streamBackendRocksdb.c

/*
 * Copyright (c) 2019 TAOS Data, Inc. <jhtao@taosdata.com>
 *
 * This program is free software: you can use, redistribute, and/or modify
 * it under the terms of the GNU Affero General Public License, version 3
 * or later ("AGPL"), as published by the Free Software Foundation.
 *
 * This program is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.
 *
 * You should have received a copy of the GNU Affero General Public License
 * along with this program. If not, see <http://www.gnu.org/licenses/>.
 */

#include "streamBackendRocksdb.h"
#include "executor.h"
#include "query.h"
#include "streamInc.h"
#include "tcommon.h"
#include "tref.h"

typedef struct SCompactFilteFactory {
  void* status;
} SCompactFilteFactory;

typedef struct {
  void* tableOpt;
} RocksdbCfParam;
typedef struct {
  rocksdb_t*                       db;
  rocksdb_column_family_handle_t** pHandle;
  rocksdb_writeoptions_t*          wOpt;
  rocksdb_readoptions_t*           rOpt;
  rocksdb_options_t**              cfOpt;
  rocksdb_options_t*               dbOpt;
  RocksdbCfParam*                  param;
  void*                            pBackend;
  SListNode*                       pCompareNode;
  rocksdb_comparator_t**           pCompares;
} RocksdbCfInst;

uint32_t nextPow2(uint32_t x);
int32_t  streamStateOpenBackendCf(void* backend, char* name, char** cfs, int32_t nCf);

void destroyRocksdbCfInst(RocksdbCfInst* inst);

void          destroyCompactFilteFactory(void* arg);
void          destroyCompactFilte(void* arg);
const char*   compactFilteFactoryName(void* arg);
const char*   compactFilteName(void* arg);
unsigned char compactFilte(void* arg, int level, const char* key, size_t klen, const char* val, size_t vlen,
                           char** newval, size_t* newvlen, unsigned char* value_changed);
rocksdb_compactionfilter_t* compactFilteFactoryCreateFilter(void* arg, rocksdb_compactionfiltercontext_t* ctx);

const char* cfName[] = {"default", "state", "fill", "sess", "func", "parname", "partag"};

typedef int (*EncodeFunc)(void* key, char* buf);
typedef int (*DecodeFunc)(void* key, char* buf);
typedef int (*ToStringFunc)(void* key, char* buf);
typedef const char* (*CompareName)(void* statue);
typedef int (*BackendCmpFunc)(void* state, const char* aBuf, size_t aLen, const char* bBuf, size_t bLen);
typedef void (*DestroyFunc)(void* state);
typedef int32_t (*EncodeValueFunc)(void* value, int32_t vlen, int64_t ttl, char** dest);
typedef int32_t (*DecodeValueFunc)(void* value, int32_t vlen, int64_t* ttl, char** dest);
typedef struct {
  const char*     key;
  int32_t         len;
  int             idx;
  BackendCmpFunc  cmpFunc;
  EncodeFunc      enFunc;
  DecodeFunc      deFunc;
  ToStringFunc    toStrFunc;
  CompareName     cmpName;
  DestroyFunc     detroyFunc;
  EncodeValueFunc enValueFunc;
  DecodeValueFunc deValueFunc;

} SCfInit;

#define GEN_COLUMN_FAMILY_NAME(name, idstr, SUFFIX) sprintf(name, "%s_%s", idstr, (SUFFIX));
const char* compareDefaultName(void* name);
const char* compareStateName(void* name);
const char* compareWinKeyName(void* name);
const char* compareSessionKeyName(void* name);
const char* compareFuncKeyName(void* name);
const char* compareParKeyName(void* name);
const char* comparePartagKeyName(void* name);

int defaultKeyComp(void* state, const char* aBuf, size_t aLen, const char* bBuf, size_t bLen);
int defaultKeyEncode(void* k, char* buf);
int defaultKeyDecode(void* k, char* buf);
int defaultKeyToString(void* k, char* buf);

int stateKeyDBComp(void* state, const char* aBuf, size_t aLen, const char* bBuf, size_t bLen);
int stateKeyEncode(void* k, char* buf);
int stateKeyDecode(void* k, char* buf);
int stateKeyToString(void* k, char* buf);

int stateSessionKeyDBComp(void* state, const char* aBuf, size_t aLen, const char* bBuf, size_t bLen);
int stateSessionKeyEncode(void* ses, char* buf);
int stateSessionKeyDecode(void* ses, char* buf);
int stateSessionKeyToString(void* k, char* buf);

int winKeyDBComp(void* state, const char* aBuf, size_t aLen, const char* bBuf, size_t bLen);
int winKeyEncode(void* k, char* buf);
int winKeyDecode(void* k, char* buf);
int winKeyToString(void* k, char* buf);

int tupleKeyDBComp(void* state, const char* aBuf, size_t aLen, const char* bBuf, size_t bLen);
int tupleKeyEncode(void* k, char* buf);
int tupleKeyDecode(void* k, char* buf);
int tupleKeyToString(void* k, char* buf);

int parKeyDBComp(void* state, const char* aBuf, size_t aLen, const char* bBuf, size_t bLen);
int parKeyEncode(void* k, char* buf);
int parKeyDecode(void* k, char* buf);
int parKeyToString(void* k, char* buf);

int     stremaValueEncode(void* k, char* buf);
int     streamValueDecode(void* k, char* buf);
int32_t streamValueToString(void* k, char* buf);
int32_t streaValueIsStale(void* k, int64_t ts);
void    destroyFunc(void* arg);

int32_t encodeValueFunc(void* value, int32_t vlen, int64_t ttl, char** dest);
int32_t decodeValueFunc(void* value, int32_t vlen, int64_t* ttl, char** dest);

SCfInit ginitDict[] = {
    {"default", 7, 0, defaultKeyComp, defaultKeyEncode, defaultKeyDecode, defaultKeyToString, compareDefaultName,
     destroyFunc, encodeValueFunc, decodeValueFunc},
    {"state", 5, 1, stateKeyDBComp, stateKeyEncode, stateKeyDecode, stateKeyToString, compareStateName, destroyFunc,
     encodeValueFunc, decodeValueFunc},
    {"fill", 4, 2, winKeyDBComp, winKeyEncode, winKeyDecode, winKeyToString, compareWinKeyName, destroyFunc,
     encodeValueFunc, decodeValueFunc},
    {"sess", 4, 3, stateSessionKeyDBComp, stateSessionKeyEncode, stateSessionKeyDecode, stateSessionKeyToString,
     compareSessionKeyName, destroyFunc, encodeValueFunc, decodeValueFunc},
    {"func", 4, 4, tupleKeyDBComp, tupleKeyEncode, tupleKeyDecode, tupleKeyToString, compareFuncKeyName, destroyFunc,
     encodeValueFunc, decodeValueFunc},
    {"parname", 7, 5, parKeyDBComp, parKeyEncode, parKeyDecode, parKeyToString, compareParKeyName, destroyFunc,
     encodeValueFunc, decodeValueFunc},
    {"partag", 6, 6, parKeyDBComp, parKeyEncode, parKeyDecode, parKeyToString, comparePartagKeyName, destroyFunc,
     encodeValueFunc, decodeValueFunc},
};

void* streamBackendInit(const char* path) {
  qDebug("start to init stream backend at %s", path);
  SBackendHandle* pHandle = taosMemoryCalloc(1, sizeof(SBackendHandle));
  pHandle->list = tdListNew(sizeof(SCfComparator));
  taosThreadMutexInit(&pHandle->mutex, NULL);
  taosThreadMutexInit(&pHandle->cfMutex, NULL);
  pHandle->cfInst = taosHashInit(64, taosGetDefaultHashFunction(TSDB_DATA_TYPE_BINARY), false, HASH_NO_LOCK);

  rocksdb_env_t* env = rocksdb_create_default_env();  // rocksdb_envoptions_create();

  rocksdb_cache_t* cache = rocksdb_cache_create_lru(64 << 20);

  rocksdb_options_t* opts = rocksdb_options_create();
  rocksdb_options_set_env(opts, env);
  rocksdb_options_set_create_if_missing(opts, 1);
  rocksdb_options_set_create_missing_column_families(opts, 1);
  rocksdb_options_set_write_buffer_size(opts, 48 << 20);
  rocksdb_options_set_max_total_wal_size(opts, 128 << 20);
  rocksdb_options_set_recycle_log_file_num(opts, 6);
  rocksdb_options_set_max_write_buffer_number(opts, 2);
  rocksdb_options_set_info_log_level(opts, 0);
  uint32_t dbLimit = nextPow2(tsMaxStreamBackendCache);
  rocksdb_options_set_db_write_buffer_size(opts, dbLimit << 20);

  pHandle->env = env;
  pHandle->dbOpt = opts;
  pHandle->cache = cache;
  pHandle->filterFactory = rocksdb_compactionfilterfactory_create(
      NULL, destroyCompactFilteFactory, compactFilteFactoryCreateFilter, compactFilteFactoryName);
  rocksdb_options_set_compaction_filter_factory(pHandle->dbOpt, pHandle->filterFactory);

  char*  err = NULL;
  size_t nCf = 0;

  char** cfs = rocksdb_list_column_families(opts, path, &nCf, &err);
  if (nCf == 0 || nCf == 1 || err != NULL) {
    taosMemoryFreeClear(err);
    pHandle->db = rocksdb_open(opts, path, &err);
    if (err != NULL) {
      qError("failed to open rocksdb, path:%s, reason:%s", path, err);
      taosMemoryFreeClear(err);
      goto _EXIT;
    }
  } else {
    /*
      list all cf and get prefix
    */
    streamStateOpenBackendCf(pHandle, (char*)path, cfs, nCf);
  }
  if (cfs != NULL) {
    rocksdb_list_column_families_destroy(cfs, nCf);
  }
  qDebug("succ to init stream backend at %s, backend:%p", path, pHandle);

  return (void*)pHandle;
_EXIT:
  rocksdb_options_destroy(opts);
  rocksdb_cache_destroy(cache);
  rocksdb_env_destroy(env);
  taosThreadMutexDestroy(&pHandle->mutex);
  taosThreadMutexDestroy(&pHandle->cfMutex);
  taosHashCleanup(pHandle->cfInst);
  rocksdb_compactionfilterfactory_destroy(pHandle->filterFactory);
  tdListFree(pHandle->list);
  taosMemoryFree(pHandle);
  qDebug("failed to init stream backend at %s", path);
  return NULL;
}
void streamBackendCleanup(void* arg) {
  SBackendHandle* pHandle = (SBackendHandle*)arg;
  RocksdbCfInst** pIter = (RocksdbCfInst**)taosHashIterate(pHandle->cfInst, NULL);
  while (pIter != NULL) {
    RocksdbCfInst* inst = *pIter;
    destroyRocksdbCfInst(inst);
    taosHashIterate(pHandle->cfInst, pIter);
  }
  taosHashCleanup(pHandle->cfInst);

  if (pHandle->db) {
    char*                   err = NULL;
    rocksdb_flushoptions_t* flushOpt = rocksdb_flushoptions_create();
    rocksdb_flush(pHandle->db, flushOpt, &err);
    if (err != NULL) {
      qError("failed to flush db before streamBackend clean up, reason:%s", err);
      taosMemoryFree(err);
    }
    rocksdb_flushoptions_destroy(flushOpt);
    rocksdb_close(pHandle->db);
  }
  rocksdb_options_destroy(pHandle->dbOpt);
  rocksdb_env_destroy(pHandle->env);
  rocksdb_cache_destroy(pHandle->cache);

