Re: [lwip-users] what wrong with my tcp?

[乔崇]

lwip-usersDear Sir:
                I use ucos-ii.
///////////////////////////////////
struct sys_timeouts * sys_arch_timeouts(void)
{
  u8_t curr_prio;
  s16_t err,offset;


  null_timeouts.next = NULL;
  //get current task prio
  err = OSTaskQuery(OS_PRIO_SELF,&curr_task_pcb);
  curr_prio = curr_task_pcb.OSTCBPrio;

  offset = curr_prio - LWIP_START_PRIO;
  //not called by a lwip task ,return timeouts->NULL
  if(offset < 0 || offset >= LWIP_TASK_MAX)
  {
    return &null_timeouts;
  }

  return &lwip_timeouts[offset];
}

u32_t sys_arch_sem_wait(sys_sem_t sem, u32_t timeout)
{
  u8_t err;
  u32_t ucos_timeout;
  u32_t now;
  ucos_timeout = 0;
  if(timeout != 0){
  ucos_timeout = (timeout * OS_TICKS_PER_SEC)/1000;
  if(ucos_timeout < 1)
        ucos_timeout = 1;
  else if(ucos_timeout > 65535)
        ucos_timeout = 65535;
  }
  now=OSTimeGet();      
  OSSemPend ((OS_EVENT *)sem,(u16_t)ucos_timeout, (u8_t *)&err);
  if(err == OS_TIMEOUT)
        return SYS_ARCH_TIMEOUT;
  else
        return (OSTimeGet()-now)*1000/OS_TICKS_PER_SEC;
}
////////////////////////////////////
I wrongly set LWIP_START_PRIO 6,set tcpip_thread prio 5.So
if(offset < 0 || offset >= LWIP_TASK_MAX)
  {
    return &null_timeouts;
  }
 It's my fault.The lwip is ok.

                           qiaochong
address@hidden
　　　　　　　　　　2003-11-09