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authorMichael I. Bushnell <mib@gnu.org>1994-01-13 20:58:58 +0000
committerMichael I. Bushnell <mib@gnu.org>1994-01-13 20:58:58 +0000
commitd2621ec8179cf3bf9c14bfe39e0d173ae78e6695 (patch)
tree2d8b08921785a81c59d14b98055fe3c42f578b2d
parent0a706c22858b269abe96d95eb46416d882606220 (diff)
Formerly pager-create.c.~2~
-rw-r--r--libpager/pager-create.c50
1 files changed, 50 insertions, 0 deletions
diff --git a/libpager/pager-create.c b/libpager/pager-create.c
new file mode 100644
index 00000000..acd53beb
--- /dev/null
+++ b/libpager/pager-create.c
@@ -0,0 +1,50 @@
+/* Pager creation
+ 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 *
+pager_create (struct user_pager_info *upi)
+{
+ struct pager *p;
+
+ p = allocate_port (sizeof (struct pager), pager_port_type);
+
+ p->upi = upi;
+ p->pager_state = NOTINIT;
+ mutex_init (&p->interlock);
+ condition_init (&p->wakeup);
+ p->lock_requests = 0;
+ p->memobjcntl = MACH_PORT_NULL;
+ p->memobjname = MACH_PORT_NULL;
+ p->mscount = 0;
+ p->seqno = -1;
+ p->noterm = 0;
+ p->termwaiting = 0;
+ p->waitingforseqno = 0;
+ p->pagemap = 0;
+ p->pagemapsize = 0;
+
+ spin_lock (&pagerlistlock);
+ p->next = _pager_all_pagers;
+ p->prevp = &_pager_all_pagers;
+ _pager_all_pagers = p;
+ if (p->next)
+ p->next->prevp = &p->next;
+ spin_unlock (&pagerlistlock);
+ return p;
+}
+
+