Function socket

net/basic_socket.cpp:75–85

}

int socket(int domain, int type, int protocol) {
#ifdef __APPLE__
    auto fd = ::socket(domain, type, protocol);
    set_fd_nonblocking(fd);
    int val = 1;
    ::setsockopt(fd, SOL_SOCKET, SO_NOSIGPIPE, (void*)&val, sizeof(val));
    return fd;
#else
    return ::socket(domain, type | SOCK_NONBLOCK, protocol);
#endif
}
int connect(int fd, const struct sockaddr *addr, socklen_t addrlen,
            Timeout timeout) {
    int err = 0;