#4488

Committed 12 Jul 2025 07:47AM UTC coverage: 62.207% (-0.7%) from 62.948%

Build # #4488

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docs: update stream docs (#31822)

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76.59

/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_INS_TABLE_STREAM_TASKS, len) == 0) {
    type = TSDB_MGMT_TABLE_STREAM_TASKS;
  } 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_COMPACT_DETAILS, len) == 0) {
    type = TSDB_MGMT_TABLE_COMPACT_DETAIL;
  } 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_MOUNTS, len) == 0) {
    type = TSDB_MGMT_TABLE_MOUNT;
  } 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(code));
    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(code));
      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) {	2,467✔
34	int32_t code = 0;	2,467✔
35	SShowMgmt *pMgmt = &pMnode->showMgmt;	2,467✔
36
37	pMgmt->cache = taosCacheInit(TSDB_DATA_TYPE_INT, 5000, true, (__cache_free_fn_t)mndFreeShowObj, "show");	2,467✔
38	if (pMgmt->cache == NULL) {	2,467!
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);	2,467✔
45	TAOS_RETURN(code);	2,467✔
46	}
47
48	void mndCleanupShow(SMnode *pMnode) {	2,466✔
49	SShowMgmt *pMgmt = &pMnode->showMgmt;	2,466✔
50	if (pMgmt->cache != NULL) {	2,466!
51	taosCacheCleanup(pMgmt->cache);	2,466✔
52	pMgmt->cache = NULL;	2,466✔
53	}
54	}	2,466✔
55
56	static int32_t convertToRetrieveType(char *name, int32_t len) {	18,235✔
57	int32_t type = -1;	18,235✔
58
59	if (strncasecmp(name, TSDB_INS_TABLE_DNODES, len) == 0) {	18,235✔
60	type = TSDB_MGMT_TABLE_DNODE;	1,857✔
61	} else if (strncasecmp(name, TSDB_INS_TABLE_MNODES, len) == 0) {	16,378✔
62	type = TSDB_MGMT_TABLE_MNODE;	548✔
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) {	15,830✔
68	type = TSDB_MGMT_TABLE_QNODE;	34✔
69	} else if (strncasecmp(name, TSDB_INS_TABLE_SNODES, len) == 0) {	15,796✔
70	type = TSDB_MGMT_TABLE_SNODE;	26✔
71	} else if (strncasecmp(name, TSDB_INS_TABLE_ANODES, len) == 0) {	15,770✔
72	type = TSDB_MGMT_TABLE_ANODE;	4✔
73	} else if (strncasecmp(name, TSDB_INS_TABLE_ANODES_FULL, len) == 0) {	15,766✔
74	type = TSDB_MGMT_TABLE_ANODE_FULL;	1✔
75	} else if (strncasecmp(name, TSDB_INS_TABLE_BNODES, len) == 0) {	15,765✔
76	type = TSDB_MGMT_TABLE_BNODE;	278✔
77	} else if (strncasecmp(name, TSDB_INS_TABLE_ARBGROUPS, len) == 0) {	15,487!
78	type = TSDB_MGMT_TABLE_ARBGROUP;	×
79	} else if (strncasecmp(name, TSDB_INS_TABLE_CLUSTER, len) == 0) {	15,487✔
80	type = TSDB_MGMT_TABLE_CLUSTER;	12✔
81	} else if (strncasecmp(name, TSDB_INS_TABLE_DATABASES, len) == 0) {	15,475✔
82	type = TSDB_MGMT_TABLE_DB;	1,270✔
83	} else if (strncasecmp(name, TSDB_INS_TABLE_FUNCTIONS, len) == 0) {	14,205✔
84	type = TSDB_MGMT_TABLE_FUNC;	34✔
85	} else if (strncasecmp(name, TSDB_INS_TABLE_INDEXES, len) == 0) {	14,171✔
86	type = TSDB_MGMT_TABLE_INDEX;	387✔
87	} else if (strncasecmp(name, TSDB_INS_TABLE_STABLES, len) == 0) {	13,784✔
88	type = TSDB_MGMT_TABLE_STB;	1,032✔
89	} else if (strncasecmp(name, TSDB_INS_TABLE_TABLES, len) == 0) {	12,752!
90	type = TSDB_MGMT_TABLE_TABLE;	×
91	} else if (strncasecmp(name, TSDB_INS_TABLE_TAGS, len) == 0) {	12,752!
92	type = TSDB_MGMT_TABLE_TAG;	×
93	} else if (strncasecmp(name, TSDB_INS_TABLE_COLS, len) == 0) {	12,752✔
94	type = TSDB_MGMT_TABLE_COL;	6,833✔
95	} else if (strncasecmp(name, TSDB_INS_TABLE_TABLE_DISTRIBUTED, len) == 0) {	5,919!
96	// type = TSDB_MGMT_TABLE_DIST;
97	} else if (strncasecmp(name, TSDB_INS_TABLE_USERS, len) == 0) {	5,919✔
98	type = TSDB_MGMT_TABLE_USER;	61✔
99	} else if (strncasecmp(name, TSDB_INS_TABLE_USERS_FULL, len) == 0) {	5,858!
100	type = TSDB_MGMT_TABLE_USER_FULL;	×
101	} else if (strncasecmp(name, TSDB_INS_TABLE_LICENCES, len) == 0) {	5,858✔
102	type = TSDB_MGMT_TABLE_GRANTS;	97✔
103	} else if (strncasecmp(name, TSDB_INS_TABLE_VGROUPS, len) == 0) {	5,761✔
104	type = TSDB_MGMT_TABLE_VGROUP;	792✔
105	} else if (strncasecmp(name, TSDB_PERFS_TABLE_CONSUMERS, len) == 0) {	4,969✔
106	type = TSDB_MGMT_TABLE_CONSUMERS;	92✔
107	} else if (strncasecmp(name, TSDB_INS_TABLE_SUBSCRIPTIONS, len) == 0) {	4,877✔
108	type = TSDB_MGMT_TABLE_SUBSCRIPTIONS;	89✔
109	} else if (strncasecmp(name, TSDB_PERFS_TABLE_TRANS, len) == 0) {	4,788✔
110	type = TSDB_MGMT_TABLE_TRANS;	186✔
111	} else if (strncasecmp(name, TSDB_PERFS_TABLE_SMAS, len) == 0) {	4,602!
112	type = TSDB_MGMT_TABLE_SMAS;	×
113	} else if (strncasecmp(name, TSDB_INS_TABLE_CONFIGS, len) == 0) {	4,602✔
114	type = TSDB_MGMT_TABLE_CONFIGS;	7✔
115	} else if (strncasecmp(name, TSDB_PERFS_TABLE_CONNECTIONS, len) == 0) {	4,595✔
116	type = TSDB_MGMT_TABLE_CONNS;	50✔
117	} else if (strncasecmp(name, TSDB_PERFS_TABLE_QUERIES, len) == 0) {	4,545✔
118	type = TSDB_MGMT_TABLE_QUERIES;	16✔
119	} else if (strncasecmp(name, TSDB_INS_TABLE_VNODES, len) == 0) {	4,529✔
120	type = TSDB_MGMT_TABLE_VNODES;	111✔
121	} else if (strncasecmp(name, TSDB_INS_TABLE_TOPICS, len) == 0) {	4,418✔
122	type = TSDB_MGMT_TABLE_TOPICS;	84✔
123	} else if (strncasecmp(name, TSDB_INS_TABLE_STREAMS, len) == 0) {	4,334✔
124	type = TSDB_MGMT_TABLE_STREAMS;	233✔
125	} else if (strncasecmp(name, TSDB_PERFS_TABLE_APPS, len) == 0) {	4,101✔
126	type = TSDB_MGMT_TABLE_APPS;	16✔
127	} else if (strncasecmp(name, TSDB_INS_TABLE_STREAM_TASKS, len) == 0) {	4,085✔
128	type = TSDB_MGMT_TABLE_STREAM_TASKS;	3,808✔
129	} else if (strncasecmp(name, TSDB_INS_TABLE_USER_PRIVILEGES, len) == 0) {	277✔
130	type = TSDB_MGMT_TABLE_PRIVILEGES;	23✔
131	} else if (strncasecmp(name, TSDB_INS_TABLE_VIEWS, len) == 0) {	254✔
132	type = TSDB_MGMT_TABLE_VIEWS;	73✔
133	} else if (strncasecmp(name, TSDB_INS_TABLE_COMPACTS, len) == 0) {	181✔
134	type = TSDB_MGMT_TABLE_COMPACT;	71✔
135	} else if (strncasecmp(name, TSDB_INS_TABLE_COMPACT_DETAILS, len) == 0) {	110!
136	type = TSDB_MGMT_TABLE_COMPACT_DETAIL;	×
137	} else if (strncasecmp(name, TSDB_INS_TABLE_TRANSACTION_DETAILS, len) == 0) {	110!
138	type = TSDB_MGMT_TABLE_TRANSACTION_DETAIL;	×
139	} else if (strncasecmp(name, TSDB_INS_TABLE_GRANTS_FULL, len) == 0) {	110✔
140	type = TSDB_MGMT_TABLE_GRANTS_FULL;	79✔
141	} else if (strncasecmp(name, TSDB_INS_TABLE_GRANTS_LOGS, len) == 0) {	31✔
142	type = TSDB_MGMT_TABLE_GRANTS_LOGS;	11✔
143	} else if (strncasecmp(name, TSDB_INS_TABLE_MACHINES, len) == 0) {	20✔
144	type = TSDB_MGMT_TABLE_MACHINES;	9✔
145	} else if (strncasecmp(name, TSDB_INS_TABLE_ENCRYPTIONS, len) == 0) {	11✔
146	type = TSDB_MGMT_TABLE_ENCRYPTIONS;	5✔
147	} else if (strncasecmp(name, TSDB_INS_TABLE_TSMAS, len) == 0) {	6!
148	type = TSDB_MGMT_TABLE_TSMAS;	6✔
149	} else if (strncasecmp(name, TSDB_INS_DISK_USAGE, len) == 0) {	×
150	type = TSDB_MGMT_TABLE_USAGE;	×
151	} else if (strncasecmp(name, TSDB_INS_TABLE_FILESETS, len) == 0) {	×
152	type = TSDB_MGMT_TABLE_FILESETS;	×
153	} else if (strncasecmp(name, TSDB_INS_TABLE_MOUNTS, len) == 0) {	×
154	type = TSDB_MGMT_TABLE_MOUNT;	×
155	} else {
156	mError("invalid show name:%s len:%d", name, len);	×
157	}
158
159	return type;	18,235✔
160	}
161
162	static SShowObj mndCreateShowObj(SMnode pMnode, SRetrieveTableReq *pReq) {	18,234✔
163	SShowMgmt *pMgmt = &pMnode->showMgmt;	18,234✔
164
165	int64_t showId = atomic_add_fetch_64(&pMgmt->showId, 1);	18,234✔
166	if (showId == 0) atomic_add_fetch_64(&pMgmt->showId, 1);	18,235!
167
168	int32_t size = sizeof(SShowObj);	18,235✔
169
170	SShowObj showObj = {0};	18,235✔
171
172	showObj.id = showId;	18,235✔
173	showObj.pMnode = pMnode;	18,235✔
174	showObj.type = convertToRetrieveType(pReq->tb, tListLen(pReq->tb));	18,235✔
175	(void)memcpy(showObj.db, pReq->db, TSDB_DB_FNAME_LEN);	18,235✔
176	tstrncpy(showObj.filterTb, pReq->filterTb, TSDB_TABLE_NAME_LEN);	18,235✔
177
178	int32_t keepTime = tsShellActivityTimer * 6 * 1000;	18,235✔
179	SShowObj *pShow = taosCachePut(pMgmt->cache, &showId, sizeof(int64_t), &showObj, size, keepTime);	18,235✔
180	if (pShow == NULL) {	18,235!
181	terrno = TSDB_CODE_OUT_OF_MEMORY;	×
182	mError("show:0x%" PRIx64 ", failed to put into cache since %s", showId, terrstr());	×
183	return NULL;	×
184	}
185
186	mTrace("show:0x%" PRIx64 ", is created, data:%p", showId, pShow);	18,235✔
187	return pShow;	18,235✔
188	}
189
190	static void mndFreeShowObj(SShowObj *pShow) {	18,235✔
191	SMnode *pMnode = pShow->pMnode;	18,235✔
192	SShowMgmt *pMgmt = &pMnode->showMgmt;	18,235✔
193
194	ShowFreeIterFp freeFp = pMgmt->freeIterFps[pShow->type];	18,235✔
195	if (freeFp != NULL) {	18,235✔
196	if (pShow->pIter != NULL) {	18,075✔
197	mTrace("show:0x%" PRIx64 ", is destroying, data:%p, pIter:%p, ", pShow->id, pShow, pShow->pIter);	1!
