#4899

Committed 27 Dec 2025 07:32AM UTC coverage: 65.534% (+0.5%) from 65.061%

Build # #4899

Build Type

push

travis-ci

Committed by

web-flow

Commit Message

test: remove semaphore test (#34071)

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80.89

/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_TOKENS, len) == 0) {
    type = TSDB_MGMT_TABLE_TOKEN;
  } 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_ENCRYPT_STATUS, len) == 0) {
    type = TSDB_MGMT_TABLE_ENCRYPT_STATUS;
  } 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, RPC_MSG_USER(pReq), RPC_MSG_TOKEN(pReq), pShow->type, retrieveReq.db)) != 0) {
    TAOS_RETURN(code);
  }
  if (pShow->type == TSDB_MGMT_TABLE_USER_FULL) {
    if (strcmp(RPC_MSG_USER(pReq), "root") != 0) {
      mError("The operation is not permitted, user:%s, pShow->type:%d", RPC_MSG_USER(pReq), 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) {	384,813✔
34	int32_t code = 0;	384,813✔
35	SShowMgmt *pMgmt = &pMnode->showMgmt;	384,813✔
36
37	pMgmt->cache = taosCacheInit(TSDB_DATA_TYPE_INT, 5000, true, (__cache_free_fn_t)mndFreeShowObj, "show");	384,813✔
38	if (pMgmt->cache == NULL) {	384,813✔
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);	384,813✔
45	TAOS_RETURN(code);	384,813✔
46	}
47
48	void mndCleanupShow(SMnode *pMnode) {	384,751✔
49	SShowMgmt *pMgmt = &pMnode->showMgmt;	384,751✔
50	if (pMgmt->cache != NULL) {	384,751✔
51	taosCacheCleanup(pMgmt->cache);	384,751✔
52	pMgmt->cache = NULL;	384,751✔
53	}
54	}	384,751✔
55
56	static int32_t convertToRetrieveType(char *name, int32_t len) {	4,118,756✔
57	int32_t type = -1;	4,118,756✔
58
59	if (strncasecmp(name, TSDB_INS_TABLE_DNODES, len) == 0) {	4,118,756✔
60	type = TSDB_MGMT_TABLE_DNODE;	687,892✔
61	} else if (strncasecmp(name, TSDB_INS_TABLE_MNODES, len) == 0) {	3,430,864✔
62	type = TSDB_MGMT_TABLE_MNODE;	288,734✔
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) {	3,142,130✔
68	type = TSDB_MGMT_TABLE_QNODE;	3,316✔
69	} else if (strncasecmp(name, TSDB_INS_TABLE_SNODES, len) == 0) {	3,138,814✔
70	type = TSDB_MGMT_TABLE_SNODE;	83,577✔
71	} else if (strncasecmp(name, TSDB_INS_TABLE_ANODES, len) == 0) {	3,055,237✔
72	type = TSDB_MGMT_TABLE_ANODE;	151✔
73	} else if (strncasecmp(name, TSDB_INS_TABLE_ANODES_FULL, len) == 0) {	3,055,086✔
74	type = TSDB_MGMT_TABLE_ANODE_FULL;	×
75	} else if (strncasecmp(name, TSDB_INS_TABLE_BNODES, len) == 0) {	3,055,086✔
76	type = TSDB_MGMT_TABLE_BNODE;	67,532✔
77	} else if (strncasecmp(name, TSDB_INS_TABLE_ARBGROUPS, len) == 0) {	2,987,554✔
78	type = TSDB_MGMT_TABLE_ARBGROUP;	×
79	} else if (strncasecmp(name, TSDB_INS_TABLE_CLUSTER, len) == 0) {	2,987,554✔
80	type = TSDB_MGMT_TABLE_CLUSTER;	1,538✔
81	} else if (strncasecmp(name, TSDB_INS_TABLE_DATABASES, len) == 0) {	2,986,016✔
