#4871

Committed 04 Dec 2025 01:55AM UTC coverage: 64.654% (+0.1%) from 64.545%

Build # #4871

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push

travis-ci

Committed by

guanshengliang

Commit Message

Merge branch '3.0' into cover/3.0

Run Details

869 of 2219 new or added lines in 36 files covered. (39.16%)

441 existing lines in 120 files now uncovered.

159620 of 246882 relevant lines covered (64.65%)

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82.47

/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_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) {	489,676✔
34	int32_t code = 0;	489,676✔
35	SShowMgmt *pMgmt = &pMnode->showMgmt;	489,676✔
36
37	pMgmt->cache = taosCacheInit(TSDB_DATA_TYPE_INT, 5000, true, (__cache_free_fn_t)mndFreeShowObj, "show");	489,676✔
38	if (pMgmt->cache == NULL) {	489,676✔
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);	489,676✔
45	TAOS_RETURN(code);	489,676✔
46	}
47
48	void mndCleanupShow(SMnode *pMnode) {	488,904✔
49	SShowMgmt *pMgmt = &pMnode->showMgmt;	488,904✔
50	if (pMgmt->cache != NULL) {	488,904✔
51	taosCacheCleanup(pMgmt->cache);	488,904✔
52	pMgmt->cache = NULL;	488,904✔
53	}
54	}	488,904✔
55
56	static int32_t convertToRetrieveType(char *name, int32_t len) {	5,099,814✔
57	int32_t type = -1;	5,099,814✔
58
59	if (strncasecmp(name, TSDB_INS_TABLE_DNODES, len) == 0) {	5,099,814✔
60	type = TSDB_MGMT_TABLE_DNODE;	874,703✔
61	} else if (strncasecmp(name, TSDB_INS_TABLE_MNODES, len) == 0) {	4,225,111✔
62	type = TSDB_MGMT_TABLE_MNODE;	357,762✔
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) {	3,867,349✔
68	type = TSDB_MGMT_TABLE_QNODE;	7,951✔
69	} else if (strncasecmp(name, TSDB_INS_TABLE_SNODES, len) == 0) {	3,859,398✔
70	type = TSDB_MGMT_TABLE_SNODE;	158,865✔
71	} else if (strncasecmp(name, TSDB_INS_TABLE_ANODES, len) == 0) {	3,700,533✔
72	type = TSDB_MGMT_TABLE_ANODE;	351✔
73	} else if (strncasecmp(name, TSDB_INS_TABLE_ANODES_FULL, len) == 0) {	3,700,182✔
74	type = TSDB_MGMT_TABLE_ANODE_FULL;	×
75	} else if (strncasecmp(name, TSDB_INS_TABLE_BNODES, len) == 0) {	3,700,182✔
76	type = TSDB_MGMT_TABLE_BNODE;	121,955✔
77	} else if (strncasecmp(name, TSDB_INS_TABLE_ARBGROUPS, len) == 0) {	3,578,227✔
78	type = TSDB_MGMT_TABLE_ARBGROUP;	×
79	} else if (strncasecmp(name, TSDB_INS_TABLE_CLUSTER, len) == 0) {	3,578,227✔
80	type = TSDB_MGMT_TABLE_CLUSTER;	3,538✔
81	} else if (strncasecmp(name, TSDB_INS_TABLE_DATABASES, len) == 0) {	3,574,689✔
82	type = TSDB_MGMT_TABLE_DB;	621,970✔
83	} else if (strncasecmp(name, TSDB_INS_TABLE_FUNCTIONS, len) == 0) {	2,952,719✔
84	type = TSDB_MGMT_TABLE_FUNC;	16,046✔
85	} else if (strncasecmp(name, TSDB_INS_TABLE_INDEXES, len) == 0) {	2,936,673✔
