Function rt_module_open

bsp/simulator/drivers/module_win32.c:243–348

* This function will load a module from a file * * @param path the full path of application module * * @return the module object */

 * @return the module object
 */
rt_module_t rt_module_open(const char *path)
{
    struct dfs_filesystem *fs;
    appentry_t fptr;
    HINSTANCE hinstlib;
    rt_module_t module;

    char * winpath = RT_NULL;
    char * name = RT_NULL;

    RT_DEBUG_NOT_IN_INTERRUPT;

    /* check parameters */
    RT_ASSERT(path != RT_NULL);

    /* app module should only in DFS_WIN32 */
    fs = dfs_filesystem_lookup(path);
    if ((fs == RT_NULL) || (strcmp(fs->ops->name,"wdir") != 0))
    {
        rt_kprintf("invalid path: %s\n", path);
        return RT_NULL;
    }

    /* change path */
    // len = strlen(path+1);
    if ((winpath = dfs_win32_dirdup((char *)path)) == RT_NULL)
    {
        rt_kprintf("out of memory, exit");
        return RT_NULL;
    }

    hinstlib = LoadLibrary(winpath);
    if (hinstlib == NULL)
    {
        rt_kprintf("error: unable to open %s\n", winpath);
        return RT_NULL;
    }

    fptr = (appentry_t)GetProcAddress(hinstlib, "main");
    if (fptr == NULL)
    {
        rt_kprintf("error: unable to find function in %s\n", winpath);
        FreeLibrary(hinstlib);
        return RT_NULL;
    }

    /* get the name of the module */
    name = _module_name(path);

    /* allocate module */
    module = (struct rt_module *)rt_object_allocate(RT_Object_Class_Module, name);
    if (!module) return RT_NULL;

    module->nref = 0;
    module->module_entry = fptr;

    /* init module object container */
    rt_module_init_object_container(module);