rfio_opendir (3)

#include <sys/types.h>

#include "rfio_api.h"

RDIR *rfio_opendir (const char *path);

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.

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).

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.

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.

Castor_limits(4), rfio_closedir(3), rfio_readdir(3), rfio_rewinddir(3)

LCG Grid Deployment Team