198
199	(*freeFp)(pMnode, pShow->pIter);	1✔
200
201	pShow->pIter = NULL;	1✔
202	}
203	}
204
205	mTrace("show:0x%" PRIx64 ", is destroyed, data:%p", pShow->id, pShow);	18,235✔
206	}	18,235✔
207
208	static SShowObj mndAcquireShowObj(SMnode pMnode, int64_t showId) {	86✔
209	SShowMgmt *pMgmt = &pMnode->showMgmt;	86✔
210
211	SShowObj *pShow = taosCacheAcquireByKey(pMgmt->cache, &showId, sizeof(showId));	86✔
212	if (pShow == NULL) {	86!
213	mError("show:0x%" PRIx64 ", already destroyed", showId);	×
214	return NULL;	×
215	}
216
217	mTrace("show:0x%" PRIx64 ", acquired from cache, data:%p", pShow->id, pShow);	86!
218	return pShow;	86✔
219	}
220
221	static void mndReleaseShowObj(SShowObj *pShow, bool forceRemove) {	18,317✔
222	if (pShow == NULL) return;	18,317!
223	mTrace("show:0x%" PRIx64 ", released from cache, data:%p force:%d", pShow->id, pShow, forceRemove);	18,317✔
224
225	// A bug in tcache.c
226	forceRemove = 0;	18,317✔
227
228	SMnode *pMnode = pShow->pMnode;	18,317✔
229	SShowMgmt *pMgmt = &pMnode->showMgmt;	18,317✔
230	taosCacheRelease(pMgmt->cache, (void **)(&pShow), forceRemove);	18,317✔
231	}
232
233	static int32_t mndProcessRetrieveSysTableReq(SRpcMsg *pReq) {	18,323✔
234	int32_t code = 0;	18,323✔
235	SMnode *pMnode = pReq->info.node;	18,323✔
236	SShowMgmt *pMgmt = &pMnode->showMgmt;	18,323✔
237	SShowObj *pShow = NULL;	18,323✔
238	int32_t rowsToRead = SHOW_STEP_SIZE;	18,323✔
239	int32_t size = 0;	18,323✔
240	int32_t rowsRead = 0;	18,323✔
241	mDebug("mndProcessRetrieveSysTableReq start");	18,323✔
242	SRetrieveTableReq retrieveReq = {0};	18,323✔
243	TAOS_CHECK_RETURN(tDeserializeSRetrieveTableReq(pReq->pCont, pReq->contLen, &retrieveReq));	18,323✔
244
245	mDebug("process to retrieve systable req db:%s, tb:%s, compactId:%" PRId64, retrieveReq.db, retrieveReq.tb,	18,321✔
246	retrieveReq.compactId);
247
248	if (retrieveReq.showId == 0) {	18,321✔
249	STableMetaRsp *pMeta = taosHashGet(pMnode->infosMeta, retrieveReq.tb, strlen(retrieveReq.tb));	18,235✔
250	if (pMeta == NULL) {	18,235✔
251	pMeta = taosHashGet(pMnode->perfsMeta, retrieveReq.tb, strlen(retrieveReq.tb));	360✔
252	if (pMeta == NULL) {	360!
253	code = TSDB_CODE_PAR_TABLE_NOT_EXIST;	×
254	mError("failed to process show-retrieve req:%p since %s", pShow, tstrerror(code));	×
255	TAOS_RETURN(code);	×
256	}
257	}
258
259	pShow = mndCreateShowObj(pMnode, &retrieveReq);	18,235✔
260	if (pShow == NULL) {	18,235!
261	code = terrno;	×
262	mError("failed to process show-meta req since %s", tstrerror(code));	×
263	TAOS_RETURN(code);	×
264	}
265
266	pShow->pMeta = pMeta;	18,235✔
267	pShow->numOfColumns = pShow->pMeta->numOfColumns;	18,235✔
268	} else {
269	pShow = mndAcquireShowObj(pMnode, retrieveReq.showId);	86✔
270	if (pShow == NULL) {	86!
