LFS_SEGWAIT(2)            NetBSD System Calls Manual            LFS_SEGWAIT(2)

NAME
     lfs_segwait -- wait until a segment is written

LIBRARY
     Standard C Library (libc, -lc)

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
     filesystem specified by *fsidp or if *fsidp is -1, until a segment is
     acquired for writing by any LFS filesystem.

     If timeout is non-zero, lfs_segwait() will return after timeout millisec-
     onds 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.

NetBSD 5.0_STABLE                May 23, 2000                NetBSD 5.0_STABLE
