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_ elements
- void 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] = *Tcl_GetHashValue(he);
- }
- void Group::draw(View * nv, double now) {
- // Do nothing for now. Will add group visualization later.
- }