NAME

       rfio_stat - get information about a file or directory

SYNOPSIS

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

       int rfio_stat (const char *path, struct stat *statbuf);
       int rfio_fstat (int s, struct stat *statbuf);
       int rfio_lstat (const char *path, struct stat *statbuf);
       int rfio_mstat (const char *path, struct stat *statbuf);
       int rfio_mstat_reset ();
       int rfio_end ();

       Under Linux, for large files:
       #define _LARGEFILE64_SOURCE
       #include <sys/types.h>
       #include "rfio_api.h"

       int rfio_stat64 (const char *path, struct stat64 *statbuf);
       int rfio_fstat64 (int s, struct stat64 *statbuf);
       int rfio_lstat64 (const char *path, struct stat64 *statbuf);
       int rfio_mstat64 (const char *path, struct stat64 *statbuf);

       For large files, under other systems:
       #include <sys/types.h>
       #include "rfio_api.h"

       int rfio_stat64 (const char *path, struct stat64 *statbuf);
       int rfio_fstat64 (int s, struct stat64 *statbuf);
       int rfio_lstat64 (const char *path, struct stat64 *statbuf);
       int rfio_mstat64 (const char *path, struct stat64 *statbuf);

DESCRIPTION

       rfio_stat gets information about a file or directory.

       rfio_lstat  is identical to rfio_stat except for symbolic links. In this case, the link itself is statted
       and not followed.

       rfio_fstat is identical to rfio_stat but works on the file descriptor s returned by rfio_open.

       rfio_mstat is identical to rfio_stat but keeps the connection open to the server unless  there  are  more
       than  MAXMCON  connections  already opened. This is useful when issuing a series of stat calls.  The last
       rfio_mstat call should be followed by a call to rfio_end.

       rfio_mstat_reset is to be used when your program is forking. In such a  case  the  permanent  connections
       opened  with  rfio_mstat  become shared between the parent and the child. Use rfio_mstat_reset to perform
       the necessary reset and close of the socket file descriptor in the parent or the child  in  order  to  be
       sure that only of them will receice an answer from the RFIO daemon.

       See NOTES section below.

       path   specifies the logical pathname relative to the current directory or the full pathname.

       statbuf
              is a pointer to a stat structure, receiving result of your query.

       The  64  bits  functions  must  be  used  for  large  files. They have the same syntax as the normal stat
       functions except that they use a stat64 structure.

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.

NOTES

       Multiple  connections using rfio_mstat are thread-safe but not process-wide, therefore a forked child can
       share file descriptors opened with rfio_mstat by its parent. Use rfio_mstat_reset in such case.

       Multiple connections behaviour is undefined if you work in a multi-threaded environment and with  threads
       not created using the LCG's Cthread interface.

ERRORS

       ENOENT       The named file/directory does not exist or is a null pathname.

       EBADF        s is not a valid file descriptor.

       EACCES       Search permission is denied on a component of the path prefix.

       EFAULT       path or statbuf 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_chmod(3), rfio_chown(3), Cthread(3)

AUTHOR

       LCG Grid Deployment Team