#4875

Committed 09 Dec 2025 01:22AM UTC coverage: 64.472% (-0.2%) from 64.623%

Build # #4875

Build Type

push

travis-ci

Committed by

guanshengliang

Commit Message

fix: temporarily disable memory leak detection for UDF tests (#33856)

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162014 of 251293 relevant lines covered (64.47%)

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82.26

/source/dnode/mnode/impl/src/mndShow.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/>.
 */

#define _DEFAULT_SOURCE
#include "mndShow.h"
#include "mndPrivilege.h"
#include "mndUser.h"
#include "systable.h"

#define SHOW_STEP_SIZE            100
#define SHOW_COLS_STEP_SIZE       4096
#define SHOW_PRIVILEGES_STEP_SIZE 2048

static SShowObj *mndCreateShowObj(SMnode *pMnode, SRetrieveTableReq *pReq);
static void      mndFreeShowObj(SShowObj *pShow);
static SShowObj *mndAcquireShowObj(SMnode *pMnode, int64_t showId);
static void      mndReleaseShowObj(SShowObj *pShow, bool forceRemove);
static bool      mndCheckRetrieveFinished(SShowObj *pShow);
static int32_t   mndProcessRetrieveSysTableReq(SRpcMsg *pReq);

int32_t mndInitShow(SMnode *pMnode) {
  int32_t    code = 0;
  SShowMgmt *pMgmt = &pMnode->showMgmt;

  pMgmt->cache = taosCacheInit(TSDB_DATA_TYPE_INT, 5000, true, (__cache_free_fn_t)mndFreeShowObj, "show");
  if (pMgmt->cache == NULL) {
    code = TSDB_CODE_OUT_OF_MEMORY;
    mError("failed to alloc show cache since %s", tstrerror(code));
    TAOS_RETURN(code);
  }

  mndSetMsgHandle(pMnode, TDMT_MND_SYSTABLE_RETRIEVE, mndProcessRetrieveSysTableReq);
  TAOS_RETURN(code);
}

void mndCleanupShow(SMnode *pMnode) {
  SShowMgmt *pMgmt = &pMnode->showMgmt;
  if (pMgmt->cache != NULL) {
    taosCacheCleanup(pMgmt->cache);
    pMgmt->cache = NULL;
  }
}

static int32_t convertToRetrieveType(char *name, int32_t len) {
  int32_t type = -1;

