int SSDB::hincr(const Bytes &name, const Bytes &key, int64_t by, std::string *new_val, char log_type){
Transaction trans(binlogs);
int64_t val;
std::string old;
int ret = this->hget(name, key, &old);
if(ret == -1){
return -1;
}else if(ret == 0){
val = by;
}else{
val = str_to_int64(old.data(), old.size()) + by;
}
*new_val = int64_to_str(val);
ret = hset_one(this, name, key, *new_val, log_type);
if(ret >= 0){
if(ret > 0){
if(incr_hsize(this, name, ret) == -1){
return -1;
}
}
leveldb::Status s = binlogs->commit();
if(!s.ok()){
return -1;
}
}
return ret;
}
int SSDBImpl::hincr(const Bytes &name, const Bytes &key, int64_t by, int64_t *new_val, char log_type){
Transaction trans(binlogs);
std::string old;
int ret = this->hget(name, key, &old);
if(ret == -1){
return -1;
}else if(ret == 0){
*new_val = by;
}else{
*new_val = str_to_int64(old) + by;
if(errno != 0){
return 0;
}
}
ret = hset_one(this, name, key, str(*new_val), log_type);
if(ret == -1){
return -1;
}
if(ret >= 0){
if(ret > 0){
if(incr_hsize(this, name, ret) == -1){
return -1;
}
}
leveldb::Status s = binlogs->commit();
if(!s.ok()){
return -1;
}
}
return 1;
}
int SSDB::multi_hset(const Bytes &name, const std::vector<Bytes> &kvs, int offset, char log_type){
Transaction trans(binlogs);
int ret = 0;
std::vector<Bytes>::const_iterator it;
it = kvs.begin() + offset;
for(; it != kvs.end(); it += 2){
const Bytes &key = *it;
const Bytes &val = *(it + 1);
int tmp = hset_one(this, name, key, val, log_type);
if(tmp == -1){
return -1;
}
ret += tmp;
}
if(ret >= 0){
if(ret > 0){
if(incr_hsize(this, name, ret) == -1){
return -1;
}
}
leveldb::Status s = binlogs->commit();
if(!s.ok()){
log_error("zdel error: %s", s.ToString().c_str());
return -1;
}
}
return ret;
}
int SSDB::hset(const Bytes &name, const Bytes &key, const Bytes &val, char log_type){
Transaction trans(binlogs);
int ret = hset_one(this, name, key, val, log_type);
if(ret >= 0){
if(ret > 0){
if(incr_hsize(this, name, ret) == -1){
return -1;
}
}
leveldb::Status s = binlogs->commit();
if(!s.ok()){
return -1;
}
}
return ret;
}
int SSDBImpl::hmax_or_min(const Bytes &name, const Bytes &key, int64_t new_val, int64_t *ret_val, bool is_max, char log_type){
Transaction trans(binlogs);
std::string old;
int ret = this->hget(name, key, &old);
if(ret == -1){
return -1;
}else if(ret == 0){
*ret_val = new_val;
}else{
int64_t old_val = str_to_int64(old);
if(errno != 0){
return 0;
}
if (is_max) {
*ret_val = old_val > new_val ? old_val : new_val;
} else {
*ret_val = old_val < new_val ? old_val : new_val;
}
}
ret = hset_one(this, name, key, str(*ret_val), log_type);
if(ret == -1){
return -1;
}
if(ret >= 0){
if(ret > 0){
if(incr_hsize(this, name, ret) == -1){
return -1;
}
}
leveldb::Status s = binlogs->commit();
if(!s.ok()){
return -1;
}
}
return 1;
}
