arrange so that a default first indexing run for a given user runs a quick shallow pass, so that queries return some results quickly after indexing starts, avoiding user frustration

src/rcldb/rcldb.cpp

@@ -1266,20 +1266,30 @@ bool Db::maybeflush(off_t moretext)
 	if ((m_curtxtsz - m_flushtxtsz) / MB >= m_flushMb) {
 	    LOGDEB(("Db::add/delete: txt size >= %d Mb, flushing\n", 
 		    m_flushMb));
-	    string ermsg;
-	    try {
-		m_ndb->xwdb.flush();
-	    } XCATCHERROR(ermsg);
-	    if (!ermsg.empty()) {
-		LOGERR(("Db::add: flush() failed: %s\n", ermsg.c_str()));
-		return false;
-	    }
-	    m_flushtxtsz = m_curtxtsz;
+	    return doFlush();
 	}
     }
     return true;
 }
 
+bool Db::doFlush()
+{
+    if (!m_ndb) {
+	LOGERR(("Db::doFLush: no ndb??\n"));
+	return false;
+    }
+    string ermsg;
+    try {
+	m_ndb->xwdb.flush();
+    } XCATCHERROR(ermsg);
+    if (!ermsg.empty()) {
+	LOGERR(("Db::doFlush: flush() failed: %s\n", ermsg.c_str()));
+	return false;
+    }
+    m_flushtxtsz = m_curtxtsz;
+    return true;
+}
+
 // Test if doc given by udi has changed since last indexed (test sigs)
 bool Db::needUpdate(const string &udi, const string& sig)
 {

src/rcldb/rcldb.h

@@ -377,6 +377,19 @@ class Db {
     */
     static void setInPlaceReset() {o_inPlaceReset = true;}
 
+    /** Flush interval get/set. This is used by the first indexing
+	pass to override the config value and flush more rapidly
+	initially so that the user can quickly play with queries */
+    int getFlushMb() 
+    {
+	return  m_flushMb;
+    }
+    void setFlushMb(int mb)
+    {
+	m_flushMb = mb;
+    }
+    bool doFlush();
+
     /* This has to be public for access by embedded Query::Native */
     Native *m_ndb; 
 private: