373 lines
8.7 KiB
C
373 lines
8.7 KiB
C
/*
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**********************************************************************************************************************
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* eGon
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* the Embedded System
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* script parser sub-system
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*
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* Copyright(C), 2006-2010, SoftWinners Microelectronic Co., Ltd.
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* All Rights Reserved
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*
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* File : script.c
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*
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* By : Jerry
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*
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* Version : V2.00
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*
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* Date :
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*
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* Descript:
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**********************************************************************************************************************
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*/
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#include <malloc.h>
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#include "types.h"
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#include <string.h>
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#include "script.h"
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//#include "crc.h"
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//#include "sunxi_mbr.h"
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#include <ctype.h>
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#include <unistd.h>
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static char *script_mod_buf = NULL; //指向第一个主键
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static int script_main_key_count = 0; //保存主键的个数
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static int partition_start;
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static int partition_next;
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static int _test_str_length(char *str)
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{
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int length = 0;
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while(str[length++])
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{
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if(length > 32)
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{
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length = 32;
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break;
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}
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}
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return length;
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}
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/*
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************************************************************************************************************
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*
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* script_parser_init
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*
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* 函数名称：
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*
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* 参数列表：script_buf: 脚本数据池
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*
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* 返回值 ：
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*
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* 说明 ：
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*
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*
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************************************************************************************************************
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*/
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int script_parser_init(char *script_buf)
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{
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script_head_t *script_head;
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if(script_buf)
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{
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script_mod_buf = script_buf;
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script_head = (script_head_t *)script_mod_buf;
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script_main_key_count = script_head->main_key_count;
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return SCRIPT_PARSER_OK;
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}
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else
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{
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printf("the input script data buffer is null\n");
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return SCRIPT_PARSER_EMPTY_BUFFER;
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}
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}
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/*
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************************************************************************************************************
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*
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* script_parser_exit
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*
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* 函数名称：
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*
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* 参数列表：NULL
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*
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* 返回值 ：
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*
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* 说明 ：
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*
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*
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************************************************************************************************************
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*/
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int script_parser_exit(void)
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{
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script_mod_buf = NULL;
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script_main_key_count = 0;
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return SCRIPT_PARSER_OK;
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}
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/*
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************************************************************************************************************
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*
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* script_parser_fetch
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*
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* 函数名称：
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*
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* 参数列表：
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*
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* 返回值 ：
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*
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* 说明 ：根据传进的主键，子键，取得对应的数值
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*
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*
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************************************************************************************************************
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*/
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int script_parser_fetch(char *main_name, char *sub_name, int value[])
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{
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char main_char[32], sub_char[32];
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script_main_key_t *main_key;
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script_sub_key_t *sub_key;
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int i, j, k;
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int pattern, word_count;
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//检查脚本buffer是否存在
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if(!script_mod_buf)
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{
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printf("the script data buffer is null, unable to parser\n");
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return SCRIPT_PARSER_EMPTY_BUFFER;
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}
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//检查主键名称和子键名称是否为空
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if((main_name == NULL) || (sub_name == NULL))
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{
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printf("the input main key name or sub key name is null\n");
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return SCRIPT_PARSER_KEYNAME_NULL;
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}
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//检查数据buffer是否为空
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if(value == NULL)
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{
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printf("the input data value is null\n");
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return SCRIPT_PARSER_DATA_VALUE_NULL;
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}
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//保存主键名称和子键名称，如果超过16字节则截取16字节
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memset(main_char, 0, sizeof(main_char));
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memset(sub_char, 0, sizeof(sub_char));
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if(_test_str_length(main_name) <= 32)
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{
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strcpy(main_char, main_name);
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}
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else
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{
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strncpy(main_char, main_name, 31);
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}
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if(_test_str_length(sub_name) <= 32)
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{
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strcpy(sub_char, sub_name);
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}
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else
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{
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strncpy(sub_char, sub_name, 31);
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}
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for(i=0;i<script_main_key_count;i++)
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{
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main_key = (script_main_key_t *)(script_mod_buf + (sizeof(script_head_t)) + i * sizeof(script_main_key_t));
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if(strcmp(main_key->main_name, main_char)) //如果主键不匹配，寻找下一个主键
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{
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continue;
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}
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//主键匹配，寻找子键名称匹配
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for(j=0;j<main_key->lenth;j++)
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{
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sub_key = (script_sub_key_t *)(script_mod_buf + (main_key->offset<<2) + (j * sizeof(script_sub_key_t)));
