本文整理汇总了C++中string_buffer类的典型用法代码示例。如果您正苦于以下问题：C++ string_buffer类的具体用法？C++ string_buffer怎么用？C++ string_buffer使用的例子？那么恭喜您, 这里精选的类代码示例或许可以为您提供帮助。
在下文中一共展示了string_buffer类的15个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。
示例1:
void
ngram_search::xor_block(string_buffer& sb, unsigned int val)
{
for (string_buffer::iterator i = sb.begin(); i != sb.end(); ++i) {
(*i) ^= val;
}
}示例2: append_uint32
void
append_uint32(string_buffer& buf, uint32_t v)
{
char *const wp = buf.make_space(64);
const int len = snprintf(wp, 64, "%lu", static_cast<unsigned long>(v));
if (len > 0) {
buf.space_wrote(len);
}
}示例3: while
template <typename T> void
ngram_search::serialize_nat(string_buffer& sb, T value)
{
do {
const unsigned char b7 = value & 0x7fU;
value >>= 7;
const unsigned char cf = (value != 0) ? 0x80U : 0;
const unsigned char b = b7 | cf;
sb.append(reinterpret_cast<const char *>(&b), 1);
} while (value != 0);
}示例4: append_string_buffer
append_string_buffer(string_buffer& b) : b(b) { b.reserve(100); }示例5: close
size_t
hstcpcli::request_buf_append(const char *start, const char *finish)
{
/*
if (num_req_sent > 0 || num_req_rcvd > 0) {
*/
if (num_req_rcvd > 0) {
close();
set_error(-1, "request_buf_append: protocol out of sync");
return 0;
}
const char *nl = start;
size_t num_req = 0;
while ((nl = memchr_char(nl, '\n', finish - nl))) {
if (nl == finish)
break;
num_req++;
nl++;
}
num_req++;
writebuf.append(start, finish);
if (*(finish - 1) != '\n')
writebuf.append_literal("\n");
num_req_bufd += num_req;
return num_req;
}示例6: set_error
int
hstcpcli::request_send()
{
if (error_code < 0) {
return error_code;
}
clear_error();
if (fd.get() < 0) {
close();
return set_error(-1, "write: closed");
}
if (num_req_bufd == 0 || num_req_sent > 0 || num_req_rcvd > 0) {
close();
return set_error(-1, "request_send: protocol out of sync");
}
const size_t wrlen = writebuf.size();
const ssize_t r = send(fd.get(), writebuf.begin(), wrlen, MSG_NOSIGNAL);
if (r <= 0) {
close();
return set_error(-1, r < 0 ? "write: failed" : "write: eof");
}
writebuf.erase_front(r);
if (static_cast<size_t>(r) != wrlen) {
close();
return set_error(-1, "write: incomplete");
}
num_req_sent = num_req_bufd;
num_req_bufd = 0;
DBG(fprintf(stderr, "REQSEND 0\n"));
return 0;
}示例7: DBG
const string_ref *
hstcpcli::get_next_row()
{
if (num_flds == 0) {
DBG(fprintf(stderr, "GNR NF 0\n"));
return 0;
}
if (flds.size() < num_flds) {
flds.resize(num_flds);
}
char *start = readbuf.begin() + cur_row_offset;
char *const finish = readbuf.begin() + response_end_offset - 1;
if (start >= finish) { /* start[0] == nl */
DBG(fprintf(stderr, "GNR FIN 0 %p %p\n", start, finish));
return 0;
}
for (size_t i = 0; i < num_flds; ++i) {
skip_one(start, finish);
char *const fld_begin = start;
read_token(start, finish);
char *const fld_end = start;
char *wp = fld_begin;
if (is_null_expression(fld_begin, fld_end)) {
/* null */
flds[i] = string_ref();
} else {
unescape_string(wp, fld_begin, fld_end); /* in-place */
flds[i] = string_ref(fld_begin, wp);
}
}
cur_row_offset = start - readbuf.begin();
return &flds[0];
}示例8:
void
hstcpcli::request_reset()
{
if (num_req_bufd) {
writebuf.erase_front(writebuf.size());
num_req_bufd = 0;
}
}示例9: read
int
hstcpcli::read_more()
{
const size_t block_size = 4096; // FIXME
char *const wp = readbuf.make_space(block_size);
const ssize_t rlen = read(fd.get(), wp, block_size);
if (rlen <= 0) {
if (rlen < 0) {
error_str = "read: failed";
} else {
error_str = "read: eof";
}
return rlen;
}
readbuf.space_wrote(rlen);
return rlen;
}示例10: read_id
dtoken read_id() {
while (!eos() && m_curr_char != '(' && m_curr_char != ')' &&
m_curr_char != '#' && m_curr_char != ',' && (m_parsing_domains || m_curr_char != '.') &&
m_curr_char != ':' && m_curr_char != '=' && !iswspace(m_curr_char) ) {
save_and_next();
}
return m_reserved_symbols.string2dtoken(m_buffer.c_str());
}示例11: read_bid
// read an id of the form '|'.*'|'
dtoken read_bid() {
while (!eos() && m_curr_char != '|') {
save_and_next();
}
if (m_curr_char == '|') {
next();
}
return m_reserved_symbols.string2dtoken(m_buffer.c_str());
}示例12: lookahead_newline
bool lookahead_newline() {
while (m_curr_char == ' ') {
save_and_next();
}
if (m_curr_char == '\n') {
next();
m_line++;
m_buffer.reset();
return true;
}
if (m_curr_char == '#') {
m_buffer.reset();
m_prev_char = 0;
read_comment();
return true;
}
return false;
}示例13: typ_ref
void
hstcpcli::request_buf_auth(const char *secret, const char *typ)
{
if (num_req_sent > 0 || num_req_rcvd > 0) {
close();
set_error(-1, "request_buf_auth: protocol out of sync");
return;
}
if (typ == 0) {
typ = "1";
}
const string_ref typ_ref(typ, strlen(typ));
const string_ref secret_ref(secret, strlen(secret));
writebuf.append_literal("A\t");
writebuf.append(typ_ref.begin(), typ_ref.end());
writebuf.append_literal("\t");
writebuf.append(secret_ref.begin(), secret_ref.end());
writebuf.append_literal("\n");
++num_req_bufd;
}示例14: while
int
hstcpcli::read_more()
{
const size_t block_size = 4096; // FIXME
char *const wp = readbuf.make_space(block_size);
int rlen;
errno = 0;
while ((rlen = read(fd.get(), wp, block_size)) <= 0) {
errno_buf = errno;
if (rlen < 0) {
if (errno == EINTR || errno == EAGAIN)
{
errno = 0;
continue;
}
error_str = String("read: failed", &my_charset_bin);
} else {
error_str = String("read: eof", &my_charset_bin);
}
return rlen;
}
readbuf.space_wrote(rlen);
return rlen;
}示例15: set_error
int
hstcpcli::get_result(hstresult& result)
{
/*
readbuf.swap(result.readbuf);
*/
char *const wp = result.readbuf.make_space(response_end_offset);
memcpy(wp, readbuf.begin(), response_end_offset);
result.readbuf.space_wrote(response_end_offset);
result.response_end_offset = response_end_offset;
result.num_flds = num_flds;
result.cur_row_offset = cur_row_offset;
if (result.flds.max_element < num_flds)
{
if (allocate_dynamic(&result.flds, num_flds))
return set_error(-1, "out of memory");
}
result.flds.elements = num_flds;
return 0;
}