format  void GFS_NwGetStat (GfsHngfs, Sint32 * stat, Sint32 * ndata)
 Input  gfs: File handle
 Output  stat: Current access status
:  ndata: Number of data
 Function value  None
 Function  Used to obtain the access status of the server function.
.  The meaning of the data for each access status is shown below. 

Access status	Process	Meaning of data count
GFS_NWSTAT_NOACT	None	No meaning
GFS_NWSTAT_FREAD	Read from CD to host area	number of bytes read into host area
GFS_NWSTAT_CDREAD	Read ahead to CD buffer	CD buffer number of sectors read

  format  Sint32 GFS_NwExecOne (GfsHn gfs)
 Input  gfs: File handle
 Output  None
 Function value  Execution state (GFS_SVR_ ~). Negative error code in case of error.
 Function  Access server function for a single file. Just before the file handle
Following the access operation called  , the following processing is executed.
GFS_NwFread
Performs read processing to the CD buffer and transfer processing to the host.
GFS_NwCdRead
Reads data to the CD buffer. 

  format  Sint32GFS_NwExecServer (GfsHn * now_gfs)
 Input  None
 Output  now_gfs: File handle that is the execution target
 Function value  Access server status (GFS_SVR_ ~). Negative error code in case of error.
 Function  Access server function for multiple files. The actual order in which the requests were issued
 Access  (GFS_NwExecOne).
  After the access operation of one file is completed, it moves to the next process.
  When processing of multiple files is completed, it will be GFS_SVR_COMPLETED.