Fix gigabit corruption.

Add scaffolding to show json metadata in summaries. *WIP*

Msg20.cpp

@@ -587,6 +587,12 @@ bool Msg20Reply::sendReply ( XmlDoc *xd ) {
 				    gettimeofdayInMilliseconds() ,
 				    color                        );
 	
+	// FIXME
+	//int32_t mdLen = 0;
+	// char* md = xd->getMetadata(&mdLen);
+	// if(mdLen) {
+	// 	log("this has metadata %s", md);
+	// }
 	// . del the list at this point, we've copied all the data into reply
 	// . this will free a non-null State20::m_ps (ParseState) for us
 	mdelete ( xd , sizeof(XmlDoc) , "xd20" );

XmlDoc.cpp

@@ -1446,14 +1446,14 @@ bool XmlDoc::set4 ( SpiderRequest *sreq      ,
 	if ( m_sreqValid )
 		m_recycleContent = m_sreq.m_recycleContent;
 
-    if(metadata) {
-        log("metadata is %s", metadata);
-    } else {
-        log("metadata is empty");
-    }
+	if(metadata) {
+		log("metadata is %s", metadata);
+	} else {
+		log("metadata is empty");
+	}
 	m_hasMetadata = (bool)metadata;
-    ptr_metadata = metadata;
-    size_metadata = metadataLen;
+	ptr_metadata = metadata;
+	size_metadata = metadataLen;
 	return true;
 }
 
@@ -10670,6 +10670,18 @@ bool XmlDoc::addGigabits(Words *ww,int64_t docId,Sections *sections,
 	return true;
 }
 
+
+char* XmlDoc::getMetadata(int32_t* retlen) {
+	if(!m_hasMetadata) {
+		*retlen = 0;
+		return NULL;
+	}
+
+	*retlen = size_metadata;
+	return ptr_metadata;
+
+}
+
 // . this is called by Msg40.cpp to intersect gigabits from multiple docs
 // . returns -1 and sets g_errno on error
 // . returns # of GigabitInfos stored into "top"

XmlDoc.h

@@ -599,6 +599,7 @@ class XmlDoc {
 	char *getMetaDescription( int32_t *mdlen ) ;
 	char *getMetaSummary ( int32_t *mslen ) ;
 	char *getMetaKeywords( int32_t *mklen ) ;
+	char *getMetadata(int32_t* retlen);
 	bool addGigabits ( char *s , int64_t docId , uint8_t langId ) ;
 	bool addGigabits2 ( char *s,int32_t slen,int64_t docId,uint8_t langId);
 	bool addGigabits ( class Words *ww ,