271	code = TSDB_CODE_MND_INVALID_SHOWOBJ;	×
272	mError("failed to process show-retrieve req:%p since %s", pShow, tstrerror(code));	×
273	TAOS_RETURN(code);	×
274	}
275	}
276
277	if (pShow->type == TSDB_MGMT_TABLE_COL) { // expend capacity for ins_columns	18,321✔
278	rowsToRead = SHOW_COLS_STEP_SIZE;	6,857✔
279	} else if (pShow->type == TSDB_MGMT_TABLE_PRIVILEGES) {	11,464✔
280	rowsToRead = SHOW_PRIVILEGES_STEP_SIZE;	23✔
281	}
282	ShowRetrieveFp retrieveFp = pMgmt->retrieveFps[pShow->type];	18,321✔
283	if (retrieveFp == NULL) {	18,321!
284	mndReleaseShowObj(pShow, false);	×
285	code = TSDB_CODE_MSG_NOT_PROCESSED;	×
286	mError("show:0x%" PRIx64 ", failed to retrieve data since %s", pShow->id, tstrerror(code));	×
287	TAOS_RETURN(code);	×
288	}
289
290	mDebug("show:0x%" PRIx64 ", start retrieve data, type:%d", pShow->id, pShow->type);	18,321✔
291	if (retrieveReq.user[0] != 0) {	18,321✔
292	(void)memcpy(pReq->info.conn.user, retrieveReq.user, TSDB_USER_LEN);	18,299✔
293	} else {
294	(void)memcpy(pReq->info.conn.user, TSDB_DEFAULT_USER, strlen(TSDB_DEFAULT_USER) + 1);	22✔
295	}
296	code = -1;	18,321✔
297	if (retrieveReq.db[0] &&	22,152✔
298	(code = mndCheckShowPrivilege(pMnode, pReq->info.conn.user, pShow->type, retrieveReq.db)) != 0) {	3,831✔
299	TAOS_RETURN(code);	4✔
300	}
301	if (pShow->type == TSDB_MGMT_TABLE_USER_FULL) {	18,317!
302	if (strcmp(pReq->info.conn.user, "root") != 0) {	×
303	mError("The operation is not permitted, user:%s, pShow->type:%d", pReq->info.conn.user, pShow->type);	×
304	code = TSDB_CODE_MND_NO_RIGHTS;	×
305	TAOS_RETURN(code);	×
306	}
307	}
308
309	int32_t numOfCols = pShow->pMeta->numOfColumns;	18,317✔
310
311	SSDataBlock *pBlock = NULL;	18,317✔
312	code = createDataBlock(&pBlock);	18,317✔
313	if (code) {	18,317!
314	TAOS_RETURN(code);	×
315	}
316
317	for (int32_t i = 0; i < numOfCols; ++i) {	296,387✔
318	SColumnInfoData idata = {0};	278,069✔
319
320	SSchema *p = &pShow->pMeta->pSchemas[i];	278,069✔
321
322	idata.info.bytes = p->bytes;	278,069✔
323	idata.info.type = p->type;	278,069✔
324	idata.info.colId = p->colId;	278,069✔
325	TAOS_CHECK_RETURN(blockDataAppendColInfo(pBlock, &idata));	278,069!
326	}
327
328	TAOS_CHECK_RETURN(blockDataEnsureCapacity(pBlock, rowsToRead));	18,318!
329
330	if (mndCheckRetrieveFinished(pShow)) {	18,317!
331	mDebug("show:0x%" PRIx64 ", read finished, numOfRows:%d", pShow->id, pShow->numOfRows);	×
332	rowsRead = 0;	×
333	} else {
334	rowsRead = (*retrieveFp)(pReq, pShow, pBlock, rowsToRead);	18,317✔
335	if (rowsRead < 0) {	18,317✔
336	code = rowsRead;	7✔
337	mDebug("show:0x%" PRIx64 ", retrieve completed", pShow->id);	7!
