/*

 * Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies).

 * All rights reserved.

 * This component and the accompanying materials are made available

 * under the terms of "Eclipse Public License v1.0"

 * which accompanies this distribution, and is available

 * at the URL "http://www.eclipse.org/legal/epl-v10.html".

 *

 * Initial Contributors:

 * Nokia Corporation - initial contribution.

 *

 * Contributors:

 *

 * Description: Object Interface Implementation

 *

 */

#include <stdio.h>

#include <stdlib.h>

#include <assert.h>

#include "xaobjectitf.h"

/**

 * Base interface XAObjectItf implementation

 */

XAresult XAObjectItfImpl_Realize(XAObjectItf self, XAboolean async)

    {

    XAObjectItfImpl* pObjImp = (XAObjectItfImpl*) (*self);

    XAresult retval = XA_RESULT_SUCCESS;

    DEBUG_API("->XAObjectItfImpl_Realize");

    if (!pObjImp || pObjImp != pObjImp->self)

        {

        DEBUG_ERR("XA_RESULT_PARAMETER_INVALID");

        DEBUG_API("<-XAObjectItfImpl_Realize");

        /* invalid parameter */

        return XA_RESULT_PARAMETER_INVALID;

        }

    if (async)

        {

        /* invoke asynchronously */

        if (!pObjImp->callBack)

            {

            retval = XA_RESULT_PARAMETER_INVALID;

            }

        else

            {

            /* check if another async operation is processed */

            if (pObjImp->asyncOngoing)

                {

                /* abort ongoing operation */

                XAImpl_CancelThread(pObjImp->asyncThr);

                }

            pObjImp->asyncOngoing = XA_BOOLEAN_TRUE;

            if (XAImpl_StartThread(pObjImp->asyncThr, NULL,

                    XAObjectItfImpl_AsyncRealize, (void*) (self)))

                {

                pObjImp->asyncOngoing = XA_BOOLEAN_FALSE;

                retval = XA_RESULT_RESOURCE_ERROR;

                }

            else

                {

                retval = XA_RESULT_SUCCESS;

                }

            }

        }

    else

        {

        /* Check if the object is in unrealized state */

        if (pObjImp->state != XA_OBJECT_STATE_UNREALIZED)

            {

            DEBUG_ERR("XA_RESULT_PRECONDITIONS_VIOLATED");

            DEBUG_API("<-XAObjectItfImpl_Realize");

            return XA_RESULT_PRECONDITIONS_VIOLATED;

            }

        /* invoke synchronously */

        if (pObjImp->DoRealizeImpl)

            {

            retval = pObjImp->DoRealizeImpl(self);

            }

    return retval;

    }

XAresult XAObjectItfImpl_Resume(XAObjectItf self, XAboolean async)

    {

    XAresult retval = XA_RESULT_SUCCESS;

    XAObjectItfImpl* pObjImp = (XAObjectItfImpl*) (*self);

    DEBUG_API("->XAObjectItfImpl_Resume");

    if (!pObjImp || pObjImp != pObjImp->self)

        {

        DEBUG_ERR("XA_RESULT_PARAMETER_INVALID");

        DEBUG_API("<-XAObjectItfImpl_Resume");

        /* invalid parameter */

        return XA_RESULT_PARAMETER_INVALID;

        }

    if (async)

        {

        /* invoke asynchronously */

        if (!pObjImp->callBack)

            {

            retval = XA_RESULT_PARAMETER_INVALID;

            }

        else

            {

            /* check if another async operation is processed */

            if (pObjImp->asyncOngoing)

                {

                /* abort ongoing operation */

                XAImpl_CancelThread(pObjImp->asyncThr);

                }

            pObjImp->asyncOngoing = XA_BOOLEAN_TRUE;

            if (XAImpl_StartThread(pObjImp->asyncThr, NULL,

                    XAObjectItfImpl_AsyncResume, (void*) (self)))

                {

                pObjImp->asyncOngoing = XA_BOOLEAN_FALSE;

                retval = XA_RESULT_RESOURCE_ERROR;

                }

            else

                {

                retval = XA_RESULT_SUCCESS;

                }

            }

        }

    else

        {

        /* invoke synchronously */

        if (pObjImp->DoResumeImpl)

            {

            retval = pObjImp->DoResumeImpl(self);

            }

    return retval;

    }

XAresult XAObjectItfImpl_GetState(XAObjectItf self, XAuint32 *pState)

    {

    XAObjectItfImpl* pObjImp = (XAObjectItfImpl*) (*self);

    DEBUG_API("->XAObjectItfImpl_GetState");

    if (!pObjImp || pObjImp != pObjImp->self || !pState)

        {

        DEBUG_ERR("XA_RESULT_PARAMETER_INVALID");

        DEBUG_API("<-XAObjectItfImpl_GetState");