82	type = TSDB_MGMT_TABLE_DB;	417,426✔
83	} else if (strncasecmp(name, TSDB_INS_TABLE_FUNCTIONS, len) == 0) {	2,568,590✔
84	type = TSDB_MGMT_TABLE_FUNC;	7,452✔
85	} else if (strncasecmp(name, TSDB_INS_TABLE_INDEXES, len) == 0) {	2,561,138✔
86	type = TSDB_MGMT_TABLE_INDEX;	6,355✔
87	} else if (strncasecmp(name, TSDB_INS_TABLE_STABLES, len) == 0) {	2,554,783✔
88	type = TSDB_MGMT_TABLE_STB;	241,089✔
89	} else if (strncasecmp(name, TSDB_INS_TABLE_TABLES, len) == 0) {	2,313,694✔
90	type = TSDB_MGMT_TABLE_TABLE;	×
91	} else if (strncasecmp(name, TSDB_INS_TABLE_TAGS, len) == 0) {	2,313,694✔
92	type = TSDB_MGMT_TABLE_TAG;	×
93	} else if (strncasecmp(name, TSDB_INS_TABLE_COLS, len) == 0) {	2,313,694✔
94	type = TSDB_MGMT_TABLE_COL;	839,763✔
95	} else if (strncasecmp(name, TSDB_INS_TABLE_TABLE_DISTRIBUTED, len) == 0) {	1,473,931✔
96	// type = TSDB_MGMT_TABLE_DIST;
97	} else if (strncasecmp(name, TSDB_INS_TABLE_USERS, len) == 0) {	1,473,931✔
98	type = TSDB_MGMT_TABLE_USER;	8,081✔
99	} else if (strncasecmp(name, TSDB_INS_TABLE_USERS_FULL, len) == 0) {	1,465,850✔
100	type = TSDB_MGMT_TABLE_USER_FULL;	×
101	} else if (strncasecmp(name, TSDB_INS_TABLE_TOKENS, len) == 0) {	1,465,850✔
102	type = TSDB_MGMT_TABLE_TOKEN;	×
103	} else if (strncasecmp(name, TSDB_INS_TABLE_LICENCES, len) == 0) {	1,465,850✔
104	type = TSDB_MGMT_TABLE_GRANTS;	1,748✔
105	} else if (strncasecmp(name, TSDB_INS_TABLE_VGROUPS, len) == 0) {	1,464,102✔
106	type = TSDB_MGMT_TABLE_VGROUP;	235,017✔
107	} else if (strncasecmp(name, TSDB_PERFS_TABLE_CONSUMERS, len) == 0) {	1,229,085✔
108	type = TSDB_MGMT_TABLE_CONSUMERS;	14,465✔
109	} else if (strncasecmp(name, TSDB_INS_TABLE_SUBSCRIPTIONS, len) == 0) {	1,214,620✔
110	type = TSDB_MGMT_TABLE_SUBSCRIPTIONS;	21,615✔
111	} else if (strncasecmp(name, TSDB_PERFS_TABLE_TRANS, len) == 0) {	1,193,005✔
112	type = TSDB_MGMT_TABLE_TRANS;	329,851✔
113	} else if (strncasecmp(name, TSDB_PERFS_TABLE_SMAS, len) == 0) {	863,154✔
114	type = TSDB_MGMT_TABLE_SMAS;	×
115	} else if (strncasecmp(name, TSDB_INS_TABLE_CONFIGS, len) == 0) {	863,154✔
116	type = TSDB_MGMT_TABLE_CONFIGS;	1,057✔
117	} else if (strncasecmp(name, TSDB_PERFS_TABLE_CONNECTIONS, len) == 0) {	862,097✔
118	type = TSDB_MGMT_TABLE_CONNS;	11,454✔
119	} else if (strncasecmp(name, TSDB_PERFS_TABLE_QUERIES, len) == 0) {	850,643✔
120	type = TSDB_MGMT_TABLE_QUERIES;	2,561✔
121	} else if (strncasecmp(name, TSDB_INS_TABLE_VNODES, len) == 0) {	848,082✔
122	type = TSDB_MGMT_TABLE_VNODES;	16,133✔
123	} else if (strncasecmp(name, TSDB_INS_TABLE_TOPICS, len) == 0) {	831,949✔
124	type = TSDB_MGMT_TABLE_TOPICS;	16,495✔
125	} else if (strncasecmp(name, TSDB_INS_TABLE_STREAMS, len) == 0) {	815,454✔
126	type = TSDB_MGMT_TABLE_STREAMS;	209,789✔
127	} else if (strncasecmp(name, TSDB_PERFS_TABLE_APPS, len) == 0) {	605,665✔
