//%2006////////////////////////////////////////////////////////////////////////
//
// Copyright (c) 2000, 2001, 2002 BMC Software; Hewlett-Packard Development
// Company, L.P.; IBM Corp.; The Open Group; Tivoli Systems.
// Copyright (c) 2003 BMC Software; Hewlett-Packard Development Company, L.P.;
// IBM Corp.; EMC Corporation, The Open Group.
// Copyright (c) 2004 BMC Software; Hewlett-Packard Development Company, L.P.;
// IBM Corp.; EMC Corporation; VERITAS Software Corporation; The Open Group.
// Copyright (c) 2005 Hewlett-Packard Development Company, L.P.; IBM Corp.;
// EMC Corporation; VERITAS Software Corporation; The Open Group.
// Copyright (c) 2006 Hewlett-Packard Development Company, L.P.; IBM Corp.;
// EMC Corporation; Symantec Corporation; The Open Group.
//
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// LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
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//==============================================================================
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//%/////////////////////////////////////////////////////////////////////////////


/*
    This file contains all necessary methods to keep track of the indication
    objects created in a particular context.
*/


#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <errno.h>
#if defined(PEGASUS_PLATFORM_LINUX_GENERIC_GNU)
# include <error.h>
#endif


#include "indication_objects.h"
#include "debug.h"

#include <Pegasus/Provider/CMPI/cmpidt.h>
#include <Pegasus/Provider/CMPI/cmpimacs.h>
#include <Pegasus/Provider/CMPI/cmpift.h>

extern CMPIBrokerExtFT *CMPI_BrokerExt_Ftab;

static indication_objects *__indication_objects = NULL;

static CMPI_MUTEX_TYPE _indication_objects_lock = NULL;

#define INIT_LOCK(l) if (l==NULL) l=CMPI_BrokerExt_Ftab->newMutex(0);


// Helper function
void __free_ind_object (ind_object *obj)
{
    switch (obj->type)
    {
        case PEGASUS_INDICATION_OBJECT_TYPE_CMPI_SELECT_EXP :
            CMRelease ( (CMPISelectExp*)obj->id);
            break;
        case PEGASUS_INDICATION_OBJECT_TYPE_CMPI_SELECT_COND:
            CMRelease ( (CMPISelectCond*)obj->id);
            break;
        case PEGASUS_INDICATION_OBJECT_TYPE_CMPI_SUB_COND:
            CMRelease ( (CMPISubCond*)obj->id);
            break;
        case PEGASUS_INDICATION_OBJECT_TYPE_CMPI_PREDICATE:
            CMRelease ( (CMPIPredicate*)obj->id);
            break;
        default :
            TRACE_CRITICAL(("Unknown Object type: %d", obj->type ));
    }
}

/*
    This function creates reference to the Object created in MB.
    This reference is passed to Remote Daemon, any changes or any
    calls made on this object on daemon side, will make UP calls
    to MB and uses this object.
*/
CMPIUint32 create_indicationObject (
    void *obj, 
    CMPIUint32 ctx_id, 
    CMPIUint8 type)
{
    indication_objects *tmp;
    ind_object *ind_obj;

    TRACE_NORMAL(("Creating Indication Object."));

    INIT_LOCK(_indication_objects_lock);
    CMPI_BrokerExt_Ftab->lockMutex(_indication_objects_lock);

    tmp = __indication_objects;
    while (tmp)
    {
        if (tmp->ctx_id == ctx_id)
        {
            break;
        }
        tmp = tmp->next;
    }
    if (!tmp)
    {
        tmp = (indication_objects *)
        malloc ( sizeof ( indication_objects ) );
        tmp->ctx_id = ctx_id;
        tmp->next = __indication_objects;
        __indication_objects = tmp;
        tmp->objects = NULL;
    }
    ind_obj = (ind_object*) malloc ( sizeof ( ind_object ) );
    ind_obj->id = (CMPIUint32) obj;
    ind_obj->type = type;
    ind_obj->next = tmp->objects;
    tmp->objects = ind_obj;

    CMPI_BrokerExt_Ftab->unlockMutex(_indication_objects_lock);

    TRACE_INFO(("Created object with id: %u", ind_obj->id ));

    return ind_obj->id;
}

int remove_indicationObject (void *obj, CMPIUint32 ctx_id)
{
    ind_object **tmp;
    indication_objects *curr;
    CMPIUint32 id = ( (ind_object*)obj)->id;

    TRACE_NORMAL(("Deleting Indication Object."));

    INIT_LOCK(_indication_objects_lock);
    CMPI_BrokerExt_Ftab->lockMutex(_indication_objects_lock);
    curr = __indication_objects;
    while (curr)
    {
        if (curr->ctx_id == ctx_id)
        {
            break;
        }
        curr = curr->next;
    }
    for (tmp = &curr->objects; *tmp != NULL; *tmp = (*tmp)->next)
    {
        if ((*tmp)->id == id)
        {
            ind_object *r = (*tmp);
            (*tmp) = r->next;
            __free_ind_object (r);
            TRACE_INFO(("Deleted Indication Object with ID: %u", id));
            CMPI_BrokerExt_Ftab->unlockMutex(_indication_objects_lock);
            return 0;
        }
    }
    CMPI_BrokerExt_Ftab->unlockMutex(_indication_objects_lock);
    return -1;
}

void* get_indicationObject (CMPIUint32 id, CMPIUint32 ctx_id)
{
    indication_objects *curr;
    ind_object *tmp;
    int global_context = 0;

    TRACE_NORMAL(("Getting the  Indication Object."));

    INIT_LOCK(_indication_objects_lock);
    CMPI_BrokerExt_Ftab->lockMutex(_indication_objects_lock);

    do
    {
        curr = __indication_objects;
        while (curr)
        {
            if (curr->ctx_id == ctx_id)
            {
                break;
            }
            curr = curr->next;
        }
        if (!curr && !global_context)
        {
            global_context = 1;
            ctx_id = PEGASUS_INDICATION_GLOBAL_CONTEXT;
        }
        else
        {
            break;
        }
    }while (global_context);

    for (tmp = curr ? curr->objects : NULL; tmp != NULL; tmp = tmp->next)
    {
        if (tmp->id == id)
        {
            TRACE_INFO(("Got the Indication Object with ID: %u", id));
            CMPI_BrokerExt_Ftab->unlockMutex(_indication_objects_lock);
            return(void*)tmp->id;
        }
    }
    CMPI_BrokerExt_Ftab->unlockMutex(_indication_objects_lock);

    return NULL;

}

void cleanup_indicationObjects (CMPIUint32 ctx_id)
{
    indication_objects *tmp, *prev;
    ind_object *obj;

    TRACE_NORMAL(("Cleaning all Indication Objects."));

    INIT_LOCK(_indication_objects_lock);
    CMPI_BrokerExt_Ftab->lockMutex(_indication_objects_lock);
    tmp = __indication_objects;
    while (tmp)
    {
        if (tmp->ctx_id == ctx_id)
        {
            break;
        }
        prev = tmp;
        tmp = tmp->next;
    }
    if (!tmp)
    {
        TRACE_CRITICAL(("Indication context id (%u) not found.", ctx_id));
        return;
    }
    while (tmp->objects)
    {
        obj = tmp->objects;
        tmp->objects = tmp->objects->next;
        __free_ind_object (obj);
    }
    if (tmp == __indication_objects)
    {
        __indication_objects = __indication_objects->next;
    }
    else
    {
        prev->next = tmp->next;
    }
    free (tmp);
    CMPI_BrokerExt_Ftab->unlockMutex(_indication_objects_lock);
}