1 files changed, 87 insertions, 0 deletions
diff --git a/REORG.TODO/sysdeps/mach/hurd/mig-reply.c b/REORG.TODO/sysdeps/mach/hurd/mig-reply.c
new file mode 100644
index 0000000000..dde3fbf86c
--- /dev/null
+++ b/REORG.TODO/sysdeps/mach/hurd/mig-reply.c
@@ -0,0 +1,87 @@
+/* Copyright (C) 1994-2017 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, see
+   <http://www.gnu.org/licenses/>.  */
+
+#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)