Function handle

src/iocore/io_uring/unit_tests/test_diskIO.cc:80–84

};

IOUringCompletionHandler *
handle(const std::function<void(int)> &f)
{
  return new FunctionHolderHandler(std::move(f));
}

void
io_uring_write(IOUringContext &ur, int fd, const char *data, size_t len, const std::function<void(int)> &f)