lfc_readdirxr(3) [debian man page]

LFC_READDIRXR(3)					       LFC Library Functions						  LFC_READDIRXR(3)

NAME

       lfc_readdirxr - read LFC directory opened by lfc_opendir in the name server

SYNOPSIS

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

       struct lfc_direnrep *lfc_readdirxr (lfc_DIR *dirp, char *se)

DESCRIPTION

       lfc_readdirxr  reads  the LFC directory opened by lfc_opendir in the name server.  This routine returns a pointer to a structure containing
       the current directory entry (basename, guid and filesize) and the replica information.

       struct lfc_rep_info {
	    u_signed64	   fileid;
	    char      status;
	    char      *host;
	    char      *sfn;
       };

       struct lfc_direnrep {
	    u_signed64	   fileid;
	    char      guid[CA_MAXGUIDLEN+1];
	    mode_t	   filemode;
	    u_signed64	   filesize;
	    int       nbreplicas;
	    struct lfc_rep_info *rep;	  /* array of replica info structures */
	    unsigned short d_reclen; /* length of this entry */
	    char      d_name[1];     /* basename in variable length */
       };

       lfc_readdirxr caches a variable number of such entries, depending on the filename size, to minimize the number  of  requests  to  the  name
       server.

       dirp   specifies the pointer value returned by lfc_opendir.

       se     allows to restrict the replica entries to a given SE.

RETURN VALUE

       This  routine returns a pointer to a structure containing the current directory entry if the operation was successful or NULL if the end of
       the directory was reached or if the operation failed. When the end of the directory is encountered, serrno is not changed. If the operation
       failed, serrno is set appropriately.

       As lfc_readdirxr returns a null pointer both at the end of the directory and on error, an application wishing to check for error situations
       should set serrno to 0, then call lfc_readdirxr, then check serrno and if it is non-zero, assume an error has occurred.

ERRORS

       EBADF	    File descriptor in DIR structure is invalid.

       ENOMEM	    Memory could not be allocated for unmarshalling the reply.

       EFAULT	    dirp is a NULL pointer.

       EINVAL	    The length of se exceeds CA_MAXHOSTNAMELEN.

       SECOMERR     Communication error.

       ENSNACT	    Name server is not running or is being shutdown.

SEE ALSO

       lfc_closedir(3), lfc_opendirg(3), lfc_rewinddir(3)

AUTHOR

       LCG Grid Deployment Team

LFC
								      $Date$							  LFC_READDIRXR(3)

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LFC_GETREPLICAS(3)					       LFC Library Functions						LFC_GETREPLICAS(3)

NAME

       lfc_getreplicas - get the replica entries associated with a list of GUIDs

SYNOPSIS

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

       int lfc_getreplicas (int nbguids, const char **guids, const char *se, int *nbentries, struct lfc_filereplicas **rep_entries)

DESCRIPTION

       lfc_getreplicas gets the replica entries associated with a list of GUIDs.

       nbguids
	      specifies the number of guids in the array guids.

       guids  specifies the list of Grid Unique IDentifiers.

       se     allows to restrict the replica entries to a given SE.

       nbentries
	      will be set to the number of entries in the array of replicas.

       rep_entries
	      will  be	set  to the address of an array of lfc_filereplicas structures allocated by the API. The client application is responsible
	      for freeing the array when not needed anymore.

       struct lfc_filereplicas {
	    char      guid[CA_MAXGUIDLEN+1];
	    int       errcode;
	    u_signed64	   filesize;
	    time_t	   ctime;	  /* GUID creation time */
	    char      csumtype[3];
	    char      csumvalue[33];
	    time_t	   r_ctime;  /* replica creation time */
	    time_t	   r_atime;  /* last access to replica */
	    char      status;
	    char      host[CA_MAXHOSTNAMELEN+1];
	    char      sfn[CA_MAXSFNLEN+1];
       };

RETURN VALUE

       This routine returns 0 if the operation was successful or -1 if the operation failed. In the latter case, serrno is set appropriately.

ERRORS

       ENOENT	    The named guid does not exist.

       ENOMEM	    Memory could not be allocated for marshalling the request or unmarshalling the reply.

       EFAULT	    guids, nbentries or rep_entries is a NULL pointer.

       EINVAL	    nbguids is not strictly positive, the length of one of the guids exceeds CA_MAXGUIDLEN or the length of se exceeds CA_MAXHOST-
		    NAMELEN.

       SENOSHOST    Host unknown.

       SENOSSERV    Service unknown.

       SEINTERNAL   Database error.

       SECOMERR     Communication error.

       ENSNACT	    Name server is not running or is being shutdown.

SEE ALSO

       Castor_limits(4), lfc_chdir(3)

AUTHOR

       LCG Grid Deployment Team

LFC
					       $Date: 2010-09-13 07:52:37 +0200 (Mon, 13 Sep 2010) $				LFC_GETREPLICAS(3)

Linux and UNIX Man Pages

lfc_readdirxr(3) [debian man page]

Check Out this Related Man Page