- Added bridge functions to histmemsec to make it look more like histmem

- Modifed many modules using histmem to work also with histmemsec
- Extended tasker with task names and task groups
- There is a new taskobj which allows to list tasks and to interact with them.
- Task now supports running Tcl functions as tasks
- There is a new experimental sctcomtask module which allows to define communication
  tasks against a scriptcontext. This is a new feature which should facilitate
  writing sequential scripts using asynchronous communication.
- A fix to make spss7 work when there are no switches
- ORION support for single X. TRICS measures crystals hanging down, ORION
  standing up


SKIPPED:
	psi/ease.c
	psi/faverage.c
	psi/jvlprot.c
	psi/make_gen
	psi/pardef.c
	psi/polterwrite.c
	psi/psi.c
	psi/sinq.c
	psi/spss7.c

sctcomtask.h

@@ -0,0 +1,78 @@
+/**
+ * This is another approach at using the scriptcontext system. It introduces 
+ * the concept of a communication task which is executed against a device serializer, 
+ * accessed via a given ScriptContext. Clients can:
+ * - Create CommTasks
+ * - Figure out their state
+ * - Retrieve reply data 
+ * - wait for a ComTask to finish.
+ *
+ * The the purpose sctcomtask will keep a cache of pending and finished communications. 
+ * Old runs will be deleted periodically. Nevertheless the cache can be listed in order 
+ * to figure out what happened.
+ *
+ * The intended use is for C-code or scripts to interact in a serial manner with 
+ * the asynchronous communication system implemented in devser and ascon. As a 
+ * standalone implementation would share tons of code with scriptcontext, this has 
+ * been implemented as an add on module to scriptcontext. 
+ *
+ * copyright: see file COPYRIGHT
+ *
+ * Mark Koennecke, December 2012
+ */
+#ifndef __SCTCOMTASK
+#define __SCTCOMTASK
+#include <sics.h>
+
+typedef struct ComTaskManager ComTaskManager;
+
+typedef enum {
+  eWaiting,
+  eRunning,
+  eFinished,
+  eUnknown
+} ComTaskState;
+
+
+/**
+ * Standard SIS installation function
+ */
+int SctMakeComTask(SConnection * con, SicsInterp * sics,
+                   void *object, int argc, char *argv[]);
+/*============================ client interface section ===========================*/
+/**
+ * Start a communication task
+ * @param manager the communication task manager to start the communication with
+ * @param priority The priority of the task
+ * @param sendData The data to send to the device
+ * @return A positive com task ID on success, -1 on failure.
+ */
+int StartComTask(ComTaskManager *manager, char *priority, char *sendData);
+/**
+ * Retrive the state of a communication task
+ * @param manager the communication task manager
+ * @param comTaskID The ID of the communication task to test
+ * @return The state of the task
+ */
+ComTaskState GetComTaskState(ComTaskManager *manager, int comTaskID);
+/**
+ * Retrive the reply of a communication task
+ * @param manager the communication task manager
+ * @param comTaskID The ID of the communication task to test
+ * @param length An output parameter set to the length of the data returned
+ * @return NULL when this is called erroneously, the reply data else. The client is 
+ * not supposed to delete the reply data. On the other hand, the client cannot rely 
+ * on the data to be available for ever. Make a copy if long term storage of the reply 
+ * data is necessary.    
+ */
+const char *GetComTaskReply(ComTaskManager *manager, int comTaskID, int *length);
+/**
+ * Wait for a communication task to finish
+ * @param manager the communication task manager
+ * @param comTaskID The ID of the communication task to test
+ * Please note that eventual timeouts are handled by devser and ascon. 
+ */
+void ComTaskWait(ComTaskManager *manager, int comTaskID);
+
+
+#endif