esp-idf/components/pthread/include/esp_pthread.h

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// Copyright 2018 Espressif Systems (Shanghai) PTE LTD
//
// 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.
#pragma once
#include "esp_err.h"
#include <freertos/FreeRTOSConfig.h>
#ifdef __cplusplus
extern "C" {
#endif
#ifndef PTHREAD_STACK_MIN
#define PTHREAD_STACK_MIN CONFIG_ESP32_PTHREAD_STACK_MIN
#endif
/** pthread configuration structure that influences pthread creation */
typedef struct {
size_t stack_size; ///< The stack size of the pthread
size_t prio; ///< The thread's priority
bool inherit_cfg; ///< Inherit this configuration further
const char* thread_name; ///< The thread name.
int pin_to_core; ///< The core id to pin the thread to. Has the same value range as xCoreId argument of xTaskCreatePinnedToCore.
} esp_pthread_cfg_t;
/**
* @brief Creates a default pthread configuration based
* on the values set via menuconfig.
*
* @return
* A default configuration structure.
*/
esp_pthread_cfg_t esp_pthread_get_default_config();
/**
* @brief Configure parameters for creating pthread
*
* This API allows you to configure how the subsequent
* pthread_create() call will behave. This call can be used to setup
* configuration parameters like stack size, priority, configuration
* inheritance etc.
*
* If the 'inherit' flag in the configuration structure is enabled,
* then the same configuration is also inherited in the thread
* subtree.
*
* @note Passing non-NULL attributes to pthread_create() will override
* the stack_size parameter set using this API
*
* @param cfg The pthread config parameters
*
* @return
* - ESP_OK if configuration was successfully set
* - ESP_ERR_NO_MEM if out of memory
* - ESP_ERR_INVALID_ARG if stack_size is less than PTHREAD_STACK_MIN
*/
esp_err_t esp_pthread_set_cfg(const esp_pthread_cfg_t *cfg);
/**
* @brief Get current pthread creation configuration
*
* This will retrieve the current configuration that will be used for
* creating threads.
*
* @param p Pointer to the pthread config structure that will be
* updated with the currently configured parameters
*
* @return
* - ESP_OK if the configuration was available
* - ESP_ERR_NOT_FOUND if a configuration wasn't previously set
*/
esp_err_t esp_pthread_get_cfg(esp_pthread_cfg_t *p);
#ifdef __cplusplus
}
#endif