golang: how to check if a write fails due to insufficient disk space-CodePudding

If a go program return error with Write(), it returns something like this:

write failed(*fs.PathError): write mnt/test.dat: no space left on device

Is there anyway other than string matching for 'no space left on device', to know that a PathError is due to insufficient disk space?

Note: I am using Linux, and not caring about how it works on Windows.

CodePudding user response：

Is there anyway other than string matching for 'no space left on device', to know that a PathError is due to insufficient disk space?

No.

CodePudding user response：

Yes, it may be sensitive to the OS you compile for but you can check if the error wraps syscall.ENOSPC.

_, err := file.Write(stuff)
if err != nil {
    if errors.Is(err, syscall.ENOSPC) {
        // There was no space left on the device
        return "get more space"
    }
    // something else is wrong
}