public PNode <T> Get()
{
PNode <T> res = null;
lock (epool_lock)
{
int i;
for (i = 0; i < nr_ent; i++)
{
PNode <T> p = node_buffer[i];
if (p.taken == false)
{
p.taken = true;
nr_got++;
DbgAddLog(1, nr_got);
Dbg.Assert(nr_got <= nr_ent, "###pool get error");
res = p;
break;
}
}
}
return(res);
}
public void SendData(byte[] snd_buff)
{
Dbg.Assert(snd_buff.Length > 0, "Send length can not be empty!");
if (is_active == false)
{
Enter_MessageQueue(is_server, false, "Client is not connected, return!");
return;
}
#if SUPPORT_SHOW_LEN
Dbg.WriteLine("Snd:{0}", snd_buff.Length);
#endif
#if SUPPORT_SHOW_DATA
Func.DumpBuffer(snd_buff, snd_buff.Length);
#endif
try
{
if (is_server == true)
{
bw_server_write_to_client.Write(snd_buff); //向客户端发送字符串
}
else
{
bw_client_write_to_server.Write(snd_buff); //向服务器发送字符串
}
}
catch (Exception ex)
{
Enter_MessageQueue(is_server, false, "Tcp break, send fail! " + ex.Message);
}
}
void ThreadEntry_ComRecv()
{
while (true)
{
check_thread_ComRecv++;
step_thread_ComRecv = 0;
if (efifo_raw_2_str.GetValidNum() == 0)
{
step_thread_ComRecv = 1;
event_recv.WaitOne(1000); //FIFO已经空了，则在这里一直等待，直到有事件过来，可以有效降低CPU的占用率
}
else
{
step_thread_ComRecv = 2;
tyRcvNode output_rnode = efifo_raw_2_str.Output();
if (output_rnode.length > 0)
{
step_thread_ComRecv = 3;
#if false //false, true
//打印发送数据
Dbg.Write("com Data[{0}]:", raw_data_buffer.Length);
for (int i = 0; i < raw_data_buffer.Length; i++)
{
Dbg.Write(" {0:X}", raw_data_buffer[i]);
}
Dbg.Write("\r\n");
#endif
if (fm.fp.is_active == true)
{
step_thread_ComRecv = 4;
int recv_len;
byte[] recv_data;
recv_len = fm.fp.DataConvert(output_rnode.buffer, output_rnode.length, out recv_data);
if (recv_len > 0)
{
DataHandle(recv_data, recv_len, true);
}
}
else
{
step_thread_ComRecv = 5;
DataHandle(output_rnode.buffer, output_rnode.length, true);
}
}
else
{
step_thread_ComRecv = 6;
Dbg.Assert(false, "###why output data is zero length?");
}
step_thread_ComRecv = 7;
epool_rcv.Put(output_rnode.pnode);
}
step_thread_ComRecv = 8;
}
}
static public bool button_COMOpen_Click(SerialPort sp)
{
MyTimer MyTmr = null;
for (int i = 0; i < list_timer_scan_com.Count; i++)
{
if (list_timer_scan_com[i].serialport == sp)
{
MyTmr = list_timer_scan_com[i];
break;
}
}
Dbg.Assert(MyTmr != null, "###Why can not find SP!?");
bool res = false;
if ((MyTmr.button_COMOpen.ForeColor == Color.Red) && (sp.IsOpen == false)) //打开串口
{
if (Open(sp) == true)
{
MyTmr.Enabled = true;
res = true;
}
}
else if ((MyTmr.button_COMOpen.ForeColor == Color.Green) && (sp.IsOpen == true)) //关闭串口
{
MyTmr.Enabled = false;
Close(sp);
//重建一次com number 列表，因为可能COM口有变化，同样的select下次打不开了
int temp_select_index = MyTmr.comboBox_COMNumber.SelectedIndex;
Ruild_ComNumberList(MyTmr.comboBox_COMNumber);
if (MyTmr.comboBox_COMNumber.Items.Count > temp_select_index)
{
MyTmr.comboBox_COMNumber.SelectedIndex = temp_select_index;
}
}
//关闭窗口的时候，如果串口已经掉了，则会进来这里，触发comboBox_COMNumber_SelectedIndexChanged，不走关闭串口的路径，列表会重新建立
else if ((MyTmr.button_COMOpen.ForeColor == Color.Green) && (sp.IsOpen == false))
{
MyTmr.comboBox_COMNumber.SelectedIndex = -1;
}
//拔掉COM之后，is open会变成false 的
else
{
Dbg.Assert(false, "###TODO: What is this statue?!");
}
return(res);
}
public void Put(PNode <T> free_node)
{
lock (epool_lock)
{
PNode <T> p = node_buffer[free_node.index];
Dbg.Assert(p.taken == true, "###pool put error1");
p.taken = false;
nr_got--;
DbgAddLog(-1, nr_got);
if (nr_got < 0)
{
DbgDumpLog();
}
Dbg.Assert(nr_got >= 0, "###pool put error2");
}
}
static void Close(SerialPort sp)
{
com_is_closing = true;
/****************串口异常断开则直接关闭窗体 Start**************/
bool current_com_exist = false;
string[] strArr = Func.GetHarewareInfo(Func.HardwareEnum.Win32_PnPEntity, "Name");
foreach (string vPortName in SerialPort.GetPortNames())
{
if (vPortName == sp.PortName)
{
current_com_exist = true; //当前串口还在设备列表里
}
}
//关闭串口时发现正在使用的COM不见了，由于无法调用com.close()，所以只能异常退出了
if (current_com_exist == false)
{
com_is_closing = false;
//Dbg.Assert(false, "###TODO: Why can not close COM");
}
else
{
Dbg.WriteLine("COM is still here");
}
/****************串口异常断开则直接关闭窗体 End****************/
try
{
sp.Close();
Dbg.WriteLine("COM close ok");
}
catch (Exception ex)
{
com_is_closing = false;
Dbg.Assert(false, "###TODO: Why can not close COM " + ex.Message);
}
com_is_closing = false;
}
//新增一个元素到队伍尾部
public void PushTail(eNode <T> new_node)
{
lock (elink_lock) //lock里面return也是会解锁的
{
nr_entry++;
if (next_node == null)
{
next_node = new_node;
last_node = new_node;
return;
}
if (last_node != null)
{
last_node.next = new_node;
last_node = new_node;
return;
}
}
Dbg.Assert(false, "###eLink is corrupt!");
}