1 /* 2 * module.h, dynamic module interface 3 * 4 * Copyright (c) 2009-2010 Wind River Systems, Inc. 5 * 6 * Licensed under the Apache License, Version 2.0 (the "License"); 7 * you may not use this file except in compliance with the License. 8 * You may obtain a copy of the License at 9 * 10 * http://www.apache.org/licenses/LICENSE-2.0 11 * 12 * Unless required by applicable law or agreed to in writing, software 13 * distributed under the License is distributed on an "AS IS" BASIS, 14 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 15 * See the License for the specific language governing permissions and 16 * limitations under the License. 17 */ 18 19 #ifndef __MODULE_H 20 #define __MODULE_H 21 22 #include <dlfcn.h> 23 24 #ifdef __cplusplus 25 extern "C" { 26 #endif 27 28 struct module; 29 30 typedef int (*module_init_t)(struct module *module); 31 typedef void (*module_exit_t)(struct module *module); 32 33 struct module { 34 char *name; 35 36 int ref_count; 37 void *handle; 38 39 module_init_t init; 40 module_exit_t exit; 41 42 void *priv; 43 struct module *next; 44 }; 45 46 #define MODULE_LAZY RTLD_LAZY 47 #define MODULE_NOW RTLD_NOW 48 #define MODUEL_GLOBAL RTLD_GLOBAL 49 50 struct module *module_open(const char *path, int flag); 51 int module_close(struct module *module); 52 void *module_symbol(struct module *module, const char *string); 53 54 #ifdef __cplusplus 55 } /* extern "C" */ 56 #endif 57 58 #endif /* __MODULE_H */ 59
