void rdb_load_triggle(rio *rdb)
{
//save event
//db_num int int int int
//db
//scripts_num
//key event lua_scripts
//key event lua_scripts
//.......
int i=0;
for(i=0;i<server.dbnum;i++){
int eventid=rioRead(rdb,&eventid,4);
server.bridge_db.bridge_event[i]=eventid;
// printf('read from dump file eventid:%d',eventid);
}
long j=0;
for(i=0;i<server.dbnum;i++)
{
int dsize;
rioRead(rdb,&dsize,4);
// redisLog(REDIS_NOTICE,"read triggle dbsize, dbid:%d size:%d",i,dsize);
for(j=0;j<dsize;j++)
{
struct bridge_db_triggle_t *tmptrg=zmalloc(sizeof(struct bridge_db_triggle_t));
robj* key=rdbLoadStringObject(rdb);
rioRead(rdb,&tmptrg->event,4);
rioRead(rdb,&tmptrg->dbid,4);
int type;
type=rdbLoadType(rdb);
robj *mm=rdbLoadObject(type,rdb);
tmptrg->lua_scripts=mm;
// redisLog(REDIS_NOTICE,"redis one triggle row, key:%s event:%d db:%d script:%s",copy,tmptrg->event,tmptrg->dbid,tmptrg->lua_scripts->ptr);
sds copy=sdsdup(key->ptr);
dictAdd(server.bridge_db.triggle_scipts[i],copy,tmptrg);
decrRefCount(key);
}
}
}
long long rdbLoadMillisecondTime(rio* rdb)
{
int64_t t64;
if (rioRead(rdb, &t64, 8) == 0) {
return -1;
}
return (long long)t64;
}
/* Load a "type" in RDB format, that is a one byte unsigned integer.
* This function is not only used to load object types, but also special
* "types" like the end-of-file type, the EXPIRE type, and so forth. */
int rdbLoadType(rio* rdb)
{
unsigned char type;
if (rioRead(rdb, &type, 1) == 0) {
return -1;
}
return type;
}
time_t rdbLoadTime(rio* rdb)
{
int32_t t32;
if (rioRead(rdb, &t32, 4) == 0) {
return -1;
}
return (time_t)t32;
}
/* Check the specified RDB file. Return 0 if the RDB looks sane, otherwise
* 1 is returned. */
int redis_check_rdb(char *rdbfilename) {
uint64_t dbid;
int type, rdbver;
char buf[1024];
long long expiretime, now = mstime();
FILE *fp;
static rio rdb; /* Pointed by global struct riostate. */
if ((fp = fopen(rdbfilename,"r")) == NULL) return 1;
rioInitWithFile(&rdb,fp);
rdbstate.rio = &rdb;
rdb.update_cksum = rdbLoadProgressCallback;
if (rioRead(&rdb,buf,9) == 0) goto eoferr;
buf[9] = '\0';
if (memcmp(buf,"REDIS",5) != 0) {
rdbCheckError("Wrong signature trying to load DB from file");
return 1;
}
rdbver = atoi(buf+5);
if (rdbver < 1 || rdbver > RDB_VERSION) {
rdbCheckError("Can't handle RDB format version %d",rdbver);
return 1;
}
startLoading(fp);
while(1) {
robj *key, *val;
expiretime = -1;
/* Read type. */
rdbstate.doing = RDB_CHECK_DOING_READ_TYPE;
if ((type = rdbLoadType(&rdb)) == -1) goto eoferr;
/* Handle special types. */
if (type == RDB_OPCODE_EXPIRETIME) {
rdbstate.doing = RDB_CHECK_DOING_READ_EXPIRE;
/* EXPIRETIME: load an expire associated with the next key
* to load. Note that after loading an expire we need to
* load the actual type, and continue. */
if ((expiretime = rdbLoadTime(&rdb)) == -1) goto eoferr;
/* We read the time so we need to read the object type again. */
rdbstate.doing = RDB_CHECK_DOING_READ_TYPE;
if ((type = rdbLoadType(&rdb)) == -1) goto eoferr;
/* the EXPIRETIME opcode specifies time in seconds, so convert
* into milliseconds. */
expiretime *= 1000;
} else if (type == RDB_OPCODE_EXPIRETIME_MS) {
/* EXPIRETIME_MS: milliseconds precision expire times introduced
* with RDB v3. Like EXPIRETIME but no with more precision. */
rdbstate.doing = RDB_CHECK_DOING_READ_EXPIRE;
