interface Receive as Snoop[am_id_t id];
interface AMPacket;
interface Packet;
+ interface SendNotifier[am_id_t id];
}
+
uses {
interface Send as SubSend;
interface Receive as SubReceive;
header->dest = addr;
header->destpan = call CC2420Config.getPanAddr();
+ signal SendNotifier.aboutToSend[id](addr, msg);
+
return call SubSend.send( msg, len + CC2420_SIZE );
}
}
default event void AMSend.sendDone[uint8_t id](message_t* msg, error_t err) {
- return;
}
+ default event void SendNotifier.aboutToSend[am_id_t amId](am_addr_t addr, message_t *msg) {
+ }
+
}
--- /dev/null
+/*
+ * Copyright (c) 2005-2006 Rincon Research Corporation
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * - Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * - Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the
+ * distribution.
+ * - Neither the name of the Rincon Research Corporation nor the names of
+ * its contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * RINCON RESEARCH OR ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
+ * OF THE POSSIBILITY OF SUCH DAMAGE
+ */
+
+/**
+ * The radio stack notifies the entire system that it is about to send
+ * a packet. Other modules in the system can call back within this event
+ * to modify the packet's metadata. For example, we can setup a module
+ * in the system to make every CTP data packet send with low power listening
+ * enabled:
+ *
+ * event void SendNotifier.aboutToSend[AM_COLLECTION_DATA](uint8_t dest,
+ * message_t *msg) {
+ * call LowPowerListening.setRxSleepInterval(msg, 512);
+ * }
+ *
+ * @author David Moss
+ */
+
+#include "message.h"
+#include "AM.h"
+
+interface SendNotifier {
+
+ /**
+ * The system is about to send this message. Fill in any last modifications
+ * and the message will be sent.
+ *
+ * @param dest The destination address of the messsage
+ * @param msg The message about to be transmitted
+ */
+ event void aboutToSend(am_addr_t dest, message_t *msg);
+
+}