86	type = TSDB_MGMT_TABLE_INDEX;	14,162✔
87	} else if (strncasecmp(name, TSDB_INS_TABLE_STABLES, len) == 0) {	2,922,511✔
88	type = TSDB_MGMT_TABLE_STB;	342,660✔
89	} else if (strncasecmp(name, TSDB_INS_TABLE_TABLES, len) == 0) {	2,579,851✔
90	type = TSDB_MGMT_TABLE_TABLE;	×
91	} else if (strncasecmp(name, TSDB_INS_TABLE_TAGS, len) == 0) {	2,579,851✔
92	type = TSDB_MGMT_TABLE_TAG;	×
93	} else if (strncasecmp(name, TSDB_INS_TABLE_COLS, len) == 0) {	2,579,851✔
94	type = TSDB_MGMT_TABLE_COL;	522,385✔
95	} else if (strncasecmp(name, TSDB_INS_TABLE_TABLE_DISTRIBUTED, len) == 0) {	2,057,466✔
96	// type = TSDB_MGMT_TABLE_DIST;
97	} else if (strncasecmp(name, TSDB_INS_TABLE_USERS, len) == 0) {	2,057,466✔
98	type = TSDB_MGMT_TABLE_USER;	20,193✔
99	} else if (strncasecmp(name, TSDB_INS_TABLE_USERS_FULL, len) == 0) {	2,037,273✔
100	type = TSDB_MGMT_TABLE_USER_FULL;	×
101	} else if (strncasecmp(name, TSDB_INS_TABLE_LICENCES, len) == 0) {	2,037,273✔
102	type = TSDB_MGMT_TABLE_GRANTS;	4,163✔
103	} else if (strncasecmp(name, TSDB_INS_TABLE_VGROUPS, len) == 0) {	2,033,110✔
104	type = TSDB_MGMT_TABLE_VGROUP;	302,331✔
105	} else if (strncasecmp(name, TSDB_PERFS_TABLE_CONSUMERS, len) == 0) {	1,730,779✔
106	type = TSDB_MGMT_TABLE_CONSUMERS;	9,639✔
107	} else if (strncasecmp(name, TSDB_INS_TABLE_SUBSCRIPTIONS, len) == 0) {	1,721,140✔
108	type = TSDB_MGMT_TABLE_SUBSCRIPTIONS;	10,220✔
109	} else if (strncasecmp(name, TSDB_PERFS_TABLE_TRANS, len) == 0) {	1,710,920✔
110	type = TSDB_MGMT_TABLE_TRANS;	425,286✔
111	} else if (strncasecmp(name, TSDB_PERFS_TABLE_SMAS, len) == 0) {	1,285,634✔
112	type = TSDB_MGMT_TABLE_SMAS;	×
113	} else if (strncasecmp(name, TSDB_INS_TABLE_CONFIGS, len) == 0) {	1,285,634✔
114	type = TSDB_MGMT_TABLE_CONFIGS;	2,457✔
115	} else if (strncasecmp(name, TSDB_PERFS_TABLE_CONNECTIONS, len) == 0) {	1,283,177✔
116	type = TSDB_MGMT_TABLE_CONNS;	16,813✔
117	} else if (strncasecmp(name, TSDB_PERFS_TABLE_QUERIES, len) == 0) {	1,266,364✔
118	type = TSDB_MGMT_TABLE_QUERIES;	6,443✔
119	} else if (strncasecmp(name, TSDB_INS_TABLE_VNODES, len) == 0) {	1,259,921✔
120	type = TSDB_MGMT_TABLE_VNODES;	1,627✔
121	} else if (strncasecmp(name, TSDB_INS_TABLE_TOPICS, len) == 0) {	1,258,294✔
122	type = TSDB_MGMT_TABLE_TOPICS;	25,746✔
123	} else if (strncasecmp(name, TSDB_INS_TABLE_STREAMS, len) == 0) {	1,232,548✔
124	type = TSDB_MGMT_TABLE_STREAMS;	311,255✔
125	} else if (strncasecmp(name, TSDB_PERFS_TABLE_APPS, len) == 0) {	921,293✔
126	type = TSDB_MGMT_TABLE_APPS;	5,989✔
127	} else if (strncasecmp(name, TSDB_PERFS_TABLE_INSTANCES, len) == 0) {	915,304✔
NEW 128	type = TSDB_MGMT_TABLE_INSTANCE;	×
129	} else if (strncasecmp(name, TSDB_INS_TABLE_STREAM_TASKS, len) == 0) {	915,304✔
