Method Prepare

Source/cmUVProcessChain.cxx:191–336

}

bool cmUVProcessChain::InternalData::Prepare(
  cmUVProcessChainBuilder const* builder)
{
  this->Builder = builder;

  if (this->Builder->Loop) {
    this->Loop = this->Builder->Loop;
  } else {
    this->BuiltinLoop.init();
    this->Loop = this->BuiltinLoop;
  }

  auto const& input =
    this->Builder->Stdio[cmUVProcessChainBuilder::Stream_INPUT];
  auto& inputData = this->InputStreamData;
  switch (input.Type) {
    case cmUVProcessChainBuilder::None:
      inputData.Stdio.flags = UV_IGNORE;
      break;

    case cmUVProcessChainBuilder::Builtin: {
      // FIXME
      break;
    }

    case cmUVProcessChainBuilder::External:
      inputData.Stdio.flags = UV_INHERIT_FD;
      inputData.Stdio.data.fd = input.FileDescriptor;
      break;
  }

  auto const& output =
    this->Builder->Stdio[cmUVProcessChainBuilder::Stream_OUTPUT];
  auto& outputData = this->OutputStreamData;
  switch (output.Type) {
    case cmUVProcessChainBuilder::None:
      outputData.Stdio.flags = UV_IGNORE;
      break;

    case cmUVProcessChainBuilder::Builtin: {
      int pipeFd[2];
      if (cmGetPipes(pipeFd) < 0) {
        return false;
      }

      if (outputData.BuiltinStream.init(*this->Loop, 0) < 0) {
        return false;
      }
      if (uv_pipe_open(outputData.BuiltinStream, pipeFd[0]) < 0) {
        return false;
      }

      if (this->TempOutputPipe.init(*this->Loop, 0) < 0) {
        return false;
      }
      if (uv_pipe_open(this->TempOutputPipe, pipeFd[1]) < 0) {
        return false;
      }