一个文件名队列

 

#define     FILENAME_SIZE      33

class FILE_NAME_NODE 
{
public:
 ADDFILE_INFO_T m_FileName;
 FILE_NAME_NODE * m_pNextFileName;
};
typedef FILE_NAME_NODE* PFILE_NAME_NODE

///////////////////////////////////////////

class FILE_NAME_QUEUE{
public:
 FILE_NAME_QUEUE();
 ~FILE_NAME_QUEUE();
    BOOL FilenameAdd(ADDFILE_INFO_T addfile);//add one to the end 
    UINT FilenameDel();       // delete the first
public:
    PFILE_NAME_NODE pBeginFileName;
    PFILE_NAME_NODE pEndFileName;
    BOOL isEmpty;
 CCriticalSection critical_section;
protected:
 FILE_NAME_NODE m_FileNameNode[FILENAME_SIZE];
};

///////////////////////////////////////////

#include "FileName.h"

FILE_NAME_QUEUE::FILE_NAME_QUEUE()
{
 pBeginFileName=m_FileNameNode;
 pEndFileName=m_FileNameNode;
 for (int i=0;i<(FILENAME_SIZE-1);i++)
 {
  m_FileNameNode[i].m_pNextFileName=&m_FileNameNode[i+1];
 }
 m_FileNameNode[FILENAME_SIZE-1].m_pNextFileName=m_FileNameNode;
 isEmpty=TRUE;
}

FILE_NAME_QUEUE::~FILE_NAME_QUEUE()
{
// do nothing ,system default process
}

BOOL FILE_NAME_QUEUE::FilenameAdd(ADDFILE_INFO_T addfile)
{
 critical_section.Lock();
 pEndFileName->m_FileName=addfile;
 pEndFileName=pEndFileName->m_pNextFileName;
 if (pEndFileName==pBeginFileName)
 {
  critical_section.Unlock();
  return FALSE;
 }
 isEmpty=FALSE;
 critical_section.Unlock();
 return TRUE;
}

UINT FILE_NAME_QUEUE::FilenameDel()
{
//pBeginFileName->m_FileName/*=NULL*/;
 critical_section.Lock();
 pBeginFileName=pBeginFileName->m_pNextFileName;
 if (pBeginFileName==pEndFileName)
 {
  isEmpty=TRUE;
  critical_section.Unlock();
  return 1; 
 }
 critical_section.Unlock();
 return 0;
}