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glibc  2.9
mig-reply.c
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00001 /* Copyright (C) 1992, 1997 Free Software Foundation, Inc.
00002    This file is part of the GNU C Library.
00003 
00004    The GNU C Library is free software; you can redistribute it and/or
00005    modify it under the terms of the GNU Lesser General Public
00006    License as published by the Free Software Foundation; either
00007    version 2.1 of the License, or (at your option) any later version.
00008 
00009    The GNU C Library is distributed in the hope that it will be useful,
00010    but WITHOUT ANY WARRANTY; without even the implied warranty of
00011    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00012    Lesser General Public License for more details.
00013 
00014    You should have received a copy of the GNU Lesser General Public
00015    License along with the GNU C Library; if not, write to the Free
00016    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
00017    02111-1307 USA.  */
00018 
00019 #include <mach.h>
00020 
00021 /* These functions are called by MiG-generated code.  */
00022 
00023 static mach_port_t reply_port;
00024 
00025 /* Called by MiG to get a reply port.  */
00026 mach_port_t
00027 __mig_get_reply_port (void)
00028 {
00029   if (reply_port == MACH_PORT_NULL)
00030     reply_port = __mach_reply_port ();
00031 
00032   return reply_port;
00033 }
00034 
00035 /* Called by MiG to deallocate the reply port.  */
00036 void
00037 __mig_dealloc_reply_port (void)
00038 {
00039   mach_port_t port = reply_port;
00040   reply_port = MACH_PORT_NULL;     /* So the mod_refs RPC won't use it.  */
00041   __mach_port_mod_refs (__mach_task_self (), port,
00042                      MACH_PORT_RIGHT_RECEIVE, -1);
00043 }
00044 
00045 
00046 /* Called at startup with CPROC == NULL.  cthreads has a different version
00047    of this function that is sometimes called with a `cproc_t' pointer.  */
00048 void
00049 __mig_init (void *cproc)
00050 {
00051   if (cproc == 0)
00052     reply_port = MACH_PORT_NULL;
00053 }