Method read

adapter/micro_thread/micro_thread.cpp:1164–1208

}

ssize_t MtFrame::read(int fd, 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("read failed, errno: %d (%m)", errno);
        return -10;
    }
    
    ssize_t n = 0;
    mt_hook_syscall(read);
    while ((n = ff_hook_read(fd, buf, nbyte)) < 0)
    {
        now = mtframe->GetLastClock();
        if ((int)(now - start) > timeout)
        {
            errno = ETIME;            
            return -1;
        }
        
        if (errno == EINTR) {
            continue;
        }

        if ((errno != EAGAIN) && (errno != EWOULDBLOCK)) {
            MTLOG_ERROR("read failed, errno: %d", errno);
            return -2;
        }
        
        KqueuerObj epfd;
        epfd.SetOsfd(fd);
        epfd.EnableInput();
        epfd.SetOwnerThread(thread);
        if (!mtframe->KqueueSchedule(NULL, &epfd, timeout)) {
            return -3;
        }
    }
    
    return n;
}

ssize_t MtFrame::write(int fd, const void *buf, size_t nbyte, int timeout)
{