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/*
*
* Copyright (c) 2018 Huawei Technologies Co.,Ltd.
* 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.
*/
#ifndef _FW_INIT_H
#define _FW_INIT_H
#ifdef __cplusplus
/* *INDENT-OFF* */
extern "C"{
/* *INDENT-ON* */
#endif /* __cplusplus */
#define NSFW_INIT_PRIORITY_ROOT 101
#define NSFW_INIT_PRIORITY_BASE 102
#define NSFW_INIT_PRIORITY_INITFN 103
#define NSFW_INIT_MODULE_PRIORITY_BASE 1
#define NSFW_INIT_MODULE_PRIORITY(x) (NSFW_INIT_MODULE_PRIORITY_BASE + x)
#define NSFW_SET_INSTANCE_VALUE(_attr, _inst, _value) \
nsfw_module_set_instance_##_attr(_inst, _value)
#define NSFW_INIT_CREATE_LOCAL_INSTANCE() \
if (!nsfwLocalInitInst) {\
nsfwLocalInitInst = nsfw_module_create_instance(); \
nsfw_module_add_instance(nsfwLocalInitInst);\
}
#define _NSFW_MODULE_ATTRIBUTE_DEFINE_SURFIX(_attr, _value, _priority, _surfix) \
static __attribute__((__constructor__(_priority))) void nsfw_module_attribute_##_attr##_surfix(void){\
NSFW_INIT_CREATE_LOCAL_INSTANCE(); \
NSFW_SET_INSTANCE_VALUE(_attr, nsfwLocalInitInst, _value);\
} \
#define NSFW_MODULE_ATTRIBUTE_DEFINE_SURFIX(_attr, _value, _priority, _surfix) \
_NSFW_MODULE_ATTRIBUTE_DEFINE_SURFIX(_attr, _value, _priority, _surfix)
#define NSFW_MODULE_ATTRIBUTE_DEFINE_UNIQUE(_attr, _value, _priority) \
NSFW_MODULE_ATTRIBUTE_DEFINE_SURFIX(_attr, _value, _priority, __LINE__)
#define NSFW_MODULE_ATTRIBUTE_DEFINE(_attr, _value, _priority) \
NSFW_MODULE_ATTRIBUTE_DEFINE_UNIQUE(_attr, _value, _priority)
#define NSFW_MODULE_NAME(_name) \
NSFW_MODULE_ATTRIBUTE_DEFINE(name, _name, NSFW_INIT_PRIORITY_BASE)
#define NSFW_MODULE_FATHER(_father) \
NSFW_MODULE_ATTRIBUTE_DEFINE(father, _father, NSFW_INIT_PRIORITY_BASE)
#define NSFW_MODULE_PRIORITY(_priority) \
NSFW_MODULE_ATTRIBUTE_DEFINE(priority, _priority, NSFW_INIT_PRIORITY_BASE)
#define NSFW_MODULE_DEPENDS(_depends) \
NSFW_MODULE_ATTRIBUTE_DEFINE(depends, _depends, NSFW_INIT_PRIORITY_BASE)
#define NSFW_MODULE_INIT(_initfn) \
NSFW_MODULE_ATTRIBUTE_DEFINE(initfn, _initfn, NSFW_INIT_PRIORITY_INITFN)
#define NSFW_MAX_STRING_LENGTH 128
#define NSFW_DEPENDS_SIZE 8
typedef struct _nsfw_module_depends
{
char name[NSFW_MAX_STRING_LENGTH];
int isReady;
struct _nsfw_module_depends *next; /* It is a list, not just only one */
} nsfw_module_depends_t;
typedef enum
{
NSFW_INST_STAT_CHECKING, /* Not check yet */
NSFW_INST_STAT_DEPENDING, /* Blocked, waiting for other module instances */
NSFW_INST_STAT_DONE, /* Check done */
NSFW_INST_STAT_FAIL /* Check Fail */
} nsfw_module_instance_stat_t;
typedef int (*nsfw_module_init_fn) (void *);
typedef struct _nsfw_module_instance
{
nsfw_module_init_fn fnInit;
char name[NSFW_MAX_STRING_LENGTH];
char fatherName[NSFW_MAX_STRING_LENGTH];
int priority;
nsfw_module_depends_t *depends;
nsfw_module_instance_stat_t stat;
void *param;
struct _nsfw_module_instance *next;
struct _nsfw_module_instance *child;
struct _nsfw_module_instance *father;
} nsfw_module_instance_t;
static nsfw_module_instance_t *nsfwLocalInitInst __attribute__ ((unused)) =
(void *) 0;
extern nsfw_module_instance_t *nsfw_module_create_instance ();
extern nsfw_module_instance_t *nsfw_module_getModuleByName (char *);
extern void nsfw_module_add_instance (nsfw_module_instance_t * inst);
extern void nsfw_module_del_instance (nsfw_module_instance_t * inst);
extern void nsfw_module_set_instance_name (nsfw_module_instance_t * inst,
char *name);
extern void nsfw_module_set_instance_father (nsfw_module_instance_t * inst,
char *father);
extern void nsfw_module_set_instance_priority (nsfw_module_instance_t *
inst, int priority);
extern void nsfw_module_set_instance_initfn (nsfw_module_instance_t * inst,
nsfw_module_init_fn fn);
extern void nsfw_module_set_instance_depends (nsfw_module_instance_t * inst,
char *name);
/**
* @Function nstack_framework_init
* @Description This function will do framework initial work, it will invoke all initial functions
* registered using macro NSFW_MODULE_INIT before
* @param none
* @return 0 on success, -1 on error
*/
extern int nstack_framework_init (void);
/**
* @Function nstack_framework_setModuleParam
* @Description This function set parameter of module initial function parameter
* @param module - name of module
* @param param - parameter to set
* @return 0 on success, -1 on error
*/
extern int nstack_framework_setModuleParam (char *module, void *param);
#ifdef __cplusplus
/* *INDENT-OFF* */
}
/* *INDENT-ON* */
#endif /* __cplusplus */
#endif /* _FW_INIT_H */
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