gfdOpenStatusFile( )

Description | Example

Name:	int gfdOpenStatusFile (int chassis, int mode)
Inputs:	int chassis	The chassis number.
	int mode	The access mode of the file, which is defined in the include file fcntl.h. The mode passed must be O_RDONLY.
Outputs:	None
Returns:	Handle to the open status file	Successful.
	-1	An error occurred.
Includes:	gfdstatu.h

Description

The gfdOpenStatusFile( ) function prepares a status file for reading by other functions. This routine creates the name of the status file and attempts to open it. The path for the status file is obtained from the GFAX environment variable. Low-level functions, such as gfdReadStatusFileHeader and gfdReadStatusFileRecord, cannot be used unless gfdOpenStatusFile is called first successfully.

Example

#include "gfdstatu.h"  
int chassis = 1; /* Default to one chassis*/  
int status_fid;  
status_fid = gfdOpenStatusFile(chassis,O_RDONLY);  
if (status_fid < 0)  
{  
   printf ("No status file open\n");  
   exit (1);  
}

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