通过日志文件分析Peercast频道的创建过程

由ChanMgr创建新频道并加入到当前的频道列表中

[CHAN] New channel created

Channel *ChanMgr::createChannel(ChanInfo &info, const char *mount)
{
 Channel *nc=NULL;

 nc = new Channel();

 nc->info = info;

 nc->next = channel;
 channel = nc;

 LOG_CHANNEL("New channel created");
 return nc;

}

由Channel类启动频道，并加入到ChangMgr的Hit列表中
[CHAN] Channel started

THREAD_PROC Channel::stream(ThreadInfo *thread)
{
// thread->lock();

 Channel *ch = (Channel *)thread->data;

 while (thread->active && !peercastInst->isQuitting)
 {
  LOG_CHANNEL("Channel started");

  ChanHitList *chl = chanMgr->findHitList(ch->info);
  if (!chl)
   chanMgr->addHitList(ch->info);

  ch->sourceData->stream(ch);

由Channel根据频道信息，创建相应的源
[CHAN] Channel is MP3 - meta: 0

ChannelStream *Channel::createSource()
{

 ChannelStream *source=NULL;

switch(info.contentType)
  {
   case ChanInfo::T_MP3:
    LOG_CHANNEL("Channel is MP3 - meta: %d",icyMetaInterval);
    source = new MP3Stream();
    break;

}

return source;

}