  SListNode* head = tdListPopHead(pHandle->list);
  while (head != NULL) {
    streamStateDestroyCompar(head->data);
    taosMemoryFree(head);
    head = tdListPopHead(pHandle->list);
  }

  tdListFree(pHandle->list);
  taosThreadMutexDestroy(&pHandle->mutex);

  taosThreadMutexDestroy(&pHandle->cfMutex);

  taosMemoryFree(pHandle);
  qDebug("destroy stream backend backend:%p", pHandle);
  return;
}
void streamBackendHandleCleanup(void* arg) {
  SBackendWrapper* wrapper = arg;
  bool             remove = false;

  qDebug("start to do-close backendwrapper %p, %s", wrapper, wrapper->idstr);
  if (wrapper->rocksdb == NULL) {
    return;
  }

  int cfLen = sizeof(ginitDict) / sizeof(ginitDict[0]);

  char* err = NULL;
  if (wrapper->remove) {
    for (int i = 0; i < cfLen; i++) {
      if (wrapper->pHandle[i] != NULL)
        rocksdb_drop_column_family(wrapper->rocksdb, ((rocksdb_column_family_handle_t**)wrapper->pHandle)[i], &err);
      if (err != NULL) {
        // qError("failed to create cf:%s_%s, reason:%s", wrapper->idstr, ginitDict[i].key, err);
        taosMemoryFreeClear(err);
      }
    }
  } else {
    rocksdb_flushoptions_t* flushOpt = rocksdb_flushoptions_create();
    for (int i = 0; i < cfLen; i++) {
      if (wrapper->pHandle[i] != NULL) rocksdb_flush_cf(wrapper->rocksdb, flushOpt, wrapper->pHandle[i], &err);
      if (err != NULL) {
        qError("failed to create cf:%s_%s, reason:%s", wrapper->idstr, ginitDict[i].key, err);
        taosMemoryFreeClear(err);
      }
    }
    rocksdb_flushoptions_destroy(flushOpt);
  }

  for (int i = 0; i < cfLen; i++) {
    if (wrapper->pHandle[i] != NULL) {
      rocksdb_column_family_handle_destroy(wrapper->pHandle[i]);
    }
  }
  taosMemoryFreeClear(wrapper->pHandle);
  for (int i = 0; i < cfLen; i++) {
    rocksdb_options_destroy(wrapper->cfOpts[i]);
    rocksdb_block_based_options_destroy(((RocksdbCfParam*)wrapper->param)[i].tableOpt);
  }

  if (remove) {
    streamBackendDelCompare(wrapper->pBackend, wrapper->pComparNode);
  }
  rocksdb_writeoptions_destroy(wrapper->writeOpts);
  wrapper->writeOpts = NULL;

  rocksdb_readoptions_destroy(wrapper->readOpts);
  wrapper->readOpts = NULL;
  taosMemoryFreeClear(wrapper->cfOpts);
  taosMemoryFreeClear(wrapper->param);

  taosThreadRwlockDestroy(&wrapper->rwLock);
  wrapper->rocksdb = NULL;
  taosReleaseRef(streamBackendId, wrapper->backendId);

  qDebug("end to do-close backendwrapper %p, %s", wrapper, wrapper->idstr);
  taosMemoryFree(wrapper);
  return;
}
SListNode* streamBackendAddCompare(void* backend, void* arg) {
  SBackendHandle* pHandle = (SBackendHandle*)backend;
  SListNode*      node = NULL;
  taosThreadMutexLock(&pHandle->mutex);
  node = tdListAdd(pHandle->list, arg);
  taosThreadMutexUnlock(&pHandle->mutex);
  return node;
}
void streamBackendDelCompare(void* backend, void* arg) {
  SBackendHandle* pHandle = (SBackendHandle*)backend;
  SListNode*      node = NULL;
  taosThreadMutexLock(&pHandle->mutex);
  node = tdListPopNode(pHandle->list, arg);
  taosThreadMutexUnlock(&pHandle->mutex);
  if (node) {
    streamStateDestroyCompar(node->data);
    taosMemoryFree(node);
  }
}
void        streamStateDestroy_rocksdb(SStreamState* pState, bool remove) { streamStateCloseBackend(pState, remove); }
static bool streamStateIterSeekAndValid(rocksdb_iterator_t* iter, char* buf, size_t len);

// |key|-----value------|
// |key|ttl|len|userData|

static rocksdb_iterator_t* streamStateIterCreate(SStreamState* pState, const char* cfName,
                                                 rocksdb_snapshot_t** snapshot, rocksdb_readoptions_t** readOpt);

int defaultKeyComp(void* state, const char* aBuf, size_t aLen, const char* bBuf, size_t bLen) {
  int ret = memcmp(aBuf, bBuf, aLen);
  if (ret == 0) {
    if (aLen < bLen)
      return -1;
    else if (aLen > bLen)
      return 1;
    else
      return 0;
  } else {
    return ret;
  }
}
int streamStateValueIsStale(char* vv) {
  int64_t ts = 0;
  taosDecodeFixedI64(vv, &ts);
  return (ts != 0 && ts < taosGetTimestampMs()) ? 1 : 0;
}
int iterValueIsStale(rocksdb_iterator_t* iter) {
  size_t len;
  char*  v = (char*)rocksdb_iter_value(iter, &len);
  return streamStateValueIsStale(v);
}
int defaultKeyEncode(void* k, char* buf) {
  int len = strlen((char*)k);
  memcpy(buf, (char*)k, len);
  return len;
}
int defaultKeyDecode(void* k, char* buf) {
  int len = strlen(buf);
  memcpy(k, buf, len);
  return len;
}
int defaultKeyToString(void* k, char* buf) {
  // just to debug
  return sprintf(buf, "key: %s", (char*)k);
}
//
//  SStateKey
//  |--groupid--|---ts------|--opNum----|
//  |--uint64_t-|-uint64_t--|--int64_t--|
//
//
//
int stateKeyDBComp(void* state, const char* aBuf, size_t aLen, const char* bBuf, size_t bLen) {
  SStateKey key1, key2;
  memset(&key1, 0, sizeof(key1));
  memset(&key2, 0, sizeof(key2));

  char* p1 = (char*)aBuf;
  char* p2 = (char*)bBuf;

  p1 = taosDecodeFixedU64(p1, &key1.key.groupId);
  p2 = taosDecodeFixedU64(p2, &key2.key.groupId);

  p1 = taosDecodeFixedI64(p1, &key1.key.ts);
  p2 = taosDecodeFixedI64(p2, &key2.key.ts);

  taosDecodeFixedI64(p1, &key1.opNum);
  taosDecodeFixedI64(p2, &key2.opNum);

  return stateKeyCmpr(&key1, sizeof(key1), &key2, sizeof(key2));
}

int stateKeyEncode(void* k, char* buf) {
  SStateKey* key = k;
  int        len = 0;
  len += taosEncodeFixedU64((void**)&buf, key->key.groupId);
  len += taosEncodeFixedI64((void**)&buf, key->key.ts);
  len += taosEncodeFixedI64((void**)&buf, key->opNum);
  return len;
}
int stateKeyDecode(void* k, char* buf) {
  SStateKey* key = k;
  int        len = 0;
  char*      p = buf;
  p = taosDecodeFixedU64(p, &key->key.groupId);
  p = taosDecodeFixedI64(p, &key->key.ts);
  p = taosDecodeFixedI64(p, &key->opNum);
  return p - buf;
}

int stateKeyToString(void* k, char* buf) {
  SStateKey* key = k;
  int        n = 0;
  n += sprintf(buf + n, "[groupId:%" PRId64 ",", key->key.groupId);
  n += sprintf(buf + n, "ts:%" PRIi64 ",", key->key.ts);
  n += sprintf(buf + n, "opNum:%" PRIi64 "]", key->opNum);
  return n;
}

//
// SStateSessionKey
//  |-----------SSessionKey----------|
//  |-----STimeWindow-----|
//  |---skey--|---ekey----|--groupId-|--opNum--|
//  |---int64-|--int64_t--|--uint64--|--int64_t|
// |
//
int stateSessionKeyDBComp(void* state, const char* aBuf, size_t aLen, const char* bBuf, size_t bLen) {
  SStateSessionKey w1, w2;
  memset(&w1, 0, sizeof(w1));
  memset(&w2, 0, sizeof(w2));

  char* p1 = (char*)aBuf;
  char* p2 = (char*)bBuf;

  p1 = taosDecodeFixedI64(p1, &w1.key.win.skey);
  p2 = taosDecodeFixedI64(p2, &w2.key.win.skey);

  p1 = taosDecodeFixedI64(p1, &w1.key.win.ekey);
  p2 = taosDecodeFixedI64(p2, &w2.key.win.ekey);

  p1 = taosDecodeFixedU64(p1, &w1.key.groupId);
  p2 = taosDecodeFixedU64(p2, &w2.key.groupId);

  p1 = taosDecodeFixedI64(p1, &w1.opNum);
  p2 = taosDecodeFixedI64(p2, &w2.opNum);

  return stateSessionKeyCmpr(&w1, sizeof(w1), &w2, sizeof(w2));
}
int stateSessionKeyEncode(void* ses, char* buf) {
  SStateSessionKey* sess = ses;
  int               len = 0;
  len += taosEncodeFixedI64((void**)&buf, sess->key.win.skey);
  len += taosEncodeFixedI64((void**)&buf, sess->key.win.ekey);
  len += taosEncodeFixedU64((void**)&buf, sess->key.groupId);
  len += taosEncodeFixedI64((void**)&buf, sess->opNum);
  return len;
}
int stateSessionKeyDecode(void* ses, char* buf) {
  SStateSessionKey* sess = ses;
  int               len = 0;

  char* p = buf;
  p = taosDecodeFixedI64(p, &sess->key.win.skey);
  p = taosDecodeFixedI64(p, &sess->key.win.ekey);
  p = taosDecodeFixedU64(p, &sess->key.groupId);
  p = taosDecodeFixedI64(p, &sess->opNum);
  return p - buf;
}
int stateSessionKeyToString(void* k, char* buf) {
  SStateSessionKey* key = k;
  int               n = 0;
  n += sprintf(buf + n, "[skey:%" PRIi64 ",", key->key.win.skey);
  n += sprintf(buf + n, "ekey:%" PRIi64 ",", key->key.win.ekey);
  n += sprintf(buf + n, "groupId:%" PRIu64 ",", key->key.groupId);
  n += sprintf(buf + n, "opNum:%" PRIi64 "]", key->opNum);
  return n;
}

/**
 *  SWinKey
 *  |------groupId------|-----ts------|
 *  |------uint64-------|----int64----|
 */
int winKeyDBComp(void* state, const char* aBuf, size_t aLen, const char* bBuf, size_t bLen) {
  SWinKey w1, w2;
  memset(&w1, 0, sizeof(w1));
  memset(&w2, 0, sizeof(w2));

  char* p1 = (char*)aBuf;
  char* p2 = (char*)bBuf;

  p1 = taosDecodeFixedU64(p1, &w1.groupId);
  p2 = taosDecodeFixedU64(p2, &w2.groupId);

  p1 = taosDecodeFixedI64(p1, &w1.ts);
  p2 = taosDecodeFixedI64(p2, &w2.ts);

  return winKeyCmpr(&w1, sizeof(w1), &w2, sizeof(w2));
}

int winKeyEncode(void* k, char* buf) {
  SWinKey* key = k;
  int      len = 0;
  len += taosEncodeFixedU64((void**)&buf, key->groupId);
  len += taosEncodeFixedI64((void**)&buf, key->ts);
  return len;
}

int winKeyDecode(void* k, char* buf) {
  SWinKey* key = k;
  int      len = 0;
  char*    p = buf;
  p = taosDecodeFixedU64(p, &key->groupId);
  p = taosDecodeFixedI64(p, &key->ts);
  return len;
}

int winKeyToString(void* k, char* buf) {
  SWinKey* key = k;
  int      n = 0;
  n += sprintf(buf + n, "[groupId:%" PRIu64 ",", key->groupId);
  n += sprintf(buf + n, "ts:%" PRIi64 "]", key->ts);
  return n;
}
/*
 * STupleKey
 * |---groupId---|---ts---|---exprIdx---|
 * |---uint64--|---int64--|---int32-----|
 */
int tupleKeyDBComp(void* state, const char* aBuf, size_t aLen, const char* bBuf, size_t bLen) {
  STupleKey w1, w2;
  memset(&w1, 0, sizeof(w1));
  memset(&w2, 0, sizeof(w2));

  char* p1 = (char*)aBuf;
  char* p2 = (char*)bBuf;

  p1 = taosDecodeFixedU64(p1, &w1.groupId);
  p2 = taosDecodeFixedU64(p2, &w2.groupId);

  p1 = taosDecodeFixedI64(p1, &w1.ts);
  p2 = taosDecodeFixedI64(p2, &w2.ts);

