Function arg_entry_bf_fill

dpdk/app/test-pmd/cmdline_flow.c:7616–7652

Spread value into buffer according to bit-mask. */

/** Spread value into buffer according to bit-mask. */
static size_t
arg_entry_bf_fill(void *dst, uintmax_t val, const struct arg *arg)
{
	uint32_t i = arg->size;
	uint32_t end = 0;
	int sub = 1;
	int add = 0;
	size_t len = 0;

	if (!arg->mask)
		return 0;
#if RTE_BYTE_ORDER == RTE_LITTLE_ENDIAN
	if (!arg->hton) {
		i = 0;
		end = arg->size;
		sub = 0;
		add = 1;
	}
#endif
	while (i != end) {
		unsigned int shift = 0;
		uint8_t *buf = (uint8_t *)dst + arg->offset + (i -= sub);

		for (shift = 0; arg->mask[i] >> shift; ++shift) {
			if (!(arg->mask[i] & (1 << shift)))
				continue;
			++len;
			if (!dst)
				continue;
			*buf &= ~(1 << shift);
			*buf |= (val & 1) << shift;
			val >>= 1;
		}
		i += add;
	}
	return len;
}

/** Compare a string with a partial one of a given length. */
static int