source3/lib/util_procid.c

   1 /*
   2  * Unix SMB/CIFS implementation.
   3  * Samba utility functions
   4  * Copyright (C) Andrew Tridgell 1992-1998
   5  * Copyright (C) Jeremy Allison 2001-2007
   6  * Copyright (C) Simo Sorce 2001
   7  * Copyright (C) Jim McDonough <jmcd@us.ibm.com> 2003
   8  * Copyright (C) James Peach 2006
   9  *
  10  * This program is free software; you can redistribute it and/or modify
  11  * it under the terms of the GNU General Public License as published by
  12  * the Free Software Foundation; either version 3 of the License, or
  13  * (at your option) any later version.
  14  *
  15  * This program is distributed in the hope that it will be useful,
  16  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  17  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18  * GNU General Public License for more details.
  19  *
  20  * You should have received a copy of the GNU General Public License
  21  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  22  */
  23
  24 #include "util_procid.h"
  25 #include "lib/util/debug.h"
  26 #include "lib/messages_dgm.h"
  27
  28 pid_t procid_to_pid(const struct server_id *proc)
  29 {
  30         return proc->pid;
  31 }
  32
  33 static uint32_t my_vnn = NONCLUSTER_VNN;
  34
  35 void set_my_vnn(uint32_t vnn)
  36 {
  37         DEBUG(10, ("vnn pid %d = %u\n", (int)getpid(), (unsigned int)vnn));
  38         my_vnn = vnn;
  39 }
  40
  41 uint32_t get_my_vnn(void)
  42 {
  43         return my_vnn;
  44 }
  45
  46 struct server_id pid_to_procid(pid_t pid)
  47 {
  48         uint64_t unique = 0;
  49         int ret;
  50
  51         ret = messaging_dgm_get_unique(pid, &unique);
  52         if (ret != 0) {
  53                 DBG_NOTICE("messaging_dgm_get_unique failed: %s\n",
  54                            strerror(ret));
  55         }
  56
  57         return (struct server_id) {
  58                 .pid = pid, .unique_id = unique, .vnn = my_vnn };
  59 }
  60
  61 bool procid_valid(const struct server_id *pid)
  62 {
  63         return (pid->pid != (uint64_t)-1);
  64 }
  65
  66 bool procid_is_local(const struct server_id *pid)
  67 {
  68         return pid->vnn == my_vnn;
  69 }