cdev-1.7.2n

extensions/cdevGenericServer/cdevServer/ClientAcceptor.cc

@@ -0,0 +1,87 @@
+#include "ClientAcceptor.h"
+#include "ClientHandler.h"
+
+// *****************************************************************************
+// * ClientAcceptor:
+// *	Default constructor for the ClientAcceptor class
+// *****************************************************************************
+ClientAcceptor::ClientAcceptor (cdevSessionManager & s) 
+	: server(s) 
+	{
+	}
+
+
+// *****************************************************************************
+// * ClientAcceptor::~ClientAcceptor:
+// *	Destructor for the ClientAcceptor class
+// *****************************************************************************
+ClientAcceptor::~ClientAcceptor (void) 
+	{
+	if(reactor) reactor->extractHandler(this);
+	handleClose();	
+	}
+
+// *****************************************************************************
+// * open:
+// *	Initializes the listening socket
+// *****************************************************************************
+int ClientAcceptor::open (const cdevInetAddr &addr) 
+	{
+	int result = -1;
+	if (this->acceptor.open (addr, TRUE) == -1) 
+		{
+		outputError(CDEV_SEVERITY_SEVERE, (char *)getName(), 
+			    "Failed to open listening port");
+		}
+	else if (acceptor.setFlags (O_NONBLOCK) == -1) 
+		{
+		outputError(CDEV_SEVERITY_ERROR, (char *)getName(),
+			    "Could not enable non-blocking I/O");
+		}	
+	else result = 0;
+	return result;
+	}
+
+// *****************************************************************************
+// * getHandle:
+// *	Returns the device descriptor of the listening socket
+// *****************************************************************************
+int ClientAcceptor::getHandle   (void) const 
+	{ 
+	return acceptor.getHandle (); 
+	}
+
+// *****************************************************************************
+// * handleInput:
+// *	Accepts a connection on a listening socket and then creates a
+// *	ClientHandler class to manage the connection.
+// *****************************************************************************
+int ClientAcceptor::handleInput (void) 
+	{
+	cdevInetAddr addr; 
+	ClientHandler *svc_handler = new ClientHandler(server);
+	if (acceptor.accept (*svc_handler, &addr) != -1) 
+		{
+		svc_handler->open(this);
+		}
+	else
+		{
+		outputError(CDEV_SEVERITY_ERROR, (char *)getName(),
+			    "Failed to accept connection");
+		}
+	// *********************************************************************
+	// * Always return 0... Otherwise, the accepting socket will
+	// * be destroyed and a crippled server is all that will remain.
+	// *********************************************************************
+	return 0;
+	}
+
+// *****************************************************************************
+// * handleClose:
+// *	Closes the listening socket
+// *****************************************************************************
+int ClientAcceptor::handleClose (void)
+	{
+	acceptor.close ();
+	return 0;
+	}