Initial revision

2 files changed, 87 insertions, 0 deletions

diff --git a/libpager/data-request.c b/libpager/data-request.c
new file mode 100644
index 00000000..4280b4e2
--- /dev/null
+++ b/libpager/data-request.c
@@ -0,0 +1,17 @@
+/* Implementation of 
+   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. */
+
diff --git a/libpager/priv.h b/libpager/priv.h
new file mode 100644
index 00000000..ddeebc14
--- /dev/null
+++ b/libpager/priv.h
@@ -0,0 +1,70 @@
+/* Private data 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. */
+
+struct pager
+{
+  struct port_info port;
+  struct user_pager_info *upi;
+
+  enum
+    {
+      NOTINIT,			/* before memory_object_init */
+      NORMAL,			/* while running */
+      SHUTDOWN,			/* ignore all further requests */
+    } pager_state;
+  
+  struct mutex interlock;
+  struct condition wakeup;
+
+  struct lock_request *lock_requests; /* pending lock requests */
+  
+  /* Interface ports */
+  memory_object_control_t memobjcntl;
+  memory_object_name_t memobjname;
+  
+  int mscount;
+  
+  int seqno;
+
+  int noterm;			/* number of threads blocking termination */
+
+  struct pager *next, **pprev;
+
+  int termwaiting:1;
+  int waitingforseqno:1;
+  
+  char *pagemap;
+  int pagemapsize;
+};
+
+struct lock_request
+{
+  struct lock_request *next, **prevp;
+  vm_address_t start, end;
+  int pending_writes;
+  int locks_pending;
+  int threads_waiting;
+};
+
+enum page_errors
+{
+  PAGE_NOERR,
+  PAGE_ENOSPC,
+  PAGE_EIO,
+  PAGE_EDQUOT,
+};
+