diff options
Diffstat (limited to 'ao_mutex.c')
| -rw-r--r-- | ao_mutex.c | 41 |
1 files changed, 0 insertions, 41 deletions
diff --git a/ao_mutex.c b/ao_mutex.c deleted file mode 100644 index 8212a515..00000000 --- a/ao_mutex.c +++ /dev/null @@ -1,41 +0,0 @@ -/* - * Copyright © 2009 Keith Packard <keithp@keithp.com> - * - * 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; version 2 of the License. - * - * 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., - * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. - */ - -#include "ao.h" - -void -ao_mutex_get(__xdata uint8_t *mutex) __reentrant -{ - if (*mutex == ao_cur_task->task_id) - ao_panic(AO_PANIC_MUTEX); - __critical { - while (*mutex) - ao_sleep(mutex); - *mutex = ao_cur_task->task_id; - } -} - -void -ao_mutex_put(__xdata uint8_t *mutex) __reentrant -{ - if (*mutex != ao_cur_task->task_id) - ao_panic(AO_PANIC_MUTEX); - __critical { - *mutex = 0; - ao_wakeup(mutex); - } -} |