  if (strncasecmp(name, TSDB_INS_TABLE_DNODES, len) == 0) {
    type = TSDB_MGMT_TABLE_DNODE;
  } else if (strncasecmp(name, TSDB_INS_TABLE_MNODES, len) == 0) {
    type = TSDB_MGMT_TABLE_MNODE;
    /*
      } else if (strncasecmp(name, TSDB_INS_TABLE_MODULES, len) == 0) {
        type = TSDB_MGMT_TABLE_MODULE;
    */
  } else if (strncasecmp(name, TSDB_INS_TABLE_QNODES, len) == 0) {
    type = TSDB_MGMT_TABLE_QNODE;
  } else if (strncasecmp(name, TSDB_INS_TABLE_SNODES, len) == 0) {
    type = TSDB_MGMT_TABLE_SNODE;
  } else if (strncasecmp(name, TSDB_INS_TABLE_ANODES, len) == 0) {
    type = TSDB_MGMT_TABLE_ANODE;
  } else if (strncasecmp(name, TSDB_INS_TABLE_ANODES_FULL, len) == 0) {
    type = TSDB_MGMT_TABLE_ANODE_FULL;
  } else if (strncasecmp(name, TSDB_INS_TABLE_BNODES, len) == 0) {
    type = TSDB_MGMT_TABLE_BNODE;
  } else if (strncasecmp(name, TSDB_INS_TABLE_ARBGROUPS, len) == 0) {
    type = TSDB_MGMT_TABLE_ARBGROUP;
  } else if (strncasecmp(name, TSDB_INS_TABLE_CLUSTER, len) == 0) {
    type = TSDB_MGMT_TABLE_CLUSTER;
  } else if (strncasecmp(name, TSDB_INS_TABLE_DATABASES, len) == 0) {
    type = TSDB_MGMT_TABLE_DB;
  } else if (strncasecmp(name, TSDB_INS_TABLE_FUNCTIONS, len) == 0) {
    type = TSDB_MGMT_TABLE_FUNC;
  } else if (strncasecmp(name, TSDB_INS_TABLE_INDEXES, len) == 0) {
    type = TSDB_MGMT_TABLE_INDEX;
  } else if (strncasecmp(name, TSDB_INS_TABLE_STABLES, len) == 0) {
    type = TSDB_MGMT_TABLE_STB;
  } else if (strncasecmp(name, TSDB_INS_TABLE_TABLES, len) == 0) {
    type = TSDB_MGMT_TABLE_TABLE;
  } else if (strncasecmp(name, TSDB_INS_TABLE_TAGS, len) == 0) {
    type = TSDB_MGMT_TABLE_TAG;
  } else if (strncasecmp(name, TSDB_INS_TABLE_COLS, len) == 0) {
    type = TSDB_MGMT_TABLE_COL;
  } else if (strncasecmp(name, TSDB_INS_TABLE_TABLE_DISTRIBUTED, len) == 0) {
    //    type = TSDB_MGMT_TABLE_DIST;
  } else if (strncasecmp(name, TSDB_INS_TABLE_USERS, len) == 0) {
    type = TSDB_MGMT_TABLE_USER;
  } else if (strncasecmp(name, TSDB_INS_TABLE_USERS_FULL, len) == 0) {
    type = TSDB_MGMT_TABLE_USER_FULL;
  } else if (strncasecmp(name, TSDB_INS_TABLE_LICENCES, len) == 0) {
    type = TSDB_MGMT_TABLE_GRANTS;
  } else if (strncasecmp(name, TSDB_INS_TABLE_VGROUPS, len) == 0) {
    type = TSDB_MGMT_TABLE_VGROUP;
  } else if (strncasecmp(name, TSDB_PERFS_TABLE_CONSUMERS, len) == 0) {
    type = TSDB_MGMT_TABLE_CONSUMERS;
  } else if (strncasecmp(name, TSDB_INS_TABLE_SUBSCRIPTIONS, len) == 0) {
    type = TSDB_MGMT_TABLE_SUBSCRIPTIONS;
  } else if (strncasecmp(name, TSDB_PERFS_TABLE_TRANS, len) == 0) {
    type = TSDB_MGMT_TABLE_TRANS;
  } else if (strncasecmp(name, TSDB_PERFS_TABLE_SMAS, len) == 0) {
    type = TSDB_MGMT_TABLE_SMAS;
  } else if (strncasecmp(name, TSDB_INS_TABLE_CONFIGS, len) == 0) {
    type = TSDB_MGMT_TABLE_CONFIGS;
  } else if (strncasecmp(name, TSDB_PERFS_TABLE_CONNECTIONS, len) == 0) {
    type = TSDB_MGMT_TABLE_CONNS;
  } else if (strncasecmp(name, TSDB_PERFS_TABLE_QUERIES, len) == 0) {
    type = TSDB_MGMT_TABLE_QUERIES;
  } else if (strncasecmp(name, TSDB_INS_TABLE_VNODES, len) == 0) {
    type = TSDB_MGMT_TABLE_VNODES;
  } else if (strncasecmp(name, TSDB_INS_TABLE_TOPICS, len) == 0) {
    type = TSDB_MGMT_TABLE_TOPICS;
  } else if (strncasecmp(name, TSDB_INS_TABLE_STREAMS, len) == 0) {
    type = TSDB_MGMT_TABLE_STREAMS;
  } else if (strncasecmp(name, TSDB_PERFS_TABLE_APPS, len) == 0) {
    type = TSDB_MGMT_TABLE_APPS;
  } else if (strncasecmp(name, TSDB_PERFS_TABLE_INSTANCES, len) == 0) {
    type = TSDB_MGMT_TABLE_INSTANCE;
  } else if (strncasecmp(name, TSDB_INS_TABLE_STREAM_TASKS, len) == 0) {
    type = TSDB_MGMT_TABLE_STREAM_TASKS;
  } else if (strncasecmp(name, TSDB_INS_TABLE_STREAM_RECALCULATES, len) == 0) {
    type = TSDB_MGMT_TABLE_STREAM_RECALCULATES;
  } else if (strncasecmp(name, TSDB_INS_TABLE_USER_PRIVILEGES, len) == 0) {
    type = TSDB_MGMT_TABLE_PRIVILEGES;
  } else if (strncasecmp(name, TSDB_INS_TABLE_VIEWS, len) == 0) {
    type = TSDB_MGMT_TABLE_VIEWS;
  } else if (strncasecmp(name, TSDB_INS_TABLE_COMPACTS, len) == 0) {
    type = TSDB_MGMT_TABLE_COMPACT;
  } else if (strncasecmp(name, TSDB_INS_TABLE_ENCRYPT_ALGORITHMS, len) == 0) {
    type = TSDB_MGMT_TABLE_ENCRYPT_ALGORITHMS;
  } else if (strncasecmp(name, TSDB_INS_TABLE_SCANS, len) == 0) {
    type = TSDB_MGMT_TABLE_SCAN;
  } else if (strncasecmp(name, TSDB_INS_TABLE_COMPACT_DETAILS, len) == 0) {
    type = TSDB_MGMT_TABLE_COMPACT_DETAIL;
  } else if (strncasecmp(name, TSDB_INS_TABLE_SCAN_DETAILS, len) == 0) {
    type = TSDB_MGMT_TABLE_SCAN_DETAIL;
  } else if (strncasecmp(name, TSDB_INS_TABLE_SSMIGRATES, len) == 0) {
    type = TSDB_MGMT_TABLE_SSMIGRATE;
  } else if (strncasecmp(name, TSDB_INS_TABLE_TRANSACTION_DETAILS, len) == 0) {
    type = TSDB_MGMT_TABLE_TRANSACTION_DETAIL;
  } else if (strncasecmp(name, TSDB_INS_TABLE_GRANTS_FULL, len) == 0) {
    type = TSDB_MGMT_TABLE_GRANTS_FULL;
  } else if (strncasecmp(name, TSDB_INS_TABLE_GRANTS_LOGS, len) == 0) {
    type = TSDB_MGMT_TABLE_GRANTS_LOGS;
  } else if (strncasecmp(name, TSDB_INS_TABLE_MACHINES, len) == 0) {
    type = TSDB_MGMT_TABLE_MACHINES;
  } else if (strncasecmp(name, TSDB_INS_TABLE_ENCRYPTIONS, len) == 0) {
    type = TSDB_MGMT_TABLE_ENCRYPTIONS;
  } else if (strncasecmp(name, TSDB_INS_TABLE_TSMAS, len) == 0) {
    type = TSDB_MGMT_TABLE_TSMAS;
  } else if (strncasecmp(name, TSDB_INS_DISK_USAGE, len) == 0) {
    type = TSDB_MGMT_TABLE_USAGE;
  } else if (strncasecmp(name, TSDB_INS_TABLE_FILESETS, len) == 0) {
    type = TSDB_MGMT_TABLE_FILESETS;
  } else if (strncasecmp(name, TSDB_INS_TABLE_VC_COLS, len) == 0) {
    type = TSDB_MGMT_TABLE_VC_COL;
  } else if (strncasecmp(name, TSDB_INS_TABLE_MOUNTS, len) == 0) {
    type = TSDB_MGMT_TABLE_MOUNT;
  } else if (strncasecmp(name, TSDB_INS_TABLE_RSMAS, len) == 0) {
    type = TSDB_MGMT_TABLE_RSMA;
  } else if (strncasecmp(name, TSDB_INS_TABLE_RETENTIONS, len) == 0) {
    type = TSDB_MGMT_TABLE_RETENTION;
  } else if (strncasecmp(name, TSDB_INS_TABLE_RETENTION_DETAILS, len) == 0) {
    type = TSDB_MGMT_TABLE_RETENTION_DETAIL;
  } else {
    mError("invalid show name:%s len:%d", name, len);
  }

  return type;
}

static SShowObj *mndCreateShowObj(SMnode *pMnode, SRetrieveTableReq *pReq) {
  SShowMgmt *pMgmt = &pMnode->showMgmt;

  int64_t showId = atomic_add_fetch_64(&pMgmt->showId, 1);
  if (showId == 0) atomic_add_fetch_64(&pMgmt->showId, 1);

  int32_t size = sizeof(SShowObj);

  SShowObj showObj = {0};

  showObj.id = showId;
  showObj.pMnode = pMnode;
  showObj.type = convertToRetrieveType(pReq->tb, tListLen(pReq->tb));
  (void)memcpy(showObj.db, pReq->db, TSDB_DB_FNAME_LEN);
  tstrncpy(showObj.filterTb, pReq->filterTb, TSDB_TABLE_NAME_LEN);

  int32_t   keepTime = tsShellActivityTimer * 6 * 1000;
  SShowObj *pShow = taosCachePut(pMgmt->cache, &showId, sizeof(int64_t), &showObj, size, keepTime);
  if (pShow == NULL) {
    terrno = TSDB_CODE_OUT_OF_MEMORY;
    mError("show:0x%" PRIx64 ", failed to put into cache since %s", showId, terrstr());
    return NULL;
  }

  mTrace("show:0x%" PRIx64 ", is created, data:%p", showId, pShow);
  return pShow;
}

static void mndFreeShowObj(SShowObj *pShow) {
  SMnode    *pMnode = pShow->pMnode;
  SShowMgmt *pMgmt = &pMnode->showMgmt;

