C++ (Cpp) nxm_parse_field_bits примеры использования

Пример #1

Файл: ofp-parse.c Проект: andychenzy/dpdk-ovs

static void
parse_output(struct ofpbuf *b, char *arg)
{
    if (strchr(arg, '[')) {
        struct nx_action_output_reg *naor;
        int ofs, n_bits;
        uint32_t src;

        nxm_parse_field_bits(arg, &src, &ofs, &n_bits);

        naor = ofputil_put_NXAST_OUTPUT_REG(b);
        naor->ofs_nbits = nxm_encode_ofs_nbits(ofs, n_bits);
        naor->src = htonl(src);
        naor->max_len = htons(UINT16_MAX);
    } else {
        put_output_action(b, str_to_u32(arg));
    }
}

Пример #2

Файл: bundle.c Проект: Danesca/openvswitch

/* Helper for bundle_parse and bundle_parse_load. */
static void
bundle_parse__(struct ofpbuf *b, const char *s, char **save_ptr,
               const char *fields, const char *basis, const char *algorithm,
               const char *slave_type, const char *dst,
               const char *slave_delim)
{
    enum ofputil_action_code code;
    struct nx_action_bundle *nab;
    uint16_t n_slaves;

    if (!slave_delim) {
        ovs_fatal(0, "%s: not enough arguments to bundle action", s);
    }

    if (strcasecmp(slave_delim, "slaves")) {
        ovs_fatal(0, "%s: missing slave delimiter, expected `slaves' got `%s'",
                   s, slave_delim);
    }

    code = dst ? OFPUTIL_NXAST_BUNDLE_LOAD : OFPUTIL_NXAST_BUNDLE;
    b->l2 = ofputil_put_action(code, b);

    n_slaves = 0;
    for (;;) {
        ovs_be16 slave_be;
        char *slave;

        slave = strtok_r(NULL, ", ", save_ptr);
        if (!slave || n_slaves >= BUNDLE_MAX_SLAVES) {
            break;
        }

        slave_be = htons(atoi(slave));
        ofpbuf_put(b, &slave_be, sizeof slave_be);

        n_slaves++;
    }

    /* Slaves array must be multiple of 8 bytes long. */
    if (b->size % 8) {
        ofpbuf_put_zeros(b, 8 - (b->size % 8));
    }

    nab = b->l2;
    nab->len = htons(b->size - ((char *) b->l2 - (char *) b->data));
    nab->n_slaves = htons(n_slaves);
    nab->basis = htons(atoi(basis));

    if (!strcasecmp(fields, "eth_src")) {
        nab->fields = htons(NX_HASH_FIELDS_ETH_SRC);
    } else if (!strcasecmp(fields, "symmetric_l4")) {
        nab->fields = htons(NX_HASH_FIELDS_SYMMETRIC_L4);
    } else {
        ovs_fatal(0, "%s: unknown fields `%s'", s, fields);
    }

    if (!strcasecmp(algorithm, "active_backup")) {
        nab->algorithm = htons(NX_BD_ALG_ACTIVE_BACKUP);
    } else if (!strcasecmp(algorithm, "hrw")) {
        nab->algorithm = htons(NX_BD_ALG_HRW);
    } else {
        ovs_fatal(0, "%s: unknown algorithm `%s'", s, algorithm);
    }

    if (!strcasecmp(slave_type, "ofport")) {
        nab->slave_type = htonl(NXM_OF_IN_PORT);
    } else {
        ovs_fatal(0, "%s: unknown slave_type `%s'", s, slave_type);
    }

    if (dst) {
        uint32_t reg;
        int ofs, n_bits;

        nxm_parse_field_bits(dst, &reg, &ofs, &n_bits);

        nab->dst = htonl(reg);
        nab->ofs_nbits = nxm_encode_ofs_nbits(ofs, n_bits);
    }

    b->l2 = NULL;
}