130	type = TSDB_MGMT_TABLE_STREAM_TASKS;	285,468✔
131	} else if (strncasecmp(name, TSDB_INS_TABLE_STREAM_RECALCULATES, len) == 0) {	629,836✔
132	type = TSDB_MGMT_TABLE_STREAM_RECALCULATES;	429✔
133	} else if (strncasecmp(name, TSDB_INS_TABLE_USER_PRIVILEGES, len) == 0) {	629,407✔
134	type = TSDB_MGMT_TABLE_PRIVILEGES;	26,205✔
135	} else if (strncasecmp(name, TSDB_INS_TABLE_VIEWS, len) == 0) {	603,202✔
136	type = TSDB_MGMT_TABLE_VIEWS;	32,197✔
137	} else if (strncasecmp(name, TSDB_INS_TABLE_COMPACTS, len) == 0) {	571,005✔
138	type = TSDB_MGMT_TABLE_COMPACT;	379,314✔
139	} else if (strncasecmp(name, TSDB_INS_TABLE_SCANS, len) == 0) {	191,691✔
140	type = TSDB_MGMT_TABLE_SCAN;	3,680✔
141	} else if (strncasecmp(name, TSDB_INS_TABLE_COMPACT_DETAILS, len) == 0) {	188,011✔
142	type = TSDB_MGMT_TABLE_COMPACT_DETAIL;	33,710✔
143	} else if (strncasecmp(name, TSDB_INS_TABLE_SCAN_DETAILS, len) == 0) {	154,301✔
144	type = TSDB_MGMT_TABLE_SCAN_DETAIL;	3,680✔
145	} else if (strncasecmp(name, TSDB_INS_TABLE_SSMIGRATES, len) == 0) {	150,621✔
146	type = TSDB_MGMT_TABLE_SSMIGRATE;	×
147	} else if (strncasecmp(name, TSDB_INS_TABLE_TRANSACTION_DETAILS, len) == 0) {	150,621✔
148	type = TSDB_MGMT_TABLE_TRANSACTION_DETAIL;	1,018✔
149	} else if (strncasecmp(name, TSDB_INS_TABLE_GRANTS_FULL, len) == 0) {	149,603✔
150	type = TSDB_MGMT_TABLE_GRANTS_FULL;	2,216✔
151	} else if (strncasecmp(name, TSDB_INS_TABLE_GRANTS_LOGS, len) == 0) {	147,387✔
152	type = TSDB_MGMT_TABLE_GRANTS_LOGS;	2,216✔
153	} else if (strncasecmp(name, TSDB_INS_TABLE_MACHINES, len) == 0) {	145,171✔
154	type = TSDB_MGMT_TABLE_MACHINES;	2,574✔
155	} else if (strncasecmp(name, TSDB_INS_TABLE_ENCRYPTIONS, len) == 0) {	142,597✔
156	type = TSDB_MGMT_TABLE_ENCRYPTIONS;	795✔
157	} else if (strncasecmp(name, TSDB_INS_TABLE_TSMAS, len) == 0) {	141,802✔
158	type = TSDB_MGMT_TABLE_TSMAS;	×
159	} else if (strncasecmp(name, TSDB_INS_DISK_USAGE, len) == 0) {	141,802✔
160	type = TSDB_MGMT_TABLE_USAGE;	×
161	} else if (strncasecmp(name, TSDB_INS_TABLE_FILESETS, len) == 0) {	141,802✔
162	type = TSDB_MGMT_TABLE_FILESETS;	×
163	} else if (strncasecmp(name, TSDB_INS_TABLE_VC_COLS, len) == 0) {	141,802✔
164	type = TSDB_MGMT_TABLE_VC_COL;	×
165	} else if (strncasecmp(name, TSDB_INS_TABLE_MOUNTS, len) == 0) {	141,802✔
166	type = TSDB_MGMT_TABLE_MOUNT;	15,358✔
167	} else if (strncasecmp(name, TSDB_INS_TABLE_RSMAS, len) == 0) {	126,444✔
168	type = TSDB_MGMT_TABLE_RSMA;	33,924✔
169	} else if (strncasecmp(name, TSDB_INS_TABLE_RETENTIONS, len) == 0) {	92,520✔
170	type = TSDB_MGMT_TABLE_RETENTION;	87,894✔
171	} else if (strncasecmp(name, TSDB_INS_TABLE_RETENTION_DETAILS, len) == 0) {	4,626✔
