object.cpp

audio-video-codecs.rar语音编解码器

//
//               INTEL CORPORATION PROPRIETARY INFORMATION
//  This software is supplied under the terms of a license agreement or
//  nondisclosure agreement with Intel Corporation and may not be copied
//  or disclosed except in accordance with the terms of that agreement.
//        Copyright (c) 2005-2006 Intel Corporation. All Rights Reserved.
//

#include "object.h"

//OBJECT_TYPE_IMPL(Object);
/*
template <class T>
bool ObjectTypeCheck(T* p_object)
{
    return !vm_string_strcmp(T::GetStaticObjectType(),p_object->GetObjectType());
}
*/
bool ObjectTypeCheck(Object* p_object)
{
    return true;
}

Object::~Object()
{
}

typedef ObjectsList* (*FN_EXPORT_OBJECTS_LIST)(void);

static vm_char* g_pfuncname = VM_STRING("ExportObjectsList");

ObjectsList*
ObjectsList::Load(vm_char* p_filename, vm_char* p_funcname)
{
    FN_EXPORT_OBJECTS_LIST   fnExportObjectsList;
    ObjectsList*          p_objects_list;
    vm_so_handle          handle;
    if (p_filename == NULL) return NULL;

    if(p_funcname == NULL)
    {
        p_funcname = g_pfuncname;
    }

    handle = vm_so_load(p_filename);
    if (handle == NULL)
    {
        return NULL;
    }

    fnExportObjectsList = (FN_EXPORT_OBJECTS_LIST)vm_so_get_addr(handle,p_funcname);

    if (fnExportObjectsList == NULL)
    {
        vm_so_free(handle);
        return NULL;
    }
    p_objects_list = fnExportObjectsList();

    if (p_objects_list == NULL)
    {
        vm_so_free(handle);
        return NULL;
    }
    p_objects_list->handle = handle;
    p_objects_list->p_next = NULL;
    return p_objects_list;
}


ObjectsList g_static_objects_list = {NULL};

bool
ObjectReg(Object* p_object)
{
    Object* p_counter;
    if (g_static_objects_list.p_begin == NULL)
    {
        g_static_objects_list.p_begin = p_object;
        return true;
    }
    p_counter = g_static_objects_list.p_begin;

    while (p_counter->m_pnext != NULL)
    {
        p_counter = p_counter->m_pnext;
    }
    p_counter->m_pnext = p_object;
    p_object->m_pnext = NULL;

    return true;
}

#if defined WIN32

ObjectsList * WINAPI
ExportObjectsList(void)
{
    return &g_static_objects_list;
}

#else

extern "C" ObjectsList*
ExportObjectsList(void)
{
    return &g_static_objects_list;
}

#endif