esp-idf/components/heap/include/esp_heap_task_info.h

93 wiersze
4.3 KiB
C

/*
* SPDX-FileCopyrightText: 2018-2022 Espressif Systems (Shanghai) CO LTD
*
* SPDX-License-Identifier: Apache-2.0
*/
#pragma once
#include "sdkconfig.h"
#ifdef CONFIG_HEAP_TASK_TRACKING
#ifdef __cplusplus
extern "C" {
#endif
// This macro controls how much space is provided for partitioning the per-task
// heap allocation info according to one or more sets of heap capabilities.
#define NUM_HEAP_TASK_CAPS 4
/** @brief Structure to collect per-task heap allocation totals partitioned by selected caps */
typedef struct {
TaskHandle_t task; ///< Task to which these totals belong
size_t size[NUM_HEAP_TASK_CAPS]; ///< Total allocations partitioned by selected caps
size_t count[NUM_HEAP_TASK_CAPS]; ///< Number of blocks partitioned by selected caps
} heap_task_totals_t;
/** @brief Structure providing details about a block allocated by a task */
typedef struct {
TaskHandle_t task; ///< Task that allocated the block
void *address; ///< User address of allocated block
uint32_t size; ///< Size of the allocated block
} heap_task_block_t;
/** @brief Structure to provide parameters to heap_caps_get_per_task_info
*
* The 'caps' and 'mask' arrays allow partitioning the per-task heap allocation
* totals by selected sets of heap region capabilities so that totals for
* multiple regions can be accumulated in one scan. The capabilities flags for
* each region ANDed with mask[i] are compared to caps[i] in order; the
* allocations in that region are added to totals->size[i] and totals->count[i]
* for the first i that matches. To collect the totals without any
* partitioning, set mask[0] and caps[0] both to zero. The allocation totals
* are returned in the 'totals' array of heap_task_totals_t structs. To allow
* easily comparing the totals array between consecutive calls, that array can
* be left populated from one call to the next so the order of tasks is the
* same even if some tasks have freed their blocks or have been deleted. The
* number of blocks prepopulated is given by num_totals, which is updated upon
* return. If there are more tasks with allocations than the capacity of the
* totals array (given by max_totals), information for the excess tasks will be
* not be collected. The totals array pointer can be NULL if the totals are
* not desired.
*
* The 'tasks' array holds a list of handles for tasks whose block details are
* to be returned in the 'blocks' array of heap_task_block_t structs. If the
* tasks array pointer is NULL, block details for all tasks will be returned up
* to the capacity of the buffer array, given by max_blocks. The function
* return value tells the number of blocks filled into the array. The blocks
* array pointer can be NULL if block details are not desired, or max_blocks
* can be set to zero.
*/
typedef struct {
int32_t caps[NUM_HEAP_TASK_CAPS]; ///< Array of caps for partitioning task totals
int32_t mask[NUM_HEAP_TASK_CAPS]; ///< Array of masks under which caps must match
TaskHandle_t *tasks; ///< Array of tasks whose block info is returned
size_t num_tasks; ///< Length of tasks array
heap_task_totals_t *totals; ///< Array of structs to collect task totals
size_t *num_totals; ///< Number of task structs currently in array
size_t max_totals; ///< Capacity of array of task totals structs
heap_task_block_t *blocks; ///< Array of task block details structs
size_t max_blocks; ///< Capacity of array of task block info structs
} heap_task_info_params_t;
/**
* @brief Return per-task heap allocation totals and lists of blocks.
*
* For each task that has allocated memory from the heap, return totals for
* allocations within regions matching one or more sets of capabilities.
*
* Optionally also return an array of structs providing details about each
* block allocated by one or more requested tasks, or by all tasks.
*
* @param params Structure to hold all the parameters for the function
* (@see heap_task_info_params_t).
* @return Number of block detail structs returned (@see heap_task_block_t).
*/
extern size_t heap_caps_get_per_task_info(heap_task_info_params_t *params);
#ifdef __cplusplus
}
#endif
#endif // CONFIG_HEAP_TASK_TRACKING