172	type = TSDB_MGMT_TABLE_RETENTION_DETAIL;	4,626✔
173	} else {
174	mError("invalid show name:%s len:%d", name, len);	×
175	}
176
177	return type;	5,099,814✔
178	}
179
180	static SShowObj mndCreateShowObj(SMnode pMnode, SRetrieveTableReq *pReq) {	5,099,814✔
181	SShowMgmt *pMgmt = &pMnode->showMgmt;	5,099,814✔
182
183	int64_t showId = atomic_add_fetch_64(&pMgmt->showId, 1);	5,099,814✔
184	if (showId == 0) atomic_add_fetch_64(&pMgmt->showId, 1);	5,099,814✔
185
186	int32_t size = sizeof(SShowObj);	5,099,814✔
187
188	SShowObj showObj = {0};	5,099,814✔
189
190	showObj.id = showId;	5,099,814✔
191	showObj.pMnode = pMnode;	5,099,814✔
192	showObj.type = convertToRetrieveType(pReq->tb, tListLen(pReq->tb));	5,099,814✔
193	(void)memcpy(showObj.db, pReq->db, TSDB_DB_FNAME_LEN);	5,099,814✔
194	tstrncpy(showObj.filterTb, pReq->filterTb, TSDB_TABLE_NAME_LEN);	5,099,814✔
195
196	int32_t keepTime = tsShellActivityTimer * 6 * 1000;	5,099,814✔
197	SShowObj *pShow = taosCachePut(pMgmt->cache, &showId, sizeof(int64_t), &showObj, size, keepTime);	5,099,814✔
198	if (pShow == NULL) {	5,099,814✔
199	terrno = TSDB_CODE_OUT_OF_MEMORY;	×
200	mError("show:0x%" PRIx64 ", failed to put into cache since %s", showId, terrstr());	×
201	return NULL;	×
202	}
203
204	mTrace("show:0x%" PRIx64 ", is created, data:%p", showId, pShow);	5,099,814✔
205	return pShow;	5,099,814✔
206	}
207
208	static void mndFreeShowObj(SShowObj *pShow) {	5,099,814✔
209	SMnode *pMnode = pShow->pMnode;	5,099,814✔
210	SShowMgmt *pMgmt = &pMnode->showMgmt;	5,099,814✔
211
212	ShowFreeIterFp freeFp = pMgmt->freeIterFps[pShow->type];	5,099,814✔
213	if (freeFp != NULL) {	5,099,814✔
214	if (pShow->pIter != NULL) {	4,663,566✔
215	mTrace("show:0x%" PRIx64 ", is destroying, data:%p, pIter:%p, ", pShow->id, pShow, pShow->pIter);	110✔
216
217	(*freeFp)(pMnode, pShow->pIter);	110✔
218
219	pShow->pIter = NULL;	110✔
220	}
221	}
222
223	mTrace("show:0x%" PRIx64 ", is destroyed, data:%p", pShow->id, pShow);	5,099,814✔
224	}	5,099,814✔
225
226	static SShowObj mndAcquireShowObj(SMnode pMnode, int64_t showId) {	126,783✔
227	SShowMgmt *pMgmt = &pMnode->showMgmt;	126,783✔
228
229	SShowObj *pShow = taosCacheAcquireByKey(pMgmt->cache, &showId, sizeof(showId));	126,783✔
230	if (pShow == NULL) {	126,783✔
231	mError("show:0x%" PRIx64 ", already destroyed", showId);	×
232	return NULL;	×
233	}
234
235	mTrace("show:0x%" PRIx64 ", acquired from cache, data:%p", pShow->id, pShow);	126,783✔
236	return pShow;	126,783✔
237	}
238
239	static void mndReleaseShowObj(SShowObj *pShow, bool forceRemove) {	5,224,499✔
240	if (pShow == NULL) return;	5,224,499✔
241	mTrace("show:0x%" PRIx64 ", released from cache, data:%p force:%d", pShow->id, pShow, forceRemove);	5,224,499✔