  ShowFreeIterFp freeFp = pMgmt->freeIterFps[pShow->type];
  if (freeFp != NULL) {
    if (pShow->pIter != NULL) {
      mTrace("show:0x%" PRIx64 ", is destroying, data:%p, pIter:%p, ", pShow->id, pShow, pShow->pIter);

      (*freeFp)(pMnode, pShow->pIter);

      pShow->pIter = NULL;
    }
  }

  mTrace("show:0x%" PRIx64 ", is destroyed, data:%p", pShow->id, pShow);
}

static SShowObj *mndAcquireShowObj(SMnode *pMnode, int64_t showId) {
  SShowMgmt *pMgmt = &pMnode->showMgmt;

  SShowObj *pShow = taosCacheAcquireByKey(pMgmt->cache, &showId, sizeof(showId));
  if (pShow == NULL) {
    mError("show:0x%" PRIx64 ", already destroyed", showId);
    return NULL;
  }

  mTrace("show:0x%" PRIx64 ", acquired from cache, data:%p", pShow->id, pShow);
  return pShow;
}

static void mndReleaseShowObj(SShowObj *pShow, bool forceRemove) {
  if (pShow == NULL) return;
  mTrace("show:0x%" PRIx64 ", released from cache, data:%p force:%d", pShow->id, pShow, forceRemove);

  // A bug in tcache.c
  forceRemove = 0;

  SMnode    *pMnode = pShow->pMnode;
  SShowMgmt *pMgmt = &pMnode->showMgmt;
  taosCacheRelease(pMgmt->cache, (void **)(&pShow), forceRemove);
}

static int32_t mndProcessRetrieveSysTableReq(SRpcMsg *pReq) {
  int32_t    code = 0;
  SMnode    *pMnode = pReq->info.node;
  SShowMgmt *pMgmt = &pMnode->showMgmt;
  SShowObj  *pShow = NULL;
  int32_t    rowsToRead = SHOW_STEP_SIZE;
  int32_t    size = 0;
  int32_t    rowsRead = 0;
  mDebug("mndProcessRetrieveSysTableReq start");
  SRetrieveTableReq retrieveReq = {0};
  TAOS_CHECK_RETURN(tDeserializeSRetrieveTableReq(pReq->pCont, pReq->contLen, &retrieveReq));

  mDebug("process to retrieve systable req db:%s, tb:%s, compactId:%" PRId64, retrieveReq.db, retrieveReq.tb,
         retrieveReq.compactId);

  if (retrieveReq.showId == 0) {
    STableMetaRsp *pMeta = taosHashGet(pMnode->infosMeta, retrieveReq.tb, strlen(retrieveReq.tb));
    if (pMeta == NULL) {
      pMeta = taosHashGet(pMnode->perfsMeta, retrieveReq.tb, strlen(retrieveReq.tb));
      if (pMeta == NULL) {
        code = TSDB_CODE_PAR_TABLE_NOT_EXIST;
        mError("failed to process show-retrieve req:%p since %s", pShow, tstrerror(code));
        TAOS_RETURN(code);
      }
    }

    pShow = mndCreateShowObj(pMnode, &retrieveReq);
    if (pShow == NULL) {
      code = terrno;
      mError("failed to process show-meta req since %s", tstrerror(code));
      TAOS_RETURN(code);
    }

    pShow->pMeta = pMeta;
    pShow->numOfColumns = pShow->pMeta->numOfColumns;
  } else {
    pShow = mndAcquireShowObj(pMnode, retrieveReq.showId);
    if (pShow == NULL) {
      code = TSDB_CODE_MND_INVALID_SHOWOBJ;
      mError("failed to process show-retrieve req:%p since %s", pShow, tstrerror(code));
      TAOS_RETURN(code);
    }
  }

  if (pShow->type == TSDB_MGMT_TABLE_COL) {  // expend capacity for ins_columns
    rowsToRead = SHOW_COLS_STEP_SIZE;
  } else if (pShow->type == TSDB_MGMT_TABLE_PRIVILEGES) {
    rowsToRead = SHOW_PRIVILEGES_STEP_SIZE;
  }
  ShowRetrieveFp retrieveFp = pMgmt->retrieveFps[pShow->type];
  if (retrieveFp == NULL) {
    mndReleaseShowObj(pShow, false);
    code = TSDB_CODE_MSG_NOT_PROCESSED;
    mError("show:0x%" PRIx64 ", failed to retrieve data since %s", pShow->id, tstrerror(code));
    TAOS_RETURN(code);
  }

  mDebug("show:0x%" PRIx64 ", start retrieve data, type:%d", pShow->id, pShow->type);
  if (retrieveReq.user[0] != 0) {
    (void)memcpy(pReq->info.conn.user, retrieveReq.user, TSDB_USER_LEN);
  } else {
    (void)memcpy(pReq->info.conn.user, TSDB_DEFAULT_USER, strlen(TSDB_DEFAULT_USER) + 1);
  }
  code = -1;
  if (retrieveReq.db[0] &&
      (code = mndCheckShowPrivilege(pMnode, pReq->info.conn.user, pShow->type, retrieveReq.db)) != 0) {
    TAOS_RETURN(code);
  }
  if (pShow->type == TSDB_MGMT_TABLE_USER_FULL) {
    if (strcmp(pReq->info.conn.user, "root") != 0) {
      mError("The operation is not permitted, user:%s, pShow->type:%d", pReq->info.conn.user, pShow->type);
      code = TSDB_CODE_MND_NO_RIGHTS;
      TAOS_RETURN(code);
    }
  }

  int32_t numOfCols = pShow->pMeta->numOfColumns;

  SSDataBlock *pBlock = NULL;
  code = createDataBlock(&pBlock);
  if (code) {
    TAOS_RETURN(code);
  }

  for (int32_t i = 0; i < numOfCols; ++i) {
    SColumnInfoData idata = {0};

    SSchema *p = &pShow->pMeta->pSchemas[i];

    idata.info.bytes = p->bytes;
    idata.info.type = p->type;
    idata.info.colId = p->colId;
    TAOS_CHECK_RETURN(blockDataAppendColInfo(pBlock, &idata));
  }

