FreeRTOS/FreeRTOS-Plus/Test/CBMC/proofs/utility/memory_assignments.c

#define ensure_memory_is_valid( px, length ) (px != NULL) && __CPROVER_w_ok((px), length)

/* Implementation of safe malloc which returns NULL if the requested size is 0.
 Warning: The behavior of malloc(0) is platform dependent.
 It is possible for malloc(0) to return an address without allocating memory.*/
void *safeMalloc(size_t xWantedSize) {
        return nondet_bool() ? malloc(xWantedSize) : NULL;
}

/* Memory assignment for FreeRTOS_Socket_t */
FreeRTOS_Socket_t * ensure_FreeRTOS_Socket_t_is_allocated () {
	FreeRTOS_Socket_t *pxSocket = safeMalloc(sizeof(FreeRTOS_Socket_t));
	if (ensure_memory_is_valid(pxSocket, sizeof(FreeRTOS_Socket_t))) {
		pxSocket->u.xTCP.rxStream = safeMalloc(sizeof(StreamBuffer_t));
		pxSocket->u.xTCP.txStream = safeMalloc(sizeof(StreamBuffer_t));
		pxSocket->u.xTCP.pxPeerSocket = safeMalloc(sizeof(FreeRTOS_Socket_t));
	}
	return pxSocket;
}

/* Memory assignment for FreeRTOS_Network_Buffer */
NetworkBufferDescriptor_t * ensure_FreeRTOS_NetworkBuffer_is_allocated () {
	return safeMalloc(sizeof(NetworkBufferDescriptor_t));
}