  p1 = taosDecodeFixedI32(p1, &w1.exprIdx);
  p2 = taosDecodeFixedI32(p2, &w2.exprIdx);

  return STupleKeyCmpr(&w1, sizeof(w1), &w2, sizeof(w2));
}

int tupleKeyEncode(void* k, char* buf) {
  STupleKey* key = k;
  int        len = 0;
  len += taosEncodeFixedU64((void**)&buf, key->groupId);
  len += taosEncodeFixedI64((void**)&buf, key->ts);
  len += taosEncodeFixedI32((void**)&buf, key->exprIdx);
  return len;
}
int tupleKeyDecode(void* k, char* buf) {
  STupleKey* key = k;
  int        len = 0;
  char*      p = buf;
  p = taosDecodeFixedU64(p, &key->groupId);
  p = taosDecodeFixedI64(p, &key->ts);
  p = taosDecodeFixedI32(p, &key->exprIdx);
  return len;
}
int tupleKeyToString(void* k, char* buf) {
  int        n = 0;
  STupleKey* key = k;
  n += sprintf(buf + n, "[groupId:%" PRIu64 ",", key->groupId);
  n += sprintf(buf + n, "ts:%" PRIi64 ",", key->ts);
  n += sprintf(buf + n, "exprIdx:%d]", key->exprIdx);
  return n;
}

int parKeyDBComp(void* state, const char* aBuf, size_t aLen, const char* bBuf, size_t bLen) {
  int64_t w1, w2;
  memset(&w1, 0, sizeof(w1));
  memset(&w2, 0, sizeof(w2));
  char* p1 = (char*)aBuf;
  char* p2 = (char*)bBuf;

  taosDecodeFixedI64(p1, &w1);
  taosDecodeFixedI64(p2, &w2);
  if (w1 == w2) {
    return 0;
  } else {
    return w1 < w2 ? -1 : 1;
  }
}
int parKeyEncode(void* k, char* buf) {
  int64_t* groupid = k;
  int      len = taosEncodeFixedI64((void**)&buf, *groupid);
  return len;
}
int parKeyDecode(void* k, char* buf) {
  char*    p = buf;
  int64_t* groupid = k;

  p = taosDecodeFixedI64(p, groupid);
  return p - buf;
}
int parKeyToString(void* k, char* buf) {
  int64_t* key = k;
  int      n = 0;
  n = sprintf(buf + n, "[groupId:%" PRIi64 "]", *key);
  return n;
}
int stremaValueEncode(void* k, char* buf) {
  int           len = 0;
  SStreamValue* key = k;
  len += taosEncodeFixedI64((void**)&buf, key->unixTimestamp);
  len += taosEncodeFixedI32((void**)&buf, key->len);
  len += taosEncodeBinary((void**)&buf, key->data, key->len);
  return len;
}
int streamValueDecode(void* k, char* buf) {
  SStreamValue* key = k;
  char*         p = buf;
  p = taosDecodeFixedI64(p, &key->unixTimestamp);
  p = taosDecodeFixedI32(p, &key->len);
  p = taosDecodeBinary(p, (void**)&key->data, key->len);
  return p - buf;
}
int32_t streamValueToString(void* k, char* buf) {
  SStreamValue* key = k;
  int           n = 0;
  n += sprintf(buf + n, "[unixTimestamp:%" PRIi64 ",", key->unixTimestamp);
  n += sprintf(buf + n, "len:%d,", key->len);
  n += sprintf(buf + n, "data:%s]", key->data);
  return n;
}

/*1: stale, 0: no stale*/
int32_t streaValueIsStale(void* k, int64_t ts) {
  SStreamValue* key = k;
  if (key->unixTimestamp < ts) {
    return 1;
  }
  return 0;
}

void destroyFunc(void* arg) {
  (void)arg;
  return;
}

int32_t encodeValueFunc(void* value, int32_t vlen, int64_t ttl, char** dest) {
  SStreamValue key = {.unixTimestamp = ttl, .len = vlen, .data = (char*)(value)};
  int32_t      len = 0;
  if (*dest == NULL) {
    char* p = taosMemoryCalloc(1, sizeof(int64_t) + sizeof(int32_t) + key.len);
    char* buf = p;
    len += taosEncodeFixedI64((void**)&buf, key.unixTimestamp);
    len += taosEncodeFixedI32((void**)&buf, key.len);
    len += taosEncodeBinary((void**)&buf, (char*)value, vlen);
    *dest = p;
  } else {
    char* buf = *dest;
    len += taosEncodeFixedI64((void**)&buf, key.unixTimestamp);
    len += taosEncodeFixedI32((void**)&buf, key.len);
    len += taosEncodeBinary((void**)&buf, (char*)value, vlen);
  }
  return len;
}
/*
 *  ret >= 0 : found valid value
 *  ret < 0 : error or timeout
 */
int32_t decodeValueFunc(void* value, int32_t vlen, int64_t* ttl, char** dest) {
  SStreamValue key = {0};
  char*        p = value;
  if (streamStateValueIsStale(p)) {
    *dest = NULL;
    return -1;
  }
  p = taosDecodeFixedI64(p, &key.unixTimestamp);
  p = taosDecodeFixedI32(p, &key.len);
  if (vlen != (sizeof(int64_t) + sizeof(int32_t) + key.len)) {
    if (dest != NULL) *dest = NULL;
    qError("vlen: %d, read len: %d", vlen, key.len);
    return -1;
  }

  if (key.len == 0) {
    key.data = NULL;
  } else {
    p = taosDecodeBinary(p, (void**)&(key.data), key.len);
  }

  if (ttl != NULL) {
    int64_t now = taosGetTimestampMs();
    *ttl = key.unixTimestamp == 0 ? 0 : key.unixTimestamp - now;
  }
  if (dest != NULL) {
    *dest = key.data;
  } else {
    taosMemoryFree(key.data);
  }
  return key.len;
}

const char* compareDefaultName(void* arg) {
  (void)arg;
  return ginitDict[0].key;
}
const char* compareStateName(void* arg) {
  (void)arg;
  return ginitDict[1].key;
}
const char* compareWinKeyName(void* arg) {
  (void)arg;
  return ginitDict[2].key;
}
const char* compareSessionKeyName(void* arg) {
  (void)arg;
  return ginitDict[3].key;
}
const char* compareFuncKeyName(void* arg) {
  (void)arg;
  return ginitDict[4].key;
}
const char* compareParKeyName(void* arg) {
  (void)arg;
  return ginitDict[5].key;
}
const char* comparePartagKeyName(void* arg) {
  (void)arg;
  return ginitDict[6].key;
}

void destroyCompactFilteFactory(void* arg) {
  if (arg == NULL) return;
}
const char* compactFilteFactoryName(void* arg) {
  SCompactFilteFactory* state = arg;
  return "stream_compact_filter";
}

void          destroyCompactFilte(void* arg) { (void)arg; }
unsigned char compactFilte(void* arg, int level, const char* key, size_t klen, const char* val, size_t vlen,
                           char** newval, size_t* newvlen, unsigned char* value_changed) {
  return streamStateValueIsStale((char*)val) ? 1 : 0;
}
const char* compactFilteName(void* arg) { return "stream_filte"; }

rocksdb_compactionfilter_t* compactFilteFactoryCreateFilter(void* arg, rocksdb_compactionfiltercontext_t* ctx) {
  SCompactFilteFactory*       state = arg;
  rocksdb_compactionfilter_t* filter =
      rocksdb_compactionfilter_create(NULL, destroyCompactFilte, compactFilte, compactFilteName);
  return filter;
}

void destroyRocksdbCfInst(RocksdbCfInst* inst) {
  int cfLen = sizeof(ginitDict) / sizeof(ginitDict[0]);
  for (int i = 0; i < cfLen; i++) {
    if (inst->pHandle[i]) rocksdb_column_family_handle_destroy((inst->pHandle)[i]);
  }

  rocksdb_writeoptions_destroy(inst->wOpt);
  inst->wOpt = NULL;

  rocksdb_readoptions_destroy(inst->rOpt);
  taosMemoryFree(inst->cfOpt);
  taosMemoryFreeClear(inst->param);
  taosMemoryFree(inst);
}

int32_t streamStateOpenBackendCf(void* backend, char* name, char** cfs, int32_t nCf) {
  SBackendHandle* handle = backend;
  char*           err = NULL;
  int64_t         streamId;
  int32_t         taskId, dummy = 0;
  char            suffix[64] = {0};

  rocksdb_options_t**              cfOpts = taosMemoryCalloc(nCf, sizeof(rocksdb_options_t*));
  RocksdbCfParam*                  params = taosMemoryCalloc(nCf, sizeof(RocksdbCfParam*));
  rocksdb_comparator_t**           pCompare = taosMemoryCalloc(nCf, sizeof(rocksdb_comparator_t**));
  rocksdb_column_family_handle_t** cfHandle = taosMemoryCalloc(nCf, sizeof(rocksdb_column_family_handle_t*));

  for (int i = 0; i < nCf; i++) {
    char* cf = cfs[i];
    char  funcname[64] = {0};
    cfOpts[i] = rocksdb_options_create_copy(handle->dbOpt);
    if (i == 0) continue;
    if (3 == sscanf(cf, "0x%" PRIx64 "-%d_%s", &streamId, &taskId, funcname)) {
      rocksdb_block_based_table_options_t* tableOpt = rocksdb_block_based_options_create();
      rocksdb_block_based_options_set_block_cache(tableOpt, handle->cache);

      rocksdb_filterpolicy_t* filter = rocksdb_filterpolicy_create_bloom(15);
      rocksdb_block_based_options_set_filter_policy(tableOpt, filter);

      rocksdb_options_set_block_based_table_factory((rocksdb_options_t*)cfOpts[i], tableOpt);
      params[i].tableOpt = tableOpt;

      int      idx = streamStateGetCfIdx(NULL, funcname);
      SCfInit* cfPara = &ginitDict[idx];

      rocksdb_comparator_t* compare =
          rocksdb_comparator_create(NULL, cfPara->detroyFunc, cfPara->cmpFunc, cfPara->cmpName);
      rocksdb_options_set_comparator((rocksdb_options_t*)cfOpts[i], compare);
      pCompare[i] = compare;
    }
  }
  rocksdb_t* db = rocksdb_open_column_families(handle->dbOpt, name, nCf, (const char* const*)cfs,
                                               (const rocksdb_options_t* const*)cfOpts, cfHandle, &err);
  if (err != NULL) {
    qError("failed to open rocksdb cf, reason:%s", err);
    taosMemoryFree(err);
  } else {
    qDebug("succ to open rocksdb cf");
  }
  // close default cf
  if (((rocksdb_column_family_handle_t**)cfHandle)[0] != 0) rocksdb_column_family_handle_destroy(cfHandle[0]);
  rocksdb_options_destroy(cfOpts[0]);
  handle->db = db;

  static int32_t cfLen = sizeof(ginitDict) / sizeof(ginitDict[0]);
  for (int i = 0; i < nCf; i++) {
    char* cf = cfs[i];
    if (i == 0) continue;
    char funcname[64] = {0};
    if (3 == sscanf(cf, "0x%" PRIx64 "-%d_%s", &streamId, &taskId, funcname)) {
      char idstr[128] = {0};
      sprintf(idstr, "0x%" PRIx64 "-%d", streamId, taskId);

      int idx = streamStateGetCfIdx(NULL, funcname);

