HP-UX Reference (11i v2 07/12) - 7 Device (Special) Files, 9 General Information, Index (vol 10)

vxfsio(7) vxfsio(7)

EXAMPLES

The following example shows how application code can use

VX_GETFSOPT to ﬁnd out if a JFS ﬁle system

was mounted with the

-o delaylog option:

int arg = 0;

int fd;

ioctl(fd, VX_GETFSOPT, &arg);

if (arg & VX_FSO_DELAYLOG) {

printf("FS mounted with delaylog option!\n");

}

DIAGNOSTICS

Operation failures can return any of the following values in

errno:

[EACCESS] The calling process does not have write access to the ﬁle speciﬁed by

fildes.

[EAGAIN] The ﬁle system is not currently frozen.

[EBADF] The

fildes argument is not a valid ﬁle descriptor open for writing.

[EFAULT] An address speciﬁed by an argument is invalid.

[EFBIG] An attempt was made to reserve space larger than the maximum ﬁle size limit for this pro-

cess.

[EINVAL] The command or argument is invalid.

[EIO] An I/O error occurred while attempting to perform the operation.

[ENODEV] The ﬁle speciﬁed by

fildes is not the root directory of a vxfs ﬁle system.

[ENOSPC] Requested space could not be obtained.

[EPERM] The process does not have appropriate privilege.

[EROFS] The ﬁle system is mounted read-only.

[ETIMEDOUT]

The

VX_FREEZE timeout expired before this call.