Wait until there is space for receiving data. We do not care how much space is available because pfnReceive() will re-check and notify the guest if necessary.
This function must be called before the pfnRecieve() method is called.
- VBox status code. VINF_SUCCESS means there is at least one receive descriptor available.
|pInterface ||Pointer to the interface structure containing the called function pointer. |
|cMillies ||Number of milliseconds to wait. 0 means return immediately. |