      RocksdbCfInst*  inst = NULL;
      RocksdbCfInst** pInst = taosHashGet(handle->cfInst, idstr, strlen(idstr) + 1);
      if (pInst == NULL || *pInst == NULL) {
        inst = taosMemoryCalloc(1, sizeof(RocksdbCfInst));
        inst->pHandle = taosMemoryCalloc(cfLen, sizeof(rocksdb_column_family_handle_t*));
        inst->cfOpt = taosMemoryCalloc(cfLen, sizeof(rocksdb_options_t*));
        inst->wOpt = rocksdb_writeoptions_create();
        inst->rOpt = rocksdb_readoptions_create();
        inst->param = taosMemoryCalloc(cfLen, sizeof(RocksdbCfParam));
        inst->pBackend = handle;
        inst->db = db;
        inst->pCompares = taosMemoryCalloc(cfLen, sizeof(rocksdb_comparator_t*));

        inst->dbOpt = handle->dbOpt;
        rocksdb_writeoptions_disable_WAL(inst->wOpt, 1);
        taosHashPut(handle->cfInst, idstr, strlen(idstr) + 1, &inst, sizeof(void*));
      } else {
        inst = *pInst;
      }
      inst->cfOpt[idx] = cfOpts[i];
      inst->pCompares[idx] = pCompare[i];
      memcpy(&(inst->param[idx]), &(params[i]), sizeof(RocksdbCfParam));
      inst->pHandle[idx] = cfHandle[i];
    }
  }
  void** pIter = taosHashIterate(handle->cfInst, NULL);
  while (pIter) {
    RocksdbCfInst* inst = *pIter;

    for (int i = 0; i < cfLen; i++) {
      if (inst->cfOpt[i] == NULL) {
        rocksdb_options_t*                   opt = rocksdb_options_create_copy(handle->dbOpt);
        rocksdb_block_based_table_options_t* tableOpt = rocksdb_block_based_options_create();
        rocksdb_block_based_options_set_block_cache(tableOpt, handle->cache);

        rocksdb_filterpolicy_t* filter = rocksdb_filterpolicy_create_bloom(15);
        rocksdb_block_based_options_set_filter_policy(tableOpt, filter);

        rocksdb_options_set_block_based_table_factory((rocksdb_options_t*)opt, tableOpt);

        SCfInit* cfPara = &ginitDict[i];

        rocksdb_comparator_t* compare =
            rocksdb_comparator_create(NULL, cfPara->detroyFunc, cfPara->cmpFunc, cfPara->cmpName);
        rocksdb_options_set_comparator((rocksdb_options_t*)opt, compare);

        inst->pCompares[i] = compare;
        inst->cfOpt[i] = opt;
        inst->param[i].tableOpt = tableOpt;
      }
    }
    SCfComparator compare = {.comp = inst->pCompares, .numOfComp = cfLen};
    inst->pCompareNode = streamBackendAddCompare(handle, &compare);
    pIter = taosHashIterate(handle->cfInst, pIter);
  }

  taosMemoryFree(cfHandle);
  taosMemoryFree(pCompare);
  taosMemoryFree(params);
  taosMemoryFree(cfOpts);
  return 0;
}
int streamStateOpenBackend(void* backend, SStreamState* pState) {
  qInfo("start to open state %p on backend %p 0x%" PRIx64 "-%d", pState, backend, pState->streamId, pState->taskId);
  taosAcquireRef(streamBackendId, pState->streamBackendRid);
  SBackendHandle*  handle = backend;
  SBackendWrapper* pBackendWrapper = taosMemoryCalloc(1, sizeof(SBackendWrapper));
  taosThreadMutexLock(&handle->cfMutex);

  RocksdbCfInst** ppInst = taosHashGet(handle->cfInst, pState->pTdbState->idstr, strlen(pState->pTdbState->idstr) + 1);
  if (ppInst != NULL && *ppInst != NULL) {
    RocksdbCfInst* inst = *ppInst;
    pBackendWrapper->rocksdb = inst->db;
    pBackendWrapper->pHandle = (void**)inst->pHandle;
    pBackendWrapper->writeOpts = inst->wOpt;
    pBackendWrapper->readOpts = inst->rOpt;
    pBackendWrapper->cfOpts = (void**)(inst->cfOpt);
    pBackendWrapper->dbOpt = handle->dbOpt;
    pBackendWrapper->param = inst->param;
    pBackendWrapper->pBackend = handle;
    pBackendWrapper->pComparNode = inst->pCompareNode;
    taosThreadMutexUnlock(&handle->cfMutex);
    pBackendWrapper->backendId = pState->streamBackendRid;
    memcpy(pBackendWrapper->idstr, pState->pTdbState->idstr, sizeof(pState->pTdbState->idstr));

    int64_t id = taosAddRef(streamBackendWrapperId, pBackendWrapper);
    pState->pTdbState->backendWrapperId = id;
    pState->pTdbState->pBackendWrapper = pBackendWrapper;
    qInfo("succ to open state %p on backendWrapper, %p, %s", pState, pBackendWrapper, pBackendWrapper->idstr);
    return 0;
  }
  taosThreadMutexUnlock(&handle->cfMutex);

  char* err = NULL;
  int   cfLen = sizeof(ginitDict) / sizeof(ginitDict[0]);

  RocksdbCfParam*           param = taosMemoryCalloc(cfLen, sizeof(RocksdbCfParam));
  const rocksdb_options_t** cfOpt = taosMemoryCalloc(cfLen, sizeof(rocksdb_options_t*));
  for (int i = 0; i < cfLen; i++) {
    cfOpt[i] = rocksdb_options_create_copy(handle->dbOpt);
    // refactor later
    rocksdb_block_based_table_options_t* tableOpt = rocksdb_block_based_options_create();
    rocksdb_block_based_options_set_block_cache(tableOpt, handle->cache);

    rocksdb_filterpolicy_t* filter = rocksdb_filterpolicy_create_bloom(15);
    rocksdb_block_based_options_set_filter_policy(tableOpt, filter);

    rocksdb_options_set_block_based_table_factory((rocksdb_options_t*)cfOpt[i], tableOpt);

    param[i].tableOpt = tableOpt;
  };

  rocksdb_comparator_t** pCompare = taosMemoryCalloc(cfLen, sizeof(rocksdb_comparator_t**));
  for (int i = 0; i < cfLen; i++) {
    SCfInit* cf = &ginitDict[i];

    rocksdb_comparator_t* compare = rocksdb_comparator_create(NULL, cf->detroyFunc, cf->cmpFunc, cf->cmpName);
    rocksdb_options_set_comparator((rocksdb_options_t*)cfOpt[i], compare);
    pCompare[i] = compare;
  }
  rocksdb_column_family_handle_t** cfHandle = taosMemoryCalloc(cfLen, sizeof(rocksdb_column_family_handle_t*));
  pBackendWrapper->rocksdb = handle->db;
  pBackendWrapper->pHandle = (void**)cfHandle;
  pBackendWrapper->writeOpts = rocksdb_writeoptions_create();
  pBackendWrapper->readOpts = rocksdb_readoptions_create();
  pBackendWrapper->cfOpts = (void**)cfOpt;
  pBackendWrapper->dbOpt = handle->dbOpt;
  pBackendWrapper->param = param;
  pBackendWrapper->pBackend = handle;
  pBackendWrapper->backendId = pState->streamBackendRid;
  taosThreadRwlockInit(&pBackendWrapper->rwLock, NULL);
  SCfComparator compare = {.comp = pCompare, .numOfComp = cfLen};
  pBackendWrapper->pComparNode = streamBackendAddCompare(handle, &compare);
  rocksdb_writeoptions_disable_WAL(pBackendWrapper->writeOpts, 1);
  memcpy(pBackendWrapper->idstr, pState->pTdbState->idstr, sizeof(pState->pTdbState->idstr));

  int64_t id = taosAddRef(streamBackendWrapperId, pBackendWrapper);
  pState->pTdbState->backendWrapperId = id;
  pState->pTdbState->pBackendWrapper = pBackendWrapper;
  qInfo("succ to open state %p on backendWrapper, %p, %s", pState, pBackendWrapper, pBackendWrapper->idstr);
  return 0;
}

void streamStateCloseBackend(SStreamState* pState, bool remove) {
  SBackendWrapper* wrapper = pState->pTdbState->pBackendWrapper;
  SBackendHandle*  pHandle = wrapper->pBackend;
  taosThreadMutexLock(&pHandle->cfMutex);
  RocksdbCfInst** ppInst = taosHashGet(pHandle->cfInst, wrapper->idstr, strlen(pState->pTdbState->idstr) + 1);
  if (ppInst != NULL && *ppInst != NULL) {
    RocksdbCfInst* inst = *ppInst;
    taosMemoryFree(inst);
    taosHashRemove(pHandle->cfInst, pState->pTdbState->idstr, strlen(pState->pTdbState->idstr) + 1);
  }
  taosThreadMutexUnlock(&pHandle->cfMutex);
  char* status[] = {"close", "drop"};
  qInfo("start to close %s state %p on backendWrapper %p %s", status[remove == false ? 0 : 1], pState, wrapper,
        wrapper->idstr);
  taosReleaseRef(streamBackendWrapperId, pState->pTdbState->backendWrapperId);
}
void streamStateDestroyCompar(void* arg) {
  SCfComparator* comp = (SCfComparator*)arg;
  for (int i = 0; i < comp->numOfComp; i++) {
    if (comp->comp[i]) rocksdb_comparator_destroy(comp->comp[i]);
  }
  taosMemoryFree(comp->comp);
}

int streamStateGetCfIdx(SStreamState* pState, const char* funcName) {
  int    idx = -1;
  size_t len = strlen(funcName);
  for (int i = 0; i < sizeof(ginitDict) / sizeof(ginitDict[0]); i++) {
    if (len == ginitDict[i].len && strncmp(funcName, ginitDict[i].key, strlen(funcName)) == 0) {
      idx = i;
      break;
    }
  }
  SBackendWrapper* wrapper = pState->pTdbState->pBackendWrapper;
  if (pState != NULL && idx != -1) {
    rocksdb_column_family_handle_t* cf = NULL;
    taosThreadRwlockRdlock(&wrapper->rwLock);
    cf = wrapper->pHandle[idx];
    taosThreadRwlockUnlock(&wrapper->rwLock);
    if (cf == NULL) {
      char buf[128] = {0};
      GEN_COLUMN_FAMILY_NAME(buf, wrapper->idstr, ginitDict[idx].key);
      char* err = NULL;

      taosThreadRwlockWrlock(&wrapper->rwLock);
      cf = rocksdb_create_column_family(wrapper->rocksdb, wrapper->cfOpts[idx], buf, &err);
      if (err != NULL) {
        idx = -1;
        qError("failed to to open cf, %p %s_%s, reason:%s", pState, wrapper->idstr, funcName, err);
        taosMemoryFree(err);
      } else {
        wrapper->pHandle[idx] = cf;
      }
      taosThreadRwlockUnlock(&wrapper->rwLock);
    }
  }

  return idx;
}
bool streamStateIterSeekAndValid(rocksdb_iterator_t* iter, char* buf, size_t len) {
  rocksdb_iter_seek(iter, buf, len);
  if (!rocksdb_iter_valid(iter)) {
    rocksdb_iter_seek_for_prev(iter, buf, len);
    if (!rocksdb_iter_valid(iter)) {
      return false;
    }
  }
  return true;
}
rocksdb_iterator_t* streamStateIterCreate(SStreamState* pState, const char* cfName, rocksdb_snapshot_t** snapshot,
                                          rocksdb_readoptions_t** readOpt) {
  int idx = streamStateGetCfIdx(pState, cfName);

  SBackendWrapper* wrapper = pState->pTdbState->pBackendWrapper;
  if (snapshot != NULL) {
    *snapshot = (rocksdb_snapshot_t*)rocksdb_create_snapshot(wrapper->rocksdb);
  }
  rocksdb_readoptions_t* rOpt = rocksdb_readoptions_create();
  *readOpt = rOpt;

  rocksdb_readoptions_set_snapshot(rOpt, *snapshot);
  rocksdb_readoptions_set_fill_cache(rOpt, 0);

  return rocksdb_create_iterator_cf(wrapper->rocksdb, rOpt, ((rocksdb_column_family_handle_t**)wrapper->pHandle)[idx]);
}

