| /* phil_task.c - dining philosophers */ |
| |
| /* |
| * Copyright (c) 2011-2016 Wind River Systems, Inc. |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| #include <zephyr.h> |
| #include "phil.h" |
| |
| #ifdef CONFIG_NANOKERNEL |
| |
| #define STSIZE 1024 |
| |
| extern void phil_entry(void); |
| extern void object_monitor(void); |
| |
| char __stack phil_stack[N_PHILOSOPHERS][STSIZE]; |
| char __stack mon_stack[STSIZE]; |
| struct nano_sem forks[N_PHILOSOPHERS]; |
| #endif /* CONFIG_NANOKERNEL */ |
| |
| #ifdef CONFIG_NANOKERNEL |
| /** |
| * |
| * @brief Nanokernel entry point |
| * |
| */ |
| |
| int main(void) |
| { |
| int i; |
| |
| for (i = 0; i < N_PHILOSOPHERS; i++) { |
| nano_sem_init(&forks[i]); |
| nano_task_sem_give(&forks[i]); |
| } |
| |
| /* create philosopher fibers */ |
| for (i = 0; i < N_PHILOSOPHERS; i++) { |
| task_fiber_start(&phil_stack[i][0], STSIZE, |
| (nano_fiber_entry_t) phil_entry, 0, 0, 6, 0); |
| } |
| |
| /* create object counter monitor*/ |
| task_fiber_start(mon_stack, STSIZE, |
| (nano_fiber_entry_t) object_monitor, 0, 0, 7, 0); |
| |
| return 0; |
| } |
| |
| #else |
| /** |
| * |
| * @brief Routine to start dining philosopher demo |
| * |
| */ |
| |
| void phil_demo(void) |
| { |
| task_group_start(PHI); |
| task_group_start(MON); |
| } |
| #endif |