| OZ++ Sample: NeighbourDiscoverer |
/****************************************************************************** * * Copyright (c) 2015 Antillia.com TOSHIYUKI ARAI. ALL RIGHTS RESERVED. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions, and the following disclaimer. * * 2. The name of the author may not be used to endorse or promote products * derived from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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. * * * NeighbourDiscoverer.cpp * *****************************************************************************/ #include <oz++/CommonObject.h> #include <oz++/LocalDateTime.h> #include <oz++/Exception.h> #include <oz++/SmartArray.h> #include <oz++/Thread.h> #include <oz++/CharString.h> #include <oz++/LinkedList.h> #include <oz++/Property.h> #include <oz++/netlink/SocketNetlink.h> #include <oz++/netlink/SockAddrNetlink.h> #include <oz++/netlink/NetlinkReply.h> #include <oz++/netlink/NeighbourDiscoveryAttribute.h> #include <oz++/netlink/NetlinkMsgHeader.h> #include <oz++/netlink/NeighbourDiscoveryMsg.h> #include <oz++/netlink/NetlinkRequest.h> #include <oz++/motif/ApplicationView.h> #include <oz++/motif/TableView.h> namespace OZ { class NeighbourDiscoverer :public Thread { private: View* view; //Shallow copy NetlinkRequest<ndmsg> request; SocketNetlink socketNetlink; public: NeighbourDiscoverer(View* v, unsigned char family = AF_INET) :Thread(), view(v) { NetlinkMsgHeader header(&request.head); header.type(RTM_GETNEIGH); header.flags(NLM_F_REQUEST | NLM_F_DUMP); header.seq(100); header.pid(getpid()); NeighbourDiscoveryMsg body(&request.body); body.family(family); header.length( NLMSG_LENGTH(body.size()) ); } int send() { return socketNetlink.send((const char*)&request, sizeof(request), 0); } void recv() { int index = 0; while (true) { char buffer[4096]; bzero(buffer, sizeof(buffer)); int n = socketNetlink.recv(buffer, sizeof(buffer), 0); if (n < 0){ break;; } NetlinkMsgHeader replyHeader(buffer, n); if (replyHeader.isDone() || replyHeader.isError() ) { break; } try { do { replyHeader.display(); NeighbourDiscoveryMsg discoveryMsg(replyHeader.data()); NeighbourDiscoveryAttribute attr(replyHeader, discoveryMsg); do { attr.parse(); } while (attr.next() ); LinkedListT<Property> list; discoveryMsg.getPropertyList(list); //Call updateMmodel view -> updateModel(&list); index++; } while (replyHeader.next()); } catch (Exception& ex) { caught(ex); } fflush(stdout); } //while } void run() { printf("NeighbourDiscoverer::run start\n"); try { send(); recv(); } catch (Exception& ex) { caught(ex); } //Delete this pointer delete this; printf("NeighbourDiscoverer::run end\n"); } }; class MainView :public ApplicationView { private: SmartPtr<TableView> table; int column; SmartArray<CharString*> model; NeighbourDiscoverer* discoverer; private: virtual void updateModel(CommonObject* object) { if (object) { //Update model of one row data. LinkedListT<Property>* list = (LinkedListT<Property>*)object; model.removeAllItems(); size_t size = list->getLength(); for (size_t i = 0; i < size; i++) { Property* prop = list->getNth(i); model[i] = new CharString(prop -> value()); } //Call updateView method updateView(); } } virtual void updateView() { //Update one row in the table. int size = model.getSize(); for (int i = 0; i<size; i++) { CharString* value = model[i]; if (value) { printf("%d %s\n", i, (const char*)(*value)); table -> setItem(i, column, (const char*)(*value)); } } // Call flush to update items of the table immediately. flush(); column++; } public: MainView(Application& applet, const char* name, Args& args) :ApplicationView(applet, name, args), column(0) { ColumnData columnData[] = { {"A", 180, XmALIGNMENT_BEGINNING}, {"B", 180, XmALIGNMENT_BEGINNING}, {"C", 180, XmALIGNMENT_BEGINNING}, {"D", 180, XmALIGNMENT_BEGINNING}, {"E", 180, XmALIGNMENT_BEGINNING}, {"F", 180, XmALIGNMENT_BEGINNING}, {"G", 180, XmALIGNMENT_BEGINNING}, }; RowData rowData[] = { {"NDMSG family", 140, XmALIGNMENT_BEGINNING}, {"NDMSG flags", 0, XmALIGNMENT_BEGINNING}, {"NDMSG type", 0, XmALIGNMENT_BEGINNING}, {"NDMSG state", 0, XmALIGNMENT_BEGINNING}, {"NDMSG ifindex", 0, XmALIGNMENT_BEGINNING}, {"NDA_DST", 0, XmALIGNMENT_BEGINNING}, {"NDA_LLADDR", 0, XmALIGNMENT_BEGINNING}, {"NDA_CACHEINFO", 0, XmALIGNMENT_BEGINNING}, }; int numColumns = XtNumber(columnData); int numRows = XtNumber(rowData); Args ar; ar.set(XmNtableNumColumns, numColumns); ar.set(XmNtableColumnData, (XtArgVal)columnData); ar.set(XmNtableNumRows, numRows); ar.set(XmNtableRowData, (XtArgVal)rowData); table = new TableView(this, "", ar); table -> removeAllItems(); discoverer = new NeighbourDiscoverer(this); discoverer -> start(); } ~MainView() { discoverer = NULL; model.clear(); } }; } // int main(int argc, char** argv) { XInitThreads(); //2015/06/10 try { const char* appclass = argv[0]; Application applet(appclass, argc, argv); Args args; args.set(XmNgeometry, "860x240"); MainView view(applet, argv[0], args); view.realize(); applet.run(); } catch (Exception& ex) { caught(ex); } return 0; }