/**
* @return -1: error, 0: item updated, 1: new item inserted
*/
int SSDB::zset(const Bytes &name, const Bytes &key, const Bytes &score, char log_type){
Transaction trans(binlogs);
int ret = zset_one(this, name, key, score, log_type);
if(ret >= 0){
if(ret > 0){
if(incr_zsize(this, name, ret) == -1){
return -1;
}
}
leveldb::Status s = binlogs->commit();
if(!s.ok()){
log_error("zset error: %s", s.ToString().c_str());
return -1;
}
}
return ret;
}
int zset_incr(ldb_context_t* context, const ldb_slice_t* name,
const ldb_slice_t* key, const ldb_meta_t* meta, int64_t by, int64_t* val){
int64_t old_score = 0;
int ret = zset_get(context, name, key, &old_score);
int retval = LDB_OK;
if(ret == LDB_OK){
*val = old_score + by;
}else if(ret == LDB_OK_NOT_EXIST){
*val = by;
}else{
retval = ret;
goto end;
}
ret = zset_one(context, name, key, meta, *val);
if(ret >= 0){
if(ret > 0){
if(zset_incr_size(context, name, ret) == -1){
retval = LDB_ERR;
goto end;
}
}
char* errptr = NULL;
ldb_context_writebatch_commit(context, &errptr);
if(errptr!=NULL){
fprintf(stderr, "leveldb_write fail %s.\n", errptr);
leveldb_free(errptr);
retval = LDB_ERR;
goto end;
}
retval = LDB_OK;
}else{
retval = LDB_ERR;
}
end:
return retval;
}
