static struct ptunit_result fetch_null(struct fetch_fixture *ffix)
{
const struct pt_decoder_function *dfun;
int errcode;
errcode = pt_df_fetch(NULL, ffix->config.begin, &ffix->config);
ptu_int_eq(errcode, -pte_internal);
errcode = pt_df_fetch(&dfun, NULL, &ffix->config);
ptu_int_eq(errcode, -pte_nosync);
errcode = pt_df_fetch(&dfun, ffix->config.begin, NULL);
ptu_int_eq(errcode, -pte_internal);
return ptu_passed();
}
int pt_pkt_next(struct pt_packet_decoder *decoder, struct pt_packet *packet,
size_t psize)
{
const struct pt_decoder_function *dfun;
struct pt_packet pkt, *ppkt;
int errcode, size;
if (!packet || !decoder)
return -pte_invalid;
ppkt = psize == sizeof(pkt) ? packet : &pkt;
errcode = pt_df_fetch(&dfun, decoder->pos, &decoder->config);
if (errcode < 0)
return errcode;
if (!dfun)
return -pte_internal;
if (!dfun->packet)
return -pte_internal;
size = dfun->packet(decoder, ppkt);
if (size < 0)
return size;
errcode = pkt_to_user(packet, psize, ppkt);
if (errcode < 0)
return errcode;
decoder->pos += size;
return size;
}
static struct ptunit_result fetch_empty(struct fetch_fixture *ffix)
{
const struct pt_decoder_function *dfun;
int errcode;
errcode = pt_df_fetch(&dfun, ffix->config.end, &ffix->config);
ptu_int_eq(errcode, -pte_eos);
return ptu_passed();
}
static struct ptunit_result fetch_unknown(struct fetch_fixture *ffix)
{
const struct pt_decoder_function *dfun;
int errcode;
ffix->config.begin[0] = pt_opc_bad;
errcode = pt_df_fetch(&dfun, ffix->config.begin, &ffix->config);
ptu_int_eq(errcode, 0);
ptu_ptr_eq(dfun, &pt_decode_unknown);
return ptu_passed();
}
static struct ptunit_result fetch_packet(struct fetch_fixture *ffix,
const struct pt_packet *packet,
const struct pt_decoder_function *df)
{
const struct pt_decoder_function *dfun;
int errcode;
errcode = pt_enc_next(&ffix->encoder, packet);
ptu_int_ge(errcode, 0);
errcode = pt_df_fetch(&dfun, ffix->config.begin, &ffix->config);
ptu_int_eq(errcode, 0);
ptu_ptr_eq(dfun, df);
return ptu_passed();
}