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LFC_LISTREPLICAX

LFC_LISTREPLICAX

Section: LFC Library Functions (3) Updated: $Date: 2005/07/21 08:31:48 $
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NAME

lfc_listreplicax - list replica entries for a given pool/server/filesystem  

SYNOPSIS

#include <sys/types.h>
#include "lfc_api.h"

struct lfc_filereplica *lfc_listreplicax (const char *poolname, const char *server, const char *fs, int flags, lfc_list *listp)  

DESCRIPTION

lfc_listreplicax lists replica entries for a given pool/server/filesystem. This routine returns a pointer to a structure containing the current replica entry.

struct lfc_filereplica {
        u_signed64      fileid;
        u_signed64      nbaccesses;
        time_t          atime;          /* last access to replica */
        time_t          ptime;          /* replica pin time */
        char            status;
        char            f_type;         /* 'V' for Volatile, 'P' for Permanent */
        char            poolname[CA_MAXPOOLNAMELEN+1];
        char            host[CA_MAXHOSTNAMELEN+1];
        char            fs[80];
        char            sfn[CA_MAXSFNLEN+1];
};
poolname
specifies the disk pool (only meaningful for the DPM).
server
specifies the Storage Element or disk server hostname.
fs
specifies the file system (only meaningful for the DPM).
flags
may be one of the following constant:
CNS_LIST_BEGIN
the first call must have this flag set to allocate buffers and initialize pointers.
CNS_LIST_CONTINUE
all the following calls must have this flag set.
CNS_LIST_END
final call to terminate the list and free resources.
 

RETURN VALUE

This routine returns a pointer to a structure containing the current replica entry if the operation was successful or NULL if all entries have been returned or if the operation failed. In the latter case, serrno is set appropriately.  

EXAMPLES

A C program listing the files residing on a given server could look like:

        int flags;
        lfc_list list;
        struct lfc_filereplica *lp;

        flags = CNS_LIST_BEGIN;
        while ((lp = lfc_listreplicax (NULL, server, NULL, flags, &list))) {
                flags = CNS_LIST_CONTINUE;
                /* process the entry */
                .....
        }
        (void) lfc_listreplicax (NULL, server, NULL, CNS_LIST_END, &list);
 

ERRORS

ENOMEM
Memory could not be allocated for the output buffer.
EFAULT
poolname, server and fs are NULL pointers or listp is a NULL pointer.
EINVAL
The length of poolname exceeds CA_MAXPOOLNAMELEN or the length of server exceeds CA_MAXHOSTNAMELEN or the length of fs exceeds 79.
SENOSHOST
Host unknown.
SENOSSERV
Service unknown.
SECOMERR
Communication error.
ENSNACT
Name server is not running or is being shutdown.
 

SEE ALSO

Castor_limits(4), lfc_addreplica(3)


 

Index

NAME
SYNOPSIS
DESCRIPTION
RETURN VALUE
EXAMPLES
ERRORS
SEE ALSO

This document was created by man2html, using the manual pages.
Time: 21:49:15 GMT, April 16, 2011