improved structure and thread safety

2003-02-12 19:06:15 +00:00
parent 234c515b05
commit 644e6eb273
78 changed files with 2691 additions and 4956 deletions
@@ -0,0 +1,138 @@
+
+/*************************************************************************\
+* Copyright (c) 2002 The University of Chicago, as Operator of Argonne
+*     National Laboratory.
+* Copyright (c) 2002 The Regents of the University of California, as
+*     Operator of Los Alamos National Laboratory.
+* EPICS BASE Versions 3.13.7
+* and higher are distributed subject to a Software License Agreement found
+* in file LICENSE that is included with this distribution. 
+\*************************************************************************/
+
+#ifndef casStrmClienth
+#define casStrmClienth
+
+#include "casClient.h"
+
+enum xBlockingStatus { xIsBlocking, xIsntBlocking };
+
+//
+// casStrmClient 
+//
+class casStrmClient : 
+    public casClient,
+	public tsDLNode < casStrmClient > {
+public:
+	casStrmClient ( caServerI &, clientBufMemoryManager & );
+	virtual ~casStrmClient();
+	void show ( unsigned level ) const;
+    void flush ();
+
+	//
+	// one function for each CA request type that has
+	// asynchronous completion
+	//
+	virtual caStatus createChanResponse ( 
+            const caHdrLargeArray &, const pvAttachReturn & );
+	caStatus readResponse ( casChannelI *pChan, const caHdrLargeArray &msg,
+			const smartConstGDDPointer &pDesc, const caStatus status);
+	caStatus readNotifyResponse ( casChannelI *pChan, const caHdrLargeArray &msg,
+			const smartConstGDDPointer &pDesc, const caStatus status);
+	caStatus writeResponse ( casChannelI &, 
+            const caHdrLargeArray & msg, const caStatus status );
+	caStatus writeNotifyResponse ( casChannelI &, 
+            const caHdrLargeArray &, const caStatus status );
+	caStatus monitorResponse ( casChannelI & chan, const caHdrLargeArray & msg, 
+		const smartConstGDDPointer & pDesc, const caStatus status );
+    caStatus enumPostponedCreateChanResponse ( casChannelI & chan, 
+        const caHdrLargeArray & hdr, unsigned dbrType );
+	caStatus channelCreateFailedResp ( const caHdrLargeArray &, 
+        const caStatus createStatus );
+
+	caStatus disconnectChan ( caResId id );
+	unsigned getDebugLevel () const;
+    virtual void hostName ( char * pBuf, unsigned bufSize ) const = 0;
+	void userName ( char * pBuf, unsigned bufSize ) const;
+
+private:
+	chronIntIdResTable < casChannelI > chanTable;
+	tsDLList < casChannelI > chanList;
+	char * pUserName;
+	char * pHostName;
+
+	//
+	// createChannel()
+	//
+	caStatus createChannel ( const char *pName );
+
+	//
+	// verify read/write requests
+	//
+	caStatus verifyRequest ( casChannelI * & pChan );
+
+	//
+	// one function for each CA request type
+	//
+    caStatus uknownMessageAction ();
+	caStatus eventAddAction ();
+	caStatus eventCancelAction ();
+	caStatus readAction ();
+	caStatus readNotifyAction ();
+	caStatus writeAction ();
+	caStatus eventsOffAction ();
+	caStatus eventsOnAction ();
+	caStatus readSyncAction ();
+	caStatus clearChannelAction ();
+	caStatus claimChannelAction ();
+	caStatus writeNotifyAction ();
+	caStatus clientNameAction ();
+	caStatus hostNameAction ();
+
+	//
+	// accessRightsResponse()
+	//
+	caStatus accessRightsResponse (casChannelI *pciu);
+
+	//
+	// these prepare the gdd based on what is in the ca hdr
+	//
+	caStatus read ( smartGDDPointer & pDesc );
+	caStatus write ();
+
+	caStatus writeArrayData();
+	caStatus writeScalarData();
+	caStatus writeString();
+
+	//
+	// io independent send/recv
+	//
+    outBufClient::flushCondition xSend ( char * pBuf, bufSizeT nBytesAvailableToSend,
+			bufSizeT nBytesNeedToBeSent, bufSizeT & nBytesSent );
+    inBufClient::fillCondition xRecv ( char * pBuf, bufSizeT nBytesToRecv,
+			inBufClient::fillParameter parm, bufSizeT & nByesRecv );
+
+	virtual xBlockingStatus blockingState () const = 0;
+
+	virtual outBufClient::flushCondition osdSend ( const char *pBuf, bufSizeT nBytesReq,
+			bufSizeT & nBytesActual ) = 0;
+	virtual inBufClient::fillCondition osdRecv ( char *pBuf, bufSizeT nBytesReq,
+			bufSizeT &nBytesActual ) = 0;
+
+    caStatus readNotifyFailureResponse ( const caHdrLargeArray & msg, 
+        const caStatus ECA_XXXX );
+
+    caStatus monitorFailureResponse ( const caHdrLargeArray & msg, 
+        const caStatus ECA_XXXX );
+
+	caStatus writeNotifyResponseECA_XXX ( const caHdrLargeArray &msg,
+			const caStatus status );
+
+	caStatus casMonitorCallBack ( casMonitor &,
+        const smartConstGDDPointer & pValue );
+
+	casStrmClient ( const casStrmClient & );
+	casStrmClient & operator = ( const casStrmClient & );
+};
+
+#endif // casStrmClienth
+