618 … otSysMainloopContext *context        = reinterpret_cast<otSysMainloopContext *>(aMainloopContext);  in UpdateFdSet()  local
620     assert(context != nullptr);  in UpdateFdSet()
631         if (context->mMaxFd < mIntGpioValueFd)  in UpdateFdSet()
633             context->mMaxFd = mIntGpioValueFd;  in UpdateFdSet()
647             FD_SET(mIntGpioValueFd, &context->mReadFdSet);  in UpdateFdSet()
707     if (timercmp(&timeout, &context->mTimeout, <))  in UpdateFdSet()
709         context->mTimeout = timeout;  in UpdateFdSet()
715 …const otSysMainloopContext *context = reinterpret_cast<const otSysMainloopContext *>(aMainloopCont…  in Process()  local
717     assert(context != nullptr);  in Process()
719     if (FD_ISSET(mIntGpioValueFd, &context->mReadFdSet))  in Process()
747         otSysMainloopContext context;  in WaitForFrame()  local
750         context.mMaxFd           = -1;  in WaitForFrame()
751         context.mTimeout.tv_sec  = static_cast<time_t>((end - now) / OT_US_PER_S);  in WaitForFrame()
752         context.mTimeout.tv_usec = static_cast<suseconds_t>((end - now) % OT_US_PER_S);  in WaitForFrame()
754         FD_ZERO(&context.mReadFdSet);  in WaitForFrame()
755         FD_ZERO(&context.mWriteFdSet);  in WaitForFrame()
757         UpdateFdSet(&context);  in WaitForFrame()
759 …ret = select(context.mMaxFd + 1, &context.mReadFdSet, &context.mWriteFdSet, nullptr, &context.mTim…  in WaitForFrame()
763             Process(&context);  in WaitForFrame()