        /* invalid parameter */

        return XA_RESULT_PARAMETER_INVALID;

        }

    *pState = pObjImp->state;

    DEBUG_API("<-XAObjectItfImpl_GetState");

    return XA_RESULT_SUCCESS;

    }

XAresult XAObjectItfImpl_GetInterface(XAObjectItf self,

        const XAInterfaceID iid, void *pInterface)

    {

    XAObjectItfImpl* pObjImp = (XAObjectItfImpl*) (*self);

    XAObjItfMapEntry *mapEntry = NULL;

    DEBUG_API("->XAObjectItfImpl_GetInterface");

    if (!pObjImp || pObjImp != pObjImp->self || !pInterface || !iid)

        {

        DEBUG_ERR("XA_RESULT_PARAMETER_INVALID");

        DEBUG_API("<-XAObjectItfImpl_GetInterface");

        /* invalid parameter */

        return XA_RESULT_PARAMETER_INVALID;

        }

    if (pObjImp->state != XA_OBJECT_STATE_REALIZED)

        {

        DEBUG_ERR("XA_RESULT_PRECONDITIONS_VIOLATED");

        DEBUG_API("<-XAObjectItfImpl_GetInterface");

        /*state is not correct */

        return XA_RESULT_PRECONDITIONS_VIOLATED;

        }

    mapEntry = XAObjectItfImpl_GetItfEntry(self, iid);

    if (mapEntry && mapEntry->pItf)

        {

        *(void**) pInterface = &(mapEntry->pItf);

        DEBUG_API("<-XAObjectItfImpl_GetInterface");

        return XA_RESULT_SUCCESS;

        }

    else

        {

        DEBUG_ERR("XA_RESULT_FEATURE_UNSUPPORTED");

        DEBUG_API("<-XAObjectItfImpl_GetInterface");

        return XA_RESULT_FEATURE_UNSUPPORTED;

        }

    }

XAresult XAObjectItfImpl_RegisterCallback(XAObjectItf self,

        xaObjectCallback callback, void *pContext)

    {

    XAObjectItfImpl* pObjImp = (XAObjectItfImpl*) (*self);

    DEBUG_API("->XAObjectItfImpl_RegisterCallback");

    if (!pObjImp || pObjImp != pObjImp->self)

        {

        DEBUG_ERR("XA_RESULT_PARAMETER_INVALID");

        DEBUG_API("<-XAObjectItfImpl_RegisterCallback");

        /* invalid parameter */

        return XA_RESULT_PARAMETER_INVALID;

        }

    pObjImp->callBack = callback;

    pObjImp->context = pContext;

    pObjImp->cbPtrToSelf = self;

    DEBUG_API("<-XAObjectItfImpl_RegisterCallback");

    return XA_RESULT_SUCCESS;

    }

void XAObjectItfImpl_AbortAsyncOperation(XAObjectItf self)

    {

    XAObjectItfImpl* pObjImp = (XAObjectItfImpl*) (*self);

    DEBUG_API("->XAObjectItfImpl_AbortAsyncOperation");

    if (pObjImp && (pObjImp == pObjImp->self) && pObjImp->callBack

            && pObjImp->asyncOngoing)

        {

        /* abort ongoing operation */

        XAImpl_CancelThread(pObjImp->asyncThr);

        }

    DEBUG_API("<-XAObjectItfImpl_AbortAsyncOperation");

    }

void XAObjectItfImpl_Destroy(XAObjectItf self)

    {

    XAObjectItfImpl* pObjImp = (XAObjectItfImpl*) (*self);

    DEBUG_API("->XAObjectItfImpl_Destroy");

    if (pObjImp && pObjImp == pObjImp->self)

        {

        if (pObjImp->asyncOngoing)

            {

            /* abort ongoing operation */

            XAImpl_CancelThread(pObjImp->asyncThr);

            }

        /* free object specific resources */

        if (pObjImp->FreeResourcesImpl)

            {

            pObjImp->FreeResourcesImpl(self);

            }

        free(pObjImp->interfaceMap);

        XAImpl_DeleteThreadHandle(pObjImp->asyncThr);

        free(pObjImp);

        }

    DEBUG_API("<-XAObjectItfImpl_Destroy");

    }

XAresult XAObjectItfImpl_SetPriority(XAObjectItf self, XAint32 priority,

        XAboolean preemptable)

    {

    XAObjectItfImpl* pObjImp = (XAObjectItfImpl*) (*self);

    DEBUG_API("->XAObjectItfImpl_SetPriority");

    if (!pObjImp || pObjImp != pObjImp->self)

        {

        DEBUG_ERR("XA_RESULT_PARAMETER_INVALID");

        DEBUG_API("<-XAObjectItfImpl_SetPriority");

        /* invalid parameter */

        return XA_RESULT_PARAMETER_INVALID;