128	type = TSDB_MGMT_TABLE_APPS;	2,590✔
129	} else if (strncasecmp(name, TSDB_PERFS_TABLE_INSTANCES, len) == 0) {	603,075✔
130	type = TSDB_MGMT_TABLE_INSTANCE;	×
131	} else if (strncasecmp(name, TSDB_INS_TABLE_STREAM_TASKS, len) == 0) {	603,075✔
132	type = TSDB_MGMT_TABLE_STREAM_TASKS;	142,653✔
133	} else if (strncasecmp(name, TSDB_INS_TABLE_STREAM_RECALCULATES, len) == 0) {	460,422✔
134	type = TSDB_MGMT_TABLE_STREAM_RECALCULATES;	227✔
135	} else if (strncasecmp(name, TSDB_INS_TABLE_USER_PRIVILEGES, len) == 0) {	460,195✔
136	type = TSDB_MGMT_TABLE_PRIVILEGES;	10,484✔
137	} else if (strncasecmp(name, TSDB_INS_TABLE_VIEWS, len) == 0) {	449,711✔
138	type = TSDB_MGMT_TABLE_VIEWS;	24,184✔
139	} else if (strncasecmp(name, TSDB_INS_TABLE_COMPACTS, len) == 0) {	425,527✔
140	type = TSDB_MGMT_TABLE_COMPACT;	322,739✔
141	} else if (strncasecmp(name, TSDB_INS_TABLE_ENCRYPT_ALGORITHMS, len) == 0) {	102,788✔
142	type = TSDB_MGMT_TABLE_ENCRYPT_ALGORITHMS;	×
143	} else if (strncasecmp(name, TSDB_INS_TABLE_ENCRYPT_STATUS, len) == 0) {	102,788✔
144	type = TSDB_MGMT_TABLE_ENCRYPT_STATUS;	×
145	} else if (strncasecmp(name, TSDB_INS_TABLE_SCANS, len) == 0) {	102,788✔
146	type = TSDB_MGMT_TABLE_SCAN;	1,890✔
147	} else if (strncasecmp(name, TSDB_INS_TABLE_COMPACT_DETAILS, len) == 0) {	100,898✔
148	type = TSDB_MGMT_TABLE_COMPACT_DETAIL;	31,310✔
149	} else if (strncasecmp(name, TSDB_INS_TABLE_SCAN_DETAILS, len) == 0) {	69,588✔
150	type = TSDB_MGMT_TABLE_SCAN_DETAIL;	1,680✔
151	} else if (strncasecmp(name, TSDB_INS_TABLE_SSMIGRATES, len) == 0) {	67,908✔
152	type = TSDB_MGMT_TABLE_SSMIGRATE;	×
153	} else if (strncasecmp(name, TSDB_INS_TABLE_TRANSACTION_DETAILS, len) == 0) {	67,908✔
154	type = TSDB_MGMT_TABLE_TRANSACTION_DETAIL;	416✔
155	} else if (strncasecmp(name, TSDB_INS_TABLE_GRANTS_FULL, len) == 0) {	67,492✔
156	type = TSDB_MGMT_TABLE_GRANTS_FULL;	906✔
157	} else if (strncasecmp(name, TSDB_INS_TABLE_GRANTS_LOGS, len) == 0) {	66,586✔
158	type = TSDB_MGMT_TABLE_GRANTS_LOGS;	906✔
159	} else if (strncasecmp(name, TSDB_INS_TABLE_MACHINES, len) == 0) {	65,680✔
160	type = TSDB_MGMT_TABLE_MACHINES;	1,064✔
161	} else if (strncasecmp(name, TSDB_INS_TABLE_ENCRYPTIONS, len) == 0) {	64,616✔
162	type = TSDB_MGMT_TABLE_ENCRYPTIONS;	158✔
163	} else if (strncasecmp(name, TSDB_INS_TABLE_TSMAS, len) == 0) {	64,458✔
164	type = TSDB_MGMT_TABLE_TSMAS;	×
165	} else if (strncasecmp(name, TSDB_INS_DISK_USAGE, len) == 0) {	64,458✔
166	type = TSDB_MGMT_TABLE_USAGE;	×
167	} else if (strncasecmp(name, TSDB_INS_TABLE_FILESETS, len) == 0) {	64,458✔
168	type = TSDB_MGMT_TABLE_FILESETS;	×
169	} else if (strncasecmp(name, TSDB_INS_TABLE_VC_COLS, len) == 0) {	64,458✔
170	type = TSDB_MGMT_TABLE_VC_COL;	×
171	} else if (strncasecmp(name, TSDB_INS_TABLE_MOUNTS, len) == 0) {	64,458✔
