1  /* Copyright (C) 1992-2023 Free Software Foundation, Inc.
       2     This file is part of the GNU C Library.
       3  
       4     The GNU C Library is free software; you can redistribute it and/or
       5     modify it under the terms of the GNU Lesser General Public
       6     License as published by the Free Software Foundation; either
       7     version 2.1 of the License, or (at your option) any later version.
       8  
       9     The GNU C Library is distributed in the hope that it will be useful,
      10     but WITHOUT ANY WARRANTY; without even the implied warranty of
      11     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
      12     Lesser General Public License for more details.
      13  
      14     You should have received a copy of the GNU Lesser General Public
      15     License along with the GNU C Library; if not, see
      16     <https://www.gnu.org/licenses/>.  */
      17  
      18  #include <mach.h>
      19  
      20  /* These functions are called by MiG-generated code.  */
      21  
      22  static mach_port_t reply_port;
      23  
      24  /* Called by MiG to get a reply port.  */
      25  mach_port_t
      26  __mig_get_reply_port (void)
      27  {
      28    if (reply_port == MACH_PORT_NULL)
      29      reply_port = __mach_reply_port ();
      30  
      31    return reply_port;
      32  }
      33  
      34  /* Called by MiG to deallocate the reply port.  */
      35  void
      36  __mig_dealloc_reply_port (void)
      37  {
      38    mach_port_t port = reply_port;
      39    reply_port = MACH_PORT_NULL;	/* So the mod_refs RPC won't use it.  */
      40    __mach_port_mod_refs (__mach_task_self (), port,
      41  			MACH_PORT_RIGHT_RECEIVE, -1);
      42  }
      43  
      44  
      45  /* Called at startup with CPROC == NULL.  cthreads has a different version
      46     of this function that is sometimes called with a `cproc_t' pointer.  */
      47  void
      48  __mig_init (void *cproc)
      49  {
      50    if (cproc == 0)
      51      reply_port = MACH_PORT_NULL;
      52  }