242
243	// A bug in tcache.c
244	forceRemove = 0;	5,224,499✔
245
246	SMnode *pMnode = pShow->pMnode;	5,224,499✔
247	SShowMgmt *pMgmt = &pMnode->showMgmt;	5,224,499✔
248	taosCacheRelease(pMgmt->cache, (void **)(&pShow), forceRemove);	5,224,499✔
249	}
250
251	static int32_t mndProcessRetrieveSysTableReq(SRpcMsg *pReq) {	5,226,597✔
252	int32_t code = 0;	5,226,597✔
253	SMnode *pMnode = pReq->info.node;	5,226,597✔
254	SShowMgmt *pMgmt = &pMnode->showMgmt;	5,226,597✔
255	SShowObj *pShow = NULL;	5,226,597✔
256	int32_t rowsToRead = SHOW_STEP_SIZE;	5,226,597✔
257	int32_t size = 0;	5,226,597✔
258	int32_t rowsRead = 0;	5,226,597✔
259	mDebug("mndProcessRetrieveSysTableReq start");	5,226,597✔
260	SRetrieveTableReq retrieveReq = {0};	5,226,597✔
261	TAOS_CHECK_RETURN(tDeserializeSRetrieveTableReq(pReq->pCont, pReq->contLen, &retrieveReq));	5,226,597✔
262
263	mDebug("process to retrieve systable req db:%s, tb:%s, compactId:%" PRId64, retrieveReq.db, retrieveReq.tb,	5,226,597✔
264	retrieveReq.compactId);
265
266	if (retrieveReq.showId == 0) {	5,226,597✔
267	STableMetaRsp *pMeta = taosHashGet(pMnode->infosMeta, retrieveReq.tb, strlen(retrieveReq.tb));	5,099,814✔
268	if (pMeta == NULL) {	5,099,814✔
269	pMeta = taosHashGet(pMnode->perfsMeta, retrieveReq.tb, strlen(retrieveReq.tb));	464,170✔
270	if (pMeta == NULL) {	464,170✔
271	code = TSDB_CODE_PAR_TABLE_NOT_EXIST;	×
272	mError("failed to process show-retrieve req:%p since %s", pShow, tstrerror(code));	×
273	TAOS_RETURN(code);	×
274	}
275	}
276
277	pShow = mndCreateShowObj(pMnode, &retrieveReq);	5,099,814✔
278	if (pShow == NULL) {	5,099,814✔
279	code = terrno;	×
280	mError("failed to process show-meta req since %s", tstrerror(code));	×
281	TAOS_RETURN(code);	×
282	}
283
284	pShow->pMeta = pMeta;	5,099,814✔
285	pShow->numOfColumns = pShow->pMeta->numOfColumns;	5,099,814✔
286	} else {
287	pShow = mndAcquireShowObj(pMnode, retrieveReq.showId);	126,783✔
288	if (pShow == NULL) {	126,783✔
289	code = TSDB_CODE_MND_INVALID_SHOWOBJ;	×
290	mError("failed to process show-retrieve req:%p since %s", pShow, tstrerror(code));	×
291	TAOS_RETURN(code);	×
292	}
293	}
294
295	if (pShow->type == TSDB_MGMT_TABLE_COL) { // expend capacity for ins_columns	5,226,597✔
296	rowsToRead = SHOW_COLS_STEP_SIZE;	525,025✔
297	} else if (pShow->type == TSDB_MGMT_TABLE_PRIVILEGES) {	4,701,572✔
298	rowsToRead = SHOW_PRIVILEGES_STEP_SIZE;	26,205✔
299	}
300	ShowRetrieveFp retrieveFp = pMgmt->retrieveFps[pShow->type];	5,226,597✔
301	if (retrieveFp == NULL) {	5,226,597✔
302	mndReleaseShowObj(pShow, false);	×
303	code = TSDB_CODE_MSG_NOT_PROCESSED;	×
304	mError("show:0x%" PRIx64 ", failed to retrieve data since %s", pShow->id, tstrerror(code));	×