172	type = TSDB_MGMT_TABLE_MOUNT;	5,611✔
173	} else if (strncasecmp(name, TSDB_INS_TABLE_RSMAS, len) == 0) {	58,847✔
174	type = TSDB_MGMT_TABLE_RSMA;	15,598✔
175	} else if (strncasecmp(name, TSDB_INS_TABLE_RETENTIONS, len) == 0) {	43,249✔
176	type = TSDB_MGMT_TABLE_RETENTION;	41,122✔
177	} else if (strncasecmp(name, TSDB_INS_TABLE_RETENTION_DETAILS, len) == 0) {	2,127✔
178	type = TSDB_MGMT_TABLE_RETENTION_DETAIL;	2,127✔
179	} else {
180	mError("invalid show name:%s len:%d", name, len);	×
181	}
182
183	return type;	4,118,756✔
184	}
185
186	static SShowObj mndCreateShowObj(SMnode pMnode, SRetrieveTableReq *pReq) {	4,118,756✔
187	SShowMgmt *pMgmt = &pMnode->showMgmt;	4,118,756✔
188
189	int64_t showId = atomic_add_fetch_64(&pMgmt->showId, 1);	4,118,756✔
190	if (showId == 0) atomic_add_fetch_64(&pMgmt->showId, 1);	4,118,756✔
191
192	int32_t size = sizeof(SShowObj);	4,118,756✔
193
194	SShowObj showObj = {0};	4,118,756✔
195
196	showObj.id = showId;	4,118,756✔
197	showObj.pMnode = pMnode;	4,118,756✔
198	showObj.type = convertToRetrieveType(pReq->tb, tListLen(pReq->tb));	4,118,756✔
199	(void)memcpy(showObj.db, pReq->db, TSDB_DB_FNAME_LEN);	4,118,756✔
200	tstrncpy(showObj.filterTb, pReq->filterTb, TSDB_TABLE_NAME_LEN);	4,118,756✔
201
202	int32_t keepTime = tsShellActivityTimer * 6 * 1000;	4,118,756✔
203	SShowObj *pShow = taosCachePut(pMgmt->cache, &showId, sizeof(int64_t), &showObj, size, keepTime);	4,118,756✔
204	if (pShow == NULL) {	4,118,756✔
205	terrno = TSDB_CODE_OUT_OF_MEMORY;	×
206	mError("show:0x%" PRIx64 ", failed to put into cache since %s", showId, terrstr());	×
207	return NULL;	×
208	}
209
210	mTrace("show:0x%" PRIx64 ", is created, data:%p", showId, pShow);	4,118,756✔
211	return pShow;	4,118,756✔
212	}
213
214	static void mndFreeShowObj(SShowObj *pShow) {	4,118,756✔
215	SMnode *pMnode = pShow->pMnode;	4,118,756✔
216	SShowMgmt *pMgmt = &pMnode->showMgmt;	4,118,756✔
217
218	ShowFreeIterFp freeFp = pMgmt->freeIterFps[pShow->type];	4,118,756✔
219	if (freeFp != NULL) {	4,118,756✔
220	if (pShow->pIter != NULL) {	3,736,979✔
221	mTrace("show:0x%" PRIx64 ", is destroying, data:%p, pIter:%p, ", pShow->id, pShow, pShow->pIter);	×
222
223	(*freeFp)(pMnode, pShow->pIter);	×
224
225	pShow->pIter = NULL;	×
226	}
227	}
228
229	mTrace("show:0x%" PRIx64 ", is destroyed, data:%p", pShow->id, pShow);	4,118,756✔
230	}	4,118,756✔
231
232	static SShowObj mndAcquireShowObj(SMnode pMnode, int64_t showId) {	76,942✔
233	SShowMgmt *pMgmt = &pMnode->showMgmt;	76,942✔
234
235	SShowObj *pShow = taosCacheAcquireByKey(pMgmt->cache, &showId, sizeof(showId));	76,942✔
236	if (pShow == NULL) {	76,942✔
237	mError("show:0x%" PRIx64 ", already destroyed", showId);	×
238	return NULL;	×
239	}
240
241	mTrace("show:0x%" PRIx64 ", acquired from cache, data:%p", pShow->id, pShow);	76,942✔
