void
ngram_search::xor_block(string_buffer& sb, unsigned int val)
{
for (string_buffer::iterator i = sb.begin(); i != sb.end(); ++i) {
(*i) ^= val;
}
}
int
hstcpcli::response_recv(size_t& num_flds_r)
{
if (error_code < 0) {
return error_code;
}
clear_error();
if (num_req_bufd > 0 || num_req_sent == 0 || num_req_rcvd > 0 ||
response_end_offset != 0) {
close();
return set_error(-1, "response_recv: protocol out of sync");
}
cur_row_offset = 0;
num_flds_r = num_flds = 0;
if (fd.get() < 0) {
return set_error(-1, "read: closed");
}
size_t offset = 0;
while (true) {
const char *const lbegin = readbuf.begin() + offset;
const char *const lend = readbuf.end();
const char *const nl = memchr_char(lbegin, '\n', lend - lbegin);
if (nl != 0) {
offset = (nl + 1) - readbuf.begin();
break;
}
if (read_more() <= 0) {
close();
return set_error(-1, "read: eof");
}
}
response_end_offset = offset;
--num_req_sent;
++num_req_rcvd;
char *start = readbuf.begin();
char *const finish = start + response_end_offset - 1;
const size_t resp_code = read_ui32(start, finish);
skip_one(start, finish);
num_flds_r = num_flds = read_ui32(start, finish);
if (resp_code != 0) {
skip_one(start, finish);
char *const err_begin = start;
read_token(start, finish);
char *const err_end = start;
std::string e = std::string(err_begin, err_end - err_begin);
if (e.empty()) {
e = "unknown_error";
}
return set_error(resp_code, e);
}
cur_row_offset = start - readbuf.begin();
DBG(fprintf(stderr, "[%s] ro=%zu eol=%zu\n",
std::string(readbuf.begin(), readbuf.begin() + response_end_offset)
.c_str(),
cur_row_offset, response_end_offset));
DBG(fprintf(stderr, "RES 0\n"));
return 0;
}
int
hstcpcli::response_recv(size_t& num_flds_r)
{
if (error_code < 0) {
return error_code;
}
clear_error();
if (num_req_bufd > 0 || num_req_sent == 0 || num_req_rcvd > 0 ||
response_end_offset != 0) {
close();
return set_error(-1, "response_recv: protocol out of sync");
}
cur_row_offset = 0;
num_flds_r = num_flds = 0;
if (fd.get() < 0) {
return set_error(-1, "read: closed");
}
size_t offset = 0;
while (true) {
const char *const lbegin = readbuf.begin() + offset;
const char *const lend = readbuf.end();
if (lbegin < lend)
{
const char *const nl = memchr_char(lbegin, '\n', lend - lbegin);
if (nl != 0) {
offset += (nl + 1) - lbegin;
break;
}
offset += lend - lbegin;
}
if (read_more() <= 0) {
close();
error_code = -1;
return error_code;
}
}
response_end_offset = offset;
--num_req_sent;
++num_req_rcvd;
char *start = readbuf.begin();
char *const finish = start + response_end_offset - 1;
const size_t resp_code = read_ui32(start, finish);
skip_one(start, finish);
num_flds_r = num_flds = read_ui32(start, finish);
if (resp_code != 0) {
skip_one(start, finish);
char *const err_begin = start;
read_token(start, finish);
char *const err_end = start;
String e = String(err_begin, err_end - err_begin, &my_charset_bin);
if (!e.length()) {
e = String("unknown_error", &my_charset_bin);
}
return set_error(resp_code, e);
}
cur_row_offset = start - readbuf.begin();
DBG(fprintf(stderr, "[%s] ro=%zu eol=%zu\n",
String(readbuf.begin(), readbuf.begin() + response_end_offset)
.c_str(),
cur_row_offset, response_end_offset));
DBG(fprintf(stderr, "RES 0\n"));
if (flds.max_element < num_flds)
{
if (allocate_dynamic(&flds, num_flds))
return set_error(-1, "out of memory");
}
flds.elements = num_flds;
return 0;
}