sendcontext.cdf

来自「tinyos最新版」· CDF 代码 · 共 79 行

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//
// Authors:   Philip Levis
// History:   November 29, 2003  Inception
//

//
// A context description file (CDF).
//
// @author Philip Levis
//

<CONTEXT name=Send desc="Runs in response to another context calling SENDR(BUF). The buffer is copied into the send context, which then runs in parallel with the calling context. The send context then transmits the packet with SENDR2(VAL,BUF), where VAL is the network address to send the packet to (0xffff, or ~0, is the broadcast address).">

<PRIMITIVE name=SENDR opcode=sendr numparams=1 returnval=FALSE desc="Triggers the send context to run, sending the buffer that is a parameter to this function. The send context copies the buffer into its namespace, then runs in parallel.">

<PRIMITIVE name=SENDRS opcode=sendrs numparams=2 returnval=FALSE desc="Only callable from the send context. Takes two parameters; the first is the buffer to send, the second is the address to send it to.">

<PRIMITIVE name=SENDBUF opcode=sendbuf numparams=0 returnval=TRUE desc="Only callable from the send context. Takes no parameters. Returns a buffer containing the data a caller requested to be sent.">