C++ XmlDoc::set20方法代码示例

// . this is called
// . destroys the UdpSlot if false is returned
void handleRequest20 ( UdpSlot *slot , long netnice ) {
	// . check g_errno
	// . before, we were not sending a reply back here and we continued
	//   to process the request, even though it was empty. the slot
	//   had a NULL m_readBuf because it could not alloc mem for the read
	//   buf i'm assuming. and the slot was saved in a line below here...
	//   state20->m_msg22.m_parent = slot;
	if ( g_errno ) {
		log("net: Msg20 handler got error: %s.",mstrerror(g_errno));
		g_udpServer.sendErrorReply ( slot , g_errno );
		return;
	}

	// ensure request is big enough
	if ( slot->m_readBufSize < (long)sizeof(Msg20Request) ) {
		g_udpServer.sendErrorReply ( slot , EBADREQUESTSIZE );
		return;
	}

	// parse the request
	Msg20Request *req = (Msg20Request *)slot->m_readBuf;

	// . turn the string offsets into ptrs in the request
	// . this is "destructive" on "request"
	long nb = req->deserialize();
	// sanity check
	if ( nb != slot->m_readBufSize ) { char *xx = NULL; *xx = 0; }

	// sanity check, the size include the \0
	if ( req->size_coll <= 1 || *req->ptr_coll == '\0' ) {
		log("query: Got empty collection in msg20 handler. FIX!");
		char *xx =NULL; *xx = 0; 
	}
	// if it's not stored locally that's an error
	if ( req->m_docId >= 0 && ! g_titledb.isLocal ( req->m_docId ) ) {
		log("query: Got msg20 request for non-local docId %lli",
		    req->m_docId);
	        g_udpServer.sendErrorReply ( slot , ENOTLOCAL ); 
		return; 
	}

	// sanity
	if ( req->m_docId == 0 && ! req->ptr_ubuf ) { char *xx=NULL;*xx=0; }

	long long startTime = gettimeofdayInMilliseconds();

	// alloc a new state to get the titlerec
	XmlDoc *xd;

	try { xd = new (XmlDoc); }
	catch ( ... ) { 
		g_errno = ENOMEM;
		log("query: msg20 new(%i): %s", sizeof(XmlDoc),
		    mstrerror(g_errno));
		g_udpServer.sendErrorReply ( slot, g_errno ); 
		return; 
	}
	mnew ( xd , sizeof(XmlDoc) , "xd20" );

	// ok, let's use the new XmlDoc.cpp class now!
	xd->set20 ( req );
	// encode slot
	xd->m_slot = slot;
	// set the callback
	xd->setCallback ( xd , gotReplyWrapperxd );
	// set set time
	xd->m_setTime = startTime;
	xd->m_cpuSummaryStartTime = 0;
	// . now as for the msg20 reply!
	// . TODO: move the parse state cache into just a cache of the
	//   XmlDoc itself, and put that cache logic into XmlDoc.cpp so
	//   it can be used more generally.
	Msg20Reply *reply = xd->getMsg20Reply ( );
	// this is just blocked
	if ( reply == (void *)-1 ) return;
	// got it?
	gotReplyWrapperxd ( xd );
}