teamgeist.nc

来自「tinyos-2.x.rar」· NC 代码 · 共 67 行

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/**
 * Interface that helps the MAC to cooperate with the routing
 * @author Andreas Koepke (koepke at tkn.tu-berlin.de)
 */ 
interface Teamgeist {
    /**
     * Get the AM type of the messages that are jointly routed by the MAC and
     * the routing layer. Only for these messages the MAC tries to access the
     * routing layer. 
     */
    event am_id_t observedAMType();

    /**
     * The MAC layer uses this function to ask the routing protocol whether it
     * should acknowledge and thus propose himself as a forwarder. 
     */
    async event bool needsAck(message_t *msg, am_addr_t src, am_addr_t dest, uint16_t snr);

    /**
     * Sending the message to the original destination did not work.
     * Ask for a different one.
     */
    async event am_addr_t getDestination(message_t *msg, uint8_t retryCounter);
    
    /**
     * Information on the ACK.
     */
    async event void gotAck(message_t *msg, am_addr_t ackSender, uint16_t snr);

    /**
     * The MAC layer uses this function to ask the routing protocol how many
     * potential forwarders there are. This may not give a precise number, but
     * a rough estimate.
     */
    async event uint8_t estimateForwarders(message_t *msg);
}