TCP高性能代码..doc

.?[代码]Program.cs???? 跳至 [2] [3] [全屏预览] view source print? 01 class Program 02 { 03 ????//This variable determines the number of 04 ????//SocketAsyncEventArg objects put in the pool of objects for receive/send. 05 ????//The value of this variable also affects the Semaphore. 06 ????//This app uses a Semaphore to ensure that the max # of connections 07 ????//value does not get exceeded. 08 ????//Max # of connections to a socket can be limited by the Windows Operating System 09 ????//also. 10 ????public const Int32 maxNumberOfConnections = 3000; 11 ?? 12 ????//If this port # will not work for you, its okay to change it. 13 ????public const Int32 port = 4444; 14 ?? 15 ????//You would want a buffer size larger than 25 probably, unless you know the 16 ????//data will almost always be less than 25. It is just 25 in our test app. 17 ????public const Int32 testBufferSize = 25; 18 ?? 19 ????//This is the maximum number of asynchronous accept operations that can be 20 ????//posted simultaneously. This determines the size of the pool of 21 ????//SocketAsyncEventArgs objects that do accept operations. Note that this 22 ????//is NOT the same as the maximum # of connections. 23 ????public const Int32 maxSimultaneousAcceptOps = 10; 24 ?? 25 ????//The size of the queue of incoming connections for the listen socket. 26 ????public const Int32 backlog = 100; 27 ?? 28 ????//For the BufferManager 29 ????public const Int32 opsToPreAlloc = 2;??? // 1 for receive, 1 for send 30 ?? 31 ????//allows excess SAEA objects in pool. 32 ????public const Int32 excessSaeaObjectsInPool = 1; 33 ?? 34 ????//This number must be the same as the value on the client. 35 ????//Tells what size the message prefix will be. Dont change this unless 36 ????//you change the code, because 4 is the length of 32 bit integer, which 37 ????//is what we are using as prefix. 38 ????public const Int32 receivePrefixLength = 4; 39 ????p