80 lines
2.8 KiB
C
80 lines
2.8 KiB
C
/*
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* This file is part of the MicroPython project, http://micropython.org/
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*
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* The MIT License (MIT)
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*
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* Copyright (c) 2017 Damien P. George
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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#ifndef MICROPY_INCLUDED_STM32_PYBTHREAD_H
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#define MICROPY_INCLUDED_STM32_PYBTHREAD_H
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#include "py/mpprint.h"
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typedef struct _pyb_thread_t {
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void *sp;
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uint32_t local_state;
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void *arg; // thread Python args, a GC root pointer
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void *stack; // pointer to the stack
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size_t stack_len; // number of words in the stack
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uint32_t timeslice;
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struct _pyb_thread_t *all_next;
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struct _pyb_thread_t *run_prev;
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struct _pyb_thread_t *run_next;
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struct _pyb_thread_t *queue_next;
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} pyb_thread_t;
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typedef pyb_thread_t *pyb_mutex_t;
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extern volatile int pyb_thread_enabled;
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extern pyb_thread_t *volatile pyb_thread_all;
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extern pyb_thread_t *volatile pyb_thread_cur;
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void pyb_thread_init(pyb_thread_t *th);
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void pyb_thread_deinit();
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uint32_t pyb_thread_new(pyb_thread_t *th, void *stack, size_t stack_len, void *entry, void *arg);
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void pyb_thread_dump(const mp_print_t *print);
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static inline uint32_t pyb_thread_get_id(void) {
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return (uint32_t)pyb_thread_cur;
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}
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static inline void pyb_thread_set_local(void *value) {
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pyb_thread_cur->local_state = (uint32_t)value;
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}
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static inline void *pyb_thread_get_local(void) {
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return (void *)pyb_thread_cur->local_state;
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}
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static inline void pyb_thread_yield(void) {
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if (pyb_thread_cur->run_next == pyb_thread_cur) {
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__WFI();
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} else {
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SCB->ICSR = SCB_ICSR_PENDSVSET_Msk;
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}
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}
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void pyb_mutex_init(pyb_mutex_t *m);
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int pyb_mutex_lock(pyb_mutex_t *m, int wait);
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void pyb_mutex_unlock(pyb_mutex_t *m);
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#endif // MICROPY_INCLUDED_STM32_PYBTHREAD_H
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