| 1 | /* |
| 2 | Copyright (c) 2012 Arduino. All right reserved. |
| 3 | |
| 4 | This library is free software; you can redistribute it and/or |
| 5 | modify it under the terms of the GNU Lesser General Public |
| 6 | License as published by the Free Software Foundation; either |
| 7 | version 2.1 of the License, or (at your option) any later version. |
| 8 | |
| 9 | This library is distributed in the hope that it will be useful, |
| 10 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 11 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. |
| 12 | See the GNU Lesser General Public License for more details. |
| 13 | |
| 14 | You should have received a copy of the GNU Lesser General Public |
| 15 | License along with this library; if not, write to the Free Software |
| 16 | Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
| 17 | */ |
| 18 |
|
| 19 | /** |
| 20 | * Empty yield() hook. |
| 21 | * |
| 22 | * This function is intended to be used by library writers to build |
| 23 | * libraries or sketches that supports cooperative threads. |
| 24 | * |
| 25 | * Its defined as a weak symbol and it can be redefined to implement a |
| 26 | * real cooperative scheduler. |
| 27 | */ |
| 28 | static void __empty() { |
| 29 | // Empty |
| 30 | } |
| 31 | void yield(void) __attribute__ ((weak, alias("__empty"))); |
| 32 |
|
Index