static void read_u48_func(void** state) {
uint64_t comp_buf = 0;
uint32_t idx = 0;
for(uint64_t i = 0; i < CHAR_SIZE - 2; i += 6) {
comp_buf = (('a' + i) << 40) | (('b' + i) << 32) | (('c' + i) << 24) | (('d' + i) << 16) | (('e' + i) << 8) | ('f' + i);
assert_int_equal(read_u48(buffer, &idx), comp_buf);
}
}
StartOfFileRecord::StartOfFileRecord(const Source &source, const unsigned char *payload, int payload_len) {
try {
const unsigned char *ptr=payload;
protocol_version = read_u16(ptr);
time = TimeRecord(source, ptr);
tick_period = read_u48(ptr);
if (verbose) log_f("parse_bt_file: Parsing SOFR: tick_period is %llu", tick_period);
char *cptr = (char*) ptr, *end= (char*) payload+payload_len;
if (end[-1] != 0) throw ParseError("At byte %d: DEVICE_PARAMS don't end with NUL", source.pos(end-1));
while (cptr < end-1) {
char *keyptr = cptr;
cptr = strchr(cptr, '\t');
if (!cptr) throw ParseError("At byte %d: DEVICE_PARAMS missing tab", source.pos(keyptr));
std::string key(keyptr, cptr);
cptr++; // skip tab
char *valueptr = cptr;
cptr = strchr(cptr, '\n');
if (!cptr) throw ParseError("At byte %d: DEVICE_PARAMS missing newline", source.pos(valueptr));
std::string value(valueptr, cptr);
cptr++; // skip
if (verbose) log_f("parse_bt_file: '%s'='%s'", key.c_str(), value.c_str());
device_params[key] = value;
}
if (!device_params.count("channel_specs")) {
throw ParseError("No channel_specs field in DEVICE_PARAMS in START_OF_FILE record");
}
Json::Reader reader;
if (!reader.parse(device_params["channel_specs"], channel_specs)) {
throw ParseError("Failed to parse channel_specs JSON");
}
Json::Value::Members channel_names = channel_specs.getMemberNames();
for (unsigned i = 0; i < channel_names.size(); i++) {
std::string units = get_channel_units(channel_names[i]);
double scale = get_channel_scale(channel_names[i]);
if (verbose)
log_f("parse_bt_file: channel %d: '%s', units '%s', scale %g",
i, channel_names[i].c_str(), units.c_str(), scale);
}
}
catch (ParseError &e) {
throw ParseError("In RTYPE_START_OF_FILE payload starting at byte %d: %s", source.pos(payload), e.what());
}
}
