/*				    				     HTEvntrg.c**	EVENT DISPATCHER****	(c) COPYRIGHT MIT 1996.**	Please first read the full copyright statement in the file COPYRIGH.**      @(#) $Id: HTEvent.c,v 2.9 1999/02/22 22:10:11 frystyk Exp $****	The event dispatcher allows applications to register their own event**	models. They may register the standard HTEventrg methods from **	HTEventrg.c, of implement their functionality with their on methods.**** Authors:**	EGP	Eric Gordon Prud'hommeuax** Bugs***//* Implementation dependent include files */#include "wwwsys.h"#include "WWWUtil.h"#include "HTEvent.h"					 /* Implemented here */PRIVATE HTEvent_registerCallback * RegisterCBF = NULL;PRIVATE HTEvent_unregisterCallback * UnregisterCBF = NULL;/* ------------------------------------------------------------------------- */PUBLIC void HTEvent_setRegisterCallback(HTEvent_registerCallback * registerCBF){    HTTRACE(CORE_TRACE, "Event....... registering %p\n" _ registerCBF);    RegisterCBF = registerCBF;}PUBLIC void HTEvent_setUnregisterCallback(HTEvent_unregisterCallback * unregisterCBF){    HTTRACE(CORE_TRACE, "Event....... registering %p\n" _ unregisterCBF);    UnregisterCBF = unregisterCBF;}PUBLIC BOOL HTEvent_isCallbacksRegistered (void){    return (RegisterCBF && UnregisterCBF);}PUBLIC int HTEvent_unregister (SOCKET s, HTEventType type){    if (!UnregisterCBF) {	HTTRACE(CORE_TRACE, "Event....... No handler registered\n");        return -1;    }    return (*UnregisterCBF)(s, type);}PUBLIC int HTEvent_register(SOCKET s, HTEventType type, HTEvent * event){    if (!RegisterCBF) {	HTTRACE(CORE_TRACE, "Event....... No handler registered\n");        return -1;    }    return (*RegisterCBF)(s, type, event);}PUBLIC BOOL HTEvent_setCallback(HTEvent * event, HTEventCallback * cbf){    if (!event) return NO;    event->cbf = cbf;    return YES;}PUBLIC HTEvent * HTEvent_new (HTEventCallback * cbf, void * context,			      HTPriority priority, int millis){    if (cbf) {	HTEvent * me;	if ((me = (HTEvent *) HT_CALLOC(1, sizeof(HTEvent))) == NULL)	    HT_OUTOFMEM("HTEvent_new");	me->cbf = cbf;	me->param = context;	me->priority = priority;	me->millis = millis;	HTTRACE(CORE_TRACE, "Event....... Created event %p with context %p, priority %d, and timeout %d\n" _ 		    me _ context _ priority _ millis);	return me;    }    return NULL;}PUBLIC BOOL HTEvent_delete (HTEvent * me){    if (me) {	HT_FREE(me);	HTTRACE(CORE_TRACE, "Event....... Deleted event %p\n" _ me);	return YES;    }    return NO;}PUBLIC BOOL HTEvent_setParam(HTEvent * event, void * param){    if (!event) return NO;    event->param = param;    return YES;}PUBLIC BOOL HTEvent_setPriority(HTEvent * event, HTPriority priority){    if (!event) return NO;    event->priority = priority;    return YES;}PUBLIC BOOL HTEvent_setTimeout(HTEvent * event, int timeout){    if (event) {	event->millis = timeout;	return YES;    }    return NO;}PUBLIC char * HTEvent_type2str(HTEventType type){    int i;    static char space[20]; /* in case we have to sprintf type */    static struct {int type; char * str;} match[] = {HT_EVENT_INITIALIZER};    for (i = 0; i < sizeof(match)/sizeof(match[0]); i++)	if (match[i].type == type)	    return match[i].str;    sprintf(space, "0x%x", type);    return space;}