jam_resource.c

java 1.1 gemini 08_16

/*****************************************************************************
*  Copyright Statement:
*  --------------------
*  This software is protected by Copyright and the information contained
*  herein is confidential. The software may not be copied and the information
*  contained herein may not be used or disclosed except with the written
*  permission of MediaTek Inc. (C) 2001
*
*****************************************************************************/

/*****************************************************************************
 *
 * Filename:
 * ---------
 *   jam_resource.c
 *
 * Project:
 * --------
 *   Maui_Software
 *
 * Description:
 * ------------
 *   Use APIs in this file to manage the reource opened by Java.
 *
 * Author:
 * -------
 * -------
 *
 *============================================================================
 *             HISTORY
 * Below this line, this part is controlled by PVCS VM. DO NOT MODIFY!!
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 *============================================================================
 ****************************************************************************/
#include <global.h>
#include "jam_internal.h"
#include "j2me_custom_option.h"
#include "jma_internal.h"

#ifndef __MTK_TARGET__
#define MYASSERT(x) if(!x) ((int*)0)[0] = 0;
#else 
#define MYASSERT ASSERT
#endif 

resource_mgr_array_struct *resource_array;
static resource_mgr_struct *findOutEmptyEntry(void);
static kal_bool isResourceRegistered(int device_type, int handle);


/*
 * flag to mark audio device force switched and resumed in MMI context.
 * * VM should check these flags to decide execute device's pause/resume 
 * * handler or not.
 */
static kal_bool j2me_resource_suspended = KAL_FALSE;


/*****************************************************************************
 * FUNCTION
 *  initializeResoueceMgr
 * DESCRIPTION
 *  
 * PARAMETERS
 *  void
 * RETURNS
 *  
 *****************************************************************************/
int initializeResoueceMgr(void)
{
    /*----------------------------------------------------------------*/
    /* Local Variables                                                */
    /*----------------------------------------------------------------*/
    int i;

    /*----------------------------------------------------------------*/
    /* Code Body                                                      */
    /*----------------------------------------------------------------*/
    j2me_resource_suspended = KAL_FALSE;
    resource_array = (resource_mgr_array_struct*) jvm_malloc(sizeof(resource_mgr_array_struct));
    if (resource_array == NULL)
    {
        return RESOUCE_FAIL;
    }
    Kmemset(resource_array, 0, sizeof(resource_mgr_array_struct));

    RES_CS_ENTER();
    for (i = 0; i < RESOUCE_ARRAY_SIZE; i++)
    {
        resource_array->resouce[i].device_type = JAVA_INVALID_DEVICE;
    }
    resource_array->next = NULL;
    resource_array->next_free_index = 0;
    RES_CS_LEAVE();

    return RESOUCE_NO_ERROR;
}


/*****************************************************************************
 * FUNCTION
 *  finalizeResoueceMgr
 * DESCRIPTION
 *  
 * PARAMETERS
 *  void
 * RETURNS
 *  void
 *****************************************************************************/
void finalizeResoueceMgr(void)
{
    /*----------------------------------------------------------------*/
    /* Local Variables                                                */
    /*----------------------------------------------------------------*/
    resource_mgr_array_struct *temp_array = resource_array;