LFS_SEGWAIT(2)						      BSD 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 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.

BSD
								   May 23, 2000 							       BSD