RFIO_OPENDIR
Section: Rfio Library Functions (3)
Updated: $Date: 2005/03/31 13:13:03 $
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NAME
rfio_opendir - open a directory
SYNOPSIS
#include <sys/types.h>
#include "rfio_api.h"
RDIR *rfio_opendir (const char *path);
DESCRIPTION
rfio_opendir
opens a directory to be used in subsequent
rfio_readdir
operations.
A
RDIR
structure and a buffer to cache the directory entries are allocated in the
client API.
- path
-
specifies the logical pathname relative to the current directory or
the full pathname.
NOTES
For LCG directories, a multi-threaded application will need to initialize itself the Cthread (LCG Thread Interface) library ; this is done by including "shift/Cthread_api.h" and calling the function Cthread_init() at the beginning. Otherwise accessing LCG directories will not be thread-safe. See Cthread(3).
RETURN VALUE
This routine returns a pointer to be used in the subsequent directory
function calls if the operation was successful or NULL if the operation
failed. In the latter case,
serrno
is set appropriately.
ERRORS
- ENOENT
-
A component of
path
prefix does not exist or
path
is a null pathname.
- EACCES
-
Search permission is denied on a component of the
path
prefix or read permission is denied on
path.
- EFAULT
-
path
is a NULL pointer.
- ENOTDIR
-
A component of
path
prefix is not a directory.
- ENAMETOOLONG
-
The length of
path
exceeds
CA_MAXPATHLEN
or the length of a
path
component exceeds
CA_MAXNAMELEN.
- SENOSHOST
-
Host unknown.
- SENOSSERV
-
Service unknown.
- SECOMERR
-
Communication error.
SEE ALSO
Castor_limits(4),
rfio_closedir(3),
rfio_readdir(3),
rfio_rewinddir(3)
AUTHOR
LCG Grid Deployment Team