  TAOS_CHECK_RETURN(blockDataEnsureCapacity(pBlock, rowsToRead));

  if (mndCheckRetrieveFinished(pShow)) {
    mDebug("show:0x%" PRIx64 ", read finished, numOfRows:%d", pShow->id, pShow->numOfRows);
    rowsRead = 0;
  } else {
    rowsRead = (*retrieveFp)(pReq, pShow, pBlock, rowsToRead);
    if (rowsRead < 0) {
      code = rowsRead;
      mDebug("show:0x%" PRIx64 ", retrieve completed", pShow->id);
      mndReleaseShowObj(pShow, true);
      blockDataDestroy(pBlock);
      TAOS_RETURN(code);
    }

    pBlock->info.rows = rowsRead;
    mDebug("show:0x%" PRIx64 ", stop retrieve data, rowsRead:%d numOfRows:%d", pShow->id, rowsRead, pShow->numOfRows);
  }

  size_t dataEncodeBufSize = blockGetEncodeSize(pBlock);
  size = sizeof(SRetrieveMetaTableRsp) + sizeof(int32_t) + sizeof(SSysTableSchema) * pShow->pMeta->numOfColumns +
         dataEncodeBufSize;

  SRetrieveMetaTableRsp *pRsp = rpcMallocCont(size);
  if (pRsp == NULL) {
    mError("show:0x%" PRIx64 ", failed to retrieve data since %s", pShow->id, tstrerror(terrno));
    code = terrno;
    goto _exit;
  }

  pRsp->handle = htobe64(pShow->id);

  if (rowsRead > 0) {
    char    *pStart = pRsp->data;
    SSchema *ps = pShow->pMeta->pSchemas;

    *(int32_t *)pStart = htonl(pShow->pMeta->numOfColumns);
    pStart += sizeof(int32_t);  // number of columns

    for (int32_t i = 0; i < pShow->pMeta->numOfColumns; ++i) {
      SSysTableSchema *pSchema = (SSysTableSchema *)pStart;
      pSchema->bytes = htonl(ps[i].bytes);
      pSchema->colId = htons(ps[i].colId);
      pSchema->type = ps[i].type;

      pStart += sizeof(SSysTableSchema);
    }

    int32_t len = blockEncode(pBlock, pStart, dataEncodeBufSize, pShow->pMeta->numOfColumns);
    if (len < 0) {
      mError("show:0x%" PRIx64 ", failed to retrieve data since %s", pShow->id, tstrerror(terrno));
      code = terrno;
      return code;
    }
  }

  pRsp->numOfRows = htonl(rowsRead);
  pRsp->precision = TSDB_TIME_PRECISION_MILLI;  // millisecond time precision
  pReq->info.rsp = pRsp;
  pReq->info.rspLen = size;

  if (rowsRead == 0 || mndCheckRetrieveFinished(pShow)) {
    pRsp->completed = 1;
    mDebug("show:0x%" PRIx64 ", retrieve completed", pShow->id);
    mndReleaseShowObj(pShow, true);
  } else {
    mDebug("show:0x%" PRIx64 ", retrieve not completed yet", pShow->id);
    mndReleaseShowObj(pShow, false);
  }

  blockDataDestroy(pBlock);
  return TSDB_CODE_SUCCESS;
_exit:
  mndReleaseShowObj(pShow, false);
  blockDataDestroy(pBlock);
  if (pRsp) {
    rpcFreeCont(pRsp);
  }
  return code;
}

static bool mndCheckRetrieveFinished(SShowObj *pShow) {
  if (pShow->pIter == NULL && pShow->numOfRows != 0) {
    return true;
  }
  return false;
}

void mndAddShowRetrieveHandle(SMnode *pMnode, EShowType showType, ShowRetrieveFp fp) {
  SShowMgmt *pMgmt = &pMnode->showMgmt;
  pMgmt->retrieveFps[showType] = fp;
}

void mndAddShowFreeIterHandle(SMnode *pMnode, EShowType showType, ShowFreeIterFp fp) {
  SShowMgmt *pMgmt = &pMnode->showMgmt;
  pMgmt->freeIterFps[showType] = fp;
}

