initial importHEADmain

1 files changed, 120 insertions, 0 deletions

diff --git a/src/parsec_server/include/net_udpdriver.h b/src/parsec_server/include/net_udpdriver.h
new file mode 100755
index 0000000..fd2dcc5
--- /dev/null
+++ b/src/parsec_server/include/net_udpdriver.h
@@ -0,0 +1,120 @@
+/*
+* PARSEC HEADER: NET_UDPDriver.h
+*/
+
+#ifndef _NET_UDPDRIVER_H_
+#define _NET_UDPDRIVER_H_
+
+// NOTE: 
+//
+// platform dependent implementations are in e.g. NW_UDPDRIVER.CPP
+//
+#include <stdio.h>
+#include <stdlib.h>
+//#include <string.h>
+//#include <stdarg.h>
+#include <ctype.h>
+#include <vector>
+
+#ifndef PARSEC_SERVER
+	//FIXME: we should do a e_glob_svm.h just like e_glob_sv.h
+	#define TheUDPDriver		(NET_UDPDriver::GetUDPDriver())
+#endif // !PARSEC_SERVER
+
+
+/* Following shortens all the type casts of pointer arguments */
+#define	SA	struct sockaddr
+
+
+// class defining a UDP driver ------------------------------------------------
+//
+class NET_UDPDriver
+{
+protected:
+	int		m_socket;
+	int		m_selected_port;
+	char	m_szInterface[ MAX_IPADDR_LEN + 1 ];
+	char	m_szIP       [ MAX_IPADDR_LEN + 1 ];
+	node_t	m_Node;								// node containing the IP adress
+	std::vector<node_t >		NetworkInterfaces;
+	int 	m_PreferredInterface;
+	bool 	m_DriverRunning;
+protected:
+	// init the OS API
+	int	_InitOSAPI();
+	
+	// kill the OS API
+	int	_KillOSAPI();
+	
+	// open and initialize the UDP socket 
+	int	_OpenSocket();
+	
+	// close the UDP socket 
+	int	_CloseSocket();
+	
+	// get the local IP 
+	int	_RetrieveLocalIP();
+
+	// setup the interface
+	void _SetupInterface(node_t *p_Node);
+
+	NET_UDPDriver();
+	~NET_UDPDriver();
+
+public:
+
+	// SINGLETON pattern
+	static NET_UDPDriver* GetUDPDriver()
+	{
+		static NET_UDPDriver _TheUDPDriver;
+		return &_TheUDPDriver;
+	}
+	
+	// init the UDP driver
+	int	InitDriver( char* szInterface, int selected_port );
+	
+	// kill the UDP driver
+	int KillDriver();
+	
+	// fetch a UDP packet from the socket
+	int FetchPacket( char* buf, int maxlen, SA* saddr );
+	
+	// send a UDP packet on the socket
+	int SendPacket( char* buf, int pktsize, SA* saddr );
+	
+	// sleep until we have a network input or a timeout occurs
+	int SleepUntilNetInput( int timeout_msec )
+	{
+		fd_set			rset;
+		struct timeval	select_timeout;
+		
+		// initialize socket set
+		FD_ZERO( &rset );
+		FD_SET( m_socket, &rset );
+		
+		select_timeout.tv_sec  = 0;
+		select_timeout.tv_usec = timeout_msec * 1000;
+		
+		// select for readable socket
+		int rc = select( m_socket + 1, &rset, NULL, NULL, &select_timeout );
+		return rc;
+	}
+
+	// resolve a hostname using the DNS service
+	int ResolveHostName( char *hostname, node_t* node );
+
+
+	// ------------------------------------------------------------------------
+	// accessor methods
+	// ------------------------------------------------------------------------
+	int			GetSocket()	{ return m_socket; }
+	node_t*		GetNode()	{ return &m_Node; }
+	int 		GetPreferredInterface() { return m_PreferredInterface; }
+	void		SetPreferredInterface(int p_Interface) { m_PreferredInterface = p_Interface; }
+	int 		IsRunning() { return m_DriverRunning; }
+};
+
+
+
+#endif // _NET_UDPDRIVER_H_
+