lfs_segwait(2) - NetBSD Manual Pages

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LFS_SEGWAIT(2)            NetBSD Programmer's 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 ac-
     quired 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_cleanerd(8), lfs_bmapv(2), lfs_markv(2), lfs_segclean(2)


HISTORY

     The lfs_segwait() function call appeared in 4.4BSD.

NetBSD 1.5.2                     May 23, 2000                                1