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/*
* UI Gadget
*
* Copyright (c) 2000 - 2011 Samsung Electronics Co., Ltd. All rights reserved.
*
* Contact: Jayoun Lee <airjany@samsung.com>
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
#include <linux/limits.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <errno.h>
#include <dlfcn.h>
#include <unistd.h>
#include <sys/types.h>
#include "ug-engine.h"
#include "ug-dbg.h"
#define UG_ENGINE_INIT_SYM "UG_ENGINE_INIT"
#define UG_ENGINE_EXIT_SYM "UG_ENGINE_EXIT"
enum ug_engine_type {
UG_ENGINE_EFL = 0x00,
};
struct ug_engine *ug_engine_load()
{
void *handle;
struct ug_engine *engine;
int (*engine_init)(struct ug_engine_ops *ops);
engine = calloc(1, sizeof(struct ug_engine));
if (!engine) {
errno = ENOMEM;
return NULL;
}
handle = dlopen("libui-gadget-1-efl-engine.so", RTLD_LAZY);
if (!handle) {
_ERR("dlopen failed: %s", dlerror());
goto engine_free;
}
engine_init = dlsym(handle, UG_ENGINE_INIT_SYM);
if (!engine_init) {
_ERR("dlsym failed: %s", dlerror());
goto engine_dlclose;
}
if (engine_init(&engine->ops))
goto engine_dlclose;
engine->handle = handle;
return engine;
engine_dlclose:
dlclose(handle);
engine_free:
free(engine);
return NULL;
}
int ug_engine_unload(struct ug_engine *engine)
{
void (*engine_exit)(struct ug_engine_ops *ops);
if (!engine) {
errno = EINVAL;
return -1;
}
if (engine->handle) {
engine_exit = dlsym(engine->handle, UG_ENGINE_EXIT_SYM);
if (engine_exit)
engine_exit(&engine->ops);
else
_ERR("dlsym failed: %s", dlerror());
dlclose(engine->handle);
}
free(engine);
engine = NULL;
return 0;
}
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