/*	Implementation of cross call procedure table.
	In this table a linked list of cross call entries is kept.
	A cross call entry is a pair of a cross call code (CcRq...) number (see intrface_121.h)
	and a pointer to a cross call procedure.
*/
#ifndef CROSSCALLPROCEDURETABLE_H
#define CROSSCALLPROCEDURETABLE_H

#include "util_121.h"

/* A CrossCallProcedure is a procedure that modifies a CrossCallInfo struct. */
typedef void (*CrossCallProcedure)(CrossCallInfo *);

typedef struct _crosscallentry *CrossCallEntry;
typedef struct _crosscallproceduretable *CrossCallProcedureTable;

/* NewCrossCallEntry creates a CrossCallEntry with cce_next field NULL. */
extern CrossCallEntry NewCrossCallEntry (int cce_code, CrossCallProcedure cce_proc);

/* FreeCrossCallEntry frees a CrossCallEntry. */
extern void FreeCrossCallEntry (CrossCallEntry cce);

/* EmptyCrossCallProcedureTable creates an empty table. */
extern CrossCallProcedureTable EmptyCrossCallProcedureTable (void);

/* GetCrossCallProcedureTableSize returns the current number of installed cross call procedures. */
extern int GetCrossCallProcedureTableSize (CrossCallProcedureTable ccpt);

/* FreeCrossCallProcedureTable frees a CrossCallProcedureTable. */
extern void FreeCrossCallProcedureTable (CrossCallProcedureTable ccpt);

/* AddCrossCallEntry adds the given entry if not already present. */
extern void AddCrossCallEntry (CrossCallProcedureTable ccpt, int cce_code, CrossCallProcedure cce_proc);

/* AddCrossCallEntries (table,entries) adds the entries to table. */
extern void AddCrossCallEntries (CrossCallProcedureTable theTable, CrossCallProcedureTable entries);

/* FindCrossCallEntry returns the found CrossCallProcedure or NULL if not found.*/
extern CrossCallProcedure FindCrossCallEntry (CrossCallProcedureTable ccpt, int cce_code);

#endif
