45 lines
1.3 KiB
C
45 lines
1.3 KiB
C
#ifndef __COMMAND_H_
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#define __COMMAND_H_
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#ifdef __cplusplus
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extern "C" {
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#endif
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#define SECTION(x) __attribute__((section(x)))
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#define UNUSED __attribute__((unused))
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#define USED __attribute__((used))
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#define ALIGN(n) __attribute__((aligned(n)))
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#define WEAK __attribute__((weak))
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//##后的参数本身也是一个宏的话，##会阻止这个宏的展开，也就是只替换一次，故需要中继
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#define __command_func_line_connect_(func, line) func##line
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#define __command_func_line_define_(func, line) __command_func_line_connect_(func, line)
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#define __command_func_line_(func, line) __command_func_line_define_(func, line)
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extern void * __start_command;
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extern void * __stop_command;
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#define CMD_LENGTH(x) (sizeof(x)/sizeof(x[0]))
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//声明command_func为函数指针
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typedef void (*command_func)(int argc, char *argv[]);
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//定义命令结构体
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typedef struct cmd
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{
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char *cmd_name; //命令名称
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command_func cmd_func;//命令处理函数
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}command_t;
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#define __command_initialize(cmd, func) USED SECTION("command") ALIGN(sizeof(void*)) \
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command_t __command_func_line_(func, __LINE__) = {cmd, func}
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//分析、分配命令
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extern int execute_command(char *command, command_t *list, int list_size);
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#ifdef __cplusplus
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}
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#endif
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#endif
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