mirror of
https://github.com/espressif/esp-idf.git
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87 lines
2.4 KiB
C
87 lines
2.4 KiB
C
/*
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* SPDX-FileCopyrightText: 2021-2024 Espressif Systems (Shanghai) CO LTD
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#pragma once
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#include <stdbool.h>
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#include "esp_err.h"
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#include "freertos/FreeRTOS.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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/**
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* @brief This function initializes the OpenThread API lock.
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*
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* @return
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* - ESP_OK on success
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* - ESP_ERR_NO_MEM if allocation has failed
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* - ESP_ERR_INVALID_STATE if already initialized
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*
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*/
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esp_err_t esp_openthread_lock_init(void);
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/**
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* This function deinitializes the OpenThread API lock.
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*
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*/
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void esp_openthread_lock_deinit(void);
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/**
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* @brief This function acquires the OpenThread API lock.
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*
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* @note Every Openthread APIs that takes an otInstance argument MUST be protected with this API lock
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* except that the call site is in Openthread callbacks.
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*
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* @param[in] block_ticks The maximum number of RTOS ticks to wait for the lock.
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*
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* @return
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* - True on lock acquired
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* - False on failing to acquire the lock with the timeout.
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*
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*/
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bool esp_openthread_lock_acquire(TickType_t block_ticks);
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/**
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* @brief This function releases the OpenThread API lock.
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*
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*/
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void esp_openthread_lock_release(void);
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/**
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* @brief This function acquires the OpenThread API task switching lock.
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*
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* @note In OpenThread API context, it waits for some actions to be done in other tasks (like lwip),
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* after task switching, it needs to call OpenThread API again. Normally it's not allowed,
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* since the previous OpenThread API lock is not released yet. This task_switching lock allows
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* the OpenThread API can be called in this case.
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*
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* @note Please use esp_openthread_lock_acquire() for normal cases.
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*
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* @param[in] block_ticks The maximum number of RTOS ticks to wait for the lock.
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*
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* @return
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* - True on lock acquired
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* - False on failing to acquire the lock with the timeout.
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*
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*/
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bool esp_openthread_task_switching_lock_acquire(TickType_t block_ticks);
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/**
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* @brief This function releases the OpenThread API task switching lock.
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*
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* @note This API must be called after `esp_openthread_task_switching_lock_acquire` or
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* `esp_openthread_lock_acquire` and will cause a crash if the current task is not the task switching lock holder.
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* This error could be caused by calling OpenThread APIs without locking OpenThread stack.
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*/
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void esp_openthread_task_switching_lock_release(void);
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#ifdef __cplusplus
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}
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#endif
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