NS2中AODV协议解释.docx

分类：?ns仿真2012-05-28 20:23?1285人阅读?评论(5)?收藏?举报dststructrtfdelaytclfunction[cpp]?view plaincopy//#include?ip.h????#include?aodv/aodv.h??#include?aodv/aodv_packet.h??#include?random.h??#include?cmu-trace.h??//#include?energy-model.h????#define?max(a,b)????????(?(a)??(b)???(a)?:?(b)?)??#define?CURRENT_TIME????Scheduler::instance().clock()????//#define?DEBUG??//#define?ERROR????#ifdef?DEBUG??static?int?extra_route_reply?=?0;??static?int?limit_route_request?=?0;??static?int?route_request?=?0;??#endif??????/*???TCL?Hooks?*/??????int?hdr_aodv::offset_;??static?class?AODVHeaderClass?:?public?PacketHeaderClass?{??public:??????????AODVHeaderClass()?:?PacketHeaderClass(PacketHeader/AODV,????????????????????????????????????????????????sizeof(hdr_all_aodv))?{????????bind_offset(hdr_aodv::offset_);??????}???}?class_rtProtoAODV_hdr;??/*AODVclass?只有两个函数,构造函数和creat函数*/??static?class?AODVclass?:?public?TclClass?{??public:??????????AODVclass()?:?TclClass(Agent/AODV)?{}??????????TclObject*?create(int?argc,?const?char*const*?argv)?{????????????assert(argc?==?5);????????????//return?(new?AODV((nsaddr_t)?atoi(argv[4])));????????return?(new?AODV((nsaddr_t)?Address::instance().str2addr(argv[4])));??????????}??}?class_rtProtoAODV;????/*command函数实现了命令的分发*/??int??AODV::command(int?argc,?const?char*const*?argv)?{????if(argc?==?2)?{//命令的参数个数是2????Tcl?tcl?=?Tcl::instance();????????????if(strncasecmp(argv[1],?id,?2)?==?0)?{//命令所要求的操作为id????????tcl.resultf(%d,?index);????????return?TCL_OK;??????}????????????if(strncasecmp(argv[1],?start,?2)?==?0)?{//命令所要求的操作为start????????btimer.handle((Event*)?0);????#ifndef?AODV_LINK_LAYER_DETECTION????????htimer.handle((Event*)?0);????????ntimer.handle((Event*)?0);??#endif?//?LINK?LAYER?DETECTION??????????rtimer.handle((Event*)?0);????????return?TCL_OK;???????}???????????????????}????else?if(argc?==?3)?{//命令参数个数等于3??????if(strcmp(argv[1],?index)?==?0)?{//命令所要求的操作为index????????index?=?atoi(argv[2]);????????return?TCL_OK;??????}??//命令所要求的操作为log-target或者tracetarget???