private void AcceptCallback_Continuous(IAsyncResult ar)
{
AllDone.Set();
Socket sock = (Socket)ar.AsyncState;
Socket newSock = null;
try
{
newSock = sock.EndAccept(ar);
}
catch (Exception)
{
//Console.WriteLine(e.Message);
return;
}
byte[] bu = new byte[270];
newSock.Receive(bu, SocketFlags.None);
if (lls.l_S.Count >= Channel)
{
newSock.Close();
return;
}
SockInfo si = new SockInfo(newSock);
si.i.type = (UInt16)lls.PointInfo.type;
si.i.size = (UInt32)lls.PointInfo.File.Length;
si.i.name = lls.PointInfo.name;
si.i.number = lls.PointInfo.total_file_number;
si.file = lls.PointInfo.File;
lls.l_S.Add(si);
Serialization(lls.PointInfo);
CreatThreadPool_Download(lls);
}
private void ThreadFun_Download_File(SockInfo s, SocketModule sm)
{
SockInfo s_i = s;
SocketModule SM = sm;
if (Download_File(ref s_i, ref SM))
{
s_i.s.Close();
}
}
private void Download_Directory(object obj)
{
SocketModule s_i = (SocketModule)obj;
SockInfo si = null;
Socket s = s_i.l_S[0].s;
try
{
s.Send(BitConverter.GetBytes(s_i.PointInfo.Di_file_num), SocketFlags.None);
}
catch (Exception)
{
s_i.l_S.RemoveAt(0);
return;
}
int r = 0;
info i = new info();
int s_num = 0;
bool break_off = true;
#region 主循环
do
{
s_num++;
byte[] bu = new byte[270];
int n = 0;
try
{
n = r = s.Receive(bu, SocketFlags.None);
if (n == 0)
{
return;
}
while (n != 270)
{
r = s.Receive(bu, r, bu.Length, SocketFlags.None);
n += r;
}
}
catch (Exception)
{
s_i.l_S.RemoveAt(0);
return;
}
StructByte S_B = new StructByte();
i = (info)S_B.BytesToStruct(bu, i.GetType());
if (i.type == 0)
{
break;
}
if (i.type == 1)
{
s_i.PointInfo.filename = _rootDirectory + i.name;
int bufnum = cache_num / module_l;//单位为（module_l（b）大小）
FileStream file = new FileStream(_rootDirectory + i.name, FileMode.OpenOrCreate, FileAccess.Write, FileShare.Write);
file.SetLength(i.size);
si = new SockInfo(s_i.l_S[0].s, s_i.l_S[0].i, file);
si.buf = new byte[bufnum * module_l];
si.I_BufNum = bufnum;
break_off = Download_File(ref si, ref s_i);
if (!Stop_DownLoad && break_off)
{
s_i.m = new ModuleFalt();
s_i.PointInfo.Complete = new bool[100];
s_i.PointInfo.RW = new bool[100];
s_i.PointInfo.sPos_n = new uint[100];
Serialization(s_i.PointInfo);
}
}
else
{
DirectoryInfo target = new DirectoryInfo(_rootDirectory + i.name);
target.Create();
}
s_i.PointInfo.Di_file_num++;
if (s_i.l_S.Count == 0)
{
s_i.PointInfo.Di_file_num--;
break;
}
} while (s_num < s_i.l_S[0].i.number && !Stop_DownLoad && break_off);
#endregion
if (!Stop_DownLoad && break_off)
{
FileInfo d = new FileInfo(s_i.PointInfo.name + ".dat");
d.Delete();
}
if (break_off)
{
s.Close();
}
// Console.WriteLine("asdf");////////////////////////////////////////
}
private bool Download_File(ref SockInfo s, ref SocketModule sm)
{
SockInfo s_i = s;
FileStream file = s_i.file;
SocketModule SM = sm;
module_num = 100;
if (s_i.i.type == 2 && file.Length <= module_l * 100)
{
module_num = (int)(file.Length / module_l) + 1;
}
#region 本线程的局部变量
StructByte S_B = new StructByte();
int module_m = (int)(file.Length / module_l / 100) + 1;
if ((file.Length / module_l) < 99 * module_m && module_m != 1)
{
module_m = (int)(file.Length / module_l / 10) + 1;
module_num = 10;
}
int module = module_l + module_l_Head;
int num1 = 0; //粘包造成的第二次起初数组位置
int j = 0; //粘包造成的第二次复制起初数组位置
byte[] buf = new byte[module];
byte[] bu = new byte[module];
byte[] p_buf = new byte[module_l];
byte[] p_Head = new byte[module_l_Head];
byte[] b = new byte[8];
