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/*******************************************************/
/* "C" Language Integrated Production System */
/* */
/* CLIPS Version 6.40 04/04/19 */
/* */
/* ROUTER HEADER FILE */
/*******************************************************/
/*************************************************************/
/* Purpose: Provides a centralized mechanism for handling */
/* input and output requests. */
/* */
/* Principal Programmer(s): */
/* Gary D. Riley */
/* */
/* Contributing Programmer(s): */
/* */
/* Revision History: */
/* */
/* 6.24: Removed conversion of '\r' to '\n' from the */
/* EnvGetcRouter function. */
/* */
/* Renamed BOOLEAN macro type to intBool. */
/* */
/* Added support for passing context information */
/* to the router functions. */
/* */
/* 6.30: Fixed issues with passing context to routers. */
/* */
/* Added AwaitingInput flag. */
/* */
/* Added const qualifiers to remove C++ */
/* deprecation warnings. */
/* */
/* Converted API macros to function calls. */
/* */
/* Added STDOUT and STDIN logical name */
/* definitions. */
/* */
/* 6.31: Compiler warning fix. */
/* */
/* 6.40: Added InputBufferCount function. */
/* */
/* Added check for reuse of existing router name. */
/* */
/* Removed LOCALE definition. */
/* */
/* Pragma once and other inclusion changes. */
/* */
/* Added support for booleans with <stdbool.h>. */
/* */
/* Changed return values for router functions. */
/* */
/* Removed use of void pointers for specific */
/* data structures. */
/* */
/* ALLOW_ENVIRONMENT_GLOBALS no longer supported. */
/* */
/* Callbacks must be environment aware. */
/* */
/* UDF redesign. */
/* */
/* Removed WPROMPT, WDISPLAY, WTRACE, and WDIALOG */
/* logical names. */
/* */
/*************************************************************/
#ifndef _H_router
#pragma once
#define _H_router
#include <stdio.h>
typedef struct router Router;
typedef bool RouterQueryFunction(Environment *,const char *,void *);
typedef void RouterWriteFunction(Environment *,const char *,const char *,void *);
typedef void RouterExitFunction(Environment *,int,void *);
typedef int RouterReadFunction(Environment *,const char *,void *);
typedef int RouterUnreadFunction(Environment *,const char *,int,void *);
extern const char *STDOUT;
extern const char *STDIN;
extern const char *STDERR;
extern const char *STDWRN;
#define ROUTER_DATA 46
struct router
{
const char *name;
bool active;
int priority;
void *context;
RouterQueryFunction *queryCallback;
RouterWriteFunction *writeCallback;
RouterExitFunction *exitCallback;
RouterReadFunction *readCallback;
RouterUnreadFunction *unreadCallback;
Router *next;
};
struct routerData
{
size_t CommandBufferInputCount;
size_t InputUngets;
bool AwaitingInput;
const char *LineCountRouter;
const char *FastCharGetRouter;
const char *FastCharGetString;
long FastCharGetIndex;
struct router *ListOfRouters;
FILE *FastLoadFilePtr;
FILE *FastSaveFilePtr;
bool Abort;
};
#define RouterData(theEnv) ((struct routerData *) GetEnvironmentData(theEnv,ROUTER_DATA))
void InitializeDefaultRouters(Environment *);
void WriteString(Environment *,const char *,const char *);
void Write(Environment *,const char *);
void Writeln(Environment *,const char *);
int ReadRouter(Environment *,const char *);
int UnreadRouter(Environment *,const char *,int);
void ExitRouter(Environment *,int);
void AbortExit(Environment *);
bool AddRouter(Environment *,const char *,int,
RouterQueryFunction *,RouterWriteFunction *,
RouterReadFunction *,RouterUnreadFunction *,
RouterExitFunction *,void *);
bool DeleteRouter(Environment *,const char *);
bool QueryRouters(Environment *,const char *);
bool DeactivateRouter(Environment *,const char *);
bool ActivateRouter(Environment *,const char *);
void SetFastLoad(Environment *,FILE *);
void SetFastSave(Environment *,FILE *);
FILE *GetFastLoad(Environment *);
FILE *GetFastSave(Environment *);
void UnrecognizedRouterMessage(Environment *,const char *);
void PrintNRouter(Environment *,const char *,const char *,unsigned long);
size_t InputBufferCount(Environment *);
Router *FindRouter(Environment *,const char *);
bool PrintRouterExists(Environment *,const char *);
#endif /* _H_router */