mongoose/docs/c-api/mbuf.h/mbuf_append_and_free.md

title	decl_name	symbol_kind	signature
mbuf_append_and_free()	mbuf_append_and_free	func	size_t mbuf_append_and_free(struct mbuf *, void *data, size_t data_size);

Appends data to the Mbuf and frees it (data must be heap-allocated).

Returns the number of bytes appended or 0 if out of memory. data is freed irrespective of return value.