* querylog: major refactor: change on-disk format and API

speed up decoding
speed up search
compatible with previous format (when not searching)

querylog/querylog_test.go

@@ -42,7 +42,35 @@ func TestQueryLog(t *testing.T) {
 		OlderThan: time.Now(),
 	}
 	d := l.getData(params)
-	m := d[0]
+	mdata := d["data"].([]map[string]interface{})
+	m := mdata[0]
 	mq := m["question"].(map[string]interface{})
 	assert.True(t, mq["host"].(string) == "example.org")
 }
+
+func TestJSON(t *testing.T) {
+	s := `
+	{"keystr":"val","obj":{"keybool":true,"keyint":123456}}
+	`
+	k, v, jtype := readJSON(&s)
+	assert.Equal(t, jtype, int32(jsonTStr))
+	assert.Equal(t, "keystr", k)
+	assert.Equal(t, "val", v)
+
+	k, v, jtype = readJSON(&s)
+	assert.Equal(t, jtype, int32(jsonTObj))
+	assert.Equal(t, "obj", k)
+
+	k, v, jtype = readJSON(&s)
+	assert.Equal(t, jtype, int32(jsonTBool))
+	assert.Equal(t, "keybool", k)
+	assert.Equal(t, "true", v)
+
+	k, v, jtype = readJSON(&s)
+	assert.Equal(t, jtype, int32(jsonTNum))
+	assert.Equal(t, "keyint", k)
+	assert.Equal(t, "123456", v)
+
+	k, v, jtype = readJSON(&s)
+	assert.True(t, jtype == jsonTErr)
+}