#define STREAM_STATE_PUT_ROCKSDB(pState, funcname, key, value, vLen)                                                   \
  do {                                                                                                                 \
    code = 0;                                                                                                          \
    char  buf[128] = {0};                                                                                              \
    char* err = NULL;                                                                                                  \
    int   i = streamStateGetCfIdx(pState, funcname);                                                                   \
    if (i < 0) {                                                                                                       \
      qWarn("streamState failed to get cf name: %s", funcname);                                                        \
      code = -1;                                                                                                       \
      break;                                                                                                           \
    }                                                                                                                  \
    SBackendWrapper* wrapper = pState->pTdbState->pBackendWrapper;                                                     \
    char             toString[128] = {0};                                                                              \
    if (qDebugFlag & DEBUG_TRACE) ginitDict[i].toStrFunc((void*)key, toString);                                        \
    int32_t                         klen = ginitDict[i].enFunc((void*)key, buf);                                       \
    rocksdb_column_family_handle_t* pHandle = ((rocksdb_column_family_handle_t**)wrapper->pHandle)[ginitDict[i].idx];  \
    rocksdb_t*                      db = wrapper->rocksdb;                                                             \
    rocksdb_writeoptions_t*         opts = wrapper->writeOpts;                                                         \
    char*                           ttlV = NULL;                                                                       \
    int32_t                         ttlVLen = ginitDict[i].enValueFunc((char*)value, vLen, 0, &ttlV);                  \
    rocksdb_put_cf(db, opts, pHandle, (const char*)buf, klen, (const char*)ttlV, (size_t)ttlVLen, &err);               \
    if (err != NULL) {                                                                                                 \
      taosMemoryFree(err);                                                                                             \
      qError("streamState str: %s failed to write to %s, err: %s", toString, funcname, err);                           \
      code = -1;                                                                                                       \
    } else {                                                                                                           \
      qTrace("streamState str:%s succ to write to %s, rowValLen:%d, ttlValLen:%d", toString, funcname, vLen, ttlVLen); \
    }                                                                                                                  \
    taosMemoryFree(ttlV);                                                                                              \
  } while (0);

#define STREAM_STATE_GET_ROCKSDB(pState, funcname, key, pVal, vLen)                                                   \
  do {                                                                                                                \
    code = 0;                                                                                                         \
    char  buf[128] = {0};                                                                                             \
    char* err = NULL;                                                                                                 \
    int   i = streamStateGetCfIdx(pState, funcname);                                                                  \
    if (i < 0) {                                                                                                      \
      qWarn("streamState failed to get cf name: %s", funcname);                                                       \
      code = -1;                                                                                                      \
      break;                                                                                                          \
    }                                                                                                                 \
    SBackendWrapper* wrapper = pState->pTdbState->pBackendWrapper;                                                    \
    char             toString[128] = {0};                                                                             \
    if (qDebugFlag & DEBUG_TRACE) ginitDict[i].toStrFunc((void*)key, toString);                                       \
    int32_t                         klen = ginitDict[i].enFunc((void*)key, buf);                                      \
    rocksdb_column_family_handle_t* pHandle = ((rocksdb_column_family_handle_t**)wrapper->pHandle)[ginitDict[i].idx]; \
    rocksdb_t*                      db = wrapper->rocksdb;                                                            \
    rocksdb_readoptions_t*          opts = wrapper->readOpts;                                                         \
    size_t                          len = 0;                                                                          \
    char* val = rocksdb_get_cf(db, opts, pHandle, (const char*)buf, klen, (size_t*)&len, &err);                       \
    if (val == NULL || len == 0) {                                                                                    \
      if (err == NULL) {                                                                                              \
        qTrace("streamState str: %s failed to read from %s_%s, err: not exist", toString, wrapper->idstr, funcname);  \
      } else {                                                                                                        \
        qError("streamState str: %s failed to read from %s_%s, err: %s", toString, wrapper->idstr, funcname, err);    \
        taosMemoryFreeClear(err);                                                                                     \
      }                                                                                                               \
      code = -1;                                                                                                      \
    } else {                                                                                                          \
      char*   p = NULL;                                                                                               \
      int32_t tlen = ginitDict[i].deValueFunc(val, len, NULL, (char**)pVal);                                          \
      if (tlen <= 0) {                                                                                                \
        qError("streamState str: %s failed to read from %s_%s, err: already ttl ", toString, wrapper->idstr,          \
               funcname);                                                                                             \
        code = -1;                                                                                                    \
      } else {                                                                                                        \
        qTrace("streamState str: %s succ to read from %s_%s, valLen:%d", toString, wrapper->idstr, funcname, tlen);   \
      }                                                                                                               \
      taosMemoryFree(val);                                                                                            \
      if (vLen != NULL) *vLen = tlen;                                                                                 \
    }                                                                                                                 \
    if (code == 0) qDebug("streamState str: %s succ to read from %s_%s", toString, wrapper->idstr, funcname);         \
  } while (0);

#define STREAM_STATE_DEL_ROCKSDB(pState, funcname, key)                                                               \
  do {                                                                                                                \
    code = 0;                                                                                                         \
    char  buf[128] = {0};                                                                                             \
    char* err = NULL;                                                                                                 \
    int   i = streamStateGetCfIdx(pState, funcname);                                                                  \
    if (i < 0) {                                                                                                      \
      qWarn("streamState failed to get cf name: %s_%s", pState->pTdbState->idstr, funcname);                          \
      code = -1;                                                                                                      \
      break;                                                                                                          \
    }                                                                                                                 \
    SBackendWrapper* wrapper = pState->pTdbState->pBackendWrapper;                                                    \
    char             toString[128] = {0};                                                                             \
    if (qDebugFlag & DEBUG_TRACE) ginitDict[i].toStrFunc((void*)key, toString);                                       \
    int32_t                         klen = ginitDict[i].enFunc((void*)key, buf);                                      \
    rocksdb_column_family_handle_t* pHandle = ((rocksdb_column_family_handle_t**)wrapper->pHandle)[ginitDict[i].idx]; \
    rocksdb_t*                      db = wrapper->rocksdb;                                                            \
    rocksdb_writeoptions_t*         opts = wrapper->writeOpts;                                                        \
    rocksdb_delete_cf(db, opts, pHandle, (const char*)buf, klen, &err);                                               \
    if (err != NULL) {                                                                                                \
      qError("streamState str: %s failed to del from %s_%s, err: %s", toString, wrapper->idstr, funcname, err);       \
      taosMemoryFree(err);                                                                                            \
      code = -1;                                                                                                      \
    } else {                                                                                                          \
      qTrace("streamState str: %s succ to del from %s_%s", toString, wrapper->idstr, funcname);                       \
    }                                                                                                                 \
  } while (0);

// state cf
int32_t streamStatePut_rocksdb(SStreamState* pState, const SWinKey* key, const void* value, int32_t vLen) {
  int code = 0;

  SStateKey sKey = {.key = *key, .opNum = pState->number};
  STREAM_STATE_PUT_ROCKSDB(pState, "state", &sKey, (void*)value, vLen);
  return code;
}
int32_t streamStateGet_rocksdb(SStreamState* pState, const SWinKey* key, void** pVal, int32_t* pVLen) {
  int       code = 0;
  SStateKey sKey = {.key = *key, .opNum = pState->number};
  STREAM_STATE_GET_ROCKSDB(pState, "state", &sKey, pVal, pVLen);
  return code;
}
int32_t streamStateDel_rocksdb(SStreamState* pState, const SWinKey* key) {
  int       code = 0;
  SStateKey sKey = {.key = *key, .opNum = pState->number};
  STREAM_STATE_DEL_ROCKSDB(pState, "state", &sKey);
  return code;
}
int32_t streamStateClear_rocksdb(SStreamState* pState) {
  qDebug("streamStateClear_rocksdb");

  SBackendWrapper* wrapper = pState->pTdbState->pBackendWrapper;
  char             sKeyStr[128] = {0};
  char             eKeyStr[128] = {0};
  SStateKey        sKey = {.key = {.ts = 0, .groupId = 0}, .opNum = pState->number};
  SStateKey        eKey = {.key = {.ts = INT64_MAX, .groupId = UINT64_MAX}, .opNum = pState->number};

  int sLen = stateKeyEncode(&sKey, sKeyStr);
  int eLen = stateKeyEncode(&eKey, eKeyStr);

  if (wrapper->pHandle[1] != NULL) {
    char* err = NULL;
    rocksdb_delete_range_cf(wrapper->rocksdb, wrapper->writeOpts, wrapper->pHandle[1], sKeyStr, sLen, eKeyStr, eLen,
                            &err);
    if (err != NULL) {
      char toStringStart[128] = {0};
      char toStringEnd[128] = {0};
      stateKeyToString(&sKey, toStringStart);
      stateKeyToString(&eKey, toStringEnd);

      qWarn("failed to delete range cf(state) start: %s, end:%s, reason:%s", toStringStart, toStringEnd, err);
      taosMemoryFree(err);
    } else {
      rocksdb_compact_range_cf(wrapper->rocksdb, wrapper->pHandle[1], sKeyStr, sLen, eKeyStr, eLen);
    }
  }

  return 0;
}
int32_t streamStateCurNext_rocksdb(SStreamState* pState, SStreamStateCur* pCur) {
  if (!pCur) {
    return -1;
  }
  rocksdb_iter_next(pCur->iter);
  return 0;
}
int32_t streamStateGetFirst_rocksdb(SStreamState* pState, SWinKey* key) {
  qDebug("streamStateGetFirst_rocksdb");
  SWinKey tmp = {.ts = 0, .groupId = 0};
  streamStatePut_rocksdb(pState, &tmp, NULL, 0);
  SStreamStateCur* pCur = streamStateSeekKeyNext_rocksdb(pState, &tmp);
  int32_t          code = streamStateGetKVByCur_rocksdb(pCur, key, NULL, 0);
  streamStateFreeCur(pCur);
  streamStateDel_rocksdb(pState, &tmp);
  return code;
}

int32_t streamStateGetGroupKVByCur_rocksdb(SStreamStateCur* pCur, SWinKey* pKey, const void** pVal, int32_t* pVLen) {
  qDebug("streamStateGetGroupKVByCur_rocksdb");
  if (!pCur) {
    return -1;
  }
  uint64_t groupId = pKey->groupId;

  int32_t code = streamStateFillGetKVByCur_rocksdb(pCur, pKey, pVal, pVLen);
  if (code == 0) {
    if (pKey->groupId == groupId) {
      return 0;
    }
  }
  return -1;
}
int32_t streamStateAddIfNotExist_rocksdb(SStreamState* pState, const SWinKey* key, void** pVal, int32_t* pVLen) {
  qDebug("streamStateAddIfNotExist_rocksdb");
  int32_t size = *pVLen;
  if (streamStateGet_rocksdb(pState, key, pVal, pVLen) == 0) {
    return 0;
  }
  *pVal = taosMemoryMalloc(size);
  memset(*pVal, 0, size);
  return 0;
}
int32_t streamStateCurPrev_rocksdb(SStreamState* pState, SStreamStateCur* pCur) {
  qDebug("streamStateCurPrev_rocksdb");
  if (!pCur) return -1;

  rocksdb_iter_prev(pCur->iter);
  return 0;
}
int32_t streamStateGetKVByCur_rocksdb(SStreamStateCur* pCur, SWinKey* pKey, const void** pVal, int32_t* pVLen) {
  qDebug("streamStateGetKVByCur_rocksdb");
  if (!pCur) return -1;
  SStateKey  tkey;
  SStateKey* pKtmp = &tkey;

  if (rocksdb_iter_valid(pCur->iter) && !iterValueIsStale(pCur->iter)) {
    size_t tlen;
    char*  keyStr = (char*)rocksdb_iter_key(pCur->iter, &tlen);
    stateKeyDecode((void*)pKtmp, keyStr);
    if (pKtmp->opNum != pCur->number) {
      return -1;
    }
    size_t vlen = 0;
    if (pVal != NULL) *pVal = (char*)rocksdb_iter_value(pCur->iter, &vlen);
    if (pVLen != NULL) *pVLen = vlen;
    *pKey = pKtmp->key;
    return 0;
  }
  return -1;
}
SStreamStateCur* streamStateGetAndCheckCur_rocksdb(SStreamState* pState, SWinKey* key) {
  qDebug("streamStateGetAndCheckCur_rocksdb");
  SStreamStateCur* pCur = streamStateFillGetCur_rocksdb(pState, key);
  if (pCur) {
    int32_t code = streamStateGetGroupKVByCur_rocksdb(pCur, key, NULL, 0);
    if (code == 0) return pCur;
    streamStateFreeCur(pCur);
  }
  return NULL;
}

SStreamStateCur* streamStateSeekKeyNext_rocksdb(SStreamState* pState, const SWinKey* key) {
  qDebug("streamStateSeekKeyNext_rocksdb");
  SStreamStateCur* pCur = taosMemoryCalloc(1, sizeof(SStreamStateCur));
  if (pCur == NULL) {
    return NULL;
  }
  SBackendWrapper* wrapper = pState->pTdbState->pBackendWrapper;
  pCur->number = pState->number;
  pCur->db = wrapper->rocksdb;
  pCur->iter = streamStateIterCreate(pState, "state", (rocksdb_snapshot_t**)&pCur->snapshot,
                                     (rocksdb_readoptions_t**)&pCur->readOpt);

