--- a/brewco/brewco.h	Sat Nov 28 13:47:00 2015 +0100
+++ b/brewco/brewco.h	Sat Nov 28 20:15:38 2015 +0100
@@ -115,6 +115,8 @@
     int                 version;                /* Record version               */
     char		*uuid;			/* uuid code			*/
     char                *name;                  /* Unit name                    */
+    int			number;			/* Unit number			*/
+    int			active;			/* 0/1 active unit		*/
     sensor_var		*hlt_sensor;		/* HLT sensor			*/
     switch_var		*hlt_heater;		/* HLT heater			*/
     int			hlt_heater_mltfirst;	/* HLT heater MLT high priority	*/
@@ -272,4 +274,36 @@
 
 
 
+/*
+ * Brewing state file ~/.brewco/var/brewing.xml
+ * If present a brew session is running
+ */
+
+#define	MAISH_NA	0			/* Not in any state yet		*/
+#define	MASIH_PROMPT	1			/* Prompt the user		*/
+#define	MAISH_HEATING	2			/* Heating phase		*/
+#define	MAISH_REST	3			/* Rest phase			*/
+#define	MAISH_DONE	4			/* This step is done		*/
+
+
+typedef struct _brew_session {
+    char		*uuid_recipe;		/* Brewing this recipe		*/
+    char		*uuid_unit;		/* Brewing unit			*/
+    int			premash;		/* In premash state		*/
+    int			mashstep;		/* In or into maishstep or -1	*/
+    int			mashstate;		/* State this step is in	*/
+    int			resttime;		/* Rest time downcouner		*/
+    int			iodine;			/* Mash iodine test		*/
+    int			mashremove;		/* Mash remove step		*/
+    int			boilheating;		/* Heat for boiling		*/
+    int			boiling;		/* Boiling started		*/
+    int			boiltimer;		/* Boiling downcount		*/
+    int			cooling;		/* Cooling phase		*/
+    int			whirlpool;		/* Whirlpool phase		*/
+    int			cleanup;		/* Cleanup phase		*/
+    time_t		starttime;		/* Start of brew		*/
+    time_t		endtime;		/* End of brew			*/
+} brew_session;
+
+
 #endif