This function will return the status on the specified FILE after it has been opened or created.
Input:
fd : FILE
FILE descriptor for the file retrieved from fsFileOpen or fsFileCreate .
Returns: INT
0
|
- File is open and ready for use.
|
-1
|
- Media not open.
|
-7
|
- Media is full.
|
-8
|
- File is not open.
|
-16
|
- Media not present.
|
-17
|
- Media communication error (card not supported).
|
-22
|
- Media is busy.
|
-23
|
- Media is write protected.
|
-24
|
- Unknown file system.
|
-33
|
- Too many files open.
|
-38
|
- File is no longer accessible and must be closed.
|
Declaration:
FUNCTION fsFileStatus : INT;
VAR_INPUT
fd : FILE;
END_VAR;
Example:
...
IF fsFileExists(name := "gpslog.dat") THEN
fd := fsFileOpen(name := "gpslog.dat");
ELSE
fd := fsFileCreate(name := "gpslog.dat");
END_IF;
IF fsFileStatus(fd := fd) = 0 THEN
...
fsFileWrite(fd := fd, buffer := ADDR(gps.latitude), length := SIZEOF(gps.latitude));
fsFileWrite(fd := fd, buffer := ADDR(gps.longitude), length := SIZEOF(gps.longitude));
...
fsFileClose(fd := fd);
ELSE
...
END_IF;
...
| 
