[raknet] Implement RakPeer::SetMTUSize(...)

raknet/MTUSize.h

@@ -36,5 +36,13 @@
 #define DEFAULT_MTU_SIZE 576
 #endif
 
+/// The largest value for an UDP datagram
+/// \sa RakPeer::SetMTUSize()
+#ifdef SAMPCLI
+#define MAXIMUM_MTU_SIZE 1492
+#else
+#define MAXIMUM_MTU_SIZE 576
+#endif
+
 #endif
 

raknet/RakPeer.cpp

@@ -346,9 +346,41 @@ void RakPeer::vftable_A4()
 	// TODO: RakPeer::vftable_A4() (saco W: 1003E520) (server W: 455810 L: 806DC70) (bot W: 4094C0 L: 8075056)
 }
 
-void RakPeer::vftable_A8()
+// --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
+// Description:
+// Change the MTU size in order to improve performance when sending large packets
+// This can only be called when not connected.
+// A too high of value will cause packets not to arrive at worst and be fragmented at best.
+// A too low of value will split packets unnecessarily.
+//
+// Parameters:
+// size: Set according to the following table:
+// 1500. The largest Ethernet packet size
+// This is the typical setting for non-PPPoE, non-VPN connections. The default value for NETGEAR routers, adapters and switches.
+// 1492. The size PPPoE prefers.
+// 1472. Maximum size to use for pinging. (Bigger packets are fragmented.)
+// 1468. The size DHCP prefers.
+// 1460. Usable by AOL if you don't have large email attachments, etc.
+// 1430. The size VPN and PPTP prefer.
+// 1400. Maximum size for AOL DSL.
+// 576. Typical value to connect to dial-up ISPs. (Default)
+//
+// Returns:
+// False on failure (we are connected).  True on success.  Maximum allowed size is MAXIMUM_MTU_SIZE
+// --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
+bool RakPeer::SetMTUSize( int size )
 {
-	// TODO: RakPeer::vftable_A8() (saco W: 10038860) (server W: 450360 L: 8070050) (bot W: 4042A0 L: 807514E)
+	if ( IsActive() )
+		return false;
+
+	if ( size < 512 )
+		size = 512;
+	else if ( size > MAXIMUM_MTU_SIZE )
+		size = MAXIMUM_MTU_SIZE;
+
+	MTUSize = size;
+
+	return true;
 }
 
 // --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

raknet/RakPeer.h

@@ -122,7 +122,16 @@ public:
 
 	void vftable_A0();
 	void vftable_A4();
-	void vftable_A8();
+
+	/// Set the MTU per datagram.  It's important to set this correctly - otherwise packets will be needlessly split, decreasing performance and throughput.
+	/// Maximum allowed size is MAXIMUM_MTU_SIZE.
+	/// Too high of a value will cause packets not to arrive at worst and be fragmented at best.
+	/// Too low of a value will split packets unnecessarily.
+	/// Recommended size is 1500
+	/// sa MTUSize.h
+	/// \pre Can only be called when not connected.
+	/// \return false on failure (we are connected), else true
+	bool SetMTUSize( int size );
 
 	/// Returns the current MTU size
 	/// \return The current MTU size

raknet/RakPeerInterface.h

@@ -118,7 +118,16 @@ public:
 
 	virtual void vftable_A0()=0;
 	virtual void vftable_A4()=0;
-	virtual void vftable_A8()=0;
+
+	/// Set the MTU per datagram.  It's important to set this correctly - otherwise packets will be needlessly split, decreasing performance and throughput.
+	/// Maximum allowed size is MAXIMUM_MTU_SIZE.
+	/// Too high of a value will cause packets not to arrive at worst and be fragmented at best.
+	/// Too low of a value will split packets unnecessarily.
+	/// Recommended size is 1500
+	/// sa MTUSize.h
+	/// \pre Can only be called when not connected.
+	/// \return false on failure (we are connected), else true
+	virtual bool SetMTUSize( int size )=0;
 	
 	/// Returns the current MTU size
 	/// \return The current MTU size

saco/saco.vcproj

@@ -20,7 +20,7 @@
 				Name="VCCLCompilerTool"
 				Optimization="0"
 				AdditionalIncludeDirectories="d3d9\include\"
-				PreprocessorDefinitions="WIN32;_DEBUG;_WINDOWS;_USRDLL;SACO_EXPORTS"
+				PreprocessorDefinitions="WIN32;_DEBUG;_WINDOWS;_USRDLL;SACO_EXPORTS;SAMPCLI"
 				MinimalRebuild="TRUE"
 				BasicRuntimeChecks="3"
 				RuntimeLibrary="1"
@@ -72,7 +72,7 @@
 			<Tool
 				Name="VCCLCompilerTool"
 				AdditionalIncludeDirectories="d3d9\include\"
-				PreprocessorDefinitions="WIN32;NDEBUG;_WINDOWS;_USRDLL;SACO_EXPORTS"
+				PreprocessorDefinitions="WIN32;NDEBUG;_WINDOWS;_USRDLL;SACO_EXPORTS;SAMPCLI"
 				RuntimeLibrary="0"
 				StructMemberAlignment="1"
 				BufferSecurityCheck="FALSE"