  SStateKey sKey = {.key = *key, .opNum = pState->number};
  char      buf[128] = {0};
  int       len = stateKeyEncode((void*)&sKey, buf);
  if (!streamStateIterSeekAndValid(pCur->iter, buf, len)) {
    streamStateFreeCur(pCur);
    return NULL;
  }
  // skip ttl expired data
  while (rocksdb_iter_valid(pCur->iter) && iterValueIsStale(pCur->iter)) {
    rocksdb_iter_next(pCur->iter);
  }

  if (rocksdb_iter_valid(pCur->iter)) {
    SStateKey curKey;
    size_t    kLen;
    char*     keyStr = (char*)rocksdb_iter_key(pCur->iter, &kLen);
    stateKeyDecode((void*)&curKey, keyStr);
    if (stateKeyCmpr(&sKey, sizeof(sKey), &curKey, sizeof(curKey)) > 0) {
      return pCur;
    }
    rocksdb_iter_next(pCur->iter);
    return pCur;
  }
  streamStateFreeCur(pCur);
  return NULL;
}

SStreamStateCur* streamStateSeekToLast_rocksdb(SStreamState* pState, const SWinKey* key) {
  qDebug("streamStateGetCur_rocksdb");
  int32_t          code = 0;
  SBackendWrapper* wrapper = pState->pTdbState->pBackendWrapper;

  const SStateKey maxStateKey = {.key = {.groupId = UINT64_MAX, .ts = INT64_MAX}, .opNum = INT64_MAX};
  STREAM_STATE_PUT_ROCKSDB(pState, "state", &maxStateKey, "", 0);
  char             buf[128] = {0};
  int32_t          klen = stateKeyEncode((void*)&maxStateKey, buf);
  SStreamStateCur* pCur = taosMemoryCalloc(1, sizeof(SStreamStateCur));
  if (pCur == NULL) return NULL;
  pCur->db = wrapper->rocksdb;
  pCur->iter = streamStateIterCreate(pState, "state", (rocksdb_snapshot_t**)&pCur->snapshot,
                                     (rocksdb_readoptions_t**)&pCur->readOpt);
  rocksdb_iter_seek(pCur->iter, buf, (size_t)klen);

  rocksdb_iter_prev(pCur->iter);
  while (rocksdb_iter_valid(pCur->iter) && iterValueIsStale(pCur->iter)) {
    rocksdb_iter_prev(pCur->iter);
  }

  if (!rocksdb_iter_valid(pCur->iter)) {
    streamStateFreeCur(pCur);
    pCur = NULL;
  }
  STREAM_STATE_DEL_ROCKSDB(pState, "state", &maxStateKey);
  return pCur;
}

SStreamStateCur* streamStateGetCur_rocksdb(SStreamState* pState, const SWinKey* key) {
  qDebug("streamStateGetCur_rocksdb");
  SBackendWrapper* wrapper = pState->pTdbState->pBackendWrapper;
  SStreamStateCur* pCur = taosMemoryCalloc(1, sizeof(SStreamStateCur));

  if (pCur == NULL) return NULL;
  pCur->db = wrapper->rocksdb;
  pCur->iter = streamStateIterCreate(pState, "state", (rocksdb_snapshot_t**)&pCur->snapshot,
                                     (rocksdb_readoptions_t**)&pCur->readOpt);

  SStateKey sKey = {.key = *key, .opNum = pState->number};
  char      buf[128] = {0};
  int       len = stateKeyEncode((void*)&sKey, buf);

  rocksdb_iter_seek(pCur->iter, buf, len);

  if (rocksdb_iter_valid(pCur->iter) && !iterValueIsStale(pCur->iter)) {
    size_t vlen;
    char*  val = (char*)rocksdb_iter_value(pCur->iter, &vlen);
    if (!streamStateValueIsStale(val)) {
      SStateKey curKey;
      size_t    kLen = 0;
      char*     keyStr = (char*)rocksdb_iter_key(pCur->iter, &kLen);
      stateKeyDecode((void*)&curKey, keyStr);

      if (stateKeyCmpr(&sKey, sizeof(sKey), &curKey, sizeof(curKey)) == 0) {
        pCur->number = pState->number;
        return pCur;
      }
    }
  }
  streamStateFreeCur(pCur);
  return NULL;
}

// func cf
int32_t streamStateFuncPut_rocksdb(SStreamState* pState, const STupleKey* key, const void* value, int32_t vLen) {
  int code = 0;
  STREAM_STATE_PUT_ROCKSDB(pState, "func", key, (void*)value, vLen);
  return code;
}
int32_t streamStateFuncGet_rocksdb(SStreamState* pState, const STupleKey* key, void** pVal, int32_t* pVLen) {
  int code = 0;
  STREAM_STATE_GET_ROCKSDB(pState, "func", key, pVal, pVLen);
  return 0;
}
int32_t streamStateFuncDel_rocksdb(SStreamState* pState, const STupleKey* key) {
  int code = 0;
  STREAM_STATE_DEL_ROCKSDB(pState, "func", key);
  return 0;
}

// session cf
int32_t streamStateSessionPut_rocksdb(SStreamState* pState, const SSessionKey* key, const void* value, int32_t vLen) {
  int              code = 0;
  SStateSessionKey sKey = {.key = *key, .opNum = pState->number};
  STREAM_STATE_PUT_ROCKSDB(pState, "sess", &sKey, value, vLen);
  if (code == -1) {
  }
  return code;
}
int32_t streamStateSessionGet_rocksdb(SStreamState* pState, SSessionKey* key, void** pVal, int32_t* pVLen) {
  qDebug("streamStateSessionGet_rocksdb");
  int              code = 0;
  SStreamStateCur* pCur = streamStateSessionSeekKeyCurrentNext_rocksdb(pState, key);
  SSessionKey      resKey = *key;
  void*            tmp = NULL;
  int32_t          vLen = 0;
  code = streamStateSessionGetKVByCur_rocksdb(pCur, &resKey, &tmp, &vLen);
  if (code == 0) {
    if (pVLen != NULL) *pVLen = vLen;

    if (key->win.skey != resKey.win.skey) {
      code = -1;
    } else {
      *key = resKey;
      *pVal = taosMemoryCalloc(1, *pVLen);
      memcpy(*pVal, tmp, *pVLen);
    }
  }
  taosMemoryFree(tmp);
  streamStateFreeCur(pCur);
  // impl later
  return code;
}

int32_t streamStateSessionDel_rocksdb(SStreamState* pState, const SSessionKey* key) {
  int              code = 0;
  SStateSessionKey sKey = {.key = *key, .opNum = pState->number};
  STREAM_STATE_DEL_ROCKSDB(pState, "sess", &sKey);
  return code;
}
SStreamStateCur* streamStateSessionSeekKeyCurrentPrev_rocksdb(SStreamState* pState, const SSessionKey* key) {
  qDebug("streamStateSessionSeekKeyCurrentPrev_rocksdb");

  SBackendWrapper* wrapper = pState->pTdbState->pBackendWrapper;
  SStreamStateCur* pCur = taosMemoryCalloc(1, sizeof(SStreamStateCur));
  if (pCur == NULL) {
    return NULL;
  }
  pCur->number = pState->number;
  pCur->db = wrapper->rocksdb;
  pCur->iter = streamStateIterCreate(pState, "sess", (rocksdb_snapshot_t**)&pCur->snapshot,
                                     (rocksdb_readoptions_t**)&pCur->readOpt);

  char             buf[128] = {0};
  SStateSessionKey sKey = {.key = *key, .opNum = pState->number};
  int              len = stateSessionKeyEncode(&sKey, buf);
  if (!streamStateIterSeekAndValid(pCur->iter, buf, len)) {
    streamStateFreeCur(pCur);
    return NULL;
  }
  while (rocksdb_iter_valid(pCur->iter) && iterValueIsStale(pCur->iter)) rocksdb_iter_prev(pCur->iter);

  if (!rocksdb_iter_valid(pCur->iter)) {
    streamStateFreeCur(pCur);
    return NULL;
  }

  int32_t          c = 0;
  size_t           klen;
  const char*      iKey = rocksdb_iter_key(pCur->iter, &klen);
  SStateSessionKey curKey = {0};
  stateSessionKeyDecode(&curKey, (char*)iKey);
  if (stateSessionKeyCmpr(&sKey, sizeof(sKey), &curKey, sizeof(curKey)) >= 0) return pCur;

  rocksdb_iter_prev(pCur->iter);
  if (!rocksdb_iter_valid(pCur->iter)) {
    // qWarn("streamState failed to seek key prev
    // %s", toString);
    streamStateFreeCur(pCur);
    return NULL;
  }
  return pCur;
}
SStreamStateCur* streamStateSessionSeekKeyCurrentNext_rocksdb(SStreamState* pState, SSessionKey* key) {
  qDebug("streamStateSessionSeekKeyCurrentNext_rocksdb");
  SBackendWrapper* wrapper = pState->pTdbState->pBackendWrapper;
  SStreamStateCur* pCur = taosMemoryCalloc(1, sizeof(SStreamStateCur));
  if (pCur == NULL) {
    return NULL;
  }
  pCur->db = wrapper->rocksdb;
  pCur->iter = streamStateIterCreate(pState, "sess", (rocksdb_snapshot_t**)&pCur->snapshot,
                                     (rocksdb_readoptions_t**)&pCur->readOpt);
  pCur->number = pState->number;

  char buf[128] = {0};

  SStateSessionKey sKey = {.key = *key, .opNum = pState->number};
  int              len = stateSessionKeyEncode(&sKey, buf);
  if (!streamStateIterSeekAndValid(pCur->iter, buf, len)) {
    streamStateFreeCur(pCur);
    return NULL;
  }
  if (iterValueIsStale(pCur->iter)) {
    streamStateFreeCur(pCur);
    return NULL;
  }
  size_t           klen;
  const char*      iKey = rocksdb_iter_key(pCur->iter, &klen);
  SStateSessionKey curKey = {0};
  stateSessionKeyDecode(&curKey, (char*)iKey);
  if (stateSessionKeyCmpr(&sKey, sizeof(sKey), &curKey, sizeof(curKey)) <= 0) return pCur;

  rocksdb_iter_next(pCur->iter);
  if (!rocksdb_iter_valid(pCur->iter)) {
    streamStateFreeCur(pCur);
    return NULL;
  }
  return pCur;
}

SStreamStateCur* streamStateSessionSeekKeyNext_rocksdb(SStreamState* pState, const SSessionKey* key) {
  qDebug("streamStateSessionSeekKeyNext_rocksdb");
  SBackendWrapper* wrapper = pState->pTdbState->pBackendWrapper;
  SStreamStateCur* pCur = taosMemoryCalloc(1, sizeof(SStreamStateCur));
  if (pCur == NULL) {
    return NULL;
  }
  pCur->db = wrapper->rocksdb;
  pCur->iter = streamStateIterCreate(pState, "sess", (rocksdb_snapshot_t**)&pCur->snapshot,
                                     (rocksdb_readoptions_t**)&pCur->readOpt);
  pCur->number = pState->number;

