Method read

system/lib/wasmfs/pipe_backend.h:36–45

  }

  ssize_t read(uint8_t* buf, size_t len, off_t offset) override {
    for (size_t i = 0; i < len; i++) {
      if (data->empty()) {
        return i;
      }
      buf[i] = data->front();
      data->pop();
    }
    return len;
  }

  int flush() override { return 0; }