int SSDB::qfix(const Bytes &name){
Transaction trans(binlogs);
std::string key_s = encode_qitem_key(name, QITEM_MIN_SEQ - 1);
std::string key_e = encode_qitem_key(name, QITEM_MAX_SEQ);
bool error = false;
uint64_t seq_min = 0;
uint64_t seq_max = 0;
uint64_t count = 0;
Iterator *it = this->iterator(key_s, key_e, QITEM_MAX_SEQ);
while(it->next()){
//dump(it->key().data(), it->key().size());
if(seq_min == 0){
if(decode_qitem_key(it->key(), NULL, &seq_min) == -1){
// or just delete it?
error = true;
break;
}
}
if(decode_qitem_key(it->key(), NULL, &seq_max) == -1){
error = true;
break;
}
count ++;
}
delete it;
if(error){
return -1;
}
if(count == 0){
this->binlogs->Delete(encode_qsize_key(name));
qdel_one(this, name, QFRONT_SEQ);
qdel_one(this, name, QBACK_SEQ);
}else{
this->binlogs->Put(encode_qsize_key(name), leveldb::Slice((char *)&count, sizeof(count)));
qset_one(this, name, QFRONT_SEQ, Bytes(&seq_min, sizeof(seq_min)));
qset_one(this, name, QBACK_SEQ, Bytes(&seq_max, sizeof(seq_max)));
}
leveldb::Status s = binlogs->commit();
if(!s.ok()){
log_error("Write error!");
return -1;
}
return 0;
}
int Slave::proc_sync(const Binlog &log, const std::vector<Bytes> &req){
switch(log.cmd()){
case BinlogCommand::KSET:
{
if(req.size() != 2){
break;
}
std::string key;
if(decode_kv_key(log.key(), &key) == -1){
break;
}
log_trace("set %s", hexmem(key.data(), key.size()).c_str());
if(ssdb->set(key, req[1], log_type) == -1){
return -1;
}
}
break;
case BinlogCommand::KDEL:
{
std::string key;
if(decode_kv_key(log.key(), &key) == -1){
break;
}
log_trace("del %s", hexmem(key.data(), key.size()).c_str());
if(ssdb->del(key, log_type) == -1){
return -1;
}
}
break;
case BinlogCommand::HSET:
{
if(req.size() != 2){
break;
}
std::string name, key;
if(decode_hash_key(log.key(), &name, &key) == -1){
break;
}
log_trace("hset %s %s",
hexmem(name.data(), name.size()).c_str(),
hexmem(key.data(), key.size()).c_str());
if(ssdb->hset(name, key, req[1], log_type) == -1){
return -1;
}
}
break;
case BinlogCommand::HDEL:
{
std::string name, key;
if(decode_hash_key(log.key(), &name, &key) == -1){
break;
}
log_trace("hdel %s %s",
hexmem(name.data(), name.size()).c_str(),
hexmem(key.data(), key.size()).c_str());
if(ssdb->hdel(name, key, log_type) == -1){
return -1;
}
}
break;
case BinlogCommand::ZSET:
{
if(req.size() != 2){
break;
}
std::string name, key;
if(decode_zset_key(log.key(), &name, &key) == -1){
break;
}
log_trace("zset %s %s",
hexmem(name.data(), name.size()).c_str(),
hexmem(key.data(), key.size()).c_str());
if(ssdb->zset(name, key, req[1], log_type) == -1){
return -1;
}
}
break;
case BinlogCommand::ZDEL:
{
std::string name, key;
if(decode_zset_key(log.key(), &name, &key) == -1){
break;
}
log_trace("zdel %s %s",
hexmem(name.data(), name.size()).c_str(),
hexmem(key.data(), key.size()).c_str());
if(ssdb->zdel(name, key, log_type) == -1){
return -1;
}
}
break;
case BinlogCommand::QSET:
case BinlogCommand::QPUSH_BACK:
case BinlogCommand::QPUSH_FRONT:
{
if(req.size() != 2){
break;
}
std::string name;
uint64_t seq;
if(decode_qitem_key(log.key(), &name, &seq) == -1){
break;
}
if(seq < QITEM_MIN_SEQ || seq > QITEM_MAX_SEQ){
break;
}
int ret;
if(log.cmd() == BinlogCommand::QSET){
log_trace("qset %s %" PRIu64 "", hexmem(name.data(), name.size()).c_str(), seq);
ret = ssdb->qset_by_seq(name, seq, req[1], log_type);
}else if(log.cmd() == BinlogCommand::QPUSH_BACK){
log_trace("qpush_back %s", hexmem(name.data(), name.size()).c_str());
ret = ssdb->qpush_back(name, req[1], log_type);
}else{
log_trace("qpush_front %s", hexmem(name.data(), name.size()).c_str());
ret = ssdb->qpush_front(name, req[1], log_type);
}
if(ret == -1){
return -1;
}
}
break;
case BinlogCommand::QPOP_BACK:
case BinlogCommand::QPOP_FRONT:
{
int ret;
const Bytes name = log.key();
std::string tmp;
if(log.cmd() == BinlogCommand::QPOP_BACK){
log_trace("qpop_back %s", hexmem(name.data(), name.size()).c_str());
ret = ssdb->qpop_back(name, &tmp, log_type);
}else{
log_trace("qpop_front %s", hexmem(name.data(), name.size()).c_str());
ret = ssdb->qpop_front(name, &tmp, log_type);
}
if(ret == -1){
return -1;
}
}
break;
default:
log_error("unknown binlog, type=%d, cmd=%d", log.type(), log.cmd());
break;
}
this->last_seq = log.seq();
if(log.type() == BinlogType::COPY){
this->last_key = log.key().String();
}
this->save_status();
return 0;
}