128 lines
3.6 KiB
C
128 lines
3.6 KiB
C
/*
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* Copyright (c) 2010-2012, 2014-2015 Wind River Systems, Inc.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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/**
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* @file
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* @brief Architecture-independent private nanokernel APIs
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*
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* This file contains private nanokernel APIs that are not
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* architecture-specific.
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*/
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#ifndef _NANO_INTERNAL__H_
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#define _NANO_INTERNAL__H_
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#ifndef _ASMLANGUAGE
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#ifdef __cplusplus
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extern "C" {
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#endif
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/* helper type alias for thread control structure */
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typedef struct tcs tTCS;
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/* thread entry point declarations */
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typedef void *_thread_arg_t;
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typedef void (*_thread_entry_t)(_thread_arg_t arg1,
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_thread_arg_t arg2,
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_thread_arg_t arg3);
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extern void _thread_entry(_thread_entry_t,
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_thread_arg_t,
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_thread_arg_t,
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_thread_arg_t);
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extern void _new_thread(char *pStack, unsigned stackSize,
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void *uk_task_ptr, _thread_entry_t pEntry,
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_thread_arg_t arg1, _thread_arg_t arg2,
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_thread_arg_t arg3,
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int prio, unsigned options);
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/* context switching and scheduling-related routines */
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extern void _nano_fiber_ready(struct tcs *tcs);
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extern void _nano_fiber_swap(void);
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extern unsigned int _Swap(unsigned int);
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/* set and clear essential fiber/task flag */
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extern void _thread_essential_set(void);
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extern void _thread_essential_clear(void);
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/* clean up when a thread is aborted */
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#if defined(CONFIG_THREAD_MONITOR)
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extern void _thread_exit(struct tcs *tcs);
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#else
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#define _thread_exit(tcs) \
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do {/* nothing */ \
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} while (0)
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#endif /* CONFIG_THREAD_MONITOR */
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/* special nanokernel object APIs */
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struct nano_lifo;
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extern void *_nano_fiber_lifo_get_panic(struct nano_lifo *lifo);
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#ifdef CONFIG_MICROKERNEL
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extern void _task_nop(void);
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extern void _nano_nop(void);
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extern int _nano_unpend_tasks(struct _nano_queue *queue);
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extern void _nano_task_ready(void *ptr);
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extern void _nano_timer_task_ready(void *task);
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#define _TASK_PENDQ_INIT(queue) _nano_wait_q_init(queue)
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#define _NANO_UNPEND_TASKS(queue) \
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do { \
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if (_nano_unpend_tasks(queue) != 0) { \
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_nano_nop(); \
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} \
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} while (0)
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#define _TASK_NANO_UNPEND_TASKS(queue) \
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do { \
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if (_nano_unpend_tasks(queue) != 0) { \
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_task_nop(); \
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} \
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} while (0)
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#define _NANO_TASK_READY(tcs) _nano_task_ready(tcs->uk_task_ptr)
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#define _NANO_TIMER_TASK_READY(tcs) _nano_timer_task_ready(tcs->uk_task_ptr)
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#define _IS_MICROKERNEL_TASK(tcs) ((tcs)->uk_task_ptr != NULL)
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#define _IS_IDLE_TASK() \
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(task_priority_get() == (CONFIG_NUM_TASK_PRIORITIES - 1))
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#else
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#define _TASK_PENDQ_INIT(queue) do { } while (0)
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#define _NANO_UNPEND_TASKS(queue) do { } while (0)
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#define _TASK_NANO_UNPEND_TASKS(queue) do { } while (0)
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#define _NANO_TASK_READY(tcs) do { } while (0)
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#define _NANO_TIMER_TASK_READY(tcs) do { } while (0)
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#define _IS_MICROKERNEL_TASK(tcs) (0)
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#endif
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#ifdef __cplusplus
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}
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#endif
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#endif /* _ASMLANGUAGE */
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#endif /* _NANO_INTERNAL__H_ */
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