com.emc.ecs.nfsclient.nfs

Class NfsFsInfo

java.lang.Object

com.emc.ecs.nfsclient.nfs.NfsFsInfo

public class NfsFsInfo
extends java.lang.Object

Holder for nonvolatile file system state information and general information about the NFS version 3 protocol server implementation, as specified by RFC 1813 (https://tools.ietf.org/html/rfc1813).

Field Summary

Fields

Modifier and Type	Field and Description
long	dtpref The preferred size of a READDIR request.
long	maxfilesize The maximum size of a file on the file system.
long	properties A bit mask of file system properties.
long	rtmax The maximum size in bytes of a READ request supported by the server.
long	rtmult The suggested multiple for the size of a READ request.
long	rtpref The preferred size of a READ request.
NfsTime	time_delta The server time granularity.
long	wtmax The maximum size of a WRITE request supported by the server.
long	wtmult The suggested multiple for the size of a WRITE request.
long	wtpref The preferred size of a WRITE request.

Constructor Summary

Constructors

Constructor and Description
NfsFsInfo(Xdr xdr) Unmarshalls volatile file system state information, as specified by RFC 1813 (https://tools.ietf.org/html/rfc1813).

Method Summary

Modifier and Type	Method and Description
java.lang.String	toString()

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Field Detail

rtmax

public long rtmax

The maximum size in bytes of a READ request supported by the server. Any READ with a number greater than rtmax will result in a short read of rtmax bytes or less.

rtpref

public long rtpref

The preferred size of a READ request. This should be the same as rtmax unless there is a clear benefit in performance or efficiency.

rtmult

public long rtmult

The suggested multiple for the size of a READ request.

wtmax

public long wtmax

The maximum size of a WRITE request supported by the server. In general, the client is limited by wtmax since there is no guarantee that a server can handle a larger write. Any WRITE with a count greater than wtmax will result in a short write of at most wtmax bytes.

wtpref

public long wtpref

The preferred size of a WRITE request. This should be the same as wtmax unless there is a clear benefit in performance or efficiency.

wtmult

public long wtmult

The suggested multiple for the size of a WRITE request.

dtpref

public long dtpref

The preferred size of a READDIR request.

maxfilesize

public long maxfilesize

The maximum size of a file on the file system.

time_delta

public NfsTime time_delta

The server time granularity. When setting a file time using SETATTR, the server guarantees only to preserve times to this accuracy. If this is {0, 1}, the server can support nanosecond times, {0, 1000000} denotes millisecond precision, and {1, 0} indicates that times are accurate only to the nearest second.

properties

public long properties

A bit mask of file system properties. The following values are defined:

    FSF_LINK = 0x0001
        If this bit is 1 (TRUE), the file system supports
        hard links.
    FSF_SYMLINK = 0x0002
        If this bit is 1 (TRUE), the file system supports
        symbolic links.
    FSF_HOMOGENEOUS = 0x0008
        If this bit is 1 (TRUE), the information returned by
        PATHCONF is identical for every file and directory
        in the file system. If it is 0 (FALSE), the client
        should retrieve PATHCONF information for each file
        and directory as required.
    FSF_CANSETTIME = 0x0010
        If this bit is 1 (TRUE), the server will set the
        times for a file via SETATTR if requested (to the
        accuracy indicated by time_delta). If it is 0
        (FALSE), the server cannot set times as requested.
 

Constructor Detail

NfsFsInfo

public NfsFsInfo(Xdr xdr)

Unmarshalls volatile file system state information, as specified by RFC 1813 (https://tools.ietf.org/html/rfc1813).

Parameters:

xdr -

Method Detail

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object