diff options
Diffstat (limited to 'libpager')
| -rw-r--r-- | libpager/pager-create.c | 50 |
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; +} + + |