2 * Copyright © 2009 Keith Packard <keithp@keithp.com>
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License as published by
6 * the Free Software Foundation; version 2 of the License.
8 * This program is distributed in the hope that it will be useful, but
9 * WITHOUT ANY WARRANTY; without even the implied warranty of
10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
11 * General Public License for more details.
13 * You should have received a copy of the GNU General Public License along
14 * with this program; if not, write to the Free Software Foundation, Inc.,
15 * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
21 #define HAS_MUTEX_TRY 1
27 ao_mutex_try(__xdata uint8_t *mutex, uint8_t task_id) __reentrant
30 if (*mutex == task_id)
31 ao_panic(AO_PANIC_MUTEX);
44 ao_mutex_get(__xdata uint8_t *mutex) __reentrant
46 if (*mutex == ao_cur_task->task_id)
47 ao_panic(AO_PANIC_MUTEX);
51 *mutex = ao_cur_task->task_id;
56 ao_mutex_put(__xdata uint8_t *mutex) __reentrant
58 if (*mutex != ao_cur_task->task_id)
59 ao_panic(AO_PANIC_MUTEX);