使用NetFileEnum 列举本机共享资源 无法进入线程的run方法

Question

void CNetMonDlg::OnOK()    
{   
    // TODO: Add extra validation here    
       
    //CDialog::OnOK();    
    if(m_pThread==NULL)   
    {  
        m_pThread=(EnumThread *)AfxBeginThread(RUNTIME_CLASS(EnumThread),0,0,CREATE_SUSPENDED,0);   
       m_pThread->SetOwner(this);   
        m_pThread->ResumeThread();    

    }   
}   
int EnumThread::Run()    
{   
    // TODO: Add your specialized code here and/or call the base class    
    const int STA_LINK=1;   
    const int STA_LEAVE=2;   
    const int STA_CLOSE=0;   
   
    struct FileStatus{   
        DWORD fileID;   
        int Status;   
        struct FileStatus *Next;   
    }*RootP=NULL,*tempP=NULL,*newP;    
   
    DWORD res=0,i;   
    DWORD er=0,ta=0;    
    
    PFILE_INFO_3 m=NULL,n;   
    char temp[1024];   
    CString str;   
   
    while(!m_bExit)   
    {   
        Sleep(1);   
   
        res=NetFileEnum(NULL,NULL,NULL,3,(PBYTE *)&m,MAX_PREFERRED_LENGTH,&er,&ta,NULL);   
        if(res==0)   
        {   
            if(er>0)   
            {   
                n=m;   
                for(i=0;i<er;i++) 
{
bool Found=false;
tempP=RootP;
while(tempP)   
                        {  
if(tempP->fileID==n->fi3_id) 
{
 Found=true;   
                            tempP->Status=STA_LINK;   
                            break;
}
                          

                          
                        tempP=tempP->Next;   
                    }   
                       
                    if(!Found)   
                    {   
                        newP=new struct FileStatus;   
                        newP->fileID=n->fi3_id;   
                        newP->Status=STA_LINK;   
                        newP->Next=NULL;   
                        tempP=RootP;   
                        if(tempP==NULL)   
                        {   
                            RootP=newP;   
                        }   
                        else   
                        {   
                            while(tempP->Next)tempP=tempP->Next;   
                            tempP->Next=newP;   
                        }   
                           
   
                       WideCharToMultiByte(CP_ACP,   
                                0,   
                                (WORD *)n->fi3_username,   
                                wcslen((WORD *)n->fi3_username)+1,   
                                temp,   
                                1024,   
                                NULL,   
                                NULL);   
      
                        str=temp;   
                        str+="正在访问";   
                        WideCharToMultiByte(CP_ACP,   
                                0,   
                                (WORD *)n->fi3_pathname,   
                                wcslen((WORD *)n->fi3_pathname)+1,   
                                temp,   
                                1024,   
                                NULL,   
                                NULL);   
   
                        str+=temp;   
   
                           
                        m_Owner->m_List.AddString(str);   
               
                    }   
                    n++;   
                }   
            }   
            tempP=RootP;   
           
            while(tempP)   
            {                      
                if(tempP->Status==STA_LEAVE)   
                {   
                    if(RootP==tempP)   
                    {   
                        newP=tempP;   
                        tempP=tempP->Next;   
                        RootP=tempP;   
                        newP->Next=NULL;   
                        delete newP;   
                        newP=tempP;   
                    }   
                    else   
                    {   
                        newP->Next=tempP->Next;   
                        tempP->Next=NULL;   
                        delete tempP;   
                           
                        tempP=newP->Next;   
                    }   
                       
                }   
                else   
                {   
                    newP=tempP;   
                    tempP=tempP->Next;   
                }   
            }   
            tempP=RootP;   
            while(tempP)   
            {   
                tempP->Status=STA_LEAVE;   
                tempP=tempP->Next;   
            }   
            NetApiBufferFree(m);   
        }   
    }   
   
    return 0;   
}   运行成功 但是m_list文本框中没有东西，调试没有进入run

Answer 1

#include <stdio.h>
#include <assert.h>
#include <windows.h> 
#include <svrapi.h>const short MAX_ENTRIES = 20;int main(int argc, char FAR * argv[])
{
   char FAR * pszServerName = NULL;
   short nLevel = 50;
   struct file_info_50* pBuf = NULL;
   struct file_info_50* pTmpBuf = NULL;
   short cbBuffer;
   short nEntriesRead = 0;
   short nTotalEntries = 0;
   short nTotalCount = 0;
   int i;
   NET_API_STATUS nStatus;
   //
   // ServerName can be NULL to indicate the local computer.
   //
   if (argc > 2)
   {
      printf("Usage: %s [\\\\ServerName]\n", argv[0]);
      exit(1);
   }   if (argc == 2)
      pszServerName = argv[1];
   //
   // Allocate the memory required to receive a maximum of
   //  20 file_info_50 structures.
   //
   cbBuffer = MAX_ENTRIES * sizeof(struct file_info_50);   pBuf = malloc(cbBuffer);   if (pBuf == NULL)
      printf("No memory\n");   // Call the NetFileEnum function to list the
   //  open files, specifying information level 50.
   //
   nStatus = NetFileEnum(pszServerName,
                         NULL,
                         nLevel,
                         (char FAR *)pBuf,
                         cbBuffer,
                         &nEntriesRead,
                         &nTotalEntries);
   //
   // Loop through the entries; process errors.
   //
   if ((nStatus == NERR_Success) || (nStatus == ERROR_MORE_DATA))
   {
      if ((pTmpBuf = pBuf) != NULL)
      {
         for (i = 0; (i < nEntriesRead); i++)
         {
            assert(pTmpBuf != NULL);            if (pTmpBuf == NULL)
            {
               fprintf(stderr, "An access violation has occurred\n");
               break;
            }
            //
            // Display the information for each entry retrieved.
            //
            printf("\tShare: %s\n", pTmpBuf->fi50_sharename);
            printf("\n\tPath: %s\n", pTmpBuf->fi50_pathname);
            printf("\tUser:   %s\n", pTmpBuf->fi50_username);
            printf("\tID:   %d\n", pTmpBuf->fi50_id);            pTmpBuf++;
            nTotalCount++;
         }
      }
   }
   else
      fprintf(stderr, "A system error has occurred: %d\n", nStatus);
   //
   // Display a warning if the buffer was not large enough
   //  to contain all available entries.
   //
   if ((nEntriesRead < nTotalEntries) || (nStatus == ERROR_MORE_DATA))
      fprintf(stderr, "Not all entries have been enumerated\n");
   //
   // Free the allocated memory.
   //
   if (pBuf != NULL)
      free(pBuf);   fprintf(stderr, "\nTotal of %d entries enumerated\n", nTotalCount);   return 0;
}