305	TAOS_RETURN(code);	×
306	}
307
308	mDebug("show:0x%" PRIx64 ", start retrieve data, type:%d", pShow->id, pShow->type);	5,226,597✔
309	if (retrieveReq.user[0] != 0) {	5,226,597✔
310	(void)memcpy(pReq->info.conn.user, retrieveReq.user, TSDB_USER_LEN);	5,226,597✔
311	} else {
312	(void)memcpy(pReq->info.conn.user, TSDB_DEFAULT_USER, strlen(TSDB_DEFAULT_USER) + 1);	×
313	}
314	code = -1;	5,226,597✔
315	if (retrieveReq.db[0] &&	7,280,251✔
316	(code = mndCheckShowPrivilege(pMnode, pReq->info.conn.user, pShow->type, retrieveReq.db)) != 0) {	2,053,654✔
317	TAOS_RETURN(code);	2,098✔
318	}
319	if (pShow->type == TSDB_MGMT_TABLE_USER_FULL) {	5,224,499✔
320	if (strcmp(pReq->info.conn.user, "root") != 0) {	×
321	mError("The operation is not permitted, user:%s, pShow->type:%d", pReq->info.conn.user, pShow->type);	×
322	code = TSDB_CODE_MND_NO_RIGHTS;	×
323	TAOS_RETURN(code);	×
324	}
325	}
326
327	int32_t numOfCols = pShow->pMeta->numOfColumns;	5,224,499✔
328
329	SSDataBlock *pBlock = NULL;	5,224,499✔
330	code = createDataBlock(&pBlock);	5,224,499✔
331	if (code) {	5,224,499✔
332	TAOS_RETURN(code);	×
333	}
334
335	for (int32_t i = 0; i < numOfCols; ++i) {	72,872,525✔
336	SColumnInfoData idata = {0};	67,648,026✔
337
338	SSchema *p = &pShow->pMeta->pSchemas[i];	67,648,026✔
339
340	idata.info.bytes = p->bytes;	67,648,026✔
341	idata.info.type = p->type;	67,648,026✔
342	idata.info.colId = p->colId;	67,648,026✔
343	TAOS_CHECK_RETURN(blockDataAppendColInfo(pBlock, &idata));	67,648,026✔
344	}
345
346	TAOS_CHECK_RETURN(blockDataEnsureCapacity(pBlock, rowsToRead));	5,224,499✔
347
348	if (mndCheckRetrieveFinished(pShow)) {	5,224,499✔
349	mDebug("show:0x%" PRIx64 ", read finished, numOfRows:%d", pShow->id, pShow->numOfRows);	×
350	rowsRead = 0;	×
351	} else {
352	rowsRead = (*retrieveFp)(pReq, pShow, pBlock, rowsToRead);	5,224,499✔
353	if (rowsRead < 0) {	5,224,499✔
354	code = rowsRead;	2,274✔
355	mDebug("show:0x%" PRIx64 ", retrieve completed", pShow->id);	2,274✔
356	mndReleaseShowObj(pShow, true);	2,274✔
357	blockDataDestroy(pBlock);	2,274✔
358	TAOS_RETURN(code);	2,274✔
359	}
360
361	pBlock->info.rows = rowsRead;	5,222,225✔
362	mDebug("show:0x%" PRIx64 ", stop retrieve data, rowsRead:%d numOfRows:%d", pShow->id, rowsRead, pShow->numOfRows);	5,222,225✔
363	}
364
365	size_t dataEncodeBufSize = blockGetEncodeSize(pBlock);	5,222,225✔
366	size = sizeof(SRetrieveMetaTableRsp) + sizeof(int32_t) + sizeof(SSysTableSchema) * pShow->pMeta->numOfColumns +	5,222,225✔
367	dataEncodeBufSize;
368
369	SRetrieveMetaTableRsp *pRsp = rpcMallocCont(size);	5,222,225✔
370	if (pRsp == NULL) {	5,222,225✔