  SStateSessionKey sKey = {.key = *key, .opNum = pState->number};

  char buf[128] = {0};
  int  len = stateSessionKeyEncode(&sKey, buf);
  if (!streamStateIterSeekAndValid(pCur->iter, buf, len)) {
    streamStateFreeCur(pCur);
    return NULL;
  }
  while (rocksdb_iter_valid(pCur->iter) && iterValueIsStale(pCur->iter)) rocksdb_iter_next(pCur->iter);
  if (!rocksdb_iter_valid(pCur->iter)) {
    streamStateFreeCur(pCur);
    return NULL;
  }
  size_t           klen;
  const char*      iKey = rocksdb_iter_key(pCur->iter, &klen);
  SStateSessionKey curKey = {0};
  stateSessionKeyDecode(&curKey, (char*)iKey);
  if (stateSessionKeyCmpr(&sKey, sizeof(sKey), &curKey, sizeof(curKey)) < 0) return pCur;

  rocksdb_iter_next(pCur->iter);
  if (!rocksdb_iter_valid(pCur->iter)) {
    streamStateFreeCur(pCur);
    return NULL;
  }
  return pCur;
}
int32_t streamStateSessionGetKVByCur_rocksdb(SStreamStateCur* pCur, SSessionKey* pKey, void** pVal, int32_t* pVLen) {
  qDebug("streamStateSessionGetKVByCur_rocksdb");
  if (!pCur) {
    return -1;
  }
  SStateSessionKey ktmp = {0};
  size_t           kLen = 0, vLen = 0;

  if (!rocksdb_iter_valid(pCur->iter) || iterValueIsStale(pCur->iter)) {
    return -1;
  }
  const char* curKey = rocksdb_iter_key(pCur->iter, (size_t*)&kLen);
  stateSessionKeyDecode((void*)&ktmp, (char*)curKey);

  SStateSessionKey* pKTmp = &ktmp;
  const char*       vval = rocksdb_iter_value(pCur->iter, (size_t*)&vLen);
  char*             val = NULL;
  int32_t           len = decodeValueFunc((void*)vval, vLen, NULL, &val);
  if (len < 0) {
    return -1;
  }
  if (pVal != NULL) {
    *pVal = (char*)val;
  } else {
    taosMemoryFree(val);
  }
  if (pVLen != NULL) *pVLen = len;

  if (pKTmp->opNum != pCur->number) {
    return -1;
  }
  if (pKey->groupId != 0 && pKey->groupId != pKTmp->key.groupId) {
    return -1;
  }
  *pKey = pKTmp->key;
  return 0;
}
// fill cf
int32_t streamStateFillPut_rocksdb(SStreamState* pState, const SWinKey* key, const void* value, int32_t vLen) {
  int code = 0;

  STREAM_STATE_PUT_ROCKSDB(pState, "fill", key, value, vLen);
  return code;
}

int32_t streamStateFillGet_rocksdb(SStreamState* pState, const SWinKey* key, void** pVal, int32_t* pVLen) {
  int code = 0;
  STREAM_STATE_GET_ROCKSDB(pState, "fill", key, pVal, pVLen);
  return code;
}
int32_t streamStateFillDel_rocksdb(SStreamState* pState, const SWinKey* key) {
  int code = 0;
  STREAM_STATE_DEL_ROCKSDB(pState, "fill", key);
  return code;
}

SStreamStateCur* streamStateFillGetCur_rocksdb(SStreamState* pState, const SWinKey* key) {
  qDebug("streamStateFillGetCur_rocksdb");
  SStreamStateCur* pCur = taosMemoryCalloc(1, sizeof(SStreamStateCur));
  SBackendWrapper* wrapper = pState->pTdbState->pBackendWrapper;

  if (pCur == NULL) return NULL;

  pCur->db = wrapper->rocksdb;
  pCur->iter = streamStateIterCreate(pState, "fill", (rocksdb_snapshot_t**)&pCur->snapshot,
                                     (rocksdb_readoptions_t**)&pCur->readOpt);

  char buf[128] = {0};
  int  len = winKeyEncode((void*)key, buf);
  if (!streamStateIterSeekAndValid(pCur->iter, buf, len)) {
    streamStateFreeCur(pCur);
    return NULL;
  }
  if (iterValueIsStale(pCur->iter)) {
    streamStateFreeCur(pCur);
    return NULL;
  }

  if (rocksdb_iter_valid(pCur->iter)) {
    size_t  kLen;
    SWinKey curKey;
    char*   keyStr = (char*)rocksdb_iter_key(pCur->iter, &kLen);
    winKeyDecode((void*)&curKey, keyStr);
    if (winKeyCmpr(key, sizeof(*key), &curKey, sizeof(curKey)) == 0) {
      return pCur;
    }
  }

  streamStateFreeCur(pCur);
  return NULL;
}
int32_t streamStateFillGetKVByCur_rocksdb(SStreamStateCur* pCur, SWinKey* pKey, const void** pVal, int32_t* pVLen) {
  qDebug("streamStateFillGetKVByCur_rocksdb");
  if (!pCur) {
    return -1;
  }
  SWinKey winKey;
  if (!rocksdb_iter_valid(pCur->iter) || iterValueIsStale(pCur->iter)) {
    return -1;
  }
  size_t klen, vlen;
  char*  keyStr = (char*)rocksdb_iter_key(pCur->iter, &klen);
  winKeyDecode(&winKey, keyStr);

  const char* valStr = rocksdb_iter_value(pCur->iter, &vlen);
  // char*       dst = NULL;
  int32_t len = decodeValueFunc((void*)valStr, vlen, NULL, (char**)pVal);
  if (len < 0) {
    return -1;
  }
  if (pVLen != NULL) *pVLen = len;

  *pKey = winKey;
  return 0;
}

SStreamStateCur* streamStateFillSeekKeyNext_rocksdb(SStreamState* pState, const SWinKey* key) {
  qDebug("streamStateFillSeekKeyNext_rocksdb");
  SBackendWrapper* wrapper = pState->pTdbState->pBackendWrapper;
  SStreamStateCur* pCur = taosMemoryCalloc(1, sizeof(SStreamStateCur));
  if (!pCur) {
    return NULL;
  }

  pCur->db = wrapper->rocksdb;
  pCur->iter = streamStateIterCreate(pState, "fill", (rocksdb_snapshot_t**)&pCur->snapshot,
                                     (rocksdb_readoptions_t**)&pCur->readOpt);

  char buf[128] = {0};
  int  len = winKeyEncode((void*)key, buf);
  if (!streamStateIterSeekAndValid(pCur->iter, buf, len)) {
    streamStateFreeCur(pCur);
    return NULL;
  }
  // skip stale data
  while (rocksdb_iter_valid(pCur->iter) && iterValueIsStale(pCur->iter)) {
    rocksdb_iter_next(pCur->iter);
  }

  if (rocksdb_iter_valid(pCur->iter)) {
    SWinKey curKey;
    size_t  kLen = 0;
    char*   keyStr = (char*)rocksdb_iter_key(pCur->iter, &kLen);
    winKeyDecode((void*)&curKey, keyStr);
    if (winKeyCmpr(key, sizeof(*key), &curKey, sizeof(curKey)) > 0) {
      return pCur;
    }
    rocksdb_iter_next(pCur->iter);
    return pCur;
  }
  streamStateFreeCur(pCur);
  return NULL;
}
SStreamStateCur* streamStateFillSeekKeyPrev_rocksdb(SStreamState* pState, const SWinKey* key) {
  qDebug("streamStateFillSeekKeyPrev_rocksdb");
  SBackendWrapper* wrapper = pState->pTdbState->pBackendWrapper;
  SStreamStateCur* pCur = taosMemoryCalloc(1, sizeof(SStreamStateCur));
  if (pCur == NULL) {
    return NULL;
  }

  pCur->db = wrapper->rocksdb;
  pCur->iter = streamStateIterCreate(pState, "fill", (rocksdb_snapshot_t**)&pCur->snapshot,
                                     (rocksdb_readoptions_t**)&pCur->readOpt);

  char buf[128] = {0};
  int  len = winKeyEncode((void*)key, buf);
  if (!streamStateIterSeekAndValid(pCur->iter, buf, len)) {
    streamStateFreeCur(pCur);
    return NULL;
  }
  while (rocksdb_iter_valid(pCur->iter) && iterValueIsStale(pCur->iter)) {
    rocksdb_iter_prev(pCur->iter);
  }

  if (rocksdb_iter_valid(pCur->iter)) {
    SWinKey curKey;
    size_t  kLen = 0;
    char*   keyStr = (char*)rocksdb_iter_key(pCur->iter, &kLen);
    winKeyDecode((void*)&curKey, keyStr);
    if (winKeyCmpr(key, sizeof(*key), &curKey, sizeof(curKey)) < 0) {
      return pCur;
    }
    rocksdb_iter_prev(pCur->iter);
    return pCur;
  }

  streamStateFreeCur(pCur);
  return NULL;
}
int32_t streamStateSessionGetKeyByRange_rocksdb(SStreamState* pState, const SSessionKey* key, SSessionKey* curKey) {
  qDebug("streamStateSessionGetKeyByRange_rocksdb");
  SBackendWrapper* wrapper = pState->pTdbState->pBackendWrapper;
  SStreamStateCur* pCur = taosMemoryCalloc(1, sizeof(SStreamStateCur));
  if (pCur == NULL) {
    return -1;
  }
  pCur->number = pState->number;
  pCur->db = wrapper->rocksdb;
  pCur->iter = streamStateIterCreate(pState, "sess", (rocksdb_snapshot_t**)&pCur->snapshot,
                                     (rocksdb_readoptions_t**)&pCur->readOpt);

  SStateSessionKey sKey = {.key = *key, .opNum = pState->number};
  int32_t          c = 0;
  char             buf[128] = {0};
  int              len = stateSessionKeyEncode(&sKey, buf);
  if (!streamStateIterSeekAndValid(pCur->iter, buf, len)) {
    streamStateFreeCur(pCur);
    return -1;
  }

  size_t           kLen;
  const char*      iKeyStr = rocksdb_iter_key(pCur->iter, (size_t*)&kLen);
  SStateSessionKey iKey = {0};
  stateSessionKeyDecode(&iKey, (char*)iKeyStr);

  c = stateSessionKeyCmpr(&sKey, sizeof(sKey), &iKey, sizeof(iKey));

  SSessionKey resKey = *key;
  int32_t     code = streamStateSessionGetKVByCur_rocksdb(pCur, &resKey, NULL, 0);
  if (code == 0 && sessionRangeKeyCmpr(key, &resKey) == 0) {
    *curKey = resKey;
    streamStateFreeCur(pCur);
    return code;
  }

  if (c > 0) {
    streamStateCurNext_rocksdb(pState, pCur);
    code = streamStateSessionGetKVByCur_rocksdb(pCur, &resKey, NULL, 0);
    if (code == 0 && sessionRangeKeyCmpr(key, &resKey) == 0) {
      *curKey = resKey;
      streamStateFreeCur(pCur);
      return code;
    }
  } else if (c < 0) {
    streamStateCurPrev(pState, pCur);
    code = streamStateSessionGetKVByCur_rocksdb(pCur, &resKey, NULL, 0);
    if (code == 0 && sessionRangeKeyCmpr(key, &resKey) == 0) {
      *curKey = resKey;
      streamStateFreeCur(pCur);
      return code;
    }
  }

  streamStateFreeCur(pCur);
  return -1;
}

int32_t streamStateSessionAddIfNotExist_rocksdb(SStreamState* pState, SSessionKey* key, TSKEY gap, void** pVal,
                                                int32_t* pVLen) {
  qDebug("streamStateSessionAddIfNotExist_rocksdb");
  // todo refactor
  int32_t     res = 0;
  SSessionKey originKey = *key;
  SSessionKey searchKey = *key;
  searchKey.win.skey = key->win.skey - gap;
  searchKey.win.ekey = key->win.ekey + gap;
  int32_t valSize = *pVLen;

  void* tmp = taosMemoryMalloc(valSize);

  SStreamStateCur* pCur = streamStateSessionSeekKeyCurrentPrev_rocksdb(pState, key);
  if (pCur == NULL) {
  }
  int32_t code = streamStateSessionGetKVByCur_rocksdb(pCur, key, pVal, pVLen);

  if (code == 0) {
    if (sessionRangeKeyCmpr(&searchKey, key) == 0) {
      memcpy(tmp, *pVal, valSize);
      taosMemoryFreeClear(*pVal);
      streamStateSessionDel_rocksdb(pState, key);
      goto _end;
    }
    taosMemoryFreeClear(*pVal);
    streamStateCurNext_rocksdb(pState, pCur);
  } else {
    *key = originKey;
    streamStateFreeCur(pCur);
    taosMemoryFreeClear(*pVal);
    pCur = streamStateSessionSeekKeyNext_rocksdb(pState, key);
  }

  code = streamStateSessionGetKVByCur_rocksdb(pCur, key, pVal, pVLen);
  if (code == 0) {
    if (sessionRangeKeyCmpr(&searchKey, key) == 0) {
      memcpy(tmp, *pVal, valSize);
      streamStateSessionDel_rocksdb(pState, key);
      goto _end;
    }
  }

