Method write

adapter/micro_thread/micro_thread.cpp:1210–1266

}

ssize_t MtFrame::write(int fd, const void *buf, size_t nbyte, int timeout)
{
    MtFrame* mtframe = MtFrame::Instance();
    utime64_t start = mtframe->GetLastClock();
    MicroThread* thread = mtframe->GetActiveThread();
    utime64_t now = 0;

    if(fd<0 || !buf || nbyte<1)
    {
        errno = EINVAL;
        MTLOG_ERROR("write failed, errno: %d (%m)", errno);
        return -10;
    }
    
    ssize_t n = 0;
    size_t send_len = 0;
    while (send_len < nbyte)
    {
        now = mtframe->GetLastClock();
        if ((int)(now - start) > timeout)
        {
            errno = ETIME;            
            return -1;
        }

        mt_hook_syscall(write);
        n = ff_hook_write(fd, (char*)buf + send_len, nbyte - send_len);
        if (n < 0)
        {
            if (errno == EINTR) {
                continue;
            }
            
            if ((errno != EAGAIN) && (errno != EWOULDBLOCK)) {
                MTLOG_ERROR("write failed, errno: %d", errno);
                return -2;
            }
        }
        else
        {
            send_len += n;
            if (send_len >= nbyte) {
                return nbyte;
            }
        }

        KqueuerObj epfd;
        epfd.SetOsfd(fd);
        epfd.EnableOutput();
        epfd.SetOwnerThread(thread);
        if (!mtframe->KqueueSchedule(NULL, &epfd, timeout)) {
            return -3;
        }
    }

    return nbyte;
}