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/* task-death.c - Task death notifications, implementation.
Copyright (C) 2004 Free Software Foundation, Inc.
Written by Marcus Brinkmann <marcus@gnu.org>
This file is part of the GNU Hurd.
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, 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
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this program; if not, write to the Free
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
02111-1307 USA. */
#if HAVE_CONFIG_H
#include <config.h>
#endif
#include <pthread.h>
#include <hurd/types.h>
#include "task-death.h"
/* A lock that protects the linked list. It also is held when
callback handlers are called. */
pthread_mutex_t hurd_task_death_notify_lock = PTHREAD_MUTEX_INITIALIZER;
/* The linked list of callback handlers. */
struct hurd_task_death_notify_list_item *hurd_task_death_notify_list;
static void *
task_death_manager (void *unused)
{
/* FIXME. Needs to be implement when the task server supports
it. Do the following:
unsigned int nr_task_ids;
unsigned int i;
hurd_task_id_t task_ids[nr_task_ids];
struct hurd_task_death_notify_list_item *item;
pthread_mutex_lock (&hurd_task_death_notify_lock);
item = hurd_task_death_notify_list;
while (item)
{
for (i = 0; i < nr_task_ids; i++)
(*item->notify_handler) (item->hook, task_id[i]);
item = item->next;
}
pthread_mutex_unlock (&hurd_task_death_notify_lock);
The only bit missing is the RPC loop to retrieve the dead task ids
from the task server. This can be a tight loop. */
return 0;
}
/* Start task death notifications. Must be called once at startup. */
error_t
hurd_task_death_notify_start (void)
{
/* FIXME. Needs to be implement when the task server supports it.
Start the task_death_manager thread. */
return 0;
}
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