95 lines
3.9 KiB
C
95 lines
3.9 KiB
C
/*
|
|
* Copyright (c) 2006-2021, RT-Thread Development Team
|
|
*
|
|
* SPDX-License-Identifier: Apache-2.0
|
|
*
|
|
* Change Logs:
|
|
* Date Author Notes
|
|
* 2021-06-04 WillianChan first version
|
|
* 2021-06-08 WillianChan support to MS VC++ compiler
|
|
*/
|
|
|
|
#ifndef _VAR_EXPORT_H__
|
|
#define _VAR_EXPORT_H__
|
|
|
|
#include <rtthread.h>
|
|
|
|
/* exported object */
|
|
struct ve_exporter
|
|
{
|
|
const char *module; /* module name */
|
|
const char *identifier; /* module identifier */
|
|
rt_base_t value; /* module value */
|
|
};
|
|
typedef struct ve_exporter ve_exporter_t;
|
|
|
|
/* module object */
|
|
struct ve_module
|
|
{
|
|
const ve_exporter_t *begin; /* the first module of the same name */
|
|
const ve_exporter_t *end; /* the last module of the same */
|
|
};
|
|
typedef struct ve_module ve_module_t;
|
|
|
|
/* iterator object */
|
|
struct ve_iterator
|
|
{
|
|
const ve_exporter_t *exp_index; /* iterator index */
|
|
const ve_exporter_t *exp_end; /* iterate over exporter */
|
|
};
|
|
typedef struct ve_iterator ve_iterator_t;
|
|
|
|
#define VE_NOT_FOUND (0xFFFFFFFFu) /* not found */
|
|
|
|
/* exporter's export command */
|
|
#if defined(__GNUC__)
|
|
#define VAR_EXPORT(module, identi, value) \
|
|
const char _vexp_##identi##_module[] RT_SECTION(".rodata.vexp") = #module; \
|
|
const char _vexp_##identi##_identi[] RT_SECTION(".rodata.vexp") = #identi; \
|
|
RT_USED const struct ve_exporter _vexp_##module##identi \
|
|
RT_SECTION(#module".VarExpTab."#identi) = \
|
|
{ \
|
|
_vexp_##identi##_module, \
|
|
_vexp_##identi##_identi, \
|
|
value, \
|
|
}
|
|
#elif defined(_MSC_VER)
|
|
#pragma section("VarExpTab$f",read)
|
|
#define VAR_EXPORT(module, identi, value) \
|
|
const char _vexp_##identi##_module[] RT_SECTION(".rodata.vexp") = #module; \
|
|
const char _vexp_##identi##_identi[] RT_SECTION(".rodata.vexp") = #identi; \
|
|
__declspec(allocate("VarExpTab$f")) \
|
|
RT_USED const struct ve_exporter _vexp_##module##identi = \
|
|
{ \
|
|
_vexp_##identi##_module, \
|
|
_vexp_##identi##_identi, \
|
|
value, \
|
|
}
|
|
#else
|
|
#define VAR_EXPORT(module, identi, value) \
|
|
const char _vexp_##identi##_module[] RT_SECTION(".rodata.vexp") = #module; \
|
|
const char _vexp_##identi##_identi[] RT_SECTION(".rodata.vexp") = #identi; \
|
|
RT_USED const struct ve_exporter _vexp_##module##identi \
|
|
RT_SECTION("1."#module".VarExpTab."#identi) = \
|
|
{ \
|
|
_vexp_##identi##_module, \
|
|
_vexp_##identi##_identi, \
|
|
value, \
|
|
}
|
|
#endif
|
|
|
|
/* initialize var export */
|
|
int ve_exporter_init(void);
|
|
/* initialize module */
|
|
int ve_module_init(ve_module_t *mod, const char *module);
|
|
/* initialize iterator */
|
|
void ve_iter_init(ve_module_t *mod, ve_iterator_t *iter);
|
|
/* iterate backward */
|
|
const ve_exporter_t *ve_iter_next(ve_iterator_t *iter);
|
|
/* get the value by identifier */
|
|
rt_base_t ve_value_get(ve_module_t *mod, const char *identifier);
|
|
/* check if this value exists in the module*/
|
|
rt_bool_t ve_value_exist(ve_module_t *mod, const char *identifier);
|
|
|
|
#endif /* _VAR_EXPORT_H__ */
|