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55 lines
2.0 KiB
C
55 lines
2.0 KiB
C
/*
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* SPDX-FileCopyrightText: 2015-2024 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 "freertos/FreeRTOS.h"
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#include "freertos/semphr.h"
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#include "freertos/task.h"
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#include "esp_debug_helpers.h"
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#include "esp_log.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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typedef void (*shared_stack_function)(void);
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#define ESP_EXECUTE_EXPRESSION_WITH_STACK(lock, stack, stack_size, expression) \
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esp_execute_shared_stack_function(lock, stack, stack_size, expression)
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/**
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* @brief Calls function on user defined shared stack space
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*
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* After returning, the original stack is used again.
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*
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* @warning This function does minimal preparation of the provided piece of memory (\c stack).
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* DO NOT do any of the following in \c function or any of its callees:
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* * Use Thread-local storage
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* * Use the Floating-point unit on ESP32-P4
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* * Use the AI co-processor on ESP32-P4
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* * Call vTaskDelete(NULL) (deleting the currently running task)
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* Furthermore, backtraces will be wrong when called from \c function or any of its callees.
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* The limitations are quite sever, so that we might deprecate this function in the future.
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* If you have any use case which can only be implemented using this function, please open
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* an issue on github.
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*
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* @param lock Mutex object to protect in case of shared stack
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* @param stack Pointer to user allocated stack
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* @param stack_size Size of current stack in bytes
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* @param function pointer to the shared stack function to be executed
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* @note if either lock, stack or stack size is invalid, the expression will
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* be called using the current stack.
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*/
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void esp_execute_shared_stack_function(SemaphoreHandle_t lock,
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void *stack,
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size_t stack_size,
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shared_stack_function function);
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#ifdef __cplusplus
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}
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#endif
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