1	/*
2	* Copyright (c) 2019 TAOS Data, Inc. <jhtao@taosdata.com>
3	*
4	* This program is free software: you can use, redistribute, and/or modify
5	* it under the terms of the GNU Affero General Public License, version 3
6	* or later ("AGPL"), as published by the Free Software Foundation.
7	*
8	* This program is distributed in the hope that it will be useful, but WITHOUT
9	* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
10	* FITNESS FOR A PARTICULAR PURPOSE.
11	*
12	* You should have received a copy of the GNU Affero General Public License
13	* along with this program. If not, see <http://www.gnu.org/licenses/>.
14	*/
15
16	#define _DEFAULT_SOURCE
17	#include "mndShow.h"
18	#include "mndPrivilege.h"
19	#include "mndUser.h"
20	#include "systable.h"
21
22	#define SHOW_STEP_SIZE 100
23	#define SHOW_COLS_STEP_SIZE 4096
24	#define SHOW_PRIVILEGES_STEP_SIZE 2048
25
26	static SShowObj mndCreateShowObj(SMnode pMnode, SRetrieveTableReq *pReq);
27	static void mndFreeShowObj(SShowObj *pShow);
28	static SShowObj mndAcquireShowObj(SMnode pMnode, int64_t showId);
29	static void mndReleaseShowObj(SShowObj *pShow, bool forceRemove);
30	static bool mndCheckRetrieveFinished(SShowObj *pShow);
31	static int32_t mndProcessRetrieveSysTableReq(SRpcMsg *pReq);
32
33	int32_t mndInitShow(SMnode *pMnode) {	502,717✔
34	int32_t code = 0;	502,717✔
35	SShowMgmt *pMgmt = &pMnode->showMgmt;	502,717✔
36
37	pMgmt->cache = taosCacheInit(TSDB_DATA_TYPE_INT, 5000, true, (__cache_free_fn_t)mndFreeShowObj, "show");	502,717✔
38	if (pMgmt->cache == NULL) {	502,717✔
39	code = TSDB_CODE_OUT_OF_MEMORY;	×
40	mError("failed to alloc show cache since %s", tstrerror(code));	×
41	TAOS_RETURN(code);	×
42	}
43
44	mndSetMsgHandle(pMnode, TDMT_MND_SYSTABLE_RETRIEVE, mndProcessRetrieveSysTableReq);	502,717✔
45	TAOS_RETURN(code);	502,717✔
46	}
47
48	void mndCleanupShow(SMnode *pMnode) {	501,908✔
49	SShowMgmt *pMgmt = &pMnode->showMgmt;	501,908✔
50	if (pMgmt->cache != NULL) {	501,908✔
51	taosCacheCleanup(pMgmt->cache);	501,908✔
52	pMgmt->cache = NULL;	501,908✔
53	}
54	}	501,908✔
55
56	static int32_t convertToRetrieveType(char *name, int32_t len) {	5,268,043✔
57	int32_t type = -1;	5,268,043✔
58
59	if (strncasecmp(name, TSDB_INS_TABLE_DNODES, len) == 0) {	5,268,043✔
60	type = TSDB_MGMT_TABLE_DNODE;	894,336✔
61	} else if (strncasecmp(name, TSDB_INS_TABLE_MNODES, len) == 0) {	4,373,707✔
62	type = TSDB_MGMT_TABLE_MNODE;	366,698✔
63	/*
64	} else if (strncasecmp(name, TSDB_INS_TABLE_MODULES, len) == 0) {
65	type = TSDB_MGMT_TABLE_MODULE;
66	*/
67	} else if (strncasecmp(name, TSDB_INS_TABLE_QNODES, len) == 0) {	4,007,009✔
68	type = TSDB_MGMT_TABLE_QNODE;	8,135✔
69	} else if (strncasecmp(name, TSDB_INS_TABLE_SNODES, len) == 0) {	3,998,874✔
70	type = TSDB_MGMT_TABLE_SNODE;	172,211✔
71	} else if (strncasecmp(name, TSDB_INS_TABLE_ANODES, len) == 0) {	3,826,663✔
72	type = TSDB_MGMT_TABLE_ANODE;	359✔
73	} else if (strncasecmp(name, TSDB_INS_TABLE_ANODES_FULL, len) == 0) {	3,826,304✔
74	type = TSDB_MGMT_TABLE_ANODE_FULL;	×
75	} else if (strncasecmp(name, TSDB_INS_TABLE_BNODES, len) == 0) {	3,826,304✔
76	type = TSDB_MGMT_TABLE_BNODE;	124,221✔
77	} else if (strncasecmp(name, TSDB_INS_TABLE_ARBGROUPS, len) == 0) {	3,702,083✔
78	type = TSDB_MGMT_TABLE_ARBGROUP;	×
79	} else if (strncasecmp(name, TSDB_INS_TABLE_CLUSTER, len) == 0) {	3,702,083✔
80	type = TSDB_MGMT_TABLE_CLUSTER;	3,594✔
81	} else if (strncasecmp(name, TSDB_INS_TABLE_DATABASES, len) == 0) {	3,698,489✔
82	type = TSDB_MGMT_TABLE_DB;	632,325✔
83	} else if (strncasecmp(name, TSDB_INS_TABLE_FUNCTIONS, len) == 0) {	3,066,164✔
84	type = TSDB_MGMT_TABLE_FUNC;	12,754✔
85	} else if (strncasecmp(name, TSDB_INS_TABLE_INDEXES, len) == 0) {	3,053,410✔
86	type = TSDB_MGMT_TABLE_INDEX;	14,464✔
87	} else if (strncasecmp(name, TSDB_INS_TABLE_STABLES, len) == 0) {	3,038,946✔
88	type = TSDB_MGMT_TABLE_STB;	349,136✔
89	} else if (strncasecmp(name, TSDB_INS_TABLE_TABLES, len) == 0) {	2,689,810✔
90	type = TSDB_MGMT_TABLE_TABLE;	×
91	} else if (strncasecmp(name, TSDB_INS_TABLE_TAGS, len) == 0) {	2,689,810✔
92	type = TSDB_MGMT_TABLE_TAG;	×
93	} else if (strncasecmp(name, TSDB_INS_TABLE_COLS, len) == 0) {	2,689,810✔
94	type = TSDB_MGMT_TABLE_COL;	537,593✔
95	} else if (strncasecmp(name, TSDB_INS_TABLE_TABLE_DISTRIBUTED, len) == 0) {	2,152,217✔
96	// type = TSDB_MGMT_TABLE_DIST;
97	} else if (strncasecmp(name, TSDB_INS_TABLE_USERS, len) == 0) {	2,152,217✔
98	type = TSDB_MGMT_TABLE_USER;	20,273✔
99	} else if (strncasecmp(name, TSDB_INS_TABLE_USERS_FULL, len) == 0) {	2,131,944✔
100	type = TSDB_MGMT_TABLE_USER_FULL;	×
101	} else if (strncasecmp(name, TSDB_INS_TABLE_LICENCES, len) == 0) {	2,131,944✔
102	type = TSDB_MGMT_TABLE_GRANTS;	4,289✔
103	} else if (strncasecmp(name, TSDB_INS_TABLE_VGROUPS, len) == 0) {	2,127,655✔
104	type = TSDB_MGMT_TABLE_VGROUP;	313,692✔
105	} else if (strncasecmp(name, TSDB_PERFS_TABLE_CONSUMERS, len) == 0) {	1,813,963✔
106	type = TSDB_MGMT_TABLE_CONSUMERS;	9,979✔
