?? rca-ll.cc
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/************************************************************************* * * This code was developed as part of the MIT SPIN project. (June, 1999) * *************************************************************************/#ifdef MIT_uAMPS#include "delay.h"//#include "object.h"#include "packet.h"//#include "debug.h"#include <list>#include "arp.h"#include "topography.h"#include "trace.h"#include "node.h"#include "mac.h"#include "ll.h"#include "mit/rca/rca-ll.h"#include "random.h"static class RCALinkLayerClass : public TclClass {public: RCALinkLayerClass() : TclClass("RCALinkLayer") {} TclObject* create(int, const char*const*) { return (new RCALinkLayer); }} class_rcalinklayer;void RCALinkLayer::sendDown(Packet* p){ Scheduler& s = Scheduler::instance(); hdr_rca *rcah = HDR_RCA(p); hdr_ll *llh = HDR_LL(p); char *mh = (char*)p->access(hdr_mac::offset_); llh->seqno() = ++seqno_; llh->lltype() = LL_DATA; mac_->hdr_src(mh, mac_->addr()); mac_->hdr_type(mh, ETHERTYPE_IP); mac_->hdr_dst((char*) HDR_MAC(p), rcah->rca_mac_dst()); //Packet::PrintRcHeader(p,"Link Outgoing"); mac_->hdr_dst((char*)HDR_MAC(p),rcah->rca_mac_dst()); //s.schedule(downtarget_, p, mindelay_ / 2 + delay_ * Random::uniform()); s.schedule(downtarget_, p, delay_);}void RCALinkLayer::sendUp(Packet* p){ Scheduler& s = Scheduler::instance(); hdr_rca *rcah = HDR_RCA(p); //Packet::PrintRcHeader(p,"Link Incomming"); if (hdr_cmn::access(p)->error() > 0) { //printf("Warning! %d dropping packet from %d b/c it has an error.\n", //rcah->rca_src(), rcah->rca_link_dst()); //fflush(stdout); drop(p); } else s.schedule(uptarget_, p, delay_);}#endif?? 快捷鍵說明
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