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#include <sys/types.h>
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#include <sys/ipc.h>
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#include <ctype.h>
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#include <errno.h>
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#include <string.h>
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#include <stdlib.h>
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#include <stdio.h>
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//#include "shm.h"
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#include "script.h"
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#include "debug.h"
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#define DATA_TYPE_SINGLE_WORD 1
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#define DATA_TYPE_STRING 2
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#define DATA_TYPE_MULTI_WORD 3
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#define DATA_TYPE_GPIO 4
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struct script_head
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{
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int mainkey_cnt;
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int version[3];
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};
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struct script_mainkey
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{
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char name[32];
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int length;
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int offset;
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};
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struct script_subkey
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{
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char name[32];
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int offset;
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int pattern;
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};
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static char *script_buf = NULL;
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static int mainkey_cnt = 0;
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int init_script(char* buf)
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{
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#if 0
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script_buf = shmat(shmid, 0, 0);
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if (script_buf == (void *)-1) {
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db_error("script: attach the share memory segment failed(%s)\n",
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strerror(errno));
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return -1;
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}
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#else
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script_buf = buf;
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#endif
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struct script_head *head = (struct script_head *)script_buf;
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mainkey_cnt = head->mainkey_cnt;
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db_debug("script: main key count #%d\n", mainkey_cnt);
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db_msg("script: V%d.%d.%d\n", head->version[0],
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head->version[1], head->version[2]);
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return 0;
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}
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void deinit_script(void)
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{
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if (script_buf) {
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// shmdt(script_buf);
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script_buf = NULL;
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}
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mainkey_cnt = 0;
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}
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int script_mainkey_cnt(void)
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{
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return mainkey_cnt;
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}
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int script_mainkey_name(int idx, char *name)
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{
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struct script_mainkey *mainkey;
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if (script_buf == NULL) {
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return -1;
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}
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mainkey = (struct script_mainkey *)(script_buf + sizeof(struct script_head) +
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idx * sizeof(struct script_mainkey));
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strncpy(name, mainkey->name, 32);
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return 0;
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}
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int script_fetch(char *main_name, char *sub_name, int value[], int count)
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{
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int i, j;
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struct script_mainkey *mainkey;
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struct script_subkey *subkey;
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int pattern, wordcnt;
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/* check parameter */
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if (script_buf == NULL) {
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return -1;
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}
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if (main_name == NULL || sub_name == NULL) {
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return -1;
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}
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if (value == NULL) {
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return -1;
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}
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memset(value, 0, sizeof(int) * count);
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/* search main key */
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for (i = 0; i < mainkey_cnt; i++) {
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mainkey = (struct script_mainkey *)(script_buf +
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sizeof(struct script_head) + i * sizeof(struct script_mainkey));
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if (strncmp(mainkey->name, main_name, 31)) {
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continue;
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}
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/* search sub key */
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for (j = 0; j < mainkey->length; j++) {
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subkey = (struct script_subkey *)(script_buf +
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(mainkey->offset << 2) +
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(j * sizeof(struct script_subkey)));
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if (strncmp(subkey->name, sub_name, 31)) {
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continue;
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}
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pattern = (subkey->pattern >> 16) & 0xffff;
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wordcnt = subkey->pattern & 0xffff;
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switch (pattern) {
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case DATA_TYPE_SINGLE_WORD:
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value[0] = *(int *)(script_buf + (subkey->offset << 2));
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break;
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case DATA_TYPE_STRING:
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if (wordcnt == 0)
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break;
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if (wordcnt > count)
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wordcnt = count;
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memcpy((char *)value, script_buf + (subkey->offset << 2),
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wordcnt << 2);
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break;
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case DATA_TYPE_GPIO:
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db_debug("%s: L%d fix me\n", __func__, __LINE__);
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break;
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default:
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db_debug("%s: L%d fix me\n", __func__, __LINE__);
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break;
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}
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return 0;
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}
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}
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return -1;
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}
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