| /* |
| * Copyright (c) 2010-2012, 2014-2015 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. |
| */ |
| |
| /** |
| * @file |
| * @brief Architecture-independent private nanokernel APIs |
| * |
| * This file contains private nanokernel APIs that are not |
| * architecture-specific. |
| */ |
| |
| #ifndef _NANO_INTERNAL__H_ |
| #define _NANO_INTERNAL__H_ |
| |
| #ifndef _ASMLANGUAGE |
| |
| #ifdef __cplusplus |
| extern "C" { |
| #endif |
| |
| /* helper type alias for thread control structure */ |
| |
| typedef struct tcs tTCS; |
| |
| /* thread entry point declarations */ |
| |
| typedef void *_thread_arg_t; |
| typedef void (*_thread_entry_t)(_thread_arg_t arg1, |
| _thread_arg_t arg2, |
| _thread_arg_t arg3); |
| |
| extern void _thread_entry(_thread_entry_t, |
| _thread_arg_t, |
| _thread_arg_t, |
| _thread_arg_t); |
| |
| extern void _new_thread(char *pStack, unsigned stackSize, |
| void *uk_task_ptr, _thread_entry_t pEntry, |
| _thread_arg_t arg1, _thread_arg_t arg2, |
| _thread_arg_t arg3, |
| int prio, unsigned options); |
| |
| /* context switching and scheduling-related routines */ |
| |
| extern void _nano_fiber_ready(struct tcs *tcs); |
| extern void _nano_fiber_swap(void); |
| |
| extern unsigned int _Swap(unsigned int); |
| |
| /* set and clear essential fiber/task flag */ |
| |
| extern void _thread_essential_set(void); |
| extern void _thread_essential_clear(void); |
| |
| /* clean up when a thread is aborted */ |
| |
| #if defined(CONFIG_THREAD_MONITOR) |
| extern void _thread_exit(struct tcs *tcs); |
| #else |
| #define _thread_exit(tcs) \ |
| do {/* nothing */ \ |
| } while (0) |
| #endif /* CONFIG_THREAD_MONITOR */ |
| |
| /* special nanokernel object APIs */ |
| |
| struct nano_lifo; |
| |
| extern void *_nano_fiber_lifo_get_panic(struct nano_lifo *lifo); |
| |
| #ifdef CONFIG_MICROKERNEL |
| extern void _task_nop(void); |
| extern void _nano_nop(void); |
| extern int _nano_unpend_tasks(struct _nano_queue *queue); |
| extern void _nano_task_ready(void *ptr); |
| extern void _nano_timer_task_ready(void *task); |
| |
| #define _TASK_PENDQ_INIT(queue) _nano_wait_q_init(queue) |
| #define _NANO_UNPEND_TASKS(queue) \ |
| do { \ |
| if (_nano_unpend_tasks(queue) != 0) { \ |
| _nano_nop(); \ |
| } \ |
| } while (0) |
| |
| |
| #define _TASK_NANO_UNPEND_TASKS(queue) \ |
| do { \ |
| if (_nano_unpend_tasks(queue) != 0) { \ |
| _task_nop(); \ |
| } \ |
| } while (0) |
| |
| #define _NANO_TASK_READY(tcs) _nano_task_ready(tcs->uk_task_ptr) |
| #define _NANO_TIMER_TASK_READY(tcs) _nano_timer_task_ready(tcs->uk_task_ptr) |
| #define _IS_MICROKERNEL_TASK(tcs) ((tcs)->uk_task_ptr != NULL) |
| #define _IS_IDLE_TASK() \ |
| (task_priority_get() == (CONFIG_NUM_TASK_PRIORITIES - 1)) |
| #else |
| #define _TASK_PENDQ_INIT(queue) do { } while (0) |
| #define _NANO_UNPEND_TASKS(queue) do { } while (0) |
| #define _TASK_NANO_UNPEND_TASKS(queue) do { } while (0) |
| #define _NANO_TASK_READY(tcs) do { } while (0) |
| #define _NANO_TIMER_TASK_READY(tcs) do { } while (0) |
| #define _IS_MICROKERNEL_TASK(tcs) (0) |
| #endif |
| |
| #ifdef __cplusplus |
| } |
| #endif |
| |
| #endif /* _ASMLANGUAGE */ |
| |
| #endif /* _NANO_INTERNAL__H_ */ |