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debug.cpp

/* ScummVM - Graphic Adventure Engine
 *
 * ScummVM is the legal property of its developers, whose names
 * are too numerous to list here. Please refer to the COPYRIGHT
 * file distributed with this source distribution.
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.
 *
 * 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
 *
 * $URL$
 * $Id$
 */

#include "common/debug.h"
#include "common/debug-channels.h"
#include "common/system.h"
#include "common/textconsole.h"

#include <stdarg.h>     // For va_list etc.

// TODO: Move gDebugLevel into namespace Common.
int gDebugLevel = -1;

DECLARE_SINGLETON(Common::DebugManager);

namespace Common {

namespace {

struct DebugLevelComperator {
      bool operator()(const DebugManager::DebugChannel &l, const DebugManager::DebugChannel &r) {
            return (l.name.compareToIgnoreCase(r.name) < 0);
      }
};

} // end of anonymous namespace

00049 bool DebugManager::addDebugChannel(uint32 channel, const String &name, const String &description) {
      if (gDebugChannels.contains(name))
            warning("Duplicate declaration of engine debug channel '%s'", name.c_str());

      gDebugChannels[name] = DebugChannel(channel, name, description);

      return true;
}

00058 void DebugManager::clearAllDebugChannels() {
      gDebugChannelsEnabled = 0;
      gDebugChannels.clear();
}

00063 bool DebugManager::enableDebugChannel(const String &name) {
      DebugChannelMap::iterator i = gDebugChannels.find(name);

      if (i != gDebugChannels.end()) {
            gDebugChannelsEnabled |= i->_value.channel;
            i->_value.enabled = true;

            return true;
      } else {
            return false;
      }
}

00076 bool DebugManager::disableDebugChannel(const String &name) {
      DebugChannelMap::iterator i = gDebugChannels.find(name);

      if (i != gDebugChannels.end()) {
            gDebugChannelsEnabled &= ~i->_value.channel;
            i->_value.enabled = false;

            return true;
      } else {
            return false;
      }
}


00090 DebugManager::DebugChannelList DebugManager::listDebugChannels() {
      DebugChannelList tmp;
      for (DebugChannelMap::iterator i = gDebugChannels.begin(); i != gDebugChannels.end(); ++i)
            tmp.push_back(i->_value);
      sort(tmp.begin(), tmp.end(), DebugLevelComperator());

      return tmp;
}

00099 bool DebugManager::isDebugChannelEnabled(uint32 channel) {
      // Debug level 11 turns on all special debug level messages
      if (gDebugLevel == 11)
            return true;
      else
            return (gDebugChannelsEnabled & channel) != 0;
}

}     // End of namespace Common


#ifndef DISABLE_TEXT_CONSOLE

static void debugHelper(const char *s, va_list va, bool caret = true) {
      char buf[STRINGBUFLEN];

      vsnprintf(buf, STRINGBUFLEN, s, va);
      buf[STRINGBUFLEN-1] = '\0';

      if (caret) {
            buf[STRINGBUFLEN-2] = '\0';
            strcat(buf, "\n");
      }

      if (g_system)
            g_system->logMessage(LogMessageType::kDebug, buf);
      // TODO: Think of a good fallback in case we do not have
      // any OSystem yet.
}

void debug(const char *s, ...) {
      va_list va;

      va_start(va, s);
      debugHelper(s, va);
      va_end(va);
}

void debug(int level, const char *s, ...) {
      va_list va;

      if (level > gDebugLevel)
            return;

      va_start(va, s);
      debugHelper(s, va);
      va_end(va);

}

void debugN(const char *s, ...) {
      va_list va;

      va_start(va, s);
      debugHelper(s, va, false);
      va_end(va);
}

void debugN(int level, const char *s, ...) {
      va_list va;

      if (level > gDebugLevel)
            return;

      va_start(va, s);
      debugHelper(s, va, false);
      va_end(va);
}

void debugC(int level, uint32 debugChannels, const char *s, ...) {
      va_list va;

      // Debug level 11 turns on all special debug level messages
      if (gDebugLevel != 11)
            if (level > gDebugLevel || !(DebugMan.isDebugChannelEnabled(debugChannels)))
                  return;

      va_start(va, s);
      debugHelper(s, va);
      va_end(va);
}

void debugCN(int level, uint32 debugChannels, const char *s, ...) {
      va_list va;

      // Debug level 11 turns on all special debug level messages
      if (gDebugLevel != 11)
            if (level > gDebugLevel || !(DebugMan.isDebugChannelEnabled(debugChannels)))
                  return;

      va_start(va, s);
      debugHelper(s, va, false);
      va_end(va);
}

void debugC(uint32 debugChannels, const char *s, ...) {
      va_list va;

      // Debug level 11 turns on all special debug level messages
      if (gDebugLevel != 11)
            if (!(DebugMan.isDebugChannelEnabled(debugChannels)))
                  return;

      va_start(va, s);
      debugHelper(s, va);
      va_end(va);
}

void debugCN(uint32 debugChannels, const char *s, ...) {
      va_list va;

      // Debug level 11 turns on all special debug level messages
      if (gDebugLevel != 11)
            if (!(DebugMan.isDebugChannelEnabled(debugChannels)))
                  return;

      va_start(va, s);
      debugHelper(s, va, false);
      va_end(va);
}

#endif

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