        }

    pObjImp->priority = priority;

    pObjImp->preemptable = preemptable;

    DEBUG_API("<-XAObjectItfImpl_SetPriority");

    return XA_RESULT_SUCCESS;

    }

XAresult XAObjectItfImpl_GetPriority(XAObjectItf self, XAint32 *pPriority,

        XAboolean *pPreemptable)

    {

    XAObjectItfImpl* pObjImp = (XAObjectItfImpl*) (*self);

    DEBUG_API("->XAObjectItfImpl_GetPriority");

    if (!pObjImp || pObjImp != pObjImp->self)

        {

        DEBUG_ERR("XA_RESULT_PARAMETER_INVALID");

        DEBUG_API("<-XAObjectItfImpl_GetPriority");

        /* invalid parameter */

        return XA_RESULT_PARAMETER_INVALID;

        }

    *pPriority = pObjImp->priority;

    *pPreemptable = pObjImp->preemptable;

    DEBUG_API("<-XAObjectItfImpl_GetPriority");

    return XA_RESULT_SUCCESS;

    }

XAresult XAObjectItfImpl_SetLossOfControlInterfaces(XAObjectItf self,

        XAint16 numInterfaces, XAInterfaceID *pInterfaceIDs,

        XAboolean enabled)

    {

    XAObjectItfImpl* pObjImp = (XAObjectItfImpl*) (*self);

    XAint32 itfIndex = 0;

    XAObjItfMapEntry *mapEntry = NULL;

    DEBUG_API("->XAObjectItfImpl_SetLossOfControlInterfaces");

    if (!pObjImp || pObjImp != pObjImp->self || !pInterfaceIDs)

        {

        DEBUG_ERR("XA_RESULT_PARAMETER_INVALID");

        DEBUG_API("<-XAObjectItfImpl_SetLossOfControlInterfaces");

        /* invalid parameter */

        return XA_RESULT_PARAMETER_INVALID;

        }

    if (pInterfaceIDs)

        {

        for (itfIndex = 0; itfIndex < numInterfaces; itfIndex++)

            {

            mapEntry = XAObjectItfImpl_GetItfEntry(self,

                    pInterfaceIDs[itfIndex]);

            if (mapEntry)

                {

                mapEntry->locEnabled = enabled;

                }

            }

        }

    DEBUG_API("<-XAObjectItfImpl_SetLossOfControlInterfaces");

    return XA_RESULT_SUCCESS;

    }

/**

 * XAObjectItfImpl -specific methods

 **/

/*

 * Allocate and init new object itf instance

 */

XAresult XAObjectItfImpl_Init(XAObjectItfImpl* self, XAuint32 itfCount,

        const XAInterfaceID** itfIIDs, xaDoRealizeImpl doRealizeImpl,

        xaDoResumeImpl doResumeImpl, xaFreeResourcesImpl freeResourcesImpl)

    {

    XAuint32 i = 0;

    DEBUG_API("->XAObjectItfImpl_Init");

    assert( self && itfIIDs && doRealizeImpl && doResumeImpl && freeResourcesImpl );

    self->interfaceMap = (XAObjItfMapEntry*) calloc(itfCount,

            sizeof(XAObjItfMapEntry));

    if (!self->interfaceMap)

        {

        free(self);

        DEBUG_ERR("XA_RESULT_MEMORY_FAILURE");

        DEBUG_API("<-XAObjectItfImpl_Init");

        return XA_RESULT_MEMORY_FAILURE;

        }

    if (XAImpl_CreateThreadHandle(&(self->asyncThr)) != XA_RESULT_SUCCESS)

        {

        free(self);

        DEBUG_ERR("XA_RESULT_MEMORY_FAILURE");

        DEBUG_API("<-XAObjectItfImpl_Init");

        return XA_RESULT_MEMORY_FAILURE;

        }

    for (i = 0; i < itfCount; i++)

        {

        self->interfaceMap[i].mapIdx = i;

        self->interfaceMap[i].iid = *(itfIIDs[i]);

        self->interfaceMap[i].pItf = NULL;

        self->interfaceMap[i].locEnabled = XA_BOOLEAN_FALSE;

        self->interfaceMap[i].required = XA_BOOLEAN_FALSE;

        self->interfaceMap[i].isDynamic = XA_BOOLEAN_FALSE;

        }

    self->interfaceMap[0].pItf = self;

    self->interfaceMap[0].required = XA_BOOLEAN_TRUE;

    self->interfaceCount = itfCount;

    self->priority = XA_PRIORITY_NORMAL;

    self->preemptable = XA_BOOLEAN_FALSE;

    self->state = XA_OBJECT_STATE_UNREALIZED;

    self->callBack = NULL;

    self->context = NULL;

    self->asyncOngoing = XA_BOOLEAN_FALSE;

    self->cbPtrToSelf = NULL;

    self->DoRealizeImpl = doRealizeImpl;

    self->DoResumeImpl = doResumeImpl;

    self->FreeResourcesImpl = freeResourcesImpl;

