/*
* Get key/value
*/
int ConfigGet(tConfigDB* db,const void* pKey,int KeySize,void* pValue,int *pValueSize)
{
tCluster * cluster = (tCluster*)db->cluster;
int ret = -1;
tKey key;
key.str = (char*)pKey;
key.len = KeySize;
tValue value;
value.str = (char*)pValue;
value.len = *pValueSize;
unsigned int hash = gethash(key.str,key.len);
hash = hash%MAX_NODE_NUM;/* distribute strategy */
tNode* pNode = (tNode*)GetNode(cluster,hash);
/* hit local */
if(pNode->fd == 0)
{
ret = DBGetKeyValue(db->db,key,&value);
}
else if(pNode->fd > 0)
{
ret = RemoteDBGetKeyValue(pNode->fd,key,&value);
}
else
{
pNode->fd = RemoteDBCreate(db->filename,pNode->addr,pNode->port);
if(pNode->fd == -1)
{
return -1;
}
ret = RemoteDBGetKeyValue(pNode->fd,key,&value);
}
/* fail to get,get from master */
if(ret == -1)
{
if(pNode == (tNode*)GetNode(cluster,MAX_NODE_NUM))
{
return -1;
}
tNode* pNode = (tNode*)GetNode(cluster,MAX_NODE_NUM);
if(pNode->fd == 0)
{
ret = DBGetKeyValue(db->db,key,&value);
}
else if(pNode->fd > 0)
{
ret = RemoteDBGetKeyValue(pNode->fd,key,&value);
}
else
{
pNode->fd = RemoteDBCreate(db->filename,pNode->addr,pNode->port);
if(pNode->fd == -1)
{
return -1;
}
ret = RemoteDBGetKeyValue(pNode->fd,key,&value);
}
}
*pValueSize = value.len;
return SUCCESS;
}
int ExecCmd(char * cmdbuf)
{
char temp[MAX_STR_LEN] = "\0";
if(CheckCmd(cmdbuf,"help") == 0 )
{
printf("open filename - EX:open nezha.hdb\n");
printf("set key value - EX:set 100 helloworld\n");
printf("get key - EX:get 100\n");
printf("delete key - EX:delete 100\n");
printf("close - leave nezha.hdb\n");
printf("help - list cmds info\n");
}
else if(CheckCmd(cmdbuf,"open (.*)\\.hdb") == 0)
{
if(strlen(dbname) > 0)
{
printf("Please close %s first.\n",dbname);
}
else
{
sscanf(cmdbuf,"%s%s",temp,dbname);
db = DBCreate(dbname);
}
}
else if(db == NULL && CheckCmd(cmdbuf,"set|get|delete") == 0)
{
printf("Please open a database file first.\n");
}
else if(CheckCmd(cmdbuf,"close") == 0)
{
if(db != NULL)
{
DBDelete(db);
db = NULL;
}
dbname[0] = '\0';
}
else if(CheckCmd(cmdbuf,"exit") == 0)
{
if(db != NULL)
{
DBDelete(db);
}
exit(0);
}
else if(CheckCmd(cmdbuf,"set ([0-9]+) (.*)") == 0)
{
tKey key;
tValue value;
char str[MAX_STR_LEN] = "\0";
sscanf(cmdbuf,"%s%d%s",temp,&key,str);
value.str = strstr(cmdbuf,str);
value.len = cmdbuf + MAX_STR_LEN - value.str;
if(DBSetKeyValue(db,key,value) != 0)
{
printf("ERROR:set %d %s\n",(int)key,value.str);
}
//printf("set %d %s\n",(int)key,value.str);
}
else if(CheckCmd(cmdbuf,"get ([0-9]+)") == 0)
{
tKey key = -1;
tValue value;
char str[MAX_STR_LEN] = "\0";
value.str = str;
value.len = MAX_STR_LEN;
sscanf(cmdbuf,"%s%d",temp,&key);
if(DBGetKeyValue(db,key,&value) == 0)
{
printf("%d -> %s\n",key,value.str);
}
else
{
printf("ERROR:get %d Not found!\n",(int)key);
}
}
else if(CheckCmd(cmdbuf,"delete ([0-9]+)") == 0)
{
tKey key = -1;
tValue value;
char str[MAX_STR_LEN] = "\0";
value.str = str;
value.len = MAX_STR_LEN;
sscanf(cmdbuf,"%s%d",temp,&key);
if(DBDelKeyValue(db,key) != 0)
{
printf("ERROR:delete %d\n",(int)key);
}
}
else
{
printf("Unknow Command!\n");
}
return 0;
}