107	} else if (strncasecmp(name, TSDB_INS_TABLE_SUBSCRIPTIONS, len) == 0) {	1,803,984✔
108	type = TSDB_MGMT_TABLE_SUBSCRIPTIONS;	10,782✔
109	} else if (strncasecmp(name, TSDB_PERFS_TABLE_TRANS, len) == 0) {	1,793,202✔
110	type = TSDB_MGMT_TABLE_TRANS;	504,957✔
111	} else if (strncasecmp(name, TSDB_PERFS_TABLE_SMAS, len) == 0) {	1,288,245✔
112	type = TSDB_MGMT_TABLE_SMAS;	×
113	} else if (strncasecmp(name, TSDB_INS_TABLE_CONFIGS, len) == 0) {	1,288,245✔
114	type = TSDB_MGMT_TABLE_CONFIGS;	2,513✔
115	} else if (strncasecmp(name, TSDB_PERFS_TABLE_CONNECTIONS, len) == 0) {	1,285,732✔
116	type = TSDB_MGMT_TABLE_CONNS;	17,284✔
117	} else if (strncasecmp(name, TSDB_PERFS_TABLE_QUERIES, len) == 0) {	1,268,448✔
118	type = TSDB_MGMT_TABLE_QUERIES;	6,579✔
119	} else if (strncasecmp(name, TSDB_INS_TABLE_VNODES, len) == 0) {	1,261,869✔
120	type = TSDB_MGMT_TABLE_VNODES;	1,951✔
121	} else if (strncasecmp(name, TSDB_INS_TABLE_TOPICS, len) == 0) {	1,259,918✔
122	type = TSDB_MGMT_TABLE_TOPICS;	26,253✔
123	} else if (strncasecmp(name, TSDB_INS_TABLE_STREAMS, len) == 0) {	1,233,665✔
124	type = TSDB_MGMT_TABLE_STREAMS;	322,520✔
125	} else if (strncasecmp(name, TSDB_PERFS_TABLE_APPS, len) == 0) {	911,145✔
126	type = TSDB_MGMT_TABLE_APPS;	6,108✔
127	} else if (strncasecmp(name, TSDB_PERFS_TABLE_INSTANCES, len) == 0) {	905,037✔
128	type = TSDB_MGMT_TABLE_INSTANCE;	×
129	} else if (strncasecmp(name, TSDB_INS_TABLE_STREAM_TASKS, len) == 0) {	905,037✔
130	type = TSDB_MGMT_TABLE_STREAM_TASKS;	290,719✔
131	} else if (strncasecmp(name, TSDB_INS_TABLE_STREAM_RECALCULATES, len) == 0) {	614,318✔
132	type = TSDB_MGMT_TABLE_STREAM_RECALCULATES;	434✔
133	} else if (strncasecmp(name, TSDB_INS_TABLE_USER_PRIVILEGES, len) == 0) {	613,884✔
134	type = TSDB_MGMT_TABLE_PRIVILEGES;	20,129✔
135	} else if (strncasecmp(name, TSDB_INS_TABLE_VIEWS, len) == 0) {	593,755✔
136	type = TSDB_MGMT_TABLE_VIEWS;	33,057✔
137	} else if (strncasecmp(name, TSDB_INS_TABLE_COMPACTS, len) == 0) {	560,698✔
138	type = TSDB_MGMT_TABLE_COMPACT;	364,659✔
139	} else if (strncasecmp(name, TSDB_INS_TABLE_ENCRYPT_ALGORITHMS, len) == 0) {	196,039✔
140	type = TSDB_MGMT_TABLE_ENCRYPT_ALGORITHMS;	×
141	} else if (strncasecmp(name, TSDB_INS_TABLE_SCANS, len) == 0) {	196,039✔
142	type = TSDB_MGMT_TABLE_SCAN;	5,592✔
143	} else if (strncasecmp(name, TSDB_INS_TABLE_COMPACT_DETAILS, len) == 0) {	190,447✔
144	type = TSDB_MGMT_TABLE_COMPACT_DETAIL;	32,490✔
145	} else if (strncasecmp(name, TSDB_INS_TABLE_SCAN_DETAILS, len) == 0) {	157,957✔
146	type = TSDB_MGMT_TABLE_SCAN_DETAIL;	4,484✔
147	} else if (strncasecmp(name, TSDB_INS_TABLE_SSMIGRATES, len) == 0) {	153,473✔
148	type = TSDB_MGMT_TABLE_SSMIGRATE;	×
149	} else if (strncasecmp(name, TSDB_INS_TABLE_TRANSACTION_DETAILS, len) == 0) {	153,473✔
150	type = TSDB_MGMT_TABLE_TRANSACTION_DETAIL;	1,036✔
151	} else if (strncasecmp(name, TSDB_INS_TABLE_GRANTS_FULL, len) == 0) {	152,437✔
152	type = TSDB_MGMT_TABLE_GRANTS_FULL;	2,283✔
153	} else if (strncasecmp(name, TSDB_INS_TABLE_GRANTS_LOGS, len) == 0) {	150,154✔
154	type = TSDB_MGMT_TABLE_GRANTS_LOGS;	2,283✔
155	} else if (strncasecmp(name, TSDB_INS_TABLE_MACHINES, len) == 0) {	147,871✔
156	type = TSDB_MGMT_TABLE_MACHINES;	2,643✔
157	} else if (strncasecmp(name, TSDB_INS_TABLE_ENCRYPTIONS, len) == 0) {	145,228✔
158	type = TSDB_MGMT_TABLE_ENCRYPTIONS;	876✔
159	} else if (strncasecmp(name, TSDB_INS_TABLE_TSMAS, len) == 0) {	144,352✔
160	type = TSDB_MGMT_TABLE_TSMAS;	×
161	} else if (strncasecmp(name, TSDB_INS_DISK_USAGE, len) == 0) {	144,352✔
162	type = TSDB_MGMT_TABLE_USAGE;	×
163	} else if (strncasecmp(name, TSDB_INS_TABLE_FILESETS, len) == 0) {	144,352✔
164	type = TSDB_MGMT_TABLE_FILESETS;	×
165	} else if (strncasecmp(name, TSDB_INS_TABLE_VC_COLS, len) == 0) {	144,352✔
166	type = TSDB_MGMT_TABLE_VC_COL;	×
167	} else if (strncasecmp(name, TSDB_INS_TABLE_MOUNTS, len) == 0) {	144,352✔
168	type = TSDB_MGMT_TABLE_MOUNT;	15,908✔
169	} else if (strncasecmp(name, TSDB_INS_TABLE_RSMAS, len) == 0) {	128,444✔
170	type = TSDB_MGMT_TABLE_RSMA;	34,672✔
171	} else if (strncasecmp(name, TSDB_INS_TABLE_RETENTIONS, len) == 0) {	93,772✔
172	type = TSDB_MGMT_TABLE_RETENTION;	89,044✔
173	} else if (strncasecmp(name, TSDB_INS_TABLE_RETENTION_DETAILS, len) == 0) {	4,728✔
174	type = TSDB_MGMT_TABLE_RETENTION_DETAIL;	4,728✔
175	} else {
176	mError("invalid show name:%s len:%d", name, len);	×
177	}
178
179	return type;	5,268,043✔
180	}
181
182	static SShowObj mndCreateShowObj(SMnode pMnode, SRetrieveTableReq *pReq) {	5,268,043✔
183	SShowMgmt *pMgmt = &pMnode->showMgmt;	5,268,043✔
184
185	int64_t showId = atomic_add_fetch_64(&pMgmt->showId, 1);	5,268,043✔
186	if (showId == 0) atomic_add_fetch_64(&pMgmt->showId, 1);	5,268,043✔
187
188	int32_t size = sizeof(SShowObj);	5,268,043✔
189
190	SShowObj showObj = {0};	5,268,043✔
191
192	showObj.id = showId;	5,268,043✔
193	showObj.pMnode = pMnode;	5,268,043✔
194	showObj.type = convertToRetrieveType(pReq->tb, tListLen(pReq->tb));	5,268,043✔
195	(void)memcpy(showObj.db, pReq->db, TSDB_DB_FNAME_LEN);	5,268,043✔