    /* init itf default implementation */

    self->itf.Realize = XAObjectItfImpl_Realize;

    self->itf.Resume = XAObjectItfImpl_Resume;

    self->itf.GetState = XAObjectItfImpl_GetState;

    self->itf.GetInterface = XAObjectItfImpl_GetInterface;

    self->itf.RegisterCallback = XAObjectItfImpl_RegisterCallback;

    self->itf.AbortAsyncOperation = XAObjectItfImpl_AbortAsyncOperation;

    self->itf.Destroy = XAObjectItfImpl_Destroy;

    self->itf.SetPriority = XAObjectItfImpl_SetPriority;

    self->itf.GetPriority = XAObjectItfImpl_GetPriority;

    self->itf.SetLossOfControlInterfaces

            = XAObjectItfImpl_SetLossOfControlInterfaces;

    self->self = self;

    DEBUG_API("<-XAObjectItfImpl_Init");

    return XA_RESULT_SUCCESS;

    }

/*

 * Asynchronous invocation of Realize

 */

void* XAObjectItfImpl_AsyncRealize(void* args)

    {

    XAresult retval = XA_RESULT_SUCCESS;

    XAObjectItfImpl* pObjImp = (XAObjectItfImpl*) (*(XAObjectItf) (args));

    DEBUG_API("->XAObjectItfImpl_AsyncRealize");

    if (pObjImp && pObjImp == pObjImp->self)

        {

        /* Check if the object is in unrealized state */

        if (pObjImp->state != XA_OBJECT_STATE_UNREALIZED)

            {

            retval = XA_RESULT_PRECONDITIONS_VIOLATED;

            }

        else if (pObjImp->DoRealizeImpl)

            {

            retval = pObjImp->DoRealizeImpl((XAObjectItf) (args));

            }

        if (pObjImp->callBack)

            {

            pObjImp->callBack(pObjImp->cbPtrToSelf, pObjImp->context,

                    XA_OBJECT_EVENT_ASYNC_TERMINATION, retval,

                    pObjImp->state, NULL);

            }

        pObjImp->asyncOngoing = XA_BOOLEAN_FALSE;

        XAImpl_ExitThread(pObjImp->asyncThr);

        }

    else

        {

        DEBUG_API("XAObjectItfImpl_AsyncRealize: INVALID args");

        }

    DEBUG_API("<-XAObjectItfImpl_AsyncRealize");

    return NULL;

    }

/*

 * Asynchronous invocation of Resume

 */

void* XAObjectItfImpl_AsyncResume(void* args)

    {

    XAresult retval = XA_RESULT_SUCCESS;

    XAObjectItfImpl* pObjImp = (XAObjectItfImpl*) (*(XAObjectItf) (args));

    DEBUG_API("->XAObjectItfImpl_AsyncResume");

    if (pObjImp && pObjImp == pObjImp->self)

        {

        if (pObjImp->DoResumeImpl)

            {

            retval = pObjImp->DoResumeImpl((XAObjectItf) (args));

            }

        if (pObjImp->callBack)

            {

            pObjImp->callBack(pObjImp->cbPtrToSelf, pObjImp->context,

                    XA_OBJECT_EVENT_ASYNC_TERMINATION, retval,

                    pObjImp->state, NULL);

            }

        pObjImp->asyncOngoing = XA_BOOLEAN_FALSE;

        XAImpl_ExitThread(pObjImp->asyncThr);

        }

    else

        {

        DEBUG_API("XAObjectItfImpl_AsyncResume: INVALID args");

        }

    DEBUG_API("<-XAObjectItfImpl_AsyncResume");

    return NULL;

    }

XAObjItfMapEntry* XAObjectItfImpl_GetItfEntry(const XAObjectItf self,

        const XAInterfaceID iid)

    {

    XAuint32 mapIndex = 0;

    XAObjectItfImpl* pObjImp = (XAObjectItfImpl*) (*self);

    DEBUG_API("->XAObjectItfImpl_GetItfEntry");

    if (pObjImp && (pObjImp == pObjImp->self) && pObjImp->interfaceMap && iid)

        {

        /* Check interface */

        for (mapIndex = 0; mapIndex < pObjImp->interfaceCount; mapIndex++)

            {

            if (XACommon_EqualIIds(pObjImp->interfaceMap[mapIndex].iid, iid))

                {

                DEBUG_API("<-XAObjectItfImpl_GetItfEntry");

                return &(pObjImp->interfaceMap[mapIndex]);

                }

            }

        }

    DEBUG_API("<-XAObjectItfImpl_GetItfEntry");

    return NULL;

    }