242	return pShow;	76,942✔
243	}
244
245	static void mndReleaseShowObj(SShowObj *pShow, bool forceRemove) {	4,194,816✔
246	if (pShow == NULL) return;	4,194,816✔
247	mTrace("show:0x%" PRIx64 ", released from cache, data:%p force:%d", pShow->id, pShow, forceRemove);	4,194,816✔
248
249	// A bug in tcache.c
250	forceRemove = 0;	4,194,816✔
251
252	SMnode *pMnode = pShow->pMnode;	4,194,816✔
253	SShowMgmt *pMgmt = &pMnode->showMgmt;	4,194,816✔
254	taosCacheRelease(pMgmt->cache, (void **)(&pShow), forceRemove);	4,194,816✔
255	}
256
257	static int32_t mndProcessRetrieveSysTableReq(SRpcMsg *pReq) {	4,195,698✔
258	int32_t code = 0;	4,195,698✔
259	SMnode *pMnode = pReq->info.node;	4,195,698✔
260	SShowMgmt *pMgmt = &pMnode->showMgmt;	4,195,698✔
261	SShowObj *pShow = NULL;	4,195,225✔
262	int32_t rowsToRead = SHOW_STEP_SIZE;	4,195,225✔
263	int32_t size = 0;	4,195,225✔
264	int32_t rowsRead = 0;	4,195,225✔
265	mDebug("mndProcessRetrieveSysTableReq start");	4,195,225✔
266	SRetrieveTableReq retrieveReq = {0};	4,195,698✔
267	TAOS_CHECK_RETURN(tDeserializeSRetrieveTableReq(pReq->pCont, pReq->contLen, &retrieveReq));	4,195,698✔
268
269	mDebug("process to retrieve systable req db:%s, tb:%s, compactId:%" PRId64, retrieveReq.db, retrieveReq.tb,	4,195,698✔
270	retrieveReq.compactId);
271
272	if (retrieveReq.showId == 0) {	4,195,698✔
273	STableMetaRsp *pMeta = taosHashGet(pMnode->infosMeta, retrieveReq.tb, strlen(retrieveReq.tb));	4,118,756✔
274	if (pMeta == NULL) {	4,118,756✔
275	pMeta = taosHashGet(pMnode->perfsMeta, retrieveReq.tb, strlen(retrieveReq.tb));	360,921✔
276	if (pMeta == NULL) {	360,921✔
277	code = TSDB_CODE_PAR_TABLE_NOT_EXIST;	×
278	mError("failed to process show-retrieve req:%p since %s", pShow, tstrerror(code));	×
279	TAOS_RETURN(code);	×
280	}
281	}
282
283	pShow = mndCreateShowObj(pMnode, &retrieveReq);	4,118,756✔
284	if (pShow == NULL) {	4,118,756✔
285	code = terrno;	×
286	mError("failed to process show-meta req since %s", tstrerror(code));	×
287	TAOS_RETURN(code);	×
288	}
289
290	pShow->pMeta = pMeta;	4,118,756✔
291	pShow->numOfColumns = pShow->pMeta->numOfColumns;	4,118,756✔
292	} else {
293	pShow = mndAcquireShowObj(pMnode, retrieveReq.showId);	76,942✔
294	if (pShow == NULL) {	76,942✔
295	code = TSDB_CODE_MND_INVALID_SHOWOBJ;	×
296	mError("failed to process show-retrieve req:%p since %s", pShow, tstrerror(code));	×
297	TAOS_RETURN(code);	×
298	}
299	}
300
301	if (pShow->type == TSDB_MGMT_TABLE_COL) { // expend capacity for ins_columns	4,195,698✔
302	rowsToRead = SHOW_COLS_STEP_SIZE;	839,763✔
303	} else if (pShow->type == TSDB_MGMT_TABLE_PRIVILEGES) {	3,355,935✔
304	rowsToRead = SHOW_PRIVILEGES_STEP_SIZE;	10,484✔
305	}
306	ShowRetrieveFp retrieveFp = pMgmt->retrieveFps[pShow->type];	4,195,698✔
