, msg);
    if(TrapALError)
    {
#ifdef _WIN32
        /* DebugBreak will cause an exception if there is no debugger */
        if(IsDebuggerPresent())
            DebugBreak();
#elif defined(SIGTRAP)
        raise(SIGTRAP);
#endif
    }

    ALenum curerr{AL_NO_ERROR};
    mLastError.compare_exchange_strong(curerr, errorCode);
    if((mEnabledEvts.load(std::memory_order_relaxed)&EventType_Error))
    {
        std::lock_guard<std::mutex> _{mEventCbLock};
        ALbitfieldSOFT enabledevts{mEnabledEvts.load(std::memory_order_relaxed)};
        if((enabledevts&EventType_Error) && mEventCb)
            (*mEventCb)(AL_EVENT_TYPE_ERROR_SOFT, 0, static_cast<ALuint>(errorCode), msglen, msg,
                mEventParam);
    }
}

AL_API ALenum AL_APIENTRY alGetError(void)
START_API_FUNC