tcp client init

credit @aqrit

call it after server async_start or sync_start.

add two small integers, checking for overflow. we want an efficient operation. for msvc, where we don't have built-in intrinsics, this is still pretty

value == 0 ? 1 : floor(log2(value)) / 7 + 1

Get rule count

! * Connect server * * only make socket connet(or handshake) to the host * * @param uri server address * @param eps endpoints of res

Compares two ASCII strings in a case insensitive manner.

compute 64-bit a*b

unsigned int getElapsedMilliseconds() const { return static_cast<unsigned int>(getElapsedMicroseconds() / 1000); }