Initial revision

1 files changed, 62 insertions, 0 deletions

diff --git a/libpager/object-init.c b/libpager/object-init.c
new file mode 100644
index 00000000..7cea9721
--- /dev/null
+++ b/libpager/object-init.c
@@ -0,0 +1,62 @@
+/* Implementation of memory_object_init for pager library
+   Copyright (C) 1994 Free Software Foundation
+
+   This program is free software; you can redistribute it and/or
+   modify it under the terms of the GNU General Public License as
+   published by the Free Software Foundation; either version 2, or (at
+   your option) any later version.
+
+   This program 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
+   General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program; if not, write to the Free Software
+   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
+
+/* This is called by a kernel to initialize the memory object;
+   this routine is a dual of seqnos_memory_object_terminate.  */
+kern_return_t
+seqnos_memory_object_init (mach_port_t object, 
+			   mach_port_seqno_t seqno,
+			   mach_port_t control,
+			   mach_port_t name,
+			   vm_size_t pagesize)
+{
+  struct pager *p;
+
+  if (!(p = check_port_type (object, pager_port_type)))
+    return EOPNOTSUPP;
+
+  mutex_lock (&p->interlock);
+
+  if (p->pager_state != NOTINIT)
+    {
+      printf ("pager dup init");
+      goto out;
+    }
+  if (pagesize != __vm_page_size)
+    {
+      printf ("incg init: bad page size");
+      goto out;
+    }
+
+  _pager_wait_for_seqno (p, seqno);
+
+  p->memobjcntl = control;
+  p->memobjname = name;
+  if (p->pagemap || p->pagemapsize)
+    panic ("pagemap failure");
+
+  /* Tell the kernel we're ready */
+  /* XXX Don't cache for now. */
+  memory_object_ready (control, 0, MEMORY_OBJECT_COPY_NONE);
+
+  p->pager_state = NORMAL;
+  mutex_unlock (&p->interlock);
+
+ out:
+  _pager_done_with_port (p);
+  return 0;
+}