  *key = originKey;
  res = 1;
  memset(tmp, 0, valSize);

_end:
  taosMemoryFree(*pVal);
  *pVal = tmp;
  streamStateFreeCur(pCur);
  return res;
}
int32_t streamStateSessionClear_rocksdb(SStreamState* pState) {
  qDebug("streamStateSessionClear_rocksdb");
  SSessionKey      key = {.win.skey = 0, .win.ekey = 0, .groupId = 0};
  SStreamStateCur* pCur = streamStateSessionSeekKeyCurrentNext_rocksdb(pState, &key);

  while (1) {
    SSessionKey delKey = {0};
    void*       buf = NULL;
    int32_t     size = 0;
    int32_t     code = streamStateSessionGetKVByCur_rocksdb(pCur, &delKey, &buf, &size);
    if (code == 0 && size > 0) {
      memset(buf, 0, size);
      // refactor later
      streamStateSessionPut_rocksdb(pState, &delKey, buf, size);
    } else {
      taosMemoryFreeClear(buf);
      break;
    }
    taosMemoryFreeClear(buf);

    streamStateCurNext_rocksdb(pState, pCur);
  }
  streamStateFreeCur(pCur);
  return -1;
}
int32_t streamStateStateAddIfNotExist_rocksdb(SStreamState* pState, SSessionKey* key, char* pKeyData,
                                              int32_t keyDataLen, state_key_cmpr_fn fn, void** pVal, int32_t* pVLen) {
  qDebug("streamStateStateAddIfNotExist_rocksdb");
  // todo refactor
  int32_t     res = 0;
  SSessionKey tmpKey = *key;
  int32_t     valSize = *pVLen;
  void*       tmp = taosMemoryMalloc(valSize);
  // tdbRealloc(NULL, valSize);
  if (!tmp) {
    return -1;
  }

  SStreamStateCur* pCur = streamStateSessionSeekKeyCurrentPrev_rocksdb(pState, key);
  int32_t          code = streamStateSessionGetKVByCur_rocksdb(pCur, key, pVal, pVLen);
  if (code == 0) {
    if (key->win.skey <= tmpKey.win.skey && tmpKey.win.ekey <= key->win.ekey) {
      memcpy(tmp, *pVal, valSize);
      streamStateSessionDel_rocksdb(pState, key);
      goto _end;
    }

    void* stateKey = (char*)(*pVal) + (valSize - keyDataLen);
    if (fn(pKeyData, stateKey) == true) {
      memcpy(tmp, *pVal, valSize);
      streamStateSessionDel_rocksdb(pState, key);
      goto _end;
    }

    streamStateCurNext_rocksdb(pState, pCur);
  } else {
    *key = tmpKey;
    streamStateFreeCur(pCur);
    pCur = streamStateSessionSeekKeyNext_rocksdb(pState, key);
  }
  taosMemoryFreeClear(*pVal);
  code = streamStateSessionGetKVByCur_rocksdb(pCur, key, pVal, pVLen);
  if (code == 0) {
    void* stateKey = (char*)(*pVal) + (valSize - keyDataLen);
    if (fn(pKeyData, stateKey) == true) {
      memcpy(tmp, *pVal, valSize);
      streamStateSessionDel_rocksdb(pState, key);
      goto _end;
    }
  }
  taosMemoryFreeClear(*pVal);

  *key = tmpKey;
  res = 1;
  memset(tmp, 0, valSize);

_end:
  taosMemoryFreeClear(*pVal);
  *pVal = tmp;
  streamStateFreeCur(pCur);
  return res;
}

//  partag cf
int32_t streamStatePutParTag_rocksdb(SStreamState* pState, int64_t groupId, const void* tag, int32_t tagLen) {
  int code = 0;
  STREAM_STATE_PUT_ROCKSDB(pState, "partag", &groupId, tag, tagLen);
  return code;
}

int32_t streamStateGetParTag_rocksdb(SStreamState* pState, int64_t groupId, void** tagVal, int32_t* tagLen) {
  int code = 0;
  STREAM_STATE_GET_ROCKSDB(pState, "partag", &groupId, tagVal, tagLen);
  return code;
}
// parname cfg
int32_t streamStatePutParName_rocksdb(SStreamState* pState, int64_t groupId, const char tbname[TSDB_TABLE_NAME_LEN]) {
  int code = 0;
  STREAM_STATE_PUT_ROCKSDB(pState, "parname", &groupId, (char*)tbname, TSDB_TABLE_NAME_LEN);
  return code;
}
int32_t streamStateGetParName_rocksdb(SStreamState* pState, int64_t groupId, void** pVal) {
  int    code = 0;
  size_t tagLen;
  STREAM_STATE_GET_ROCKSDB(pState, "parname", &groupId, pVal, &tagLen);
  return code;
}

int32_t streamDefaultPut_rocksdb(SStreamState* pState, const void* key, void* pVal, int32_t pVLen) {
  int code = 0;
  STREAM_STATE_PUT_ROCKSDB(pState, "default", key, pVal, pVLen);
  return code;
}
int32_t streamDefaultGet_rocksdb(SStreamState* pState, const void* key, void** pVal, int32_t* pVLen) {
  int code = 0;
  STREAM_STATE_GET_ROCKSDB(pState, "default", key, pVal, pVLen);
  return code;
}
int32_t streamDefaultDel_rocksdb(SStreamState* pState, const void* key) {
  int code = 0;
  STREAM_STATE_DEL_ROCKSDB(pState, "default", key);
  return code;
}

int32_t streamDefaultIterGet_rocksdb(SStreamState* pState, const void* start, const void* end, SArray* result) {
  int   code = 0;
  char* err = NULL;

  SBackendWrapper*       wrapper = pState->pTdbState->pBackendWrapper;
  rocksdb_snapshot_t*    snapshot = NULL;
  rocksdb_readoptions_t* readopts = NULL;
  rocksdb_iterator_t*    pIter = streamStateIterCreate(pState, "default", &snapshot, &readopts);
  if (pIter == NULL) {
    return -1;
  }

  rocksdb_iter_seek(pIter, start, strlen(start));
  while (rocksdb_iter_valid(pIter)) {
    const char* key = rocksdb_iter_key(pIter, NULL);
    int32_t     vlen = 0;
    const char* vval = rocksdb_iter_value(pIter, (size_t*)&vlen);
    char*       val = NULL;
    int32_t     len = decodeValueFunc((void*)vval, vlen, NULL, NULL);
    if (len < 0) {
      rocksdb_iter_next(pIter);
      continue;
    }

    if (end != NULL && strcmp(key, end) > 0) {
      break;
    }
    if (strncmp(key, start, strlen(start)) == 0 && strlen(key) >= strlen(start) + 1) {
      int64_t checkPoint = 0;
      if (sscanf(key + strlen(key), ":%" PRId64 "", &checkPoint) == 1) {
        taosArrayPush(result, &checkPoint);
      }
    } else {
      break;
    }
    rocksdb_iter_next(pIter);
  }
  rocksdb_release_snapshot(wrapper->rocksdb, snapshot);
  rocksdb_readoptions_destroy(readopts);
  rocksdb_iter_destroy(pIter);
  return code;
}
void* streamDefaultIterCreate_rocksdb(SStreamState* pState) {
  SStreamStateCur* pCur = taosMemoryCalloc(1, sizeof(SStreamStateCur));
  SBackendWrapper* wrapper = pState->pTdbState->pBackendWrapper;

  pCur->db = wrapper->rocksdb;
  pCur->iter = streamStateIterCreate(pState, "default", (rocksdb_snapshot_t**)&pCur->snapshot,
                                     (rocksdb_readoptions_t**)&pCur->readOpt);
  return pCur;
}
int32_t streamDefaultIterValid_rocksdb(void* iter) {
  SStreamStateCur* pCur = iter;
  bool             val = rocksdb_iter_valid(pCur->iter);

  return val ? 1 : 0;
}
void streamDefaultIterSeek_rocksdb(void* iter, const char* key) {
  SStreamStateCur* pCur = iter;
  rocksdb_iter_seek(pCur->iter, key, strlen(key));
}
void streamDefaultIterNext_rocksdb(void* iter) {
  SStreamStateCur* pCur = iter;
  rocksdb_iter_next(pCur->iter);
}
char* streamDefaultIterKey_rocksdb(void* iter, int32_t* len) {
  SStreamStateCur* pCur = iter;
  return (char*)rocksdb_iter_key(pCur->iter, (size_t*)len);
}
char* streamDefaultIterVal_rocksdb(void* iter, int32_t* len) {
  SStreamStateCur* pCur = iter;
  int32_t          vlen = 0;
  char*            dst = NULL;
  const char*      vval = rocksdb_iter_value(pCur->iter, (size_t*)&vlen);
  if (decodeValueFunc((void*)vval, vlen, NULL, &dst) < 0) {
    return NULL;
  }
  return dst;
}
// batch func
void* streamStateCreateBatch() {
  rocksdb_writebatch_t* pBatch = rocksdb_writebatch_create();
  return pBatch;
}
int32_t streamStateGetBatchSize(void* pBatch) {
  if (pBatch == NULL) return 0;
  return rocksdb_writebatch_count(pBatch);
}

void    streamStateClearBatch(void* pBatch) { rocksdb_writebatch_clear((rocksdb_writebatch_t*)pBatch); }
void    streamStateDestroyBatch(void* pBatch) { rocksdb_writebatch_destroy((rocksdb_writebatch_t*)pBatch); }
int32_t streamStatePutBatch(SStreamState* pState, const char* cfName, rocksdb_writebatch_t* pBatch, void* key,
                            void* val, int32_t vlen, int64_t ttl) {
  SBackendWrapper* wrapper = pState->pTdbState->pBackendWrapper;
  int              i = streamStateGetCfIdx(pState, cfName);

  if (i < 0) {
    qError("streamState failed to put to cf name:%s", cfName);
    return -1;
  }
  char    buf[128] = {0};
  int32_t klen = ginitDict[i].enFunc((void*)key, buf);

  char*                           ttlV = NULL;
  int32_t                         ttlVLen = ginitDict[i].enValueFunc(val, vlen, ttl, &ttlV);
  rocksdb_column_family_handle_t* pCf = wrapper->pHandle[ginitDict[i].idx];
  rocksdb_writebatch_put_cf((rocksdb_writebatch_t*)pBatch, pCf, buf, (size_t)klen, ttlV, (size_t)ttlVLen);
  taosMemoryFree(ttlV);
  return 0;
}
int32_t streamStatePutBatchOptimize(SStreamState* pState, int32_t cfIdx, rocksdb_writebatch_t* pBatch, void* key,
                                    void* val, int32_t vlen, int64_t ttl, void* tmpBuf) {
  char    buf[128] = {0};
  int32_t klen = ginitDict[cfIdx].enFunc((void*)key, buf);
  char*   ttlV = tmpBuf;
  int32_t ttlVLen = ginitDict[cfIdx].enValueFunc(val, vlen, ttl, &ttlV);

  SBackendWrapper* wrapper = pState->pTdbState->pBackendWrapper;

  rocksdb_column_family_handle_t* pCf = wrapper->pHandle[ginitDict[cfIdx].idx];
  rocksdb_writebatch_put_cf((rocksdb_writebatch_t*)pBatch, pCf, buf, (size_t)klen, ttlV, (size_t)ttlVLen);

  if (tmpBuf == NULL) {
    taosMemoryFree(ttlV);
  }
  return 0;
}
int32_t streamStatePutBatch_rocksdb(SStreamState* pState, void* pBatch) {
  char*            err = NULL;
  SBackendWrapper* wrapper = pState->pTdbState->pBackendWrapper;
  rocksdb_write(wrapper->rocksdb, wrapper->writeOpts, (rocksdb_writebatch_t*)pBatch, &err);
  if (err != NULL) {
    qError("streamState failed to write batch, err:%s", err);
    taosMemoryFree(err);
    return -1;
  }
  return 0;
}

uint32_t nextPow2(uint32_t x) {
  x = x - 1;
  x = x | (x >> 1);
  x = x | (x >> 2);
  x = x | (x >> 4);
  x = x | (x >> 8);
  x = x | (x >> 16);
  return x + 1;
}