指针参数 引用参数

static pthread_mutex_t lock_mute;

int modify_inode_for_chain(int index, char *content_id, int play_time)
{

 pthread_mutex_lock(&lock_mute);
 
 if(chain_list[index]->head == NULL || chain_list[index]->count == 0)
 {
  pthread_mutex_unlock(&lock_mute);
  return 0;
 }
 
 node_gut* temp = chain_list[index]->head;
 while(1)
 {
  if(strcmp(temp->content_id, content_id) == 0)
  {
   temp->play_num = play_time;
   pthread_mutex_unlock(&lock_mute);
   return 1;
  }
  
  if(temp->next == NULL)
  {
   pthread_mutex_unlock(&lock_mute);
   return 0;
  }
  
  temp = temp->next;
 }

 pthread_mutex_unlock(&lock_mute);
 
 return 0;
}

//*content_id指针参数 指针参数 传入副本需判NULL

//&lock_mute引用参数 引用参数 在转入前已指向具体pthread_mutex_t 类型 传入副本只能使用lock_mute

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D_INT32 curindex = 0;
 char *cur_filename = NULL;
 
 dg_player_play_tree_cur_get(&curindex);
D_INT32 dg_player_play_tree_cur_get(D_INT32 *pindex)
{
 if (NULL == pindex)
 {
  return D_FAILURE;
 }
 
 *pindex = play_tree.cur;
 return D_SUCCESS;
}

D_INT32 dg_player_play_tree_cur_get_JXHY(D_INT32 type,D_INT32 *pindex)
{
 D_INT8* filenameinlist;
 display_info fileInfo;
 FILEINFO pinfo;
 
 dg_player_play_tree_index_file_get(0, &filenameinlist);
 if (NULL == filenameinlist)
 {
  return D_FAILURE;
 }
 //printf("播放列表的第一个: %s --------------jason\n",filenameinlist);

 D_INT32 file_count;

 file_count = get_inode_count_from_chain(type);
 //DG_MW_file_browser_file_count(&file_count);
 //printf("file_count == %d ---------------jason\n", file_count);

 node_gut *node_file = NULL;
 node_file = get_header_addr_from_chain(type);
 /*
 if (NULL == node_file)
 {
  return D_FAILURE;
 }
 for (int index = 0; index < file_count -2; index ++)
 {
  if (NULL == node_file)
  {
   return D_FAILURE;
  }
  node_file = node_file->next;
 }
 */

 printf("node_file->file name == %s ,contendid [%s ]\n",
  node_file->file_name, node_file->content_id);
 //Dare_GetInfoByContentID(node_file->content_id,&pinfo);
 

 for (int i = 0; i < file_count; i++)
 {
  //DG_MW_file_browser_file_info_JXHY(i,  &fileInfo);
  
  //get_inode_value_from_chain(type,file_count-i-1,&fileInfo);
  //int ret = Dare_GetInfoByContentID(fileInfo.content_id,&pinfo);
  if (NULL == node_file)
  {
   return D_FAILURE;
  }
  int ret = Dare_GetInfoByContentID(node_file->content_id,&pinfo);
  
  if(D_FAILURE  ==ret)
  {
   printf("get info failed ---2\n");
   return D_FAILURE;
  }

  if ((NULL != pinfo.filmfile) && (NULL != filenameinlist))
  {

   if (0 == strcmp(pinfo.filmfile, filenameinlist))
   {
    D_INT32 index = 0;
    //DG_MW_GetIndexByContentID(fileInfo.contentid, &index);
    get_chainindex(type, node_file->content_id, &index);

    if(index<0)
    {
     index = 0;
    }
    printf("--------------index == %d -------------\n", index);
    *pindex = index;
    return D_SUCCESS;
   }
  }
  node_file = node_file->next;
 }

 return D_SUCCESS;
}