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heap: add functions to get heap runtime statistics

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add functions to get the sys_heap runtime statistics,
include total free bytes, total allocated bytes.

Signed-off-by: Chen Peng1 <peng1.chen@intel.com>
This commit is contained in:
Chen Peng1 2021-10-29 15:49:07 +08:00 • committed by Anas Nashif
commit a71cd8790f
5 changed files with 75 additions and 0 deletions
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19
include/sys/sys_heap.h
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@ -61,6 +61,25 @@ struct z_heap_stress_result {
uint64_t accumulated_in_use_bytes;
};
#ifdef CONFIG_SYS_HEAP_RUNTIME_STATS
struct sys_heap_runtime_stats {
size_t free_bytes;
size_t allocated_bytes;
};
/**
* @brief Get the runtime statistics of a sys_heap
*
* @param heap Pointer to specified sys_heap
* @param stats_t Pointer to struct to copy statistics into
* @return -EINVAL if null pointers, otherwise 0
*/
int sys_heap_runtime_stats_get(struct sys_heap *heap,
struct sys_heap_runtime_stats *stats);
#endif
/** @brief Initialize sys_heap
*
* Initializes a sys_heap struct to manage the specified memory.