196	tstrncpy(showObj.filterTb, pReq->filterTb, TSDB_TABLE_NAME_LEN);	5,268,043✔
197
198	int32_t keepTime = tsShellActivityTimer * 6 * 1000;	5,268,043✔
199	SShowObj *pShow = taosCachePut(pMgmt->cache, &showId, sizeof(int64_t), &showObj, size, keepTime);	5,268,043✔
200	if (pShow == NULL) {	5,267,838✔
201	terrno = TSDB_CODE_OUT_OF_MEMORY;	×
202	mError("show:0x%" PRIx64 ", failed to put into cache since %s", showId, terrstr());	×
203	return NULL;	×
204	}
205
206	mTrace("show:0x%" PRIx64 ", is created, data:%p", showId, pShow);	5,267,838✔
207	return pShow;	5,268,043✔
208	}
209
210	static void mndFreeShowObj(SShowObj *pShow) {	5,268,043✔
211	SMnode *pMnode = pShow->pMnode;	5,268,043✔
212	SShowMgmt *pMgmt = &pMnode->showMgmt;	5,268,043✔
213
214	ShowFreeIterFp freeFp = pMgmt->freeIterFps[pShow->type];	5,268,043✔
215	if (freeFp != NULL) {	5,268,043✔
216	if (pShow->pIter != NULL) {	4,844,272✔
217	mTrace("show:0x%" PRIx64 ", is destroying, data:%p, pIter:%p, ", pShow->id, pShow, pShow->pIter);	129✔
218
219	(*freeFp)(pMnode, pShow->pIter);	129✔
220
221	pShow->pIter = NULL;	129✔
222	}
223	}
224
225	mTrace("show:0x%" PRIx64 ", is destroyed, data:%p", pShow->id, pShow);	5,268,043✔
226	}	5,268,043✔
227
228	static SShowObj mndAcquireShowObj(SMnode pMnode, int64_t showId) {	126,133✔
229	SShowMgmt *pMgmt = &pMnode->showMgmt;	126,133✔
230
231	SShowObj *pShow = taosCacheAcquireByKey(pMgmt->cache, &showId, sizeof(showId));	126,133✔
232	if (pShow == NULL) {	126,133✔
233	mError("show:0x%" PRIx64 ", already destroyed", showId);	×
234	return NULL;	×
235	}
236
237	mTrace("show:0x%" PRIx64 ", acquired from cache, data:%p", pShow->id, pShow);	126,133✔
238	return pShow;	126,133✔
239	}
240
241	static void mndReleaseShowObj(SShowObj *pShow, bool forceRemove) {	5,392,028✔
242	if (pShow == NULL) return;	5,392,028✔
243	mTrace("show:0x%" PRIx64 ", released from cache, data:%p force:%d", pShow->id, pShow, forceRemove);	5,392,028✔
244
245	// A bug in tcache.c
246	forceRemove = 0;	5,392,028✔
247
248	SMnode *pMnode = pShow->pMnode;	5,392,028✔
249	SShowMgmt *pMgmt = &pMnode->showMgmt;	5,392,028✔
250	taosCacheRelease(pMgmt->cache, (void **)(&pShow), forceRemove);	5,392,028✔
251	}
252
253	static int32_t mndProcessRetrieveSysTableReq(SRpcMsg *pReq) {	5,394,176✔
254	int32_t code = 0;	5,394,176✔
255	SMnode *pMnode = pReq->info.node;	5,394,176✔
256	SShowMgmt *pMgmt = &pMnode->showMgmt;	5,394,176✔
257	SShowObj *pShow = NULL;	5,394,176✔
258	int32_t rowsToRead = SHOW_STEP_SIZE;	5,394,176✔
259	int32_t size = 0;	5,394,176✔
260	int32_t rowsRead = 0;	5,394,176✔
261	mDebug("mndProcessRetrieveSysTableReq start");	5,394,176✔
262	SRetrieveTableReq retrieveReq = {0};	5,394,176✔
263	TAOS_CHECK_RETURN(tDeserializeSRetrieveTableReq(pReq->pCont, pReq->contLen, &retrieveReq));	5,394,176✔
264
265	mDebug("process to retrieve systable req db:%s, tb:%s, compactId:%" PRId64, retrieveReq.db, retrieveReq.tb,	5,394,176✔
266	retrieveReq.compactId);
267
268	if (retrieveReq.showId == 0) {	5,394,176✔
269	STableMetaRsp *pMeta = taosHashGet(pMnode->infosMeta, retrieveReq.tb, strlen(retrieveReq.tb));	5,268,043✔
270	if (pMeta == NULL) {	5,268,043✔
271	pMeta = taosHashGet(pMnode->perfsMeta, retrieveReq.tb, strlen(retrieveReq.tb));	544,907✔
272	if (pMeta == NULL) {	544,907✔
273	code = TSDB_CODE_PAR_TABLE_NOT_EXIST;	×
274	mError("failed to process show-retrieve req:%p since %s", pShow, tstrerror(code));	×
275	TAOS_RETURN(code);	×
276	}
277	}
278
279	pShow = mndCreateShowObj(pMnode, &retrieveReq);	5,268,043✔
280	if (pShow == NULL) {	5,268,043✔
281	code = terrno;	×
282	mError("failed to process show-meta req since %s", tstrerror(code));	×
283	TAOS_RETURN(code);	×
284	}
285
286	pShow->pMeta = pMeta;	5,268,043✔
287	pShow->numOfColumns = pShow->pMeta->numOfColumns;	5,268,043✔
288	} else {
289	pShow = mndAcquireShowObj(pMnode, retrieveReq.showId);	126,133✔
290	if (pShow == NULL) {	126,133✔
291	code = TSDB_CODE_MND_INVALID_SHOWOBJ;	×
292	mError("failed to process show-retrieve req:%p since %s", pShow, tstrerror(code));	×
293	TAOS_RETURN(code);	×
294	}
295	}
296
297	if (pShow->type == TSDB_MGMT_TABLE_COL) { // expend capacity for ins_columns	5,393,971✔
298	rowsToRead = SHOW_COLS_STEP_SIZE;	540,484✔
299	} else if (pShow->type == TSDB_MGMT_TABLE_PRIVILEGES) {	4,853,487✔
300	rowsToRead = SHOW_PRIVILEGES_STEP_SIZE;	20,129✔
301	}
302	ShowRetrieveFp retrieveFp = pMgmt->retrieveFps[pShow->type];	5,393,971✔
303	if (retrieveFp == NULL) {	5,393,766✔
304	mndReleaseShowObj(pShow, false);	×
305	code = TSDB_CODE_MSG_NOT_PROCESSED;	×
306	mError("show:0x%" PRIx64 ", failed to retrieve data since %s", pShow->id, tstrerror(code));	×
307	TAOS_RETURN(code);	×
308	}
309
310	mDebug("show:0x%" PRIx64 ", start retrieve data, type:%d", pShow->id, pShow->type);	5,393,766✔
311	if (retrieveReq.user[0] != 0) {	5,394,176✔
312	(void)memcpy(pReq->info.conn.user, retrieveReq.user, TSDB_USER_LEN);	5,394,176✔
313	} else {
314	(void)memcpy(pReq->info.conn.user, TSDB_DEFAULT_USER, strlen(TSDB_DEFAULT_USER) + 1);	×