307	if (retrieveFp == NULL) {	4,195,698✔
308	mndReleaseShowObj(pShow, false);	×
309	code = TSDB_CODE_MSG_NOT_PROCESSED;	×
310	mError("show:0x%" PRIx64 ", failed to retrieve data since %s", pShow->id, tstrerror(code));	×
311	TAOS_RETURN(code);	×
312	}
313
314	mDebug("show:0x%" PRIx64 ", start retrieve data, type:%d", pShow->id, pShow->type);	4,195,698✔
315	if (retrieveReq.user[0] != 0) {	4,195,698✔
316	(void)memcpy(pReq->info.conn.user, retrieveReq.user, TSDB_USER_LEN);	4,195,698✔
317	} else {
318	(void)memcpy(pReq->info.conn.user, TSDB_DEFAULT_USER, strlen(TSDB_DEFAULT_USER) + 1);	×
319	}
320	code = -1;	4,195,698✔
321	if (retrieveReq.db[0] &&	5,739,067✔
322	(code = mndCheckShowPrivilege(pMnode, RPC_MSG_USER(pReq), RPC_MSG_TOKEN(pReq), pShow->type, retrieveReq.db)) != 0) {	1,543,369✔
323	TAOS_RETURN(code);	882✔
324	}
325	if (pShow->type == TSDB_MGMT_TABLE_USER_FULL) {	4,194,816✔
326	if (strcmp(RPC_MSG_USER(pReq), "root") != 0) {	×
327	mError("The operation is not permitted, user:%s, pShow->type:%d", RPC_MSG_USER(pReq), pShow->type);	×
328	code = TSDB_CODE_MND_NO_RIGHTS;	×
329	TAOS_RETURN(code);	×
330	}
331	}
332
333	int32_t numOfCols = pShow->pMeta->numOfColumns;	4,194,816✔
334
335	SSDataBlock *pBlock = NULL;	4,194,816✔
336	code = createDataBlock(&pBlock);	4,194,816✔
337	if (code) {	4,194,816✔
338	TAOS_RETURN(code);	×
339	}
340
341	for (int32_t i = 0; i < numOfCols; ++i) {	57,422,047✔
342	SColumnInfoData idata = {0};	53,227,231✔
343
344	SSchema *p = &pShow->pMeta->pSchemas[i];	53,227,231✔
345
346	idata.info.bytes = p->bytes;	53,227,231✔
347	idata.info.type = p->type;	53,227,231✔
348	idata.info.colId = p->colId;	53,227,231✔
349	TAOS_CHECK_RETURN(blockDataAppendColInfo(pBlock, &idata));	53,227,231✔
350	}
351
352	TAOS_CHECK_RETURN(blockDataEnsureCapacity(pBlock, rowsToRead));	4,194,816✔
353
354	if (mndCheckRetrieveFinished(pShow)) {	4,194,816✔
355	mDebug("show:0x%" PRIx64 ", read finished, numOfRows:%d", pShow->id, pShow->numOfRows);	×
356	rowsRead = 0;	×
357	} else {
358	rowsRead = (*retrieveFp)(pReq, pShow, pBlock, rowsToRead);	4,194,816✔
359	if (rowsRead < 0) {	4,193,870✔
360	code = rowsRead;	1,588✔
361	mDebug("show:0x%" PRIx64 ", retrieve completed", pShow->id);	1,588✔
362	mndReleaseShowObj(pShow, true);	1,588✔
363	blockDataDestroy(pBlock);	1,588✔
364	TAOS_RETURN(code);	1,588✔
365	}
366
367	pBlock->info.rows = rowsRead;	4,192,282✔
368	mDebug("show:0x%" PRIx64 ", stop retrieve data, rowsRead:%d numOfRows:%d", pShow->id, rowsRead, pShow->numOfRows);	4,193,228✔
369	}
370
371	size_t dataEncodeBufSize = blockGetEncodeSize(pBlock);	4,193,228✔
372	size = sizeof(SRetrieveMetaTableRsp) + sizeof(int32_t) + sizeof(SSysTableSchema) * pShow->pMeta->numOfColumns +	4,193,228✔
373	dataEncodeBufSize;
374
375	SRetrieveMetaTableRsp *pRsp = rpcMallocCont(size);	4,193,228✔
