dpns_listreplica(3)

1DPNS_LISTREPLICA(3)         DPNS Library Functions         DPNS_LISTREPLICA(3)
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3
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NAME

6       dpns_listreplica - list replica entries for a given file
7

SYNOPSIS

9       #include <sys/types.h>
10       #include "dpns_api.h"
11
12       struct dpns_filereplica *dpns_listreplica (const char *path, const char
13       *guid, int flags, dpns_list *listp)
14

DESCRIPTION

16       dpns_listreplica lists replica entries for a given file.  This  routine
17       returns a pointer to a structure containing the current replica entry.
18
19       struct dpns_filereplica {
20            u_signed64     fileid;
21            u_signed64     nbaccesses;
22            time_t         atime;         /* last access to replica */
23            time_t         ptime;         /* replica pin time */
24            char      status;
25            char      f_type;        /* 'V' for Volatile, 'P' for Permanent */
26            char      poolname[CA_MAXPOOLNAMELEN+1];
27            char      host[CA_MAXHOSTNAMELEN+1];
28            char      fs[80];
29            char      sfn[CA_MAXSFNLEN+1];
30       };
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32       path   specifies the logical pathname.
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34       guid   specifies the Grid Unique IDentifier.
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36       flags  may be one of the following constant:
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38              CNS_LIST_BEGIN
39                     the  first  call must have this flag set to allocate buf‐
40                     fers and initialize pointers.
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42              CNS_LIST_CONTINUE
43                     all the following calls must have this flag set.
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45              CNS_LIST_END
46                     final call to terminate the list and free resources.
47

RETURN VALUE

49       This routine returns a pointer to a structure  containing  the  current
50       replica  entry  if  the operation was successful or NULL if all entries
51       have been returned or if the operation failed. In the latter case, ser‐
52       rno is set appropriately.
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EXAMPLES

55       A C program listing the replicas fo a given sfn could look like:
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57            int flags;
58            dpns_list list;
59            struct dpns_filereplica *lp;
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61            flags = CNS_LIST_BEGIN;
62            while ((lp = dpns_listreplica (sfn, NULL, flags, &list)) != NULL) {
63                 flags = CNS_LIST_CONTINUE;
64                 /* process the entry */
65                 .....
66            }
67            (void) dpns_listreplica (sfn, NULL, CNS_LIST_END, &list);
68

ERRORS

70       ENOENT       The named file does not exist.
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72       EACCES       Search  permission  is denied on a component of the parent
73                    directory.
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75       ENOMEM       Memory could not be allocated for the output buffer.
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77       EFAULT       path and guid  are  NULL  pointers  or  listp  is  a  NULL
78                    pointer.
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80       ENOTDIR      A component of path prefix is not a directory.
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82       EINVAL       The  length of guid exceeds CA_MAXGUIDLEN or path and guid
83                    are both given and they point at a different file.
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85       ENAMETOOLONG The length of path exceeds CA_MAXPATHNAMELEN.
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87       SENOSHOST    Host unknown.
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89       SENOSSERV    Service unknown.
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91       SECOMERR     Communication error.
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93       ENSNACT      Name server is not running or is being shutdown.
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NAME

SYNOPSIS

DESCRIPTION

RETURN VALUE

EXAMPLES

ERRORS

SEE ALSO