if ((expiretime = rdbLoadMillisecondTime(&rdb)) == -1) goto eoferr;
/* We read the time so we need to read the object type again. */
rdbstate.doing = RDB_CHECK_DOING_READ_TYPE;
if ((type = rdbLoadType(&rdb)) == -1) goto eoferr;
} else if (type == RDB_OPCODE_EOF) {
/* EOF: End of file, exit the main loop. */
break;
} else if (type == RDB_OPCODE_SELECTDB) {
/* SELECTDB: Select the specified database. */
rdbstate.doing = RDB_CHECK_DOING_READ_LEN;
if ((dbid = rdbLoadLen(&rdb,NULL)) == RDB_LENERR)
goto eoferr;
rdbCheckInfo("Selecting DB ID %d", dbid);
continue; /* Read type again. */
} else if (type == RDB_OPCODE_RESIZEDB) {
/* RESIZEDB: Hint about the size of the keys in the currently
* selected data base, in order to avoid useless rehashing. */
uint64_t db_size, expires_size;
rdbstate.doing = RDB_CHECK_DOING_READ_LEN;
if ((db_size = rdbLoadLen(&rdb,NULL)) == RDB_LENERR)
goto eoferr;
if ((expires_size = rdbLoadLen(&rdb,NULL)) == RDB_LENERR)
goto eoferr;
continue; /* Read type again. */
} else if (type == RDB_OPCODE_AUX) {
/* AUX: generic string-string fields. Use to add state to RDB
* which is backward compatible. Implementations of RDB loading
* are requierd to skip AUX fields they don't understand.
*
* An AUX field is composed of two strings: key and value. */
robj *auxkey, *auxval;
rdbstate.doing = RDB_CHECK_DOING_READ_AUX;
if ((auxkey = rdbLoadStringObject(&rdb)) == NULL) goto eoferr;
if ((auxval = rdbLoadStringObject(&rdb)) == NULL) goto eoferr;
rdbCheckInfo("AUX FIELD %s = '%s'",
(char*)auxkey->ptr, (char*)auxval->ptr);
decrRefCount(auxkey);
decrRefCount(auxval);
continue; /* Read type again. */
} else {
if (!rdbIsObjectType(type)) {
rdbCheckError("Invalid object type: %d", type);
return 1;
}
rdbstate.key_type = type;
}
/* Read key */
rdbstate.doing = RDB_CHECK_DOING_READ_KEY;
if ((key = rdbLoadStringObject(&rdb)) == NULL) goto eoferr;
rdbstate.key = key;
rdbstate.keys++;
/* Read value */
rdbstate.doing = RDB_CHECK_DOING_READ_OBJECT_VALUE;
if ((val = rdbLoadObject(type,&rdb)) == NULL) goto eoferr;
/* Check if the key already expired. This function is used when loading
* an RDB file from disk, either at startup, or when an RDB was
* received from the master. In the latter case, the master is
* responsible for key expiry. If we would expire keys here, the
* snapshot taken by the master may not be reflected on the slave. */
if (server.masterhost == NULL && expiretime != -1 && expiretime < now)
rdbstate.already_expired++;
if (expiretime != -1) rdbstate.expires++;
rdbstate.key = NULL;
decrRefCount(key);
decrRefCount(val);
rdbstate.key_type = -1;
}
/* Verify the checksum if RDB version is >= 5 */
if (rdbver >= 5 && server.rdb_checksum) {
uint64_t cksum, expected = rdb.cksum;
rdbstate.doing = RDB_CHECK_DOING_CHECK_SUM;
if (rioRead(&rdb,&cksum,8) == 0) goto eoferr;
memrev64ifbe(&cksum);
if (cksum == 0) {
rdbCheckInfo("RDB file was saved with checksum disabled: no check performed.");
} else if (cksum != expected) {
rdbCheckError("RDB CRC error");
} else {
rdbCheckInfo("Checksum OK");
}
}
fclose(fp);
return 0;
eoferr: /* unexpected end of file is handled here with a fatal exit */
if (rdbstate.error_set) {
rdbCheckError(rdbstate.error);
} else {
rdbCheckError("Unexpected EOF reading RDB file");
}
return 1;
}
