NAME
lfs_segwait —
wait until a segment is
written
LIBRARY
library “libc”
SYNOPSIS
#include
<sys/types.h>
int
lfs_segwait(fsid_t
*fsidp, struct timeval
*tv);
DESCRIPTION
lfs_segwait()
blocks until a new segment is acquired for writing by the file system
specified by *fsidp or if *fsidp
is -1, until a segment is acquired for writing by any LFS file system.
If timeout is non-zero,
lfs_segwait()
will return after timeout milliseconds regardless of
whether a new segment has been designated for writing or not.
RETURN VALUES
lfs_segwait() returns 0 if a new segment
was acquired; 1 if it timed out; or -1 on error.
ERRORS
An error return from lfs_segwait()
indicates:
- [
EFAULT] - fsidp points outside the process's allocated address space.
- [
EINTR] - A signal was delivered before the time limit expired and before a new segment was designated for writing.
- [
EINVAL] - The specified time limit is negative.
SEE ALSO
lfs_bmapv(2), lfs_markv(2), lfs_segclean(2), lfs_cleanerd(8)
HISTORY
The lfs_segwait() function call appeared
in 4.4BSD.