source: branches/samba-3.5.x/source3/librpc/idl/notify.idl

#include "idl_types.h"

/*
   IDL structures for notify change code

   this defines the structures used in the notify database code, and
   the change notify buffers
*/

[
  pointer_default(unique)
]
interface notify
{

        /* structure used in the notify database */
        typedef [public] struct {
                server_id server;
                uint32 filter; /* filter to apply in this directory */
                uint32 subdir_filter; /* filter to apply in child directories */
                uint32 dir_fd;   /* fd of open directory */
                file_id dir_id;  /* file_id of open directory */
                utf8string path;
                uint32 path_len; /* saves some computation on search */
                pointer private_data;
        } notify_entry;

        typedef [public] struct {
                uint32 num_entries;
                notify_entry entries[num_entries];
        } notify_entry_array;

        /*
          to allow for efficient search for matching entries, we
          divide them by the directory depth, with a separate array
          per depth. The entries within each depth are sorted by path,
          allowing for a bisection search.

          The max_mask and max_mask_subdir at each depth is the
          bitwise or of the filters and subdir filters for all entries
          at that depth. This allows a depth to be quickly skipped if
          no entries will match the target filter         
        */
        typedef struct {
                uint32 max_mask;
                uint32 max_mask_subdir;
                uint32 num_entries;
                notify_entry entries[num_entries];
        } notify_depth;

        typedef [public] struct {
                uint32 num_depths;
                notify_depth depth[num_depths];
        } notify_array;

        /* structure sent between servers in notify messages */
        typedef [public] struct {
                uint32 action;
                utf8string path;
                pointer private_data;
        } notify_event;

}