The xrootd preload library

The xrootd preload library allows standard POSIX I/O calls to xrootd servered files in stead of calls to the local file system.

Using the preload library

The script xrdprel should be used to run a command using the xrootd preload library. The script sets the proper environment variables (LD_LIBRARY_PATH, LD_PRELOAD)
and then executes the provided command. The usage is:

xrdprel [-g] [-h]  _command_ _args_

_command_ and _args_ are the user command and and its arguments
-y: prints a help 
-g: use a virtual mountpoint, which means file names starting with /glast/ are assumed to be 
    xrootd files.  

/afs/slac.stanford.edu/g/glast/applications/xrootd/<REL>/bin/xrdprel