cdev-1.7.2n

2022-12-13 12:44:04 +01:00
commit b3b88fc333
1357 changed files with 338883 additions and 0 deletions
--- a/extensions/cdevGenericServer/include/cdevClientService.h
+++ b/extensions/cdevGenericServer/include/cdevClientService.h
@@ -0,0 +1,140 @@
+#if !defined (_CDEV_CLIENT_SERVICE_H_)
+#define _CDEV_CLIENT_SERVICE_H_
+
+#include <cdevService.h>
+#include <cdevRequestObject.h>
+#include <cdevTranObj.h>
+#include <ServerInterface.h>
+#include <AddressIndex.h>
+#include <cdevContextMap.h>
+#include <ClientInfo.h>
+#include <cdevGenericServerTags.h>
+#include <StringHash.h>
+
+// *****************************************************************************
+// * class NSCallbackArg :
+// *	This class is provided as a technique for allowing the name server
+// *	to differentiate when making monitorOn requests between two servers that
+// *	use the same service.
+// *****************************************************************************
+class GENERIC_SERVER_API NSCallbackArg
+{
+friend class cdevClientService;
+
+private:
+	char              * server;
+	cdevClientService * service;
+	
+	NSCallbackArg ( char * Server, cdevClientService * Service )
+		: server(strdup(Server)), service(Service)
+		{
+		}
+	
+	~NSCallbackArg ( void )
+		{
+		if(server) delete server;
+		}
+};
+
+
+// *****************************************************************************
+// * cdevClientService:
+// *	This is class provides the mechanisms that the cdev system will use
+// *	to communicate with the model service.
+// *****************************************************************************
+class GENERIC_SERVER_API cdevClientService :  public cdevService, 
+			   public ServerInterface,
+			   public cdevTagTableCallback
+{
+friend class cdevClientRequestObject;
+friend class cdevClientTransaction;
+
+public:
+	enum { ServiceTagBase=511 };
+
+	static int ServerTag;
+	static int HostTag; 
+	static int PortTag;
+
+	cdevClientService                 ( char * domain, char * name, cdevSystem & system = cdevSystem::defaultSystem());
+	static  void    defaultCallback   (int, void *, cdevRequestObject &, cdevData &);
+	static  void    nameServerCallback(int, void *, cdevRequestObject &, cdevData &);
+	virtual int     outputError       (int severity, char *name, char *formatString, ...);
+	ServerHandler * connect           ( char * server, char * host=NULL, unsigned short port = 0);
+	ServerHandler * disconnect        ( char * server );
+
+	int    flush            ( void );
+	int    pend             ( double seconds, int fd = -1 );
+	int    getFd            ( int * &fd, int & numFd );
+
+	int    poll             ( void );
+	int    pend             ( int fd = -1 );
+	int    getNameServer    ( cdevDevice * &ns );
+	int    getRequestObject ( char * device, char * message, cdevRequestObject * &req);
+		
+	int    enqueue          ( char * server, cdevData * in, cdevTranObj & xobj );
+	int    enqueue          ( ServerHandler * handler, cdevData * in, cdevTranObj & xobj );
+	int    enqueue          ( ServerHandler * handler, class cdevClientTransaction &, unsigned);
+	int    cancel           ( cdevTranObj & xobj );
+	int    enqueue          ( int status, ServerHandler * handler, char * binary, size_t binaryLen );
+	int    isPacketValid    ( char * binary, size_t binaryLen );
+	void   callback         ( int newTag, char * newName );
+	char * getDomain        ( void ) const { return domain; }
+
+protected:
+	virtual ~cdevClientService     ( void );
+	virtual void    fireCallback   ( int status, cdevTranObj &xobj,  cdevData *resultData, int partialTransaction = 0 );
+	virtual int     processLocal   ( cdevData * in, cdevTranObj & xobj );
+
+	char *                         domain;
+	AddressIndex                   transactions;
+	cdevCallback                   syncCallback;
+	cdevContextMap                 contexts;
+	int                            quitFlag;
+	StringHash                     nsCallbackArgs;
+	static ClientInfo              clientInfo;
+	static cdevGenericServerTagDef tags;
+
+	NSCallbackArg * getCallbackArg ( char * server );	
+};
+
+class GENERIC_SERVER_API cdevClientTransaction
+{
+private:
+	// *********************************************************************
+	// * Free list data elements and private array constructor.
+	// *********************************************************************
+	enum {ALLOCATION_COUNT = 16 };
+	static cdevClientTransaction * freeList_;
+	cdevClientTransaction        * freeListNext_;
+	cdevClientTransaction ( void );
+	
+public:
+	// *********************************************************************
+	// * Public free list interface.
+	// *********************************************************************
+	void * operator new    ( size_t size );
+	void   operator delete ( void * ptr ); 
+
+	char           server[256];
+	cdevTranObj  * xobj;
+	int            permanent;
+	int            statusCode;
+	
+	// *********************************************************************
+	// * Data elements used for restartable transactions.
+	// *********************************************************************
+	int            restartable;
+	int            contextID;
+	cdevData     * userData; 
+
+	cdevClientTransaction          ( cdevTranObj & XObj, ServerHandler &handler, 
+					 int Restartable=0, cdevData *data=NULL, 
+					 unsigned ContextID=0 );
+	virtual ~cdevClientTransaction ( void );
+	void     reconnect             (char * host=NULL, unsigned short port=0, unsigned key=0);
+	
+};
+
+
+#endif /* _CDEV_CLIENT_SERVICE_H_ */