187 lines
4.2 KiB
C++
187 lines
4.2 KiB
C++
/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
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/*
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* Copyright (c) 2006 INRIA
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* All rights reserved.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation;
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*
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* Author: Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
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*/
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#include <list>
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#include <utility>
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#include <iostream>
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#include "debug.h"
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#include "assert.h"
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#include "ns3/core-config.h"
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#ifdef HAVE_STDLIB_H
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#include <stdlib.h>
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#endif
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namespace ns3 {
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typedef std::list<std::pair <std::string, DebugComponent *> > ComponentList;
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typedef std::list<std::pair <std::string, DebugComponent *> >::iterator ComponentListI;
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static
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ComponentList *GetComponentList (void)
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{
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static ComponentList components;
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return &components;
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}
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static bool g_firstDebug = true;
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void
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DebugComponentEnableEnvVar (void)
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{
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#ifdef HAVE_GETENV
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char *envVar = getenv("NS_DEBUG");
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if (envVar == 0)
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{
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return;
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}
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std::string env = envVar;
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std::string::size_type cur = 0;
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std::string::size_type next = 0;
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while (true)
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{
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next = env.find_first_of (";", cur);
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std::string tmp = std::string (env, cur, next);
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{
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/* The following code is a workaround for a bug in the g++
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* c++ string library. Its goal is to remove any trailing ';'
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* from the string even though there should not be any in
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* it. This code should be safe even if the bug is not there.
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*/
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std::string::size_type trailing = tmp.find_first_of (";");
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tmp = tmp.substr (0, trailing);
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}
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if (tmp.size () == 0)
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{
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break;
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}
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bool found = false;
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ComponentList *components = GetComponentList ();
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for (ComponentListI i = components->begin ();
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i != components->end ();
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i++)
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{
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if (i->first.compare (tmp) == 0)
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{
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found = true;
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i->second->Enable ();
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break;
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}
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}
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if (!found)
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{
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std::cout << "No debug component named=\"" << tmp << "\"" << std::endl;
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}
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if (next == std::string::npos)
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{
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break;
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}
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cur = next + 1;
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if (cur >= env.size ())
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{
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break;
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}
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}
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#endif
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}
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DebugComponent::DebugComponent (char const * name)
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: m_isEnabled (false)
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{
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ComponentList *components = GetComponentList ();
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for (ComponentListI i = components->begin ();
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i != components->end ();
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i++)
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{
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NS_ASSERT (i->first != name);
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}
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components->push_back (std::make_pair (name, this));
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}
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bool
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DebugComponent::IsEnabled (void)
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{
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if (g_firstDebug)
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{
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DebugComponentEnableEnvVar ();
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g_firstDebug = false;
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}
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return m_isEnabled;
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}
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void
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DebugComponent::Enable (void)
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{
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m_isEnabled = true;
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}
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void
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DebugComponent::Disable (void)
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{
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m_isEnabled = false;
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}
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void
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DebugComponentEnable (char const *name)
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{
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ComponentList *components = GetComponentList ();
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for (ComponentListI i = components->begin ();
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i != components->end ();
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i++)
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{
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if (i->first.compare (name) == 0)
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{
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i->second->Enable ();
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break;
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}
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}
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}
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void
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DebugComponentDisable (char const *name)
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{
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ComponentList *components = GetComponentList ();
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for (ComponentListI i = components->begin ();
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i != components->end ();
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i++)
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{
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if (i->first.compare (name) == 0)
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{
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i->second->Disable ();
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break;
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}
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}
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}
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void
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DebugComponentPrintList (void)
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{
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ComponentList *components = GetComponentList ();
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for (ComponentListI i = components->begin ();
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i != components->end ();
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i++)
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{
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std::cout << i->first << "=" << (i->second->IsEnabled ()?"enabled":"disabled") << std::endl;
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}
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}
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}; // namespace ns3
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