315	}
316	code = -1;	5,394,176✔
317	if (retrieveReq.db[0] &&	7,571,870✔
318	(code = mndCheckShowPrivilege(pMnode, pReq->info.conn.user, pShow->type, retrieveReq.db)) != 0) {	2,177,694✔
319	TAOS_RETURN(code);	2,148✔
320	}
321	if (pShow->type == TSDB_MGMT_TABLE_USER_FULL) {	5,392,028✔
322	if (strcmp(pReq->info.conn.user, "root") != 0) {	×
323	mError("The operation is not permitted, user:%s, pShow->type:%d", pReq->info.conn.user, pShow->type);	×
324	code = TSDB_CODE_MND_NO_RIGHTS;	×
325	TAOS_RETURN(code);	×
326	}
327	}
328
329	int32_t numOfCols = pShow->pMeta->numOfColumns;	5,392,028✔
330
331	SSDataBlock *pBlock = NULL;	5,392,028✔
332	code = createDataBlock(&pBlock);	5,392,028✔
333	if (code) {	5,392,028✔
334	TAOS_RETURN(code);	×
335	}
336
337	for (int32_t i = 0; i < numOfCols; ++i) {	75,142,085✔
338	SColumnInfoData idata = {0};	69,750,262✔
339
340	SSchema *p = &pShow->pMeta->pSchemas[i];	69,750,262✔
341
342	idata.info.bytes = p->bytes;	69,750,262✔
343	idata.info.type = p->type;	69,750,262✔
344	idata.info.colId = p->colId;	69,750,262✔
345	TAOS_CHECK_RETURN(blockDataAppendColInfo(pBlock, &idata));	69,750,262✔
346	}
347
348	TAOS_CHECK_RETURN(blockDataEnsureCapacity(pBlock, rowsToRead));	5,391,823✔
349
350	if (mndCheckRetrieveFinished(pShow)) {	5,392,028✔
351	mDebug("show:0x%" PRIx64 ", read finished, numOfRows:%d", pShow->id, pShow->numOfRows);	×
352	rowsRead = 0;	×
353	} else {
354	rowsRead = (*retrieveFp)(pReq, pShow, pBlock, rowsToRead);	5,392,028✔
355	if (rowsRead < 0) {	5,392,028✔
356	code = rowsRead;	2,323✔
357	mDebug("show:0x%" PRIx64 ", retrieve completed", pShow->id);	2,323✔
358	mndReleaseShowObj(pShow, true);	2,323✔
359	blockDataDestroy(pBlock);	2,323✔
360	TAOS_RETURN(code);	2,323✔
361	}
362
363	pBlock->info.rows = rowsRead;	5,389,705✔
364	mDebug("show:0x%" PRIx64 ", stop retrieve data, rowsRead:%d numOfRows:%d", pShow->id, rowsRead, pShow->numOfRows);	5,389,705✔
365	}
366
367	size_t dataEncodeBufSize = blockGetEncodeSize(pBlock);	5,389,705✔
368	size = sizeof(SRetrieveMetaTableRsp) + sizeof(int32_t) + sizeof(SSysTableSchema) * pShow->pMeta->numOfColumns +	5,389,705✔
369	dataEncodeBufSize;
370
371	SRetrieveMetaTableRsp *pRsp = rpcMallocCont(size);	5,389,500✔
372	if (pRsp == NULL) {	5,389,705✔
373	mError("show:0x%" PRIx64 ", failed to retrieve data since %s", pShow->id, tstrerror(terrno));	×
374	code = terrno;	×
375	goto _exit;	×
376	}
377
378	pRsp->handle = htobe64(pShow->id);	5,389,705✔
379
380	if (rowsRead > 0) {	5,389,705✔
381	char *pStart = pRsp->data;	5,035,757✔
382	SSchema *ps = pShow->pMeta->pSchemas;	5,035,757✔
383
384	(int32_t )pStart = htonl(pShow->pMeta->numOfColumns);	5,035,757✔
385	pStart += sizeof(int32_t); // number of columns	5,035,757✔
386
387	for (int32_t i = 0; i < pShow->pMeta->numOfColumns; ++i) {	71,503,827✔
388	SSysTableSchema pSchema = (SSysTableSchema )pStart;	66,468,070✔
389	pSchema->bytes = htonl(ps[i].bytes);	66,468,070✔
390	pSchema->colId = htons(ps[i].colId);	66,468,070✔
391	pSchema->type = ps[i].type;	66,467,865✔
392
393	pStart += sizeof(SSysTableSchema);	66,467,865✔
394	}
395
396	int32_t len = blockEncode(pBlock, pStart, dataEncodeBufSize, pShow->pMeta->numOfColumns);	5,035,757✔
397	if (len < 0) {	5,035,757✔
398	mError("show:0x%" PRIx64 ", failed to retrieve data since %s", pShow->id, tstrerror(terrno));	×
399	code = terrno;	×
400	return code;	×
401	}
402	}
403
404	pRsp->numOfRows = htonl(rowsRead);	5,389,705✔
405	pRsp->precision = TSDB_TIME_PRECISION_MILLI; // millisecond time precision	5,389,705✔
406	pReq->info.rsp = pRsp;	5,389,705✔
407	pReq->info.rspLen = size;	5,389,705✔
408
409	if (rowsRead == 0 \|\| mndCheckRetrieveFinished(pShow)) {	5,389,705✔
410	pRsp->completed = 1;	5,263,443✔
411	mDebug("show:0x%" PRIx64 ", retrieve completed", pShow->id);	5,263,443✔
412	mndReleaseShowObj(pShow, true);	5,263,443✔
413	} else {
414	mDebug("show:0x%" PRIx64 ", retrieve not completed yet", pShow->id);	126,262✔
415	mndReleaseShowObj(pShow, false);	126,262✔
416	}
417
418	blockDataDestroy(pBlock);	5,389,705✔
419	return TSDB_CODE_SUCCESS;	5,389,705✔
420	_exit:	×
421	mndReleaseShowObj(pShow, false);	×
422	blockDataDestroy(pBlock);	×
423	if (pRsp) {	×
424	rpcFreeCont(pRsp);	×
425	}
426	return code;	×
427	}
428
429	static bool mndCheckRetrieveFinished(SShowObj *pShow) {	10,427,785✔
430	if (pShow->pIter == NULL && pShow->numOfRows != 0) {	10,427,785✔
431	return true;	4,909,495✔
432	}
433	return false;	5,518,290✔
434	}
435
436	void mndAddShowRetrieveHandle(SMnode *pMnode, EShowType showType, ShowRetrieveFp fp) {	24,633,133✔
437	SShowMgmt *pMgmt = &pMnode->showMgmt;	24,633,133✔
438	pMgmt->retrieveFps[showType] = fp;	24,633,133✔
439	}	24,633,133✔
440
441	void mndAddShowFreeIterHandle(SMnode *pMnode, EShowType showType, ShowFreeIterFp fp) {	20,108,680✔
442	SShowMgmt *pMgmt = &pMnode->showMgmt;	20,108,680✔
443	pMgmt->freeIterFps[showType] = fp;	20,108,680✔
444	}	20,108,680✔

taosdata / TDengine / #4875

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