Bookkeeping written immediately below every allocated payload. More...

Data Fields
void *	base
	Exact pointer tx_byte_allocate returned.
uint32_t	magic
	k_ra8_esp_hosted_hdr_magic while live.
uint32_t	size
	Payload bytes the caller asked for.

Detailed Description

Bookkeeping written immediately below every allocated payload.

Carries what ThreadX byte pools do not: the exact pointer tx_byte_allocate returned, the payload size _h_realloc must preserve, and a sentinel that rejects a foreign pointer.

Invariant: magic equals k_ra8_esp_hosted_hdr_magic in a live block.; base is the pointer ThreadX must be handed back.

Example:: ra8_esp_hosted_alloc_hdr_t hdr = {};

(void)memcpy(&hdr, (const uint8_t*)p - k_ra8_esp_hosted_hdr_bytes, sizeof(hdr));

k_ra8_esp_hosted_hdr_bytes
@ k_ra8_esp_hosted_hdr_bytes
Per-block header footprint.
Definition ra8_esp_hosted_rtos_pool.c:86

memcpy
void * memcpy(void *dst, const void *src, size_t n)
Copy memory area between non-overlapping regions.
Definition ra8_freestanding_mem.c:70

ra8_esp_hosted_alloc_hdr_t
Bookkeeping written immediately below every allocated payload.
Definition ra8_esp_hosted_rtos_pool.c:112