/* Copyright (C) 1994,1995,1996,1997,2005 Free Software Foundation, Inc.   This file is part of the GNU C Library.   The GNU C Library is free software; you can redistribute it and/or   modify it under the terms of the GNU Lesser General Public   License as published by the Free Software Foundation; either   version 2.1 of the License, or (at your option) any later version.   The GNU C Library is distributed in the hope that it will be useful,   but WITHOUT ANY WARRANTY; without even the implied warranty of   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU   Lesser General Public License for more details.   You should have received a copy of the GNU Lesser General Public   License along with the GNU C Library; if not, write to the Free   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA   02111-1307 USA.  */#include <mach.h>#include <hurd/threadvar.h>#define GETPORT \  mach_port_t *portloc = \    (mach_port_t *) __hurd_threadvar_location (_HURD_THREADVAR_MIG_REPLY)#define reply_port (*(use_threadvar ? portloc : &global_reply_port))static int use_threadvar;static mach_port_t global_reply_port;/* These functions are called by MiG-generated code.  *//* Called by MiG to get a reply port.  */mach_port_t__mig_get_reply_port (void){  GETPORT;  if (reply_port == MACH_PORT_NULL)    reply_port = __mach_reply_port ();  return reply_port;}weak_alias (__mig_get_reply_port, mig_get_reply_port)/* Called by MiG to deallocate the reply port.  */void__mig_dealloc_reply_port (mach_port_t arg){  mach_port_t port;  GETPORT;  port = reply_port;  reply_port = MACH_PORT_NULL;	/* So the mod_refs RPC won't use it.  */  if (MACH_PORT_VALID (port))    __mach_port_mod_refs (__mach_task_self (), port,			  MACH_PORT_RIGHT_RECEIVE, -1);}weak_alias (__mig_dealloc_reply_port, mig_dealloc_reply_port)/* Called by mig interfaces when done with a port.  Used to provide the   same interface as needed when a custom allocator is used.  */void__mig_put_reply_port(mach_port_t port){  /* Do nothing.  */}weak_alias (__mig_put_reply_port, mig_put_reply_port)/* Called at startup with STACK == NULL.  When per-thread variables are set   up, this is called again with STACK set to the new stack being switched   to, where per-thread variables should be set up.  */void__mig_init (void *stack){  use_threadvar = stack != 0;  if (use_threadvar)    {      /* Recycle the reply port used before multithreading was enabled.  */      mach_port_t *portloc = (mach_port_t *)	__hurd_threadvar_location_from_sp (_HURD_THREADVAR_MIG_REPLY, stack);      *portloc = global_reply_port;      global_reply_port = MACH_PORT_NULL;    }}weak_alias (__mig_init, mig_init)