Function testWriteCallback

Tests/CMakeLib/testUVHandlePtr.cxx:98–143

}

static bool testWriteCallback()
{
  int pipe[] = { -1, -1 };
  if (cmGetPipes(pipe) < 0) {
    std::cout << "cmGetPipes() returned an error" << std::endl;
    return false;
  }

  cm::uv_loop_ptr loop;
  loop.init();

  cm::uv_pipe_ptr pipeRead;
  pipeRead.init(*loop, 0);
  uv_pipe_open(pipeRead, pipe[0]);

  cm::uv_pipe_ptr pipeWrite;
  pipeWrite.init(*loop, 0);
  uv_pipe_open(pipeWrite, pipe[1]);

  char c = '.';
  uv_buf_t buf = uv_buf_init(&c, sizeof(c));
  int status = -1;
  auto cb = std::make_shared<std::function<void(int)>>(
    [&status](int s) { status = s; });

  // Test getting a callback after the write is done.
  cm::uv_write(pipeWrite, &buf, 1, cb);
  uv_run(loop, UV_RUN_DEFAULT);
  if (status != 0) {
    std::cout << "cm::uv_write non-zero status: " << status << std::endl;
    return false;
  }

  // Test deleting the callback before it is made.
  status = -1;
  cm::uv_write(pipeWrite, &buf, 1, cb);
  cb.reset();
  uv_run(loop, UV_RUN_DEFAULT);
  if (status != -1) {
    std::cout << "cm::uv_write callback incorrectly called with status: "
              << status << std::endl;
    return false;
  }

  return true;
}

int testUVHandlePtr(int, char** const)
{