338	mndReleaseShowObj(pShow, true);	7✔
339	blockDataDestroy(pBlock);	7✔
340	TAOS_RETURN(code);	7✔
341	}
342
343	pBlock->info.rows = rowsRead;	18,310✔
344	mDebug("show:0x%" PRIx64 ", stop retrieve data, rowsRead:%d numOfRows:%d", pShow->id, rowsRead, pShow->numOfRows);	18,310✔
345	}
346
347	size_t dataEncodeBufSize = blockGetEncodeSize(pBlock);	18,310✔
348	size = sizeof(SRetrieveMetaTableRsp) + sizeof(int32_t) + sizeof(SSysTableSchema) * pShow->pMeta->numOfColumns +	18,310✔
349	dataEncodeBufSize;
350
351	SRetrieveMetaTableRsp *pRsp = rpcMallocCont(size);	18,310✔
352	if (pRsp == NULL) {	18,310!
353	mError("show:0x%" PRIx64 ", failed to retrieve data since %s", pShow->id, tstrerror(code));	×
354	code = terrno;	×
355	goto _exit;	×
356	}
357
358	pRsp->handle = htobe64(pShow->id);	18,310✔
359
360	if (rowsRead > 0) {	18,310✔
361	char *pStart = pRsp->data;	17,819✔
362	SSchema *ps = pShow->pMeta->pSchemas;	17,819✔
363
364	(int32_t )pStart = htonl(pShow->pMeta->numOfColumns);	17,819✔
365	pStart += sizeof(int32_t); // number of columns	17,819✔
366
367	for (int32_t i = 0; i < pShow->pMeta->numOfColumns; ++i) {	290,126✔
368	SSysTableSchema pSchema = (SSysTableSchema )pStart;	272,307✔
369	pSchema->bytes = htonl(ps[i].bytes);	272,307✔
370	pSchema->colId = htons(ps[i].colId);	272,307✔
371	pSchema->type = ps[i].type;	272,307✔
372
373	pStart += sizeof(SSysTableSchema);	272,307✔
374	}
375
376	int32_t len = blockEncode(pBlock, pStart, dataEncodeBufSize, pShow->pMeta->numOfColumns);	17,819✔
377	if (len < 0) {	17,819!
378	mError("show:0x%" PRIx64 ", failed to retrieve data since %s", pShow->id, tstrerror(code));	×
379	code = terrno;	×
380	return code;	×
381	}
382	}
383
384	pRsp->numOfRows = htonl(rowsRead);	18,310✔
385	pRsp->precision = TSDB_TIME_PRECISION_MILLI; // millisecond time precision	18,310✔
386	pReq->info.rsp = pRsp;	18,310✔
387	pReq->info.rspLen = size;	18,310✔
388
389	if (rowsRead == 0 \|\| mndCheckRetrieveFinished(pShow)) {	18,310✔
390	pRsp->completed = 1;	18,223✔
391	mDebug("show:0x%" PRIx64 ", retrieve completed", pShow->id);	18,223✔
392	mndReleaseShowObj(pShow, true);	18,223✔
393	} else {
394	mDebug("show:0x%" PRIx64 ", retrieve not completed yet", pShow->id);	87!
395	mndReleaseShowObj(pShow, false);	87✔
396	}
397
398	blockDataDestroy(pBlock);	18,310✔
399	return TSDB_CODE_SUCCESS;	18,310✔
400	_exit:	×
401	mndReleaseShowObj(pShow, false);	×
402	blockDataDestroy(pBlock);	×
403	if (pRsp) {	×
404	rpcFreeCont(pRsp);	×
405	}
406	return code;	×
407	}
408
409	static bool mndCheckRetrieveFinished(SShowObj *pShow) {	36,136✔
410	if (pShow->pIter == NULL && pShow->numOfRows != 0) {	36,136✔
411	return true;	17,732✔
412	}
413	return false;	18,404✔
414	}
415
416	void mndAddShowRetrieveHandle(SMnode *pMnode, EShowType showType, ShowRetrieveFp fp) {	98,680✔
417	SShowMgmt *pMgmt = &pMnode->showMgmt;	98,680✔
418	pMgmt->retrieveFps[showType] = fp;	98,680✔
419	}	98,680✔
420
421	void mndAddShowFreeIterHandle(SMnode *pMnode, EShowType showType, ShowFreeIterFp fp) {	91,279✔
422	SShowMgmt *pMgmt = &pMnode->showMgmt;	91,279✔
423	pMgmt->freeIterFps[showType] = fp;	91,279✔
424	}	91,279✔

taosdata / TDengine / #4488

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