/* wdbCtxExitLib.c - notify host of context exit *//* Copyright 1984-1998 Wind River Systems, Inc. *//*modification history--------------------01e,26feb98,dbt  fixed a problem if a context is exited while in system mode.		 return WDB_ERR_INVALID_EVENTPOINT when we can't delete a		 context exit eventpoint (task no longer exists) to enable		 a host tool to remove it in target server eventpoint list.01d,26jan98,dbt  replaced wdbEventClassConnect() with wdbEvtptClassConnect().		 replaced WDB_EVT_CLASS with WDB_EVTPT_CLASS01c,23jan96,tpr  added cast to compile with Diab Data tools.01b,22sep95,ms   allow removal of context exit eventpoints (SPR 4853)01a,09mar95,ms   written.*//*DESCPRIPTION*/#include "wdb/wdb.h"#include "wdb/wdbLibP.h"#include "wdb/wdbSvcLib.h"#include "wdb/wdbEvtLib.h"#include "wdb/wdbEvtptLib.h"#include "wdb/wdbRtIfLib.h"/* data types */typedef struct    {    WDB_EVT_NODE	eventNode;    WDB_CTX		context;    UINT32		returnVal;    UINT32		errnoVal;    } wdbCtxExitNode_t;/* local variables */LOCAL WDB_EVTPT_CLASS	ctxExitClass;LOCAL wdbCtxExitNode_t	externExitNode;/* forward static declarations */static UINT32 ctxExitEvtptAdd    (WDB_EVTPT_ADD_DESC *pEvtPt, UINT32 *pId);static UINT32 ctxExitEvtptDelete (TGT_ADDR_T *pId);/******************************************************************************** wdbCtxExitLibInit - initialize the library.*/void wdbCtxExitLibInit (void)    {    ctxExitClass.evtptType	= WDB_EVT_CTX_EXIT;    ctxExitClass.evtptAdd	= ctxExitEvtptAdd;    ctxExitClass.evtptDel	= ctxExitEvtptDelete;    wdbEvtptClassConnect (&ctxExitClass);    }/******************************************************************************** ctxExitEventGet - fill in the WDB_EVT_DATA for the host.*/ static void ctxExitEventGet    (    void *		pNode,    WDB_EVT_DATA *	pEvtData    )    {    wdbCtxExitNode_t *	pExitNode = pNode;    WDB_CTX_EXIT_INFO *	pCtxExitInfo;    pCtxExitInfo = (WDB_CTX_EXIT_INFO *)&pEvtData->eventInfo;    pEvtData->evtType			= WDB_EVT_CTX_EXIT;    pCtxExitInfo->numInts		= 4;    pCtxExitInfo->context		= pExitNode->context;    pCtxExitInfo->returnVal		= pExitNode->returnVal;    pCtxExitInfo->errnoVal		= pExitNode->errnoVal;    }/******************************************************************************** ctxExitEventDeq - dequeue the event node.*/ static void ctxExitEventDeq    (    void *	pExitNode    )    {    if (wdbIsNowTasking ())	(*pWdbRtIf->free) (pExitNode);    }/******************************************************************************** wdbCtxExitNotifyHook - task-specific exit hook.*/ void wdbCtxExitNotifyHook    (    WDB_CTX	context,		/* exiting context */    UINT32	exitCode,		/* exit code/return value */    UINT32	errnoVal		/* errno value */    )    {    wdbCtxExitNode_t *	pExitNode;    if (wdbIsNowExternal ())	pExitNode = &externExitNode;    else	{	pExitNode = (wdbCtxExitNode_t *)(*pWdbRtIf->malloc)				(sizeof (wdbCtxExitNode_t));	if (pExitNode == NULL)	    return;	}    pExitNode->context	 = context;    pExitNode->returnVal = exitCode;    pExitNode->errnoVal	 = errnoVal;    wdbEventNodeInit (&pExitNode->eventNode, ctxExitEventGet, ctxExitEventDeq,			pExitNode);    wdbEventPost (&pExitNode->eventNode);    }/******************************************************************************** ctxExitEvtptAdd - notify the host when some task exits.*/ static UINT32 ctxExitEvtptAdd    (    WDB_EVTPT_ADD_DESC *pEvtPt,    UINT32 *	pId    )    {    if ((*pWdbRtIf->taskDeleteHookAdd) (pEvtPt->context.contextId,					wdbCtxExitNotifyHook) == ERROR)	return (WDB_ERR_INVALID_CONTEXT);    *pId = pEvtPt->context.contextId;    return (OK);    }/******************************************************************************** ctxExitEvtptDelete -*/ static UINT32 ctxExitEvtptDelete    (    TGT_ADDR_T *pId    )    {    if ((int ) *pId == -1)	/* XXX - should delete all exit event points */	return (OK);    if ((*pWdbRtIf->taskDeleteHookAdd) ((UINT32 ) *pId, NULL) == ERROR)        return (WDB_ERR_INVALID_EVENTPOINT);    return (OK);    }