byte[] b1 = new byte[4];
byte[] b2 = new byte[4];
int nRecv = 0;
UInt32 sPos = 0;
UInt32 sPos_n = 0;
UInt32 num = 0;
long nLn = 0;
#endregion
#region 开始定位
int _i = 0;
for (; _i < module_num; _i++)
{
if (!SM.m.RW[_i] && !SM.m.Complete[_i] || SM.m.sPos_n[_i] != 0)
{
SM.PointInfo.RW[_i] = SM.m.RW[_i] = true;
b1 = BitConverter.GetBytes(_i);
b2 = BitConverter.GetBytes(SM.m.sPos_n[_i]);
Array.Copy(b1, b, b1.Length);
Array.Copy(b2, 0, b, b1.Length, b2.Length);
try
{
s_i.s.Send(b);
}
catch (Exception)
{
lls.l_S.RemoveAt(s_i.ID);
for (int i = 0; i < lls.l_S.Count; i++)
{
lls.l_S[i].ID = i;
}
return(false);
}
break;
}
}
if (_i == module_num)
{
b1 = BitConverter.GetBytes(-1);
b2 = BitConverter.GetBytes(0);
Array.Copy(b1, b, b1.Length);
Array.Copy(b2, 0, b, b1.Length, b2.Length);
try
{
s_i.s.Send(b);
}
catch (Exception)
{
lls.l_S.RemoveAt(s_i.ID);
for (int i = 0; i < lls.l_S.Count; i++)
{
lls.l_S[i].ID = i;
}
return(false);
}
if (s_i.i.type == 1)
{
FileInfo d = new FileInfo(SM.PointInfo.name + ".dat");
d.Delete();
}
nRecv = -1;
}
#endregion
do
{
if (nRecv == -1)
{
break;
}
#region 线程主工作循环
try
{
nRecv = s_i.s.Receive(buf, SocketFlags.None);
}
catch (Exception)
{
break;
}
if (nRecv == 0)
{
break;
}
#region 粘包处理算法
if (module >= num1 + nRecv)
{
Array.Copy(buf, 0, bu, num1, nRecv);
num1 += nRecv;
}
else
{
Array.Copy(buf, 0, bu, num1, module - num1);
j = module - num1;
num1 = bu.Length;
//Sticky_num++;
}
#endregion
if (num1 == bu.Length)
{
Array.Copy(bu, 0, p_Head, 0, p_Head.Length);
Array.Copy(bu, p_Head.Length, p_buf, 0, p_buf.Length);
Package p = (Package)S_B.TestStruct(p_Head);
sPos_n = p.module_m;
sPos = p.num;
num = p.module_n;
nLn += p.bufLen;
#region 缓冲区算法
Array.Copy(p_buf, 0, s_i.buf, s_i.BufNum * module_l, p_buf.Length);
s_i.BufNum++;
if (s_i.I_BufNum == s_i.BufNum || sPos_n == num + 1)
{
file.Seek((sPos * module_m + num - s_i.BufNum + 1) * module_l, SeekOrigin.Begin);
file.Write(s_i.buf, 0, (s_i.BufNum - 1) * module_l + p.bufLen);
SM.PointInfo.sPos_n[sPos] = num;
SM.DownLoadSize = SM.PointInfo.DownLoadSize += nLn;
nLn = 0;
s_i.BufNum = 0;
Serialization(SM.PointInfo);
if (Stop_DownLoad)
{
break;
}
}
#endregion
#region 呼叫让上传段发送某个块
if (sPos_n == num + 1)
{
int i;
for (i = 0; i < module_num; i++)
{
if (i == sPos)
{
SM.PointInfo.sPos_n[i] = 0;
SM.PointInfo.RW[i] = SM.m.RW[sPos] = false;
SM.PointInfo.Complete[i] = SM.m.Complete[sPos] = true;
}
if (!SM.m.RW[i] && !SM.m.Complete[i])
{
SM.PointInfo.RW[i] = SM.m.RW[i] = true;
b1 = BitConverter.GetBytes(i);
b2 = BitConverter.GetBytes(SM.m.sPos_n[i]);
Array.Copy(b1, b, b1.Length);
Array.Copy(b2, 0, b, b1.Length, b2.Length);
try
{
s_i.s.Send(b, SocketFlags.None);
}
catch (Exception)
{
;
}
break;
}
}
if (i == module_num)
{
nRecv = 0;
if (s_i.i.type == 1)
{
FileInfo d = new FileInfo(SM.PointInfo.name + ".dat");
d.Delete();
}
break;
}
}
#endregion
num1 = 0;
if (j != 0)
{
Array.Copy(buf, j, bu, num1, nRecv - j);
num1 += nRecv - j;
j = 0;
}
}
//#if DEBUG
// Console.WriteLine("4!!!{0} {1} {2} {3} {4} {5}", sPos, nRecv, num, num1, j, Sticky_num);
//#endif
#endregion
Thread.Sleep(1);
} while (nRecv > 0);
SM.PointInfo.RW[sPos] = SM.m.RW[sPos] = false;
SM.PointInfo.RW[sPos + 1] = SM.m.RW[sPos + 1] = false;
b = BitConverter.GetBytes(-1);
try
{
s_i.s.Send(b, SocketFlags.None);
}
catch (Exception)
{
lls.l_S.RemoveAt(s_i.ID);
for (int i = 0; i < lls.l_S.Count; i++)
{
lls.l_S[i].ID = i;
}
return(false);
}
file.Close();
return(true);
}