source3/include/serverid.h

   1 /*
   2    Unix SMB/CIFS implementation.
   3    Implementation of a reliable server_exists()
   4    Copyright (C) Volker Lendecke 2010
   5
   6    This program is free software; you can redistribute it and/or modify
   7    it under the terms of the GNU General Public License as published by
   8    the Free Software Foundation; either version 3 of the License, or
   9    (at your option) any later version.
  10
  11    This program is distributed in the hope that it will be useful,
  12    but WITHOUT ANY WARRANTY; without even the implied warranty of
  13    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14    GNU General Public License for more details.
  15
  16    You should have received a copy of the GNU General Public License
  17    along with this program.  If not, see <http://www.gnu.org/licenses/>.
  18 */
  19
  20 #ifndef __SERVERID_H__
  21 #define __SERVERID_H__
  22
  23 #include "includes.h"
  24 #include "lib/dbwrap/dbwrap.h"
  25
  26 /*
  27  * Register a server with its unique id
  28  */
  29 bool serverid_register(const struct server_id id, uint32_t msg_flags);
  30
  31 /*
  32  * De-register a server with its unique id
  33  */
  34 bool serverid_deregister(const struct server_id id);
  35
  36 /*
  37  * Check existence of a server id
  38  */
  39 bool serverid_exists(const struct server_id *id);
  40
  41 /*
  42  * Check existence of a list of server ids
  43  */
  44 bool serverids_exist(const struct server_id *ids, int num_ids, bool *results);
  45
  46 /*
  47  * Walk the list of server_ids registered
  48  */
  49 bool serverid_traverse(int (*fn)(struct db_record *rec,
  50                                  const struct server_id *id,
  51                                  uint32_t msg_flags,
  52                                  void *private_data),
  53                        void *private_data);
  54
  55 /*
  56  * Walk the list of server_ids registered read-only
  57  */
  58 bool serverid_traverse_read(int (*fn)(const struct server_id *id,
  59                                       uint32_t msg_flags,
  60                                       void *private_data),
  61                             void *private_data);
  62 /*
  63  * Ensure CLEAR_IF_FIRST works fine, to be called from the parent smbd
  64  */
  65 bool serverid_parent_init(TALLOC_CTX *mem_ctx);
  66
  67 /*
  68  * Get a random unique_id and make sure that it is not
  69  * SERVERID_UNIQUE_ID_NOT_TO_VERIFY
  70  */
  71 uint64_t serverid_get_random_unique_id(void);
  72
  73 #endif