371	mError("show:0x%" PRIx64 ", failed to retrieve data since %s", pShow->id, tstrerror(terrno));	×
372	code = terrno;	×
373	goto _exit;	×
374	}
375
376	pRsp->handle = htobe64(pShow->id);	5,222,225✔
377
378	if (rowsRead > 0) {	5,222,225✔
379	char *pStart = pRsp->data;	4,853,139✔
380	SSchema *ps = pShow->pMeta->pSchemas;	4,853,139✔
381
382	(int32_t )pStart = htonl(pShow->pMeta->numOfColumns);	4,853,139✔
383	pStart += sizeof(int32_t); // number of columns	4,853,139✔
384
385	for (int32_t i = 0; i < pShow->pMeta->numOfColumns; ++i) {	68,961,456✔
386	SSysTableSchema pSchema = (SSysTableSchema )pStart;	64,108,317✔
387	pSchema->bytes = htonl(ps[i].bytes);	64,108,317✔
388	pSchema->colId = htons(ps[i].colId);	64,108,317✔
389	pSchema->type = ps[i].type;	64,108,317✔
390
391	pStart += sizeof(SSysTableSchema);	64,108,317✔
392	}
393
394	int32_t len = blockEncode(pBlock, pStart, dataEncodeBufSize, pShow->pMeta->numOfColumns);	4,853,139✔
395	if (len < 0) {	4,853,139✔
396	mError("show:0x%" PRIx64 ", failed to retrieve data since %s", pShow->id, tstrerror(terrno));	×
397	code = terrno;	×
398	return code;	×
399	}
400	}
401
402	pRsp->numOfRows = htonl(rowsRead);	5,222,225✔
403	pRsp->precision = TSDB_TIME_PRECISION_MILLI; // millisecond time precision	5,222,225✔
404	pReq->info.rsp = pRsp;	5,222,225✔
405	pReq->info.rspLen = size;	5,222,225✔
406
407	if (rowsRead == 0 \|\| mndCheckRetrieveFinished(pShow)) {	5,222,225✔
408	pRsp->completed = 1;	5,095,332✔
409	mDebug("show:0x%" PRIx64 ", retrieve completed", pShow->id);	5,095,332✔
410	mndReleaseShowObj(pShow, true);	5,095,332✔
411	} else {
412	mDebug("show:0x%" PRIx64 ", retrieve not completed yet", pShow->id);	126,893✔
413	mndReleaseShowObj(pShow, false);	126,893✔
414	}
415
416	blockDataDestroy(pBlock);	5,222,225✔
417	return TSDB_CODE_SUCCESS;	5,222,225✔
418	_exit:	×
419	mndReleaseShowObj(pShow, false);	×
420	blockDataDestroy(pBlock);	×
421	if (pRsp) {	×
422	rpcFreeCont(pRsp);	×
423	}
424	return code;	×
425	}
426
427	static bool mndCheckRetrieveFinished(SShowObj *pShow) {	10,077,638✔
428	if (pShow->pIter == NULL && pShow->numOfRows != 0) {	10,077,638✔
429	return true;	4,726,246✔
430	}
431	return false;	5,351,392✔
432	}
433
434	void mndAddShowRetrieveHandle(SMnode *pMnode, EShowType showType, ShowRetrieveFp fp) {	23,504,448✔
435	SShowMgmt *pMgmt = &pMnode->showMgmt;	23,504,448✔
436	pMgmt->retrieveFps[showType] = fp;	23,504,448✔
437	}	23,504,448✔
438
439	void mndAddShowFreeIterHandle(SMnode *pMnode, EShowType showType, ShowFreeIterFp fp) {	19,587,040✔
440	SShowMgmt *pMgmt = &pMnode->showMgmt;	19,587,040✔
441	pMgmt->freeIterFps[showType] = fp;	19,587,040✔
442	}	19,587,040✔

taosdata / TDengine / #4871

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