diff options
Diffstat (limited to 'libpager/no-senders.c')
| -rw-r--r-- | libpager/no-senders.c | 52 |
1 files changed, 52 insertions, 0 deletions
diff --git a/libpager/no-senders.c b/libpager/no-senders.c new file mode 100644 index 00000000..c75cb7e9 --- /dev/null +++ b/libpager/no-senders.c @@ -0,0 +1,52 @@ +/* Called when a nosenders notification happens + 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. */ + + +void +pager_no_senders (struct pager *p, + mach_port_seqno_t seqno, + mach_port_mscount_t mscount); +{ + mach_port_t old; + int ret; + + mutex_lock (&p->interlock); + _pager_wait_for_seqno (p, seqno); + _pager_release_seqno (p); + + if (mscount > p->mscount) + { + printf ("pager strange no senders\n"); + done_with_port (p); + } + else if (mscount == p->mscount) + done_with_port (p); + else + { + /* Request a new notification. The sync value is because we might + have accounted for a new sender but not actually made the send right + yet. */ + mach_port_request_notification (mach_task_self (), p->port.port, + MACH_NOTIFY_NO_SENDERS, p->mscount, + p->port.port, + MACH_MSG_TYPE_MAKE_SEND_ONCE, &old); + if (old) + mach_port_deallocate (mach_task_self (), old); + } +} + + |