?? group.cc
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/* * Copyright (C) 1997 by the University of Southern California * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License, * version 2, as published by the Free Software Foundation. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License along * with this program; if not, write to the Free Software Foundation, Inc., * 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA. * * * The copyright of this module includes the following * linking-with-specific-other-licenses addition: * * In addition, as a special exception, the copyright holders of * this module give you permission to combine (via static or * dynamic linking) this module with free software programs or * libraries that are released under the GNU LGPL and with code * included in the standard release of ns-2 under the Apache 2.0 * license or under otherwise-compatible licenses with advertising * requirements (or modified versions of such code, with unchanged * license). You may copy and distribute such a system following the * terms of the GNU GPL for this module and the licenses of the * other code concerned, provided that you include the source code of * that other code when and as the GNU GPL requires distribution of * source code. * * Note that people who make modified versions of this module * are not obligated to grant this special exception for their * modified versions; it is their choice whether to do so. The GNU * General Public License gives permission to release a modified * version without this exception; this exception also makes it * possible to release a modified version which carries forward this * exception. * * $Header: /cvsroot/nsnam/nam-1/group.cc,v 1.5 2007/02/12 07:08:43 tom_henderson Exp $ */#include <string.h>#include "group.h"Group::Group(const char *name, unsigned int addr) : Animation(0, 0), size_(0), addr_(addr), name_(0){ if (name != NULL) if (*name != 0) { name_ = new char[strlen(name)+1]; strcpy(name_, name); } nodeHash_ = new Tcl_HashTable; Tcl_InitHashTable(nodeHash_, TCL_ONE_WORD_KEYS);}Group::~Group(){ if (name_ != NULL) delete name_; Tcl_DeleteHashTable(nodeHash_); delete nodeHash_;}int Group::join(int id){ int newEntry = 1; Tcl_HashEntry *he = Tcl_CreateHashEntry(nodeHash_, (const char *)id, &newEntry); if (he == NULL) return -1; if (newEntry) { Tcl_SetHashValue(he, (ClientData)id); size_++; } return 0;}void Group::leave(int id){ Tcl_HashEntry *he = Tcl_FindHashEntry(nodeHash_, (const char *)id); if (he != NULL) { Tcl_DeleteHashEntry(he); size_--; }}// Assume mbrs has at least size_ elementsvoid Group::get_members(int *mbrs){ Tcl_HashEntry *he; Tcl_HashSearch hs; int i = 0; for (he = Tcl_FirstHashEntry(nodeHash_, &hs); he != NULL; he = Tcl_NextHashEntry(&hs), i++) mbrs[i] = *(int*)Tcl_GetHashValue(he);}void Group::draw(View * nv, double now) { // Do nothing for now. Will add group visualization later.}
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