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if(strcmp(sub_key->sub_name, sub_char)) //如果主键不匹配，寻找下一个主键
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{
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continue;
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}
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pattern = (sub_key->pattern>>16) & 0xffff; //获取数据的类型
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word_count = (sub_key->pattern>> 0) & 0xffff; //获取所占用的word个数
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//取出数据
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switch(pattern)
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{
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case DATA_TYPE_SINGLE_WORD: //单word数据类型
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value[0] = *(int *)(script_mod_buf + (sub_key->offset<<2));
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break;
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case DATA_TYPE_STRING: //字符串数据类型
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memcpy((char *)value, script_mod_buf + (sub_key->offset<<2), word_count << 2);
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break;
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case DATA_TYPE_GPIO_WORD: //多word数据类型
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k = 0;
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while(k < word_count)
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{
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value[k] = *(int *)(script_mod_buf + (sub_key->offset<<2) + (k<<2));
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k ++;
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}
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break;
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}
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return SCRIPT_PARSER_OK;
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}
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}
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return SCRIPT_PARSER_KEY_NOT_FIND;
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}
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/*
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************************************************************************************************************
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*
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* script_parser_fetch
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*
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* 函数名称：
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*
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* 参数列表：
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*
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* 返回值 ：
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*
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* 说明 ：根据传进的主键，子键，取得对应的数值
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*
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*
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************************************************************************************************************
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*/
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int script_parser_fetch_partition(void)
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{
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script_main_key_t *main_key;
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int i;
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//检查脚本buffer是否存在
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if(!partition_start) //先找partition_start，然后找其后面的partition
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{
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for(i=0;i<script_main_key_count;i++)
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{
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main_key = (script_main_key_t *)(script_mod_buf + (sizeof(script_head_t)) + i * sizeof(script_main_key_t));
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if(strcmp(main_key->main_name, "partition_start")) //如果主键不匹配，寻找下一个主键
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{
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continue;
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}
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else
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{
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partition_start = i;
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partition_next = partition_start;
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break;
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}
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}
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if(!partition_start)
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{
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printf("unable to find key partition_start\n");
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return -1;
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}
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}
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partition_next ++;
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main_key = (script_main_key_t *)(script_mod_buf + (sizeof(script_head_t)) + partition_next * sizeof(script_main_key_t));
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if(strcmp(main_key->main_name, "partition"))
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{
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printf("this is not a partition key\n");
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return 0;
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}
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return partition_next;
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}
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/*
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************************************************************************************************************
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*
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* script_parser_fetch
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*
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* 函数名称：
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*
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* 参数列表：
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*
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* 返回值 ：
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*
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* 说明 ：根据传进的主键，子键，取得对应的数值
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*
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*
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************************************************************************************************************
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*/
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int script_parser_fetch_mainkey_sub(char *sub_name, int index, int *value)
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{
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char sub_char[32];
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script_main_key_t *main_key;
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script_sub_key_t *sub_key;
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int j, k;
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int pattern, word_count;
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//检查脚本buffer是否存在
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if(!script_mod_buf)
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{
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printf("the script data buffer is null, unable to parser\n");
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return SCRIPT_PARSER_EMPTY_BUFFER;
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}
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//检查主键名称和子键名称是否为空
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if(sub_name == NULL)
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{
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printf("the input sub key name is null\n");
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return SCRIPT_PARSER_KEYNAME_NULL;
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}
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//保存主键名称和子键名称，如果超过16字节则截取16字节
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memset(sub_char, 0, sizeof(sub_char));
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if(_test_str_length(sub_name) <= 32)
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{
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strcpy(sub_char, sub_name);
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}
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main_key = (script_main_key_t *)(script_mod_buf + (sizeof(script_head_t)) + index * sizeof(script_main_key_t));
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if(strcmp(main_key->main_name, "partition")) //如果主键不匹配，寻找下一个主键
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{
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printf("this is not a good partition key\n");
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return -1;
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}
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//主键匹配，寻找子键名称匹配
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for(j=0;j<main_key->lenth;j++)
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{
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sub_key = (script_sub_key_t *)(script_mod_buf + (main_key->offset<<2) + (j * sizeof(script_sub_key_t)));
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if(strcmp(sub_key->sub_name, sub_char)) //如果主键不匹配，寻找下一个主键
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{
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continue;
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}
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pattern = (sub_key->pattern>>16) & 0xffff; //获取数据的类型
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word_count = (sub_key->pattern>> 0) & 0xffff; //获取所占用的word个数
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//取出数据
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switch(pattern)
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{
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case DATA_TYPE_SINGLE_WORD: //单word数据类型
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value[0] = *(int *)(script_mod_buf + (sub_key->offset<<2));
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break;
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case DATA_TYPE_STRING: //字符串数据类型
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if(!word_count)
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{
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return 1;
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}
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memcpy((char *)value, script_mod_buf + (sub_key->offset<<2), word_count << 2);
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break;
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case DATA_TYPE_GPIO_WORD: //多word数据类型
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k = 0;
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while(k < word_count)
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{
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value[k] = *(int *)(script_mod_buf + (sub_key->offset<<2) + (k<<2));
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k ++;
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}
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break;
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}
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return SCRIPT_PARSER_OK;
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}
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return SCRIPT_PARSER_KEY_NOT_FIND;
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}
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