376	if (pRsp == NULL) {	4,193,228✔
377	mError("show:0x%" PRIx64 ", failed to retrieve data since %s", pShow->id, tstrerror(terrno));	×
378	code = terrno;	×
379	goto _exit;	×
380	}
381
382	pRsp->handle = htobe64(pShow->id);	4,193,228✔
383
384	if (rowsRead > 0) {	4,193,228✔
385	char *pStart = pRsp->data;	3,949,731✔
386	SSchema *ps = pShow->pMeta->pSchemas;	3,949,731✔
387
388	(int32_t )pStart = htonl(pShow->pMeta->numOfColumns);	3,949,731✔
389	pStart += sizeof(int32_t); // number of columns	3,949,731✔
390
391	for (int32_t i = 0; i < pShow->pMeta->numOfColumns; ++i) {	54,901,118✔
392	SSysTableSchema pSchema = (SSysTableSchema )pStart;	50,951,387✔
393	pSchema->bytes = htonl(ps[i].bytes);	50,951,387✔
394	pSchema->colId = htons(ps[i].colId);	50,951,728✔
395	pSchema->type = ps[i].type;	50,951,728✔
396
397	pStart += sizeof(SSysTableSchema);	50,951,387✔
398	}
399
400	int32_t len = blockEncode(pBlock, pStart, dataEncodeBufSize, pShow->pMeta->numOfColumns);	3,949,731✔
401	if (len < 0) {	3,949,390✔
402	mError("show:0x%" PRIx64 ", failed to retrieve data since %s", pShow->id, tstrerror(terrno));	×
403	code = terrno;	×
404	return code;	×
405	}
406	}
407
408	pRsp->numOfRows = htonl(rowsRead);	4,192,887✔
409	pRsp->precision = TSDB_TIME_PRECISION_MILLI; // millisecond time precision	4,193,228✔
410	pReq->info.rsp = pRsp;	4,193,228✔
411	pReq->info.rspLen = size;	4,193,228✔
412
413	if (rowsRead == 0 \|\| mndCheckRetrieveFinished(pShow)) {	4,192,887✔
414	pRsp->completed = 1;	4,115,945✔
415	mDebug("show:0x%" PRIx64 ", retrieve completed", pShow->id);	4,116,286✔
416	mndReleaseShowObj(pShow, true);	4,116,286✔
417	} else {
418	mDebug("show:0x%" PRIx64 ", retrieve not completed yet", pShow->id);	76,942✔
419	mndReleaseShowObj(pShow, false);	76,942✔
420	}
421
422	blockDataDestroy(pBlock);	4,193,228✔
423	return TSDB_CODE_SUCCESS;	4,193,228✔
424	_exit:	×
425	mndReleaseShowObj(pShow, false);	×
426	blockDataDestroy(pBlock);	×
427	if (pRsp) {	×
428	rpcFreeCont(pRsp);	×
429	}
430	return code;	×
431	}
432
433	static bool mndCheckRetrieveFinished(SShowObj *pShow) {	8,144,547✔
434	if (pShow->pIter == NULL && pShow->numOfRows != 0) {	8,144,547✔
435	return true;	3,872,448✔
436	}
437	return false;	4,271,758✔
438	}
439
440	void mndAddShowRetrieveHandle(SMnode *pMnode, EShowType showType, ShowRetrieveFp fp) {	19,625,463✔
441	SShowMgmt *pMgmt = &pMnode->showMgmt;	19,625,463✔
442	pMgmt->retrieveFps[showType] = fp;	19,625,463✔
443	}	19,625,463✔
444
445	void mndAddShowFreeIterHandle(SMnode *pMnode, EShowType showType, ShowFreeIterFp fp) {	15,777,333✔
446	SShowMgmt *pMgmt = &pMnode->showMgmt;	15,777,333✔
447	pMgmt->freeIterFps[showType] = fp;	15,777,333✔
448	}	15,777,333✔

taosdata / TDengine / #4899

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