vnode.h 2.5 KB
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/*
 * 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/>.
 */
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#ifndef TDENGINE_VNODE_H
#define TDENGINE_VNODE_H
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#ifdef __cplusplus
extern "C" {
#endif
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#include "trpc.h"
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#include "twal.h"

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typedef struct {
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  int32_t len;
  void *  rsp;
  void *  qhandle;  // used by query and retrieve msg
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} SRspRet;

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typedef struct {
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  int32_t code;
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  int32_t contLen;
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  void *  rpcHandle;
  void *  rpcAhandle;
  void *  qhandle;
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  void *  pVnode;
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  int8_t  qtype;
  int8_t  msgType;
  SRspRet rspRet;
  char    pCont[];
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} SVReadMsg;
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typedef struct {
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  int32_t  code;
  int32_t  processedCount;
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  int32_t  qtype;
  void *   pVnode;
  SRpcMsg  rpcMsg;
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  SRspRet  rspRet;
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  char     reserveForSync[24];
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  SWalHead pHead;
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} SVWriteMsg;

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// vnodeStatus
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extern char *vnodeStatus[];

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// vnodeMain
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int32_t vnodeCreate(SCreateVnodeMsg *pVnodeCfg);
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int32_t vnodeDrop(int32_t vgId);
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int32_t vnodeOpen(int32_t vgId);
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int32_t vnodeAlter(void *pVnode, SCreateVnodeMsg *pVnodeCfg);
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int32_t vnodeClose(int32_t vgId);
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// vnodeMgmt
int32_t vnodeInitMgmt();
void    vnodeCleanupMgmt();
void*   vnodeAcquire(int32_t vgId);
void    vnodeRelease(void *pVnode);
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void*   vnodeGetWal(void *pVnode);
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int32_t vnodeGetVnodeList(int32_t vnodeList[], int32_t *numOfVnodes);
void    vnodeBuildStatusMsg(void *pStatus);
void    vnodeSetAccess(SVgroupAccess *pAccess, int32_t numOfVnodes);
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// vnodeWrite
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int32_t vnodeWriteToWQueue(void *pVnode, void *pHead, int32_t qtype, void *pRpcMsg);
void    vnodeFreeFromWQueue(void *pVnode, SVWriteMsg *pWrite);
int32_t vnodeProcessWrite(void *pVnode, void *pHead, int32_t qtype, void *pRspRet);
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// vnodeSync
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void    vnodeConfirmForward(void *pVnode, uint64_t version, int32_t code, bool force);
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// vnodeRead
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int32_t vnodeWriteToRQueue(void *pVnode, void *pCont, int32_t contLen, int8_t qtype, void *rparam);
void    vnodeFreeFromRQueue(void *pVnode, SVReadMsg *pRead);
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int32_t vnodeProcessRead(void *pVnode, SVReadMsg *